Stora Enso Oyj

Finland

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[Owner] Stora Enso Oyj 1,588
Stora Enso AB 38
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2025 May (MTD) 1
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IPC Class
D21H 11/18 - Highly hydrated, swollen or fibrillatable fibres 351
C08J 5/18 - Manufacture of films or sheets 150
B32B 27/10 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of paper or cardboard 141
C08L 1/02 - CelluloseModified cellulose 130
B32B 29/00 - Layered products essentially comprising paper or cardboard 116
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NICE Class
16 - Paper, cardboard and goods made from these materials 302
01 - Chemical and biological materials for industrial, scientific and agricultural use 71
19 - Non-metallic building materials 53
35 - Advertising and business services 51
42 - Scientific, technological and industrial services, research and design 50
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1.

A METHOD FOR PRODUCING A CARBON ENRICHED MATERIAL

      
Application Number IB2024060187
Publication Number 2025/088440
Status In Force
Filing Date 2024-10-17
Publication Date 2025-05-01
Owner STORA ENSO OYJ (Finland)
Inventor
  • Olsson, Vilhelm
  • Lindström, Mats
  • Shetty, Abhishek

Abstract

The present invention relates to a method for producing a carbon enriched material having a total metal content below 500 ppm and a pH value in the range of from 6.0 to 8.0. The method involves the steps of providing a biobased carbon precursor; subjecting the biobased carbon precursor to heat treatment in an inert atmosphere at one or more temperatures in the range of from 500 to 1500°C, wherein the heat treatment is carried out for a total time of from 0.5 to 10 hours, to obtain a carbon enriched material; providing the carbon enriched material with a carbon-based coating; subjecting the carbon enriched material to a de-mineralization treatment in an atmosphere comprising at least one halogen-containing gas, wherein the de¬ mineralization treatment is carried out at one or more temperatures in the range of from 800 to 1500°C for a time period in the range of from 5 minutes to 10 hours, so as to obtain a carbon enriched material having a total metal content below 500 ppm and a pH in the range of from 6.0 to 8.0; wherein the de-mineralization treatment is carried out after providing the carbon enriched material with a carbon-based coating.

IPC Classes  ?

  • C01B 32/05 - Preparation or purification of carbon not covered by groups , , ,
  • C10B 53/02 - Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form of cellulose-containing material
  • H01M 4/133 - Electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx
  • H01M 4/1393 - Processes of manufacture of electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx
  • H01M 4/583 - Carbonaceous material, e.g. graphite-intercalation compounds or CFx
  • D21C 11/00 - Regeneration of pulp liquors

2.

FREE-STANDING WET LOW-DENSITY CELLULOSE FIBRE FOAM

      
Application Number 18722216
Status Pending
Filing Date 2022-12-22
First Publication Date 2025-04-24
Owner Stora Enso OYJ (Finland)
Inventor
  • Köklükaya, Oruç
  • Hult Torron, Daniel
  • Ghanadpour, Maryam

Abstract

The present invention relates to a foam composition comprising cellulose fibres, a water-soluble thickener, and surfactants. The foam composition can be used for preparing a foam that can be dried without constraints to form three-dimensional objects.

IPC Classes  ?

  • C08J 9/236 - Forming foamed products using binding agents
  • C08J 9/00 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof

3.

PROCESS FOR THE PREPARATION OF A BONDING RESIN

      
Application Number 18722211
Status Pending
Filing Date 2022-12-19
First Publication Date 2025-04-24
Owner Stora Enso OYJ (Finland)
Inventor
  • Zafar, Ashar
  • Areskogh, Dimitri
  • Pham, Huynh Tram Anh

Abstract

The present invention relates to a bonding resin useful for example in the manufacture of laminates, mineral wool insulation and wood products such as plywood, oriented strandboard (OSB), laminated veneer lumber (LVL), medium density fiber-boards (MDF), high density fiberboards (HDF), parquet flooring, curved plywood, veneered particleboards, veneered MDF or particle boards. The bonding resin is also useful for example in composites, molding compounds and foundry applications. The invention also relates to a method for preparing the bonding resin. The bonding resin comprises hydroxymethylfurfural, furfural, furfuryl alcohol, acetoxymethyl furfural or oligomer of hydroxymethylfurfural or a combination thereof and one or more crosslinker and optionally one or more additives.

IPC Classes  ?

  • C08G 16/02 - Condensation polymers of aldehydes or ketones with monomers not provided for in the groups of aldehydes
  • C04B 26/12 - Condensation polymers of aldehydes or ketones
  • C08K 7/14 - Glass
  • C08L 97/02 - Lignocellulosic material, e.g. wood, straw or bagasse
  • C09J 161/00 - Adhesives based on condensation polymers of aldehydes or ketonesAdhesives based on derivatives of such polymers

4.

PACKAGING BOX

      
Application Number IB2024059789
Publication Number 2025/083506
Status In Force
Filing Date 2024-10-07
Publication Date 2025-04-24
Owner STORA ENSO OYJ (Finland)
Inventor Wei, Honglong

Abstract

A packaging box comprises: a carrier for carrying a product and comprising: a housing part having a body at least partially encircled around a first axis, the body comprising a first side provided with a window and a second side facing the first side, a product housing space being formed between the first side and the second side; a panel having an inner panel corresponding to the first side and an outer panel corresponding to the second side; wherein the panel is formed by a single sheet and the inner panel and the outer panel are folded with respect to each other at their connecting edge, and wherein the inner panel comprises an inner cover adjacent to the connecting edge, a middle part connected to the inner cover, and a sliding part connected to the middle part, when the inner cover being moved between a closing position in which it at least partially covers the first side and an opening position in which the first side is shown, the sliding part being capable of sliding relative to the first side to open and close the window.

IPC Classes  ?

  • B65D 5/38 - Drawer-and-shell type containers
  • B65D 5/00 - Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
  • B65D 5/42 - Details of containers or of foldable or erectable container blanks
  • B65D 5/44 - Integral, inserted or attached portions forming internal or external fittings
  • B65D 5/52 - External stands or display elements for contents
  • B65D 25/00 - Details of other kinds or types of rigid or semi-rigid containers

5.

PURIFIED LIGNIN

      
Application Number IB2024059617
Publication Number 2025/074258
Status In Force
Filing Date 2024-10-02
Publication Date 2025-04-10
Owner STORA ENSO OYJ (Finland)
Inventor
  • Wadsborn, Rickard
  • Tolonen, Lasse
  • Jensen, Anna
  • Uhlin, Anders
  • Areskogh, Dimitri

Abstract

The present invention is directed to lignin having iron content below 5.0 ppm and a weight average molecular mass in the range of from 8200 to 15000 g/mol. The purified lignin can be further processed to end products such as carbon enriched materials.

IPC Classes  ?

  • C08L 97/00 - Compositions of lignin-containing materials
  • C07G 1/00 - Low-molecular-weight derivatives of lignin
  • C08H 8/00 - Macromolecular compounds derived from lignocellulosic materials

6.

POLYHYDROXYALKANOATE COATING METHOD

      
Application Number IB2024059395
Publication Number 2025/068931
Status In Force
Filing Date 2024-09-26
Publication Date 2025-04-03
Owner STORA ENSO OYJ (Finland)
Inventor
  • Knöös, Isabel
  • Nyflött, Åsa

Abstract

The present invention relates to a method for manufacturing a PHA (polyhydroxyalkanoate) coated fiber-based substrate, said method comprising the steps: a) providing a fiber-based substrate having a first main surface and a second 5 main surface and having a moisture content in the range of 4-10 wt%; b) forming a first PHA layer by applying a first aqueous coating composition comprising a first PHA having a melting point in the range of 120-180 °C on the first main surface and drying the first aqueous coating composition at a first drying temperature in the range of 90-130 °C and at least 20 °C below the melting point 10 of the first PHA.

IPC Classes  ?

  • D21H 19/28 - Polyesters
  • B32B 29/06 - Layered products essentially comprising paper or cardboard specially treated, e.g. surfaced, parchmentised
  • C09D 167/04 - Polyesters derived from hydroxy carboxylic acids, e.g. lactones
  • D21H 17/53 - PolyethersPolyesters
  • D21H 19/62 - Macromolecular organic compounds or oligomers thereof obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds

7.

A BLANK TO BE INSERTED IN A PACKAGE, A PACKAGE AND A METHOD FOR PROVIDING A PACKAGE

      
Application Number IB2024058553
Publication Number 2025/062222
Status In Force
Filing Date 2024-09-03
Publication Date 2025-03-27
Owner STORA ENSO OYJ (Finland)
Inventor
  • Malmqvist, Martin
  • Bergvall, Elisabeth

Abstract

The present disclosure relates to a blank to be inserted in a package for providing thermal insulation and/or shock-absorbing properties. The blank comprises a first set of panels being foldably interconnected and a second set of panels being foldably connected to preferably one of the panels, of the first set of panels. At least two of the panels of the first set of panels are foldably connected along a groove having a depth and a width. The depth of the groove is greater than the width such that, as a first panel is folded relative to a second panel a groove edge portion of the first major surface on the first panel extends into the groove and abuts a side wall of the groove formed on the second panel. The present disclosure also relates to a package having insulation and/or shock-absorbing properties and a method for providing a package.

IPC Classes  ?

  • B65D 81/38 - Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents with thermal insulation
  • B65D 81/127 - Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage maintaining contents at spaced relation from package walls, or from other contents using rigid or semi-rigid sheets of shock-absorbing material
  • B65D 81/24 - Adaptations for preventing deterioration or decay of contentsApplications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants

8.

METHOD FOR OBTAINING PURIFIED LIGNIN

      
Application Number IB2024058556
Publication Number 2025/062224
Status In Force
Filing Date 2024-09-03
Publication Date 2025-03-27
Owner STORA ENSO OYJ (Finland)
Inventor
  • Viikilä, Matti
  • Lönnemark, Lena
  • Shahzad, Adeel
  • Garoff, Niklas

Abstract

The present invention relates to a method for obtaining purified lignin, wherein the method comprises the steps of: providing black liquor; removing extractives from the black liquor; isolating lignin from the black liquor and dissolving the obtained isolated lignin in a lignin solvent so as to obtain a lignin solution. The method further comprises a step of removing additional extractives from the black liquor obtained prior to isolation of lignin, from the obtained isolated lignin and/or from the lignin solution, so as to obtain purified lignin.

IPC Classes  ?

  • D21C 11/00 - Regeneration of pulp liquors
  • C07G 1/00 - Low-molecular-weight derivatives of lignin
  • C08H 7/00 - LigninModified ligninHigh-molecular-weight products derived therefrom
  • C08L 97/02 - Lignocellulosic material, e.g. wood, straw or bagasse
  • D21C 11/04 - Regeneration of pulp liquors of alkali lye
  • C11B 13/00 - Recovery of fats, fatty oils or fatty acids from waste materials

9.

SURFACE-TREATED GAS BARRIER FILM

      
Application Number 18729241
Status Pending
Filing Date 2023-01-31
First Publication Date 2025-03-20
Owner Stora Enso OYJ (Finland)
Inventor
  • Backfolk, Kaj
  • Heiskanen, Isto
  • Lyytikäinen, Katja

Abstract

The present invention relates to a method for preparing a surface-treated gas barrier film, said method comprising the steps of: a) providing a gas barrier substrate comprising at least 50 wt % of a highly refined cellulose pulp based on dry weight; and b) surface treatment of the gas barrier substrate, wherein the surface treatment comprises treating a surface of the gas barrier substrate with a solution comprising an organic acid and sodium carbonate and drying the gas barrier substrate to obtain a surface-treated gas barrier film. The invention further relates to a surface-treated gas barrier film obtained according to the method and a packaging laminate comprising the surface-treated gas barrier film.

IPC Classes  ?

  • D21H 21/14 - Non-fibrous material added to the pulp, characterised by its function, form or propertiesPaper impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
  • B32B 29/00 - Layered products essentially comprising paper or cardboard
  • B32B 29/06 - Layered products essentially comprising paper or cardboard specially treated, e.g. surfaced, parchmentised
  • D21H 11/18 - Highly hydrated, swollen or fibrillatable fibres
  • D21H 19/12 - Coatings without pigments applied as a solution using water as the only solvent, e.g. in the presence of acid or alkaline compounds
  • D21H 27/10 - Packing paper

10.

A METHOD FOR MANUFACTURING A PAPER OR PAPERBOARD BASED PACKAGING LAMINATE

      
Application Number IB2024058552
Publication Number 2025/052243
Status In Force
Filing Date 2024-09-03
Publication Date 2025-03-13
Owner STORA ENSO OYJ (Finland)
Inventor
  • Backfolk, Kaj
  • Stenvall, Erik

Abstract

The present invention relates to a method for manufacturing a paper or paperboard based packaging laminate, said method comprising: a) providing a paper or paperboard base layer, b) providing a metallized barrier paper layer comprising a barrier paper substrate having a first main surface and a second main surface and a metallization layer having a thickness in the range of 10-500 nm deposited on the first main surface, c) subjecting the metallization layer to a surface treatment process selected from the group consisting of corona treatment and plasma treatment, such that the surface treated metallization layer has a surface energy in the range of 35-75 mN/m, as determined by ISO 19403-2:2017, d) applying a water based adhesive composition to the surface treated metallization layer and/or the paper or paperboard base layer, and e) laminating the paper or paperboard base layer to the surface treated metallization layer using the water based adhesive composition, such that the adhesive composition forms an adhesive tie layer between the paper or paperboard base layer and the metallization layer of the metallized barrier paper layer.

IPC Classes  ?

  • B32B 38/00 - Ancillary operations in connection with laminating processes
  • B32B 29/00 - Layered products essentially comprising paper or cardboard
  • B32B 37/12 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
  • B32B 37/24 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer not being coherent before laminating, e.g. made up from granular material sprinkled onto a substrate
  • C09J 5/02 - Adhesive processes in generalAdhesive processes not provided for elsewhere, e.g. relating to primers involving pretreatment of the surfaces to be joined
  • C23C 14/08 - Oxides
  • C23C 14/20 - Metallic material, boron or silicon on organic substrates
  • D21H 19/08 - Metal coatings applied as vapour, e.g. in vacuum
  • B32B 15/12 - Layered products essentially comprising metal comprising metal as the main or only constituent of a layer, next to another layer of a specific substance of paper or cardboard

11.

PREPARATION OF A FOAM COMPRISING DISCRETE UNITS OF FOAM EMBEDDED IN A FOAM MATRIX

      
Document Number 03243020
Status Pending
Filing Date 2022-12-22
Open to Public Date 2025-02-27
Owner STORA ENSO OYJ (Finland)
Inventor
  • Koklukaya, Oruc
  • Hult Torron, Daniel
  • Ghanadpour, Maryam
  • Sterner, Martin

Abstract

The present invention relates to a method for the preparation of a solid foam, wherein the method comprises depositing discrete units of a foam on a surface to obtain a first foam deposition, followed by depositing a wet foam between the discrete units to obtain a subsequent foam deposition, and drying the wet foam. The invention further relates to a solid foam comprising discrete units of foam embedded in a foam matrix.

IPC Classes  ?

  • A01G 24/27 - Pulp, e.g. bagasse
  • A01G 24/48 - Growth substratesCulture mediaApparatus or methods therefor characterised by their structure containing foam or presenting a foam structure
  • B29C 44/12 - Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
  • C08J 9/28 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof by elimination of a liquid phase from a macromolecular composition or article, e.g. drying of coagulum
  • C08J 9/30 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof by mixing gases into liquid compositions or plastisols, e.g. frothing with air
  • C08J 9/35 - Composite foams, i.e. continuous macromolecular foams containing discontinuous cellular particles or fragments
  • C08L 1/02 - CelluloseModified cellulose
  • D21H 21/24 - Surfactants
  • D21H 21/56 - Foam

12.

PREPARATION OF A FOAM COMPRISING DISCRETE UNITS OF FOAM EMBEDDED IN A FOAM MATRIX

      
Application Number 18722213
Status Pending
Filing Date 2022-12-22
First Publication Date 2025-02-27
Owner Stora Enso OYJ (Finland)
Inventor
  • Köklükaya, Oruç
  • Hult Torron, Daniel
  • Ghanadpour, Maryam
  • Sterner, Martin

Abstract

The present invention relates to a method for the preparation of a solid foam, wherein the method comprises depositing discrete units of a foam on a surface to obtain a first foam deposition, followed by depositing a wet foam between the discrete units to obtain a subsequent foam deposition, and drying the wet foam. The invention further relates to a solid foam comprising discrete units of foam embedded in a foam matrix.

IPC Classes  ?

  • D21J 7/00 - Manufacture of hollow articles from fibre suspensions or papier-mâché by deposition of fibres in or on a wire-net mould
  • D21F 11/00 - Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibreboard production, on paper-making machines
  • D21J 1/02 - Cutting, e.g. using wet saws
  • D21J 1/06 - Drying
  • D21J 1/08 - Impregnated or coated fibreboard

13.

METHOD FOR PRODUCING A GRANULAR CARBON-CARBON COMPOSITE FROM A LIGNIN-CARBON COMPOSITE

      
Application Number 18717639
Status Pending
Filing Date 2022-12-07
First Publication Date 2025-02-20
Owner Stora Enso OYJ (Finland)
Inventor
  • Olsson, Vilhelm
  • Walter, Stephan
  • Wachtler, Mario
  • Lindström, Mats

Abstract

The present invention is directed to a method for producing a thermally stabilized agglomerated lignin-carbon composite material. The method involves the steps of providing an agglomerated lignin-carbon composite material comprising lignin and at least one carbon additive; and heating the agglomerated lignin-carbon composite material to obtain the thermally stabilized agglomerated lignin-carbon composite material. The invention is also directed to a granular carbon-carbon composite material obtained by heat treatment of the thermally stabilized agglomerated lignin-carbon composite material.

IPC Classes  ?

  • H01M 4/36 - Selection of substances as active materials, active masses, active liquids
  • H01M 4/587 - Carbonaceous material, e.g. graphite-intercalation compounds or CFx for inserting or intercalating light metals

14.

STRENGTH ENHANCEMENT AGENT FOR PAPER AND PAPERBOARD

      
Application Number 18717641
Status Pending
Filing Date 2022-12-12
First Publication Date 2025-02-20
Owner Stora Enso OYJ (Finland)
Inventor
  • Backfolk, Kaj
  • Heiskanen, Isto
  • Moberg, Anders
  • Lyytikäinen, Katja
  • Land Hensdal, Cecilia
  • Kauppi, Anna

Abstract

The present invention relates to a strength enhancement agent for paper and paperboard, said strength enhancement agent comprising a fines-depleted highly refined cellulose pulp (FD-HIRC), wherein said FD-HIRC has a Schopper-Riegler (SR) number in the range of 60-100 as determined by standard ISO 5267-1, and wherein said FD-HRC has an amount of long (>0.2 mm) fibers of at least 8 million fibers per gram (based on dry weight), and wherein said FD-HRC has a Fines A value below 46, wherein the Fines A value is determined using an FS5 optical fiber analyzer. The present invention relates to a method for manufacturing said strength enhancement agent.

IPC Classes  ?

  • D21H 21/18 - Reinforcing agents
  • D21D 1/20 - Methods of refining
  • D21H 11/02 - Chemical or chemomechanical pulp
  • D21H 11/18 - Highly hydrated, swollen or fibrillatable fibres
  • D21H 15/06 - Long fibres, i.e. fibres exceeding the upper length limit of conventional paper-making fibresFilaments

15.

CELLULOSE-BASED GAS BARRIER FILM

      
Application Number 18717642
Status Pending
Filing Date 2022-12-12
First Publication Date 2025-02-20
Owner Stora Enso OYJ (Finland)
Inventor
  • Heiskanen, Isto
  • Backfolk, Kaj
  • Kauppi, Anna
  • Lyytikäinen, Katja
  • Land Hensdal, Cecilia
  • Moberg, Anders

Abstract

The present invention relates to a cellulose-based gas barrier film, said cellulose-based gas barrier film comprising at least 50 wt % of a fines-depleted highly refined cellulose pulp (FD-HRC), wherein said FD-HRC has a Schopper-Riegler (SR) number in the range of 80-100 as determined by standard ISO 5267-1, wherein said FD-HIRC has an amount of long (>0.2 mm) fibers of at least 8 million fibers per gram (based on dry weight), and wherein said FD-HRC has a Fines A value below 46%, wherein the Fines A value is determined using an FS5 optical fiber analyzer. The present invention relates to a method for manufacturing said cellulose-based gas barrier film.

IPC Classes  ?

  • D21H 11/18 - Highly hydrated, swollen or fibrillatable fibres
  • B32B 29/00 - Layered products essentially comprising paper or cardboard
  • B65D 65/40 - Applications of laminates for particular packaging purposes
  • D21H 27/10 - Packing paper

16.

PROCESS FOR THE PREPARATION OF A BONDING RESIN

      
Application Number 18717644
Status Pending
Filing Date 2022-12-19
First Publication Date 2025-02-13
Owner Stora Enso OYJ (Finland)
Inventor
  • Zafar, Ashar
  • Almqvist, David
  • Areskogh, Dimitri
  • Pham, Huynh Tram Anh

Abstract

The present invention relates to a bonding resin useful for example in the manufacture of laminates, mineral wool insulation and wood products such as plywood, oriented strandboard (OSB), laminated veneer lumber (LVL), medium density fiber-boards (MDF), high density fiberboards (HDF), parquet flooring, curved plywood, veneered particleboards, veneered MDF or particle boards. The bonding resin is also useful for example in composites, molding compounds and foundry applications. The invention also relates to a method for preparing the bonding resin. The bonding resin comprises an aqueous solution comprising lignin and/or tannin and ammonia and/or an organic base and hydroxymethylfurfural, furfural, furfuryl alcohol, acetoxy methyl furfural or an oligomer of hydroxy methylfurfural or a combination thereof and optionally one or more crosslinker and optionally one or more additives.

IPC Classes  ?

  • C09J 197/00 - Adhesives based on lignin-containing materials
  • B32B 5/02 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments
  • B32B 21/02 - Layered products essentially comprising wood, e.g. wood board, veneer, wood particle board in the form of fibres, chips, or particles
  • C09J 5/00 - Adhesive processes in generalAdhesive processes not provided for elsewhere, e.g. relating to primers
  • C09J 11/04 - Non-macromolecular additives inorganic

17.

A METHOD FOR MANUFACTURING A CELLULOSE PULP COMPOSITION FOR A MOLDABLE CELLULOSE FIBER-BASED WEB

      
Application Number IB2024056646
Publication Number 2025/032396
Status In Force
Filing Date 2024-07-08
Publication Date 2025-02-13
Owner STORA ENSO OYJ (Finland)
Inventor
  • Heiskanen, Isto
  • Lammi, Titta
  • Räsänen, Jari
  • Karhu, Teemu
  • Miikki, Nina

Abstract

The present invention relates to a method for manufacturing a cellulose pulp composition for a moldable cellulose fiber-based web, said method comprising: a) providing a cellulose pulp composition comprising at least 50 wt% chemical or semi-chemical wood pulp based on dry weight, b) subjecting the cellulose pulp composition provided in step a) to low consistency (LC) refining at a consistency in the range of 1-7 wt% to an SR value in the range of 18-50 as determined by standard ISO 5267-1, c) subjecting the LC-refined cellulose pulp composition obtained in step b) to high consistency (HC) refining at a consistency in the range of 12-40 wt% with a refining energy of at least 150 kWh/t, and d) diluting the HC-refined cellulose pulp composition obtained in step c) to a consistency in the range of 0.1-10 wt%. The invention further relates to a method for manufacturing a moldable cellulose fiber-based web and a method for manufacturing a molded cellulose fiber-based product.

IPC Classes  ?

  • D21D 1/00 - Methods of beating or refiningBeaters of the Hollander type
  • B29C 51/08 - Deep-drawing or matched-mould forming, i.e. using mechanical means only
  • D21C 9/00 - After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters
  • D21D 1/20 - Methods of refining
  • D21H 11/02 - Chemical or chemomechanical pulp
  • D21H 11/16 - Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only modified by a particular after-treatment
  • D21H 11/18 - Highly hydrated, swollen or fibrillatable fibres
  • D21H 17/02 - Material of vegetable origin

18.

HIGHLY REFINED PULP FROM FIBERS OBTAINED FROM USED BEVERAGE CARTONS

      
Application Number 18705099
Status Pending
Filing Date 2022-10-25
First Publication Date 2025-02-06
Owner Stora Enso OYJ (Finland)
Inventor
  • Ljungqvist, Carl-Henrik
  • Heiskanen, Isto
  • Backfolk, Kaj

Abstract

The present invention relates to a method for manufacturing a highly refined cellulose composition, comprising: i) providing a fiber fraction comprising 20-100 wt % fibers obtained from used beverage cartons (UBC) based on the total dry fiber weight of the fiber fraction, ii) optionally subjecting the fiber fraction to mechanical, chemical or enzymatic pre-treatment, or a combination thereof, iii) subjecting the optionally pre-treated fiber fraction to refining at a consistency in the range of 0.5-30% by weight to a Schopper-Riegler (SR) in the range of 50-100, as determined by standard ISO 5267-1, to obtain the highly refined cellulose composition.

IPC Classes  ?

  • D21H 11/14 - Secondary fibres
  • D21B 1/02 - Pretreatment of the raw materials by physical or chemical means
  • D21C 1/06 - Pretreatment of the finely-divided materials before digesting with alkaline reacting compounds
  • D21C 5/00 - Other processes for obtaining cellulose, e.g. cooking cotton linters

19.

METHOD FOR PRODUCING A GRANULAR CARBON-SILICON COMPOSITE FROM A LIGNIN-SILICON COMPOSITE

      
Application Number 18717640
Status Pending
Filing Date 2022-12-07
First Publication Date 2025-02-06
Owner Stora Enso OYJ (Finland)
Inventor
  • Olsson, Vilhelm
  • Walter, Stephan
  • Wachtler, Mario

Abstract

The present invention is directed to a method for producing an agglomerated lignin-silicon composite material. The method involves the steps of mixing lignin in powder form, at least one silicon-containing active material in powder form and optionally at least one additive; compacting the mixture; and crushing the compacted composite material to obtain an agglomerated lignin-silicon composite material. The invention is also directed to a granular carbon-silicon composite material obtained by heat treatment of the agglomerated lignin-silicon composite material.

IPC Classes  ?

  • H01M 4/587 - Carbonaceous material, e.g. graphite-intercalation compounds or CFx for inserting or intercalating light metals
  • C04B 35/524 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxides based on carbon, e.g. graphite obtained from polymer precursors, e.g. glass-like carbon material
  • C04B 35/626 - Preparing or treating the powders individually or as batches
  • C04B 35/636 - Polysaccharides or derivatives thereof
  • C04B 35/64 - Burning or sintering processes

20.

A PACKAGING MATERIAL COMPRISING A POLYMER COATING

      
Application Number 18713880
Status Pending
Filing Date 2022-11-28
First Publication Date 2025-01-23
Owner Stora Enso OYJ (Finland)
Inventor
  • Nevalainen, Kimmo
  • Perttu-Ukonaho, Inkeri
  • Suikkanen, Esa
  • Vuorimaa, Minna
  • Lankinen, Timo
  • Veijalainen, Anna

Abstract

The present invention relates to a packaging material comprising a paperboard substrate comprising a first and a second side, an extrusion coated polymer layer attached to the first side, which polymer layer comprises polyethylene (PE) with a melt index in the range of 7-10 g/10 min, as measured using ASTM D1238, wherein the polymer layer has a grammage of less than 12 gsm, preferably less than 10 gsm. The invention further relates to a method of producing such a packaging material and a cup being made from or comprising said packaging material.

IPC Classes  ?

  • B32B 21/08 - Layered products essentially comprising wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, next to another layer of a specific substance of synthetic resinLayered products essentially comprising wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, next to another layer of a specific substance of fibre-reinforced resin
  • B29C 48/00 - Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired formApparatus therefor
  • B29C 48/153 - Coating both inner and outer surfaces
  • B29C 48/21 - Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
  • B29K 23/00 - Use of polyalkenes as moulding material
  • B29L 31/00 - Other particular articles
  • B32B 37/15 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state

21.

MULTIPLY PAPERBOARD COMPRISING PRESSURE GROUNDWOOD PULP AND ITS METHOD OF MANUFACTURING

      
Application Number IB2024056458
Publication Number 2025/012745
Status In Force
Filing Date 2024-07-02
Publication Date 2025-01-16
Owner STORA ENSO OYJ (Finland)
Inventor
  • Peng, Frank
  • Heiskanen, Isto
  • Moberg, Anders

Abstract

The invention discloses a paperboard comprising at least three plies: a first ply forming a top ply, a second ply forming at least one middle ply and a third ply forming a back ply, wherein the second ply is formed from a middle ply furnish comprising at least 50 % by weight of pressure groundwood (PGW) pulp, 0.1 - 1 % by weight of carboxymethyl cellulose (CMC) and 0.1 - 5 % by weight of cationic starch. The PGW pulp has a Freeness of at least 390 ml and comprises less than 17 % dry weight of a fine fraction that is able to pass through a 200 mesh screen.

IPC Classes  ?

  • D21H 27/38 - Multi-ply at least one of the sheets having a fibrous composition differing from that of other sheets
  • B32B 29/00 - Layered products essentially comprising paper or cardboard
  • D21H 11/08 - Mechanical or thermomechanical pulp
  • D21H 17/26 - Ethers thereof
  • D21H 17/29 - Starch cationic
  • C08B 15/08 - Fractionation of cellulose, e.g. separation of cellulose crystallites
  • D21H 11/10 - Mixtures of chemical and mechanical pulp
  • D21H 21/18 - Reinforcing agents

22.

BARRIER LAMINATE FOR PACKAGING MATERIAL

      
Application Number 18710087
Status Pending
Filing Date 2022-11-10
First Publication Date 2025-01-16
Owner Stora Enso OYJ (Finland)
Inventor Ovaska, Sami-Seppo

Abstract

The present invention relates to a barrier laminate comprising: a first cellulose substrate comprising highly refined cellulose fibers; a tie layer comprising a hot melt adhesive and a second cellulose substrate wherein the peeling strength between the second substrate and the tie layer is between 3-5 N. The present invention also relates to a method for manufacturing said barrier laminate.

IPC Classes  ?

  • B32B 29/00 - Layered products essentially comprising paper or cardboard
  • B32B 7/12 - Interconnection of layers using interposed adhesives or interposed materials with bonding properties
  • B32B 37/12 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives

23.

A METHOD FOR MANUFACTURING A PURIFIED FIBER FRACTION FROM USED BEVERAGE CARTON

      
Application Number 18705088
Status Pending
Filing Date 2022-10-25
First Publication Date 2025-01-09
Owner Stora Enso OYJ (Finland)
Inventor
  • Ljungqvist, Carl-Henrik
  • Tollnerius, Lena
  • Backfolk, Kaj

Abstract

The present invention relates to a method for manufacturing a purified fiber fraction from used beverage carton (UBC), said method comprising the steps: a) subjecting UBC starting material to a polymer and aluminum film separation method to obtain a UBC polymer and aluminum fraction and a raw UBC fiber fraction; b) optionally subjecting the raw UBC fiber fraction to a coarse screening method to remove coarse particles; c) subjecting the raw UBC fiber fraction to a fine screening method to remove cellulose fines and fine particulate contaminants, wherein the fine screening method comprises at least one fine screening step and at least one washing step; d) optionally subjecting the fine screened UBC fiber fraction to a washing method to remove further contaminants; e) optionally subjecting the fine screened UBC fiber fraction to a bleaching method; f) subjecting the fine screened, and optionally bleached, UBC fiber fraction to a dewatering method to a consistency of at least wt %; and g) subjecting the dewatered UBC fiber fraction to deactivation to obtain a purified 20 UBC fiber fraction.

IPC Classes  ?

  • D21D 5/02 - Straining or screening the pulp

24.

A METHOD FOR PRODUCING A MICROFIBRILLATED CELLULOSE WEB

      
Application Number IB2024055703
Publication Number 2025/008693
Status In Force
Filing Date 2024-06-11
Publication Date 2025-01-09
Owner STORA ENSO OYJ (Finland)
Inventor
  • Nylén, Otto
  • Karppinen, Anni
  • Backfolk, Kaj

Abstract

The present invention relates to a method for producing a microfibrillated cellulose (MFC) web. The method comprises preparing an MFC suspension and forming a wet MFC web from the MFC suspension by casting on a non-porous support. The wet MFC web positioned on the non-porous support is subjected to water removal by means of dewatering and/or drying to form a dry MFC web. Broke material is discharged and collected. Collected broke material is mixed with water to provide at least one broke suspension wherein at least 90 weight- % of each broke suspension passes a Mesh 30 screen according to SCAN-CM 66:05. The broke suspension(s) is/are subjected to a mechanical treatment. The broke suspension(s) is/are used in the preparation of the MFC suspension. The mechanical treatment is performed to increase the viscosity of the broke suspension(s) to at least 60% of the viscosity of the MFC suspension without the broke suspension(s).

IPC Classes  ?

  • D21F 1/66 - Pulp catching, de-watering, or recoveringRe-use of pulp-water
  • C08B 15/02 - OxycelluloseHydrocelluloseCellulose hydrate
  • C08B 15/08 - Fractionation of cellulose, e.g. separation of cellulose crystallites
  • C08L 1/02 - CelluloseModified cellulose
  • D21F 3/02 - Wet presses
  • D21H 11/14 - Secondary fibres
  • D21H 11/18 - Highly hydrated, swollen or fibrillatable fibres

25.

A METHOD FOR MANUFACTURING A MULTI-PLY PAPERBOARD

      
Application Number IB2024056456
Publication Number 2025/008746
Status In Force
Filing Date 2024-07-02
Publication Date 2025-01-09
Owner STORA ENSO OYJ (Finland)
Inventor
  • Backfolk, Kaj
  • Moberg, Anders

Abstract

The invention discloses a method for manufacturing a multiply paperboard comprising the steps of: - forming a web comprising at least a top ply, a back ply, and a middle ply arranged between the top ply and the back ply, wherein the middle ply is formed from a first furnish comprising at least 50 wt% of a HT-CTMP and 0.1 – 10 wt% of glue pulp based on the total dry weight of said first furnish, wherein said glue pulp has a Schopper Riegler (SR) value in the range of 55- 84 as measured according to standard ISO 5267-1 and a mass fraction of fines of less than 25% as measured according to standard ISO 10376:2011, - subjecting the thereof formed three-ply web to pressing in at least one shoe press, and - drying the web. It has been found that the combination of using the said furnish mixture including HT-CTMP and glue pulp with an SR value within said range enables efficient dewatering by use of a shoe press and gives rise to a paperboard with high bulk but maintained or improved strength properties.

IPC Classes  ?

  • D21H 27/38 - Multi-ply at least one of the sheets having a fibrous composition differing from that of other sheets
  • B32B 29/00 - Layered products essentially comprising paper or cardboard
  • D21F 3/02 - Wet presses
  • D21H 11/08 - Mechanical or thermomechanical pulp
  • D21H 11/18 - Highly hydrated, swollen or fibrillatable fibres
  • D21H 11/00 - Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
  • D21H 11/10 - Mixtures of chemical and mechanical pulp
  • D21H 21/18 - Reinforcing agents

26.

BINDER COMPRISING MODIFIED LIGNIN

      
Application Number IB2024056537
Publication Number 2025/008782
Status In Force
Filing Date 2024-07-04
Publication Date 2025-01-09
Owner STORA ENSO OYJ (Finland)
Inventor
  • Ekström, Jesper
  • Areskogh, Dimitri

Abstract

The present invention is directed to a process for preparing a binder, wherein lignin is subjected to demethylation whereby methoxy groups of lignin are converted to hydroxy groups. The demethylated lignin is mixed with a cross-linker and heated. The invention is also directed a binder obtained according to the process and to the use thereof.

IPC Classes  ?

  • C09J 197/00 - Adhesives based on lignin-containing materials
  • C08H 8/00 - Macromolecular compounds derived from lignocellulosic materials
  • C08L 97/00 - Compositions of lignin-containing materials
  • C07B 41/02 - Formation or introduction of functional groups containing oxygen of hydroxy or O-metal groups

27.

A BIODEGRADABLE LAMINATE FOR ASEPTIC PACKAGING

      
Application Number IB2024056396
Publication Number 2025/008733
Status In Force
Filing Date 2024-07-01
Publication Date 2025-01-09
Owner STORA ENSO OYJ (Finland)
Inventor
  • Cunha, Gisela
  • Backfolk, Kaj
  • Nyflött, Åsa

Abstract

A biodegradable laminate (1) comprising a base board (2) with a first side (2a) and a second side (2b). The base board comprises 0-30 wt% filler, the laminate further comprises a PHA, dispersion coated, primer layer (3) arranged on the second side of the base board, wherein the primer layer has a coat weight of 0.5-15 g/m2, the primer layer comprises a PHA type selected from the group consisting of PHB, PHBV, PHBH, P(3HB4HB), other co-polymers of PHB, other homopolymers such as PHO, PHH, P3HP, and combinations thereof; a vacuum deposited layer (4) coated on the primer layer which vacuum deposited layer has a thickness of 20-500 nm, the vacuum deposited layer comprises material selected from the group consisting of aluminum, magnesium, silicon, copper, aluminum oxides, magnesium oxides, silicon oxides and combinations thereof; and at least one extrusion coated heat-sealable PHA layer (5, 6) which is coated on the first side of the base board and/or on the vacuum deposited layer.

IPC Classes  ?

  • B32B 29/00 - Layered products essentially comprising paper or cardboard
  • B32B 27/10 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of paper or cardboard
  • B32B 27/36 - Layered products essentially comprising synthetic resin comprising polyesters
  • B65D 65/40 - Applications of laminates for particular packaging purposes
  • D21H 19/00 - Coated paperCoating material
  • D21H 27/10 - Packing paper

28.

A METHOD FOR PRODUCING A MICROFIBRILLATED CELLULOSE WEB

      
Application Number IB2024055701
Publication Number 2025/003814
Status In Force
Filing Date 2024-06-11
Publication Date 2025-01-02
Owner STORA ENSO OYJ (Finland)
Inventor
  • Nylén, Otto
  • Karppinen, Anni
  • Backfolk, Kaj

Abstract

The present invention relates to a method for producing a microfibrillated cellulose (MFC) web. The method comprises providing an MFC suspension (2) comprising water as suspension medium. A wet MFC web (4) is formed of the MFC suspension by casting on a non-porous support (5). The wet MFC web (4) positioned on the non- porous support (5) is subjected to water removal by means of press dewatering and/or non-contact drying to form a dry MFC web (8). The water removal further comprises at least one induction heating step, wherein each induction heating step comprises heating said wet MFC web (4) by means of an induction heated device (10). The dry MFC web (8) is separated from the non-porous support (5).

IPC Classes  ?

  • D21F 5/00 - Dryer section of machines for making continuous webs of paper
  • C08B 15/02 - OxycelluloseHydrocelluloseCellulose hydrate
  • C08B 15/08 - Fractionation of cellulose, e.g. separation of cellulose crystallites
  • D21F 3/02 - Wet presses
  • D21H 11/18 - Highly hydrated, swollen or fibrillatable fibres
  • H05B 6/02 - Induction heating

29.

PHA MULTILAYER EXTRUSION COATING

      
Application Number IB2024055705
Publication Number 2025/003815
Status In Force
Filing Date 2024-06-11
Publication Date 2025-01-02
Owner STORA ENSO OYJ (Finland)
Inventor
  • Cunha, Gisela
  • Shokri, Ebrahim
  • Backfolk, Kaj
  • Nyflött, Åsa

Abstract

A multilayer coated laminate (1) comprising a substrate (2) with a first side (2a) and a second side (2b). The laminate further comprises a co-extrusion coated tie 5 layer (3) which is coated on first side (2a) of the substrate, wherein the tie layer comprising PVAc and/or PBSA, which tie layer has a thickness of 1-10 µm, preferably 2-7 µm; and a PHA layer (4), preferably PHBH, which is co-extrusion coated on the tie layer, the PHA 10 layer has a thickness of 5-25 µm, preferably 10-15 µm.

IPC Classes  ?

  • B32B 27/36 - Layered products essentially comprising synthetic resin comprising polyesters
  • B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind
  • B32B 27/10 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of paper or cardboard
  • B32B 29/00 - Layered products essentially comprising paper or cardboard
  • D21H 19/82 - Paper comprising more than one coating superposed

30.

A METHOD FOR PRODUCING A MICROFIBRILLATED CELLULOSE WEB

      
Application Number IB2024055839
Publication Number 2025/003819
Status In Force
Filing Date 2024-06-14
Publication Date 2025-01-02
Owner STORA ENSO OYJ (Finland)
Inventor
  • Nylén, Otto
  • Karppinen, Anni
  • Backfolk, Kaj

Abstract

The present invention relates to a method for producing a microfibrillated cellulose (MFC) web. The method comprises preparing an MFC suspension comprising water as suspension medium. A wet MFC web is formed of the MFC suspension by casting on a non-porous support or on a paper or paperboard substrate positioned on the non-porous support. The wet MFC web formed on the non-porous support or on a paper or paperboard substrate positioned on the non-porous support is subjected to water removal by means of dewatering and/or drying to form the MFC web. Water removed from the wet MFC web by the water removal is collected into at least one water fraction. Optionally, the at least one water fraction is subjected to a purification treatment. The at least one water fraction is used as suspension medium in the preparation of the MFC suspension.

IPC Classes  ?

  • D21H 11/18 - Highly hydrated, swollen or fibrillatable fibres
  • D21F 1/66 - Pulp catching, de-watering, or recoveringRe-use of pulp-water
  • D21F 3/00 - Press section of machines for making continuous webs of paper
  • D21F 5/00 - Dryer section of machines for making continuous webs of paper
  • D21F 9/00 - Complete machines for making continuous webs of paper

31.

PROCESS FOR PRODUCING DENSIFIED WOOD PRODUCT

      
Application Number IB2024056184
Publication Number 2025/003893
Status In Force
Filing Date 2024-06-26
Publication Date 2025-01-02
Owner STORA ENSO OYJ (Finland)
Inventor
  • Kavakka, Jari
  • Kahelin, Jukka

Abstract

The present invention is directed to a process for preparing a delignified and densified wood product. The wood is delignified in the form of veneers, using process conditions corresponding to the Kraft process. The wood veneers are subjected to a pre-hydrolysis treatment before the process steps corresponding to the Kraft process. The present invention also relates to a delignified and densified wood product produced using said process. The delignified and densified wood product according to the present invention has particularly advantageous strength properties.

IPC Classes  ?

  • B27K 5/00 - Staining or dyeing woodBleaching woodTreating of wood not provided for in groups or
  • B27K 3/16 - Inorganic impregnating agents
  • B27K 5/06 - Softening or hardening wood
  • D21C 1/02 - Pretreatment of the finely-divided materials before digesting with water or steam
  • D21C 1/04 - Pretreatment of the finely-divided materials before digesting with acid reacting compounds
  • D21C 3/02 - Pulping cellulose-containing materials with inorganic bases or alkaline reacting compounds, e.g. sulfate processes

32.

METHOD FOR MANUFACTURING A MULTIPLY PAPERBOARD, AND A MULTIPLY PAPERBOARD

      
Application Number 18701000
Status Pending
Filing Date 2022-10-12
First Publication Date 2024-12-26
Owner Stora Enso OYJ (Finland)
Inventor Valkamo, Pasi

Abstract

The present invention relates to a method for manufacturing a multiply paperboard, comprising forming a first web on a first wire, a second web on a second wire and a third web on a third wire. The second web comprises a delamination web layer formed from a second pulp suspension comprising 5-80 weight-% refined CTMP and/or CMP. A first coating layer comprising 0.2-20 g/m2 starch is applied to a non-wire side of the first web by curtain application. A second coating layer comprising 0.2-20 g/m2 starch is applied to a non-wire side of the second web or the third web by curtain application. A multilayer web is formed by joining the third web with the second web via the second bonding layer and by joining the second web and the first web via the first bonding layer. The multilayer web is further dewatered and optionally dried to form the multiply paperboard. The invention relates also to a multiply paperboard.

IPC Classes  ?

  • D21H 27/34 - Continuous materials, e.g. filaments, sheets or nets
  • D21F 11/04 - Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibreboard production, on paper-making machines of the Fourdrinier type paper or board consisting of two or more layers
  • D21H 11/02 - Chemical or chemomechanical pulp
  • D21H 21/16 - Sizing or water-repelling agents
  • D21H 23/24 - Addition to the formed paper during paper manufacture
  • D21H 23/48 - Curtain coaters
  • D21H 27/10 - Packing paper
  • D21H 27/38 - Multi-ply at least one of the sheets having a fibrous composition differing from that of other sheets

33.

METHOD FOR PRODUCING A SOLID CELLULOSE FOAM

      
Application Number IB2024055700
Publication Number 2024/261592
Status In Force
Filing Date 2024-06-11
Publication Date 2024-12-26
Owner STORA ENSO OYJ (Finland)
Inventor
  • Dobrzynska, Katarzyna
  • Köklükaya, Oruç

Abstract

The present invention relates to a method for producing a solid cellulose foam the method comprises the steps of: providing a wet cellulose foam; depositing the wet cellulose foam on a supporting surface to obtain a wet cellulose foam deposition; subjecting the wet cellulose foam deposition to an initial drying step so as to form partially dried cellulose foam sections, wherein the initial drying is carried out by means of heat transferring spikes extending at least partially through the wet cellulose foam from a first surface towards a second surface, and wherein the partially dried cellulose foam sections are formed adjacent to the heat transferring spikes; subjecting the wet cellulose foam deposition to a final drying step so as to obtain a solid cellulose foam, wherein the partially dried cellulose foam sections provide support for the wet cellulose foam during the final drying step; removing the heat transferring spikes so as to obtain a solid cellulose foam comprising cavities extending at least partially through the solid cellulose foam, wherein the cavities are formed by the heat transferring spikes.

IPC Classes  ?

  • D21H 21/56 - Foam
  • B65D 81/02 - Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage
  • C08J 9/28 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof by elimination of a liquid phase from a macromolecular composition or article, e.g. drying of coagulum
  • C08J 9/30 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof by mixing gases into liquid compositions or plastisols, e.g. frothing with air
  • C08L 1/02 - CelluloseModified cellulose
  • D21H 21/24 - Surfactants
  • F26B 3/00 - Drying solid materials or objects by processes involving the application of heat

34.

PROCESS FOR PRODUCING A BINDER FOR AN ASPHALT COMPOSITION

      
Application Number 18701004
Status Pending
Filing Date 2022-11-08
First Publication Date 2024-12-26
Owner Stora Enso OYJ (Finland)
Inventor
  • Lotti, Heikki
  • Ekström, Jesper
  • Areskogh, Dimitri

Abstract

The present invention is directed to a process for preparing a binder for an asphalt composition. The binder comprises lignin, a renewable and bio-based material, which replaces part of the fossil-based bitumen.

IPC Classes  ?

  • C08L 95/00 - Compositions of bituminous materials, e.g. asphalt, tar or pitch
  • C08H 7/00 - LigninModified ligninHigh-molecular-weight products derived therefrom

35.

FOOD OR LIQUID PACKAGING LAMINATE COMPRISING FIBERS OBTAINED FROM USED BEVERAGE CARTONS (UBC)

      
Application Number 18705095
Status Pending
Filing Date 2022-10-25
First Publication Date 2024-12-19
Owner Stora Enso OYJ (Finland)
Inventor
  • Ljungqvist, Carl-Henrik
  • Backfolk, Kaj

Abstract

The present invention relates to food or liquid packaging laminate comprising fibers obtained from used beverage cartons (UBC), said food or liquid packaging laminate comprising: a paperboard layer, and a barrier layer, wherein said paperboard layer comprises no or substantially no fibers obtained from UBC, wherein said barrier layer comprises a substrate layer comprising a highly refined cellulose composition comprising fibers obtained from UBC, and a polymeric gas barrier coating disposed on at least one side of the substrate layer, and wherein said barrier layer is laminated to said paperboard layer by a polymeric sealing layer arranged between said paperboard layer and said barrier layer.

IPC Classes  ?

  • B32B 29/06 - Layered products essentially comprising paper or cardboard specially treated, e.g. surfaced, parchmentised
  • B32B 7/12 - Interconnection of layers using interposed adhesives or interposed materials with bonding properties
  • B32B 29/02 - Layered products essentially comprising paper or cardboard next to a fibrous or filamentary layer
  • B32B 37/12 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives

36.

A METHOD FOR PRODUCING A PACKAGING INSERT FOR A PRODUCT, A SYSTEM FOR PRODUCING A PACKAGING INSERT FOR A PRODUCT AND A PACKAGING INSERT FOR A PRODUCT

      
Application Number IB2024055480
Publication Number 2024/256917
Status In Force
Filing Date 2024-06-05
Publication Date 2024-12-19
Owner STORA ENSO OYJ (Finland)
Inventor Broszat, Julia

Abstract

A packaging insert (30) for a product (50) is produced by generating at least one imprint (15) in an unbonded air-laid web (10) made from natural fibers and a thermoplastic polymer binder. The unbonded air-laid web (10) is heated to at least partly melt the thermoplastic polymer binder and bind the natural fibers to form a bonded air-laid blank (20) conserving the at least one imprint (25). The packaging insert (30) is formed by cutting the bonded air-laid blank (20) following heating or by the unbonded air-laid web (10) prior to heating and comprises an imprint (35) configured to accommodate at least a portion of the product (50). The packaging insert (30) has excellent shock absorbing and insulation properties.

IPC Classes  ?

  • D04H 1/732 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged by fluid current, e.g. air-lay
  • B32B 5/14 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by a layer differing constitutionally or physically in different parts, e.g. denser near its faces
  • B65D 81/00 - Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
  • D04H 1/26 - Wood pulp

37.

A METHOD FOR PRODUCING A CARBON ENRICHED MATERIAL FROM LIGNIN

      
Application Number IB2024055248
Publication Number 2024/252231
Status In Force
Filing Date 2024-05-30
Publication Date 2024-12-12
Owner STORA ENSO OYJ (Finland)
Inventor
  • Walter, Stephan
  • Olsson, Vilhelm
  • Lindström, Mats

Abstract

The present invention relates to a method for producing a carbon enriched material, said method comprising the steps of: a) providing lignin; b) mixing the lignin with a recirculated carbon enriched material fraction to obtain a lignin-carbon mixture; c) forming an agglomerated lignin-carbon composite material comprising lignin, the recirculated carbon enriched material fraction and optionally at least one additive; d) subjecting the agglomerated lignin-carbon composite material to heat treatment at one or more temperatures in the range of from 300 to 1500°C, wherein the heat treatment is carried out for a total time in the range of from 30 minutes to 10 hours, so as to obtain a carbon enriched material; e) milling the obtained carbon enriched material to so as to reduce the average particle size of the carbon enriched material, and to obtain at least a first fraction of a carbon enriched material, and a second fraction of a carbon enriched material; and f) recirculating at least a part of the first fraction obtained in step e) to step b).

IPC Classes  ?

  • C01B 32/05 - Preparation or purification of carbon not covered by groups , , ,
  • C01B 32/312 - Preparation
  • C07G 1/00 - Low-molecular-weight derivatives of lignin
  • C08H 7/00 - LigninModified ligninHigh-molecular-weight products derived therefrom
  • H01M 4/133 - Electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx
  • H01M 4/583 - Carbonaceous material, e.g. graphite-intercalation compounds or CFx

38.

METHOD FOR PRODUCING A CARBON ENRICHED MATERIAL FROM HEAT TREATED LIGNIN

      
Application Number IB2024055251
Publication Number 2024/252233
Status In Force
Filing Date 2024-05-30
Publication Date 2024-12-12
Owner STORA ENSO OYJ (Finland)
Inventor
  • Wachtler, Mario
  • Olsson, Vilhelm
  • Shetty, Abhishek

Abstract

The present invention relates to a method for producing completely thermally stabilized agglomerated lignin, the method comprising the steps of a) providing agglomerated lignin having an average particle size in the range of from 50 to 500 µm; and b) heating the agglomerated lignin to a temperature in the range of from 140 to 300°C for a time period of at least 30 minutes, so as to obtain completely thermally stabilized agglomerated lignin. The present invention also relates to completely thermally stabilized agglomerated lignin and a method for producing a carbon enriched material obtained by subjecting the completely thermally stabilized agglomerated lignin to heat treatment.

IPC Classes  ?

  • C08H 7/00 - LigninModified ligninHigh-molecular-weight products derived therefrom
  • B29B 9/08 - Making granules by agglomerating smaller particles
  • B29B 13/02 - Conditioning or physical treatment of the material to be shaped by heating
  • C01B 32/05 - Preparation or purification of carbon not covered by groups , , ,
  • C01B 32/312 - Preparation
  • C07G 1/00 - Low-molecular-weight derivatives of lignin

39.

A METHOD AND A SYSTEM FOR PRODUCING MICROFIBRILLATED CELLULOSE

      
Application Number IB2024055201
Publication Number 2024/246762
Status In Force
Filing Date 2024-05-29
Publication Date 2024-12-05
Owner STORA ENSO OYJ (Finland)
Inventor
  • Karppinen, Anni
  • Suhonen, Mikko
  • Backfolk, Kaj

Abstract

The present document discloses a method and a system for producing MFC. The method according to the invention comprises the following steps: a) providing a pulp suspension comprising cellulose fibers to a buffer tank (2) wherein the temperature of said pulp suspension is controlled and adjusted for optimized enzymatic function, preferably ≥20°C b) transferring the pulp suspension to a refining unit (3) and refining said pulp to obtain a pre-refined pulp suspension, wherein a hydrolysing agent in the form of an enzyme is added to the pulp suspension before and/or after pre-refining; c) feeding said pre-refined and temperature-regulated pulp suspension to a reactor tank (4, 4'); d) hydrolyzing the refined pulp suspension in said reactor tank (4, 4') at a temperature between 40-70°C under controlled mixing using an agitating member (7); e) deactivating the enzyme in said reactor tank by means of heating the hydrolysed, pre-refined pulp suspension to a temperature >80°C f) cooling said hydrolysed, pre-refined pulp suspension; g) discharge the hydrolysed, pre-refined pulp suspension and subjecting it to further mechanical treatment to obtain MFC.

IPC Classes  ?

  • D21H 11/18 - Highly hydrated, swollen or fibrillatable fibres
  • C08L 1/02 - CelluloseModified cellulose
  • D21C 5/00 - Other processes for obtaining cellulose, e.g. cooking cotton linters
  • D21C 9/00 - After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters
  • C12N 9/24 - Hydrolases (3.) acting on glycosyl compounds (3.2)

40.

A METHOD AND A SYSTEM FOR PRODUCING MICROFIBRILLATED CELLULOSE

      
Application Number IB2024055203
Publication Number 2024/246763
Status In Force
Filing Date 2024-05-29
Publication Date 2024-12-05
Owner STORA ENSO OYJ (Finland)
Inventor
  • Nousiainen, Laura
  • Suhonen, Mikko
  • Karppinen, Anni
  • Heiskanen, Isto
  • Backfolk, Kaj

Abstract

The present document discloses a method for producing microfibrillated cellulose (MFC) comprising the steps of: a) provide a refined pulp suspension mixed with an enzyme to a reactor tank; b) treat the refined pulp suspension with said enzyme in the reactor tank at a temperature between 40-80°C under controlled mixing by means of an agitating member thus forming a pre-treated pulp suspension; c) adding at least one oxidant to said pre-treated pulp suspension simultaneous to mixing; d) perform oxidation of said pre-treated pulp suspension under elevated temperatures >80°C in said reactor tank for deactivating said enzyme; and e) discharge the pre-treated, pre-refined pulp suspension and subjecting it to further mechanical treatment to obtain MFC.

IPC Classes  ?

  • D21H 11/18 - Highly hydrated, swollen or fibrillatable fibres
  • C08L 1/02 - CelluloseModified cellulose
  • D21C 5/00 - Other processes for obtaining cellulose, e.g. cooking cotton linters
  • D21C 9/00 - After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters
  • C12N 9/24 - Hydrolases (3.) acting on glycosyl compounds (3.2)
  • C12N 9/99 - Enzyme inactivation by chemical treatment

41.

A METHOD FOR PRODUCING A FILM COMPRISING MICROFIBRILLATED CELLULOSE, AND A FILM COMPRISING MICROFIBRILLATED CELLULOSE

      
Application Number 18690070
Status Pending
Filing Date 2022-08-31
First Publication Date 2024-11-14
Owner Stora Enso OYJ (Finland)
Inventor
  • Nylén, Otto
  • Heiskanen, Isto
  • Kankkunen, Jukka
  • Backfolk, Kaj

Abstract

The present invention relates to a method for producing a film comprising microfibrillated cellulose, which comprises: providing a suspension comprising 30-100 weight-% microfibrillated cellulose based on total dry weight: forming a wet web of said suspension by casting on a support being a non-porous support, paper or paperboard: wet-pressing said wet web to form a dewatered web, which comprises applying a press fabric into direct contact with said wet web and conducting said wet web, arranged between said press fabric and said non-porous support, through a pressing equipment: smoothening said dewatered web by applying at least one smoothing press to said dewatered web arranged on said non-porous support so as to form a smoothened web, wherein a pressure of 0.1-25 MPa is applied in each smoothing press, wherein said dewatered web has a dry content of 20-60% by weight when applying said smoothing press(es), and drying said smoothened web to form said film. The invention further relates to a film.

IPC Classes  ?

  • D21H 11/08 - Mechanical or thermomechanical pulp
  • D21H 19/34 - Coatings without pigments applied in a form other than the aqueous solution defined in group comprising cellulose or derivatives thereof
  • D21H 25/12 - Rearranging applied substances, e.g. metering or smoothingRemoving excess material with an essentially cylindrical body, e.g. roll or rod

42.

PROCESS FOR PRODUCING A BINDER FOR A WARM MIX ASPHALT COMPOSITION

      
Application Number IB2024054482
Publication Number 2024/231854
Status In Force
Filing Date 2024-05-08
Publication Date 2024-11-14
Owner STORA ENSO OYJ (Finland)
Inventor
  • Lotti, Heikki
  • Ekström, Jesper

Abstract

The present invention is directed to a process for preparing a binder for a warm mix asphalt composition. The binder comprises lignin, a renewable and bio-based material, which replaces part of the fossil-based bitumen when the components are used in preparing a warm mix asphalt, that comprises a reduced amount of wax, fatty acid amides, surfactants and emulsifiers.

IPC Classes  ?

  • C08L 97/00 - Compositions of lignin-containing materials
  • C07G 1/00 - Low-molecular-weight derivatives of lignin
  • C08H 7/00 - LigninModified ligninHigh-molecular-weight products derived therefrom
  • C08L 95/00 - Compositions of bituminous materials, e.g. asphalt, tar or pitch
  • C09J 195/00 - Adhesives based on bituminous materials, e.g. asphalt, tar or pitch
  • C09J 197/00 - Adhesives based on lignin-containing materials
  • E01C 7/26 - Coherent pavings made in situ made of road-metal and binders of road-metal and bituminous binders mixed with other materials, e.g. cement, rubber, leather, fibre

43.

A BLANK AND A PACKAGE

      
Application Number IB2024054049
Publication Number 2024/224336
Status In Force
Filing Date 2024-04-25
Publication Date 2024-10-31
Owner STORA ENSO OYJ (Finland)
Inventor Aalto, Petri

Abstract

The disclosure relates to a package (2), and to a blank (1) configured to be folded into a package (2), the blank (1) comprising: a paperboard blank (100) and a plastic sheet (200) configured to form at least part of an inside surface of the package (2), wherein the paperboard blank (100) comprises: a bottom panel (110) and three or more side wall panels (120a-d) each having a respective height extension (H1) and a respective length extension (L1), wherein the plastic sheet (200) is attached to two adjacent corner-forming side wall panels (120a-d) at a respective upper attachment zone (150a-d) and forms a corner sheet portion (210a-d) extending between and interconnecting the two adjacent side wall panels (120a-d) as seen in a flat-laid state of the blank (1), and wherein the corner sheet portion (210a-d) is configured to be double folded on to itself and into an interior of the package (2) when the two side wall panels (120a-d) are folded relative to the bottom panel (110) to form the two side walls.

IPC Classes  ?

  • B65D 5/60 - Loose linings
  • B65D 5/20 - Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form

44.

BARRIER COATING FOR PAPER AND PAPERBOARD

      
Application Number IB2024053733
Publication Number 2024/218669
Status In Force
Filing Date 2024-04-17
Publication Date 2024-10-24
Owner STORA ENSO OYJ (Finland)
Inventor
  • Nordström, Tommi
  • Sethi, Jatin
  • Gällstedt, Mikael
  • Bertorelli, Valentin

Abstract

The present invention relates to an aqueous barrier coating composition comprising: 30-60 % by weight of carboxymethyl cellulose, 20-40 % by weight of a cyclic monosaccharide or a derivative thereof and 25-35% by weight of platy-type kaolin particles, based on the total dry weight of the aqueous barrier coating composition. The cyclic monosaccharide or derivative thereof is in particular xylose.

IPC Classes  ?

  • C08L 1/28 - Alkyl ethers
  • C09D 101/28 - Alkyl ethers
  • D21H 19/40 - Coatings with pigments characterised by the pigments siliceous, e.g. clays
  • D21H 19/46 - Non-macromolecular organic compounds
  • D21H 19/52 - CelluloseDerivatives thereof
  • C08B 11/12 - Alkyl or cycloalkyl ethers with substituted hydrocarbon radicals substituted with acid radicals substituted with carboxylic radicals
  • C08K 5/04 - Oxygen-containing compounds
  • C08L 5/14 - HemicelluloseDerivatives thereof

45.

A METHOD FOR PRODUCING A MICROFIBRILLATED CELLULOSE FILM, AND A MICROFIBRILLATED CELLULOSE FILM

      
Application Number IB2024053410
Publication Number 2024/213983
Status In Force
Filing Date 2024-04-08
Publication Date 2024-10-17
Owner STORA ENSO OYJ (Finland)
Inventor
  • Nylén, Otto
  • Rahko, Joanna
  • Kankkunen, Jukka

Abstract

The present invention relates to a method for producing an MFC film comprising the steps of: a) providing a pulp comprising cellulose fibers; b) processing the pulp to form an MFC suspension, comprising subjecting the cellulose fibers to at least one modification treatment, comprising a mechanical fibrillation treatment, the processing being performed at a manufacturing plant; c) conveying the suspension to a film-forming device at the manufacturing plant; d) forming a wet MFC film by providing the suspension on a support by the film-forming device, e) dewatering and/or drying the wet MFC film to a dry MFC film, and f) winding said dry MFC film or said support provided with said dry MFC film onto a core to form a reel, wherein a time period between the start of the at least one modification treatment of step b) and the start of step f) is less than 84 hours. The invention relates also to an MFC film.

IPC Classes  ?

  • C08J 5/18 - Manufacture of films or sheets
  • B32B 29/00 - Layered products essentially comprising paper or cardboard
  • B82Y 30/00 - Nanotechnology for materials or surface science, e.g. nanocomposites
  • D21H 11/18 - Highly hydrated, swollen or fibrillatable fibres
  • D21H 19/34 - Coatings without pigments applied in a form other than the aqueous solution defined in group comprising cellulose or derivatives thereof

46.

METHOD FOR MANUFACTURING A FILM COMPRISING HIGHLY REFINED CELLULOSE

      
Application Number IB2024053465
Publication Number 2024/214004
Status In Force
Filing Date 2024-04-09
Publication Date 2024-10-17
Owner STORA ENSO OYJ (Finland)
Inventor Backfolk, Kaj

Abstract

The invention discloses a method for manufacturing a barrier film comprising highly refined cellulose, the method comprising the steps of: a) providing a web comprising at least 50 % of highly refined cellulose having a Schopper-Riegler (SR) value in the range of 80 – 100, which web has a density in the range of 700-1500 kg/m3, and a wet tensile strength retention (MD) of less than 15%, b) applying an aqueous-based solution or dispersion comprising a polymer on the web, which aqueous based solution or dispersion has a solid content of between 5 – 50 wt%, and c) drying the web applied with the aqueous-based solution or dispersion to a solid content of at least 80 wt%, thereby forming the film.

IPC Classes  ?

  • D21H 11/18 - Highly hydrated, swollen or fibrillatable fibres
  • B32B 29/02 - Layered products essentially comprising paper or cardboard next to a fibrous or filamentary layer
  • B32B 37/00 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
  • B32B 37/14 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
  • C08J 5/18 - Manufacture of films or sheets
  • C08L 1/02 - CelluloseModified cellulose
  • C09D 101/02 - CelluloseModified cellulose
  • D21H 19/10 - Coatings without pigments
  • D21H 19/80 - Paper comprising more than one coating
  • D21H 27/30 - Multi-ply

47.

PRODUCTION OF BONDED AIR-LAID BLANKS

      
Application Number IB2024052931
Publication Number 2024/209310
Status In Force
Filing Date 2024-03-27
Publication Date 2024-10-10
Owner STORA ENSO OYJ (Finland)
Inventor
  • Malmqvist, Martin
  • Törnblom, Maria
  • Broszat, Julia
  • Bergvall, Elisabeth

Abstract

A method and system (100) for producing a bonded air-laid blank (10). Natural fibers and a polymer binder are introduced into a forming head (110) and captured as an unbonded air-laid web (20) on an air- permeable conveyor (120) arranged in connection with an outlet (113) of the forming head (110). The unbonded air-laid web (20) is heated to at least partly melt the polymer binder and bind the natural fibers to form a bonded air-laid blank (10). Non-bonded natural fibers are removed from at least one main surface (12, 14) of the bonded air-laid blank (10) by at least one vacuum suction head (162, 164) of an inline vacuum suction system (160). The bonded air-laid blanks (10) produced by the method and system (100) generate less lint or dust in the form of non-bonded natural fibers.

IPC Classes  ?

  • B08B 5/04 - Cleaning by suction, with or without auxiliary action
  • B27N 3/04 - Manufacture of substantially flat articles, e.g. boards, from particles or fibres from fibres
  • D04H 1/26 - Wood pulp
  • D04H 1/425 - Cellulose series
  • D04H 1/492 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres by fluid jet
  • D04H 1/54 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
  • D04H 1/732 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged by fluid current, e.g. air-lay
  • D21H 25/08 - Rearranging applied substances, e.g. metering or smoothingRemoving excess material
  • D21H 13/10 - Organic non-cellulose fibres

48.

A METHOD FOR MANUFACTURING A DISPERSION COATED FIBER-BASED SUBSTRATE

      
Application Number IB2024052115
Publication Number 2024/194712
Status In Force
Filing Date 2024-03-05
Publication Date 2024-09-26
Owner STORA ENSO OYJ (Finland)
Inventor
  • Backfolk, Kaj
  • Nyflött, Åsa
  • Cunha, Gisela
  • Hiltunen, Mari

Abstract

The present invention relates to a method for manufacturing a dispersion coated fiber-based substrate, said method comprising the steps of: a) forming a fibrous web from one or more fiber suspensions, at least one of said fiber suspensions being a broke suspension, and dewatering, and optionally drying, the fibrous web to obtain a fiber-based substrate having a first main surface and a second main surface; b) forming a dispersion coating layer on the first main surface by applying a dispersion coating composition and drying the applied dispersion coating composition to obtain a dispersion coated fiber-based substrate; wherein the broke suspension in a) comprises 0.1-20 wt% of PHA based on the total solid content of the broke suspension.

IPC Classes  ?

  • D21H 19/28 - Polyesters
  • B32B 27/10 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of paper or cardboard
  • C09D 167/04 - Polyesters derived from hydroxy carboxylic acids, e.g. lactones
  • D21H 11/14 - Secondary fibres
  • D21H 19/12 - Coatings without pigments applied as a solution using water as the only solvent, e.g. in the presence of acid or alkaline compounds
  • C08K 5/00 - Use of organic ingredients
  • C08K 5/053 - Polyhydroxylic alcohols
  • C08L 67/04 - Polyesters derived from hydroxy carboxylic acids, e.g. lactones
  • C09K 23/38 - Alcohols, e.g. oxidation products of paraffins
  • D21H 23/22 - Addition to the formed paper

49.

PHA DISPERSION COATING COMPOSITION AND COATED FIBER-BASED SUBSTRATE

      
Application Number IB2024052120
Publication Number 2024/194713
Status In Force
Filing Date 2024-03-05
Publication Date 2024-09-26
Owner STORA ENSO OYJ (Finland)
Inventor
  • Backfolk, Kaj
  • Nyflött, Åsa
  • Cunha, Gisela
  • Kishani, Saina

Abstract

The present invention relates to a dispersion coating composition for coating of a fiber-based substrate, said dispersion coating composition comprising, in a liquid medium: 50-99 wt% of PHA (polyhydroxyalkanoate) particles, based on the total solid content of the dispersion coating composition, and 1-50 wt% of low molecular weight polyol dispersant, based on the total solid content of the dispersion coating composition, wherein the dispersion coating composition has a total solid content in the range of 20-80 wt%. The present invention further relates to a fiber-based substrate coated with such a dispersion coating composition and to a packaging container comprising such a dispersion coated fiber-based substrate.

IPC Classes  ?

  • C09D 167/00 - Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chainCoating compositions based on derivatives of such polymers
  • B32B 9/00 - Layered products essentially comprising a particular substance not covered by groups
  • C09D 7/40 - Additives
  • C09K 23/00 - Use of substances as emulsifying, wetting, dispersing, or foam-producing agents
  • D21H 19/12 - Coatings without pigments applied as a solution using water as the only solvent, e.g. in the presence of acid or alkaline compounds
  • D21H 19/28 - Polyesters

50.

PAPER OR PAPERBOARD BASED PACKAGING LAMINATE

      
Application Number 18578479
Status Pending
Filing Date 2022-07-07
First Publication Date 2024-09-19
Owner Stora Enso OYJ (Finland)
Inventor
  • Bonnerup, Chris
  • Backfolk, Kaj
  • Werner, Fredrik

Abstract

A paper or paperboard based packaging laminate comprising: a paper or paperboard base layer, a mineral coating layer, a PVOH coating layer, and a metallized film layer, wherein the mineral coating layer is arranged between and in contact with the base layer and the PVOH coating layer, and wherein the metallized film layer is laminated to the PVOH coating layer, and wherein the packaging laminate has an oxygen transfer rate (OTR), measured according to the standard ASTM F-1927 at 90% relative humidity and 38° C., of less than 5 cc/m2/day. Also a container with such a paper or paperboard based packaging laminate.

IPC Classes  ?

  • B65D 65/40 - Applications of laminates for particular packaging purposes
  • B32B 27/10 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of paper or cardboard
  • B32B 27/30 - Layered products essentially comprising synthetic resin comprising vinyl resinLayered products essentially comprising synthetic resin comprising acrylic resin
  • B32B 27/32 - Layered products essentially comprising synthetic resin comprising polyolefins
  • B32B 29/00 - Layered products essentially comprising paper or cardboard

51.

A BLANK FOR FORMING A PACKAGE AND A PACKAGE FORMED FROM SUCH A BLANK

      
Application Number 18578760
Status Pending
Filing Date 2022-07-12
First Publication Date 2024-09-12
Owner Stora Enso OYJ (Finland)
Inventor Bondesson, Marie

Abstract

The disclosure relates to a blank (1) configured to form a package (100), the blank (1) comprising a bottom panel (10), a rear wall panel (21), a front wall panel (22), two opposing end wall panels (31, 32), two opposing sets of top wall panels (40), two rear sets of corner panels (50) and two rear locking flaps (55). Each set of top wall panels (40) is configured to form a double-walled top wall (140) when the blank (1) is erected to form the package (100). Each rear locking flap (55) being foldably connected to an outwardly facing longitudinally or transversally extending side of the respective rear set of corner panels (50) and extending away from the respective rear set of corner panels (50) such that the rear locking flap (55), as the blank (1) is erected into the package (100), extends longitudinally inwardly from the respective end wall panel (31, 32) and such that each rear locking flap (55) is positioned between the respective first and second top wall panel (41, 42) forming the double-walled top wall (140). The disclosure also relates to a package (100) formed from a blank (1).

IPC Classes  ?

  • B65D 5/22 - Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form held erect by extensions of one or more sides being doubled-over to enclose extensions of adjacent sides
  • B65D 5/24 - Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form with adjacent sides interconnected by gusset folds
  • B65D 5/66 - Hinged lids

52.

KIT OF BLANKS, TRAY, AND A METHOD OF MAKING A TRAY

      
Application Number IB2024051663
Publication Number 2024/180427
Status In Force
Filing Date 2024-02-21
Publication Date 2024-09-06
Owner STORA ENSO OYJ (Finland)
Inventor Kjellberg, Anna

Abstract

The disclosure relates to a kit of blanks (100, 200) configured to be brought together and folded to form a tray (300), the kit of blanks comprising a first blank (100) comprising a bottom panel (110) and a plurality of side wall panels (120a-h) being foldably connected to the bottom panel (110), and a second blank (200) comprising a circumferentially extending flange panel (210) and side wall panels (220a1-3, 220b1-3, 220c, 220d) being foldably connected to the flange panel (210), wherein the side walls panels (120a-h) of the first blank (100) are configured to be folded to form side walls of the tray (300) and wherein the second blank (200) is configured to be positioned with its flange panel (210) on top of flange panels (121a-h) of the first blank (100) and with its side wall panels (220a1-3, 220b1-3, 220c, 220d) along inside surfaces of associated side wall panels (120a-h) of the first blank (120). The disclosure also relates to a tray and to a method.

IPC Classes  ?

  • B65D 5/20 - Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form
  • B65D 5/32 - Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper having bodies formed by folding and interconnecting two or more blanks
  • B65D 5/44 - Integral, inserted or attached portions forming internal or external fittings
  • B65D 5/56 - Linings or internal coatings

53.

OXIDATION METHOD WITH REDUCED CARBON DIOXIDE EMISSON

      
Application Number IB2024051564
Publication Number 2024/176084
Status In Force
Filing Date 2024-02-19
Publication Date 2024-08-29
Owner STORA ENSO OYJ (Finland)
Inventor
  • Torssell, Staffan
  • Lendrup, Henrik

Abstract

The present document relates to a process and system for continuous oxidation of a substance comprising one or more of a primary hydroxy group, an aldehyde group and/or a carbonyl group in which process carbon dioxide formed in the oxidation reaction is separated from nitrogen-containing off-gases of the reaction The nitrogen-containing off-gases are then recycled.

IPC Classes  ?

  • C07B 33/00 - Oxidation in general
  • B01D 53/00 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols
  • C07B 41/06 - Formation or introduction of functional groups containing oxygen of carbonyl groups
  • C07B 41/08 - Formation or introduction of functional groups containing oxygen of carboxyl groups or salts, halides or anhydrides thereof
  • C07B 41/12 - Formation or introduction of functional groups containing oxygen of carboxylic acid ester groups
  • F25J 1/00 - Processes or apparatus for liquefying or solidifying gases or gaseous mixtures

54.

PAPERBOARD WITH IMPROVED LIGHT BARRIER PROPERTIES

      
Application Number IB2024051707
Publication Number 2024/176159
Status In Force
Filing Date 2024-02-22
Publication Date 2024-08-29
Owner STORA ENSO OYJ (Finland)
Inventor
  • Ekberg, Magnus
  • Backfolk, Kaj

Abstract

The invention relates to a paperboard with improved light barrier properties comprising at least three plies; a top ply and a back ply, and a middle ply. The top ply comprises at least 80 wt% of chemical pulp. The middle ply comprises at least 40 wt % CTMP from spruce as calculated on the total fiber weight of respective ply, wherein the CTMP from spruce has a brightness according to ISO 2470- 1:2016 of between 40 – 60. The back ply comprises at least 80wt% unbleached hardwood or softwood sulphate pulp as calculated on the total fiber weight of said back ply, wherein a) if said unbleached sulphate pulp in the back ply is from hardwood such hardwood unbleached sulphate pulp exhibits a kappa number according to ISO 302:2015 of at least 15, b) if said unbleached sulphate pulp in the back ply is from softwood such softwood sulphate pulp exhibits a kappa number according to ISO 302:2015 of at least 20. The invention further relates to a packaging material, a liquid packaging container made from said packaging material and a method of manufacturing a paperboard.

IPC Classes  ?

  • D21H 27/38 - Multi-ply at least one of the sheets having a fibrous composition differing from that of other sheets
  • B32B 29/00 - Layered products essentially comprising paper or cardboard
  • B65D 81/30 - Adaptations for preventing deterioration or decay of contentsApplications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants by excluding light or other outside radiation
  • D21H 11/02 - Chemical or chemomechanical pulp

55.

A BLANK AND A PACKAGE

      
Application Number IB2024051758
Publication Number 2024/176185
Status In Force
Filing Date 2024-02-23
Publication Date 2024-08-29
Owner STORA ENSO OYJ (Finland)
Inventor
  • Penttinen, Vesa
  • Tuhkunen, Mika

Abstract

A blank forming a double-walled box, comprising: a rectangular inner bottom panel a first and a second inner end wall panel foldably connected to a respective one of two opposing transversally extending sides of the inner bottom panel, a first and a second inner side wall panel foldably connected to a respective one of two opposing longitudinally extending sides of the inner bottom panel, a rectangular outer bottom panel which is larger in size than said inner bottom panel (100), a first and a second outer end wall panel foldably connected to a respective one of two opposing transversally extending sides of the outer bottom panel, a first outer side wall panel comprising two opposing longitudinally extending sides, of which a first side is foldably connected to said first inner side wall panel and a second side is foldably connected to said outer bottom panel, a second outer side wall panel foldably connected to a longitudinally extending side of said second inner side wall panel, wherein the inner bottom panel, the first and second inner side wall panels and the first and second inner end wall panels define a box interior when formed into a box, and wherein the outer bottom panel, the first and second outer side wall panels, and the first and second outer end wall panels are configured to form an outer layer of said box when formed into a box, such that each side of the box comprises double walls. The present invention also relates to a box formed by folding a blank according to the invention.

IPC Classes  ?

  • B65D 5/20 - Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form
  • B65D 5/28 - Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form with extensions of sides permanently secured to adjacent sides, with sides permanently secured together by adhesive strips, or with sides held in place solely by rigidity of material
  • B65D 5/42 - Details of containers or of foldable or erectable container blanks

56.

METHOD OF HOT PRESSING A SOLID CELLULOSE FOAM, AND A SOLID CELLULOSE FOAM PRODUCED FROM SAID METHOD

      
Application Number IB2024051476
Publication Number 2024/171125
Status In Force
Filing Date 2024-02-16
Publication Date 2024-08-22
Owner STORA ENSO OYJ (Finland)
Inventor Broszat, Julia

Abstract

The present invention relates to a method for hot pressing at least one three-dimensional (3D) region in a solid cellulose foam, said method comprising the steps of: providing a solid cellulose foam; providing at least one pressing tool; heating at least one of said solid cellulose foam and said at least one pressing tool to a forming temperature, and pressing said at least one pressing tool into at least one surface of said cellulose foam thereby hot pressing said at least one 3D region. The invention further relates to a solid cellulose foam comprising at least one 3D region hot pressed by the method.

IPC Classes  ?

  • C08J 9/36 - After-treatment
  • B29C 43/00 - Compression moulding, i.e. applying external pressure to flow the moulding materialApparatus therefor
  • B29C 51/00 - Shaping by thermoforming, e.g. shaping sheets in matched moulds or by deep-drawingApparatus therefor
  • B32B 5/18 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by features of a layer containing foamed or specifically porous material
  • B65D 65/38 - Packaging materials of special type or form
  • B65D 81/03 - Wrappers or envelopes with shock-absorbing properties, e.g. bubble films
  • C08J 9/00 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof
  • C08L 1/02 - CelluloseModified cellulose

57.

SOLID CELLULOSE FOAM COMPRISING DISCRETE UNITS OF CELLULOSE FOAM EMBEDDED IN A CELLULOSE FOAM MATRIX

      
Application Number IB2024051475
Publication Number 2024/171124
Status In Force
Filing Date 2024-02-16
Publication Date 2024-08-22
Owner STORA ENSO OYJ (Finland)
Inventor
  • Sterner, Martin
  • Hult Torron, Daniel
  • Köklükaya, Oruç
  • Ghanadpour, Maryam

Abstract

The present invention relates to a method for producing a solid cellulose foam, where the method comprises: providing discrete units of a first cellulose foam on a surface to obtain a first foam deposition, wherein the distance between adjacent discrete units is in the range of from 2 to 20 mm; depositing a second wet cellulose foam between the discrete units to obtain a subsequent foam deposition; and drying the second wet cellulose foam in the subsequent foam deposition to obtain a solid cellulose foam wherein discrete units of cellulose foam are embedded in a cellulose foam matrix. The present invention also relates to a solid cellulose foam comprising discrete units of a cellulose foam embedded in a cellulose foam matrix, wherein the distance between adjacent discrete units is in the range of from 2 to 20 mm.

IPC Classes  ?

  • C08J 9/30 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof by mixing gases into liquid compositions or plastisols, e.g. frothing with air
  • A01G 24/27 - Pulp, e.g. bagasse
  • B29C 44/12 - Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
  • C08J 9/35 - Composite foams, i.e. continuous macromolecular foams containing discontinuous cellular particles or fragments
  • D21H 21/56 - Foam
  • A01G 24/48 - Growth substratesCulture mediaApparatus or methods therefor characterised by their structure containing foam or presenting a foam structure
  • C08J 9/28 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof by elimination of a liquid phase from a macromolecular composition or article, e.g. drying of coagulum
  • C08L 1/02 - CelluloseModified cellulose
  • D21H 21/24 - Surfactants

58.

METHOD FOR PRODUCING A SOLID CELLULOSE FOAM, A SOLID CELLULOSE FOAM, AND USE THEROF

      
Application Number IB2024051478
Publication Number 2024/171127
Status In Force
Filing Date 2024-02-16
Publication Date 2024-08-22
Owner STORA ENSO OYJ (Finland)
Inventor Sterner, Martin

Abstract

The present invention relates to a method for producing a solid cellulose foam. The method comprises depositing a first wet cellulose foam to obtain a first wet foam deposition, which is subsequently provided with cutting lines extending at least partially through the height of the first wet foam deposition, to form pillars of wet cellulose foam. During drying of the first wet foam deposition, gaps are formed along the cutting lines so that the pillars are separated by said gaps. In a subsequent deposition step, a second wet cellulose foam is deposited so as to obtain a subsequent wet foam deposition that fills the gaps between the pillars. After drying, a solid cellulose foam comprising pillars of a first solid foam deposition and a subsequent solid cellulose foam deposition filling the gaps between the pillars is obtained.

IPC Classes  ?

  • C08J 9/30 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof by mixing gases into liquid compositions or plastisols, e.g. frothing with air
  • A01G 24/27 - Pulp, e.g. bagasse
  • B29C 44/12 - Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
  • C08J 9/35 - Composite foams, i.e. continuous macromolecular foams containing discontinuous cellular particles or fragments
  • D21H 21/56 - Foam
  • A01G 24/48 - Growth substratesCulture mediaApparatus or methods therefor characterised by their structure containing foam or presenting a foam structure
  • C08J 9/28 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof by elimination of a liquid phase from a macromolecular composition or article, e.g. drying of coagulum
  • C08L 1/02 - CelluloseModified cellulose
  • D21H 21/24 - Surfactants

59.

A METHOD FOR MANUFACTURING A PAPER OR PAPERBOARD BASED PACKAGING LAMINATE

      
Application Number IB2023062944
Publication Number 2024/165914
Status In Force
Filing Date 2023-12-19
Publication Date 2024-08-15
Owner STORA ENSO OYJ (Finland)
Inventor
  • Nylén, Otto
  • Karppinen, Anni
  • Backfolk, Kaj

Abstract

The present invention relates to a method for manufacturing a paper or paperboard based packaging laminate, said method comprising: a) providing a paper or paperboard substrate, b) providing a microfibrillated cellulose (MFC) film comprising at least 50 wt% of MFC based on the dry weight of the MFC film, and c) laminating a surface of the paper or paperboard substrate to a surface of the MFC film by a melt adhesive process using a melt adhesive comprising at least 50 wt% of a water soluble thermoplastic polymer based on the dry weight of the melt adhesive, wherein the melt adhesive is applied to the surface of the paper or paperboard substrate and/or to the surface of the MFC film in a low solvent or solvent free form.

IPC Classes  ?

  • B32B 29/00 - Layered products essentially comprising paper or cardboard
  • C08L 1/02 - CelluloseModified cellulose
  • C09J 5/06 - Adhesive processes in generalAdhesive processes not provided for elsewhere, e.g. relating to primers involving heating of the applied adhesive
  • C09J 5/08 - Adhesive processes in generalAdhesive processes not provided for elsewhere, e.g. relating to primers using foamed adhesives
  • C09J 101/02 - CelluloseModified cellulose
  • D21H 11/18 - Highly hydrated, swollen or fibrillatable fibres
  • D21H 19/00 - Coated paperCoating material

60.

IN-LINE WEB MATERIAL PROCESSING MACHINE AND METHOD FOR PRODUCING A COATED MATERIAL

      
Application Number IB2024051168
Publication Number 2024/166031
Status In Force
Filing Date 2024-02-08
Publication Date 2024-08-15
Owner STORA ENSO OYJ (Finland)
Inventor
  • Nordström, Tommi
  • Backfolk, Kaj
  • Ekman, Kalle

Abstract

An in-line web material processing machine (1) for producing a coated material is disclosed. The processing machine comprises a process vacuum chamber (31) housing an unwinder reel holder for holding a first supply roll (51) of web material (2) to be processed and a vacuum coating unit (52) for deposing a coating on the web material. A loading vacuum chamber (32) housing a second supply roll of web material to be processed is provided, with an inlet closure (321) arranged between the process vacuum chamber (31) and the loading vacuum chamber (32). The inlet closure (321) is arranged to be moved between a closed state, in which the vacuum chambers are separated from each other, and an open state, in which access is provided between the vacuum chambers. An automatic reel change system (4) is operable to move the second supply roll of web material from the loading vacuum chamber (32) to the process vacuum chamber (31) under vacuum when the inlet closure (321) is in the open state and to change a supply roll (51) on the unwinder reel holder from the first supply roll to the second supply roll under vacuum.

IPC Classes  ?

  • C23C 14/56 - Apparatus specially adapted for continuous coatingArrangements for maintaining the vacuum, e.g. vacuum locks
  • B65H 19/18 - Attaching, e.g. pasting, the replacement web to the expiring web
  • C23C 16/54 - Apparatus specially adapted for continuous coating
  • D21H 19/08 - Metal coatings applied as vapour, e.g. in vacuum

61.

BARRIER COATING FOR PAPER AND PAPERBOARD

      
Application Number 18568432
Status Pending
Filing Date 2022-06-07
First Publication Date 2024-08-15
Owner Stora Enso OYJ (Finland)
Inventor
  • Nyflött, Åsa
  • Bonnerup, Chris
  • Knöös, Isabel
  • Karlsson, Anders

Abstract

The present invention relates to an aqueous barrier coating composition comprising: 20-80% by weight of a dissolved first polysaccharide having a first degree of polymerization (DP1) of at least 150, based on the total solids content of the aqueous barrier coating composition; and 20-80% by weight of a dissolved second polysaccharide having a second degree of polymerization (DP2) of 100 or less, based on the total solids content of the aqueous barrier coating composition; wherein the ratio of DP1:DP2 is at least 10:1; and wherein the aqueous barrier coating composition has a total solids content in the range of 10-90% by weight.

IPC Classes  ?

62.

BIOBASED BARRIER FILM FOR PACKAGING MATERIAL

      
Application Number 18566361
Status Pending
Filing Date 2022-06-03
First Publication Date 2024-08-08
Owner Stora Enso OYJ (Finland)
Inventor
  • Heiskanen, Isto
  • Backfolk, Kaj
  • Lyytikäinen, Katja

Abstract

The present invention relates to a biobased barrier film for a paper or paperboard-based packaging material, said barrier film comprising: a substrate layer and a coating layer disposed on at least one surface of the substrate layer, wherein said substrate layer has a grammage in the range of 1-60 g/m2 and comprises at least 50 wt % of highly refined cellulose pulp based on the dry weight of the substrate layer, and wherein said coating layer has a grammage in the range of 1-15 g/m2 and comprises at least 50 wt % of a film forming modified starch and 0.1-10 wt % of a biobased lubricant, based on the dry weight of the coating layer.

IPC Classes  ?

  • D21H 21/16 - Sizing or water-repelling agents
  • B32B 29/00 - Layered products essentially comprising paper or cardboard
  • B65D 65/40 - Applications of laminates for particular packaging purposes
  • D21H 11/18 - Highly hydrated, swollen or fibrillatable fibres
  • D21H 19/12 - Coatings without pigments applied as a solution using water as the only solvent, e.g. in the presence of acid or alkaline compounds
  • D21H 19/40 - Coatings with pigments characterised by the pigments siliceous, e.g. clays
  • D21H 19/46 - Non-macromolecular organic compounds
  • D21H 19/54 - Starch
  • D21H 23/22 - Addition to the formed paper
  • D21H 27/10 - Packing paper

63.

MULTI-PLY LINER FOR USE IN CORRUGATED BOARD

      
Application Number 18561430
Status Pending
Filing Date 2022-05-13
First Publication Date 2024-08-08
Owner Stora Enso OYJ (Finland)
Inventor
  • Heiskanen, Isto
  • Kankkunen, Jukka
  • Saarinen, Ismo
  • Lyyra, Jukka
  • Rvenniemi, Juha
  • Taipale, Harri
  • Heikkinen, Hannu

Abstract

The present invention relates to a multi-ply liner for use in corrugated board, said multi-ply liner comprising: a first ply, and a second ply, wherein said first ply comprises at least 70 wt % unbleached kraft pulp and between 5-30 wt % neutral sulfite semi chemical (NSSC) pulp based on dry weight, and wherein said second ply comprises at least 50 wt % NSSC pulp and between 5-50 wt % unbleached kraft pulp based on dry weight.

IPC Classes  ?

  • D21H 27/40 - Multi-ply at least one of the sheets being non-planar, e.g. crêped
  • D21F 11/12 - Making corrugated paper or board
  • D21H 11/04 - Kraft or sulfate pulp
  • D21H 11/06 - Sulfite or bisulfite pulp
  • D21H 11/14 - Secondary fibres
  • D21H 21/16 - Sizing or water-repelling agents
  • D21H 27/38 - Multi-ply at least one of the sheets having a fibrous composition differing from that of other sheets

64.

PROCESSES FOR THE PREPARATION OF 2,5-FURANDICARBOXYLIC ACID AND INTERMEDIATES AND DERIVATIVES THEREOF

      
Application Number 18391421
Status Pending
Filing Date 2023-12-20
First Publication Date 2024-08-01
Owner Stora Enso Oyj (Finland)
Inventor
  • Sokolovskii, Valery
  • Murphy, Vincent J.
  • Boussie, Thomas R.
  • Diamond, Gary M.
  • Dias, Eric L.
  • Zhu, Guang
  • Longmire, James M.
  • Herrmann, Stanley
  • Torssell, Staffan
  • Lavrenko, Mayya

Abstract

The present disclosure provides processes for the production of 2-5-furandicarboxylic acid (FDCA) and intermediates thereof by the chemocatalytic conversion of a furanic oxidation substrate. The present disclosure further provides processes for preparing derivatives of FDCA and FDCA-based polymers. In addition, the present disclosure provides crystalline preparations of FDCA, as well as processes for making the same.

IPC Classes  ?

  • C07D 307/68 - Carbon atoms having three bonds to hetero atoms with at the most one bond to halogen
  • B01J 8/02 - Chemical or physical processes in general, conducted in the presence of fluids and solid particlesApparatus for such processes with stationary particles, e.g. in fixed beds

65.

METHOD FOR MANUFACTURING FLUTING AND/OR LINER FOR CORRUGATED BOARD

      
Application Number 18561431
Status Pending
Filing Date 2022-05-13
First Publication Date 2024-08-01
Owner Stora Enso OYJ (Finland)
Inventor
  • Heiskanen, Isto
  • Kankkunen, Jukka
  • Saarinen, Ismo
  • Lyyra, Jukka
  • Rvenniemi, Juha
  • Taipale, Harri
  • Heikkinen, Hannu

Abstract

A method for manufacturing fluting and/or liner for corrugated board, comprising the step(s): a) using broke obtained from manufacturing of liner in the pulp used for manufacturing of fluting wherein at least 50% of the broke is external broke from the manufacturing of liner, and/or b) using broke obtained from manufacturing of fluting in the pulp used for manufacturing of liner wherein at least 50% of the broke is external broke from the manufacturing of fluting.

IPC Classes  ?

  • D21F 11/12 - Making corrugated paper or board
  • D21H 11/14 - Secondary fibres
  • D21H 27/40 - Multi-ply at least one of the sheets being non-planar, e.g. crêped

66.

FRACTIONATION OF CRUDE TALL OIL

      
Application Number 18564200
Status Pending
Filing Date 2022-06-20
First Publication Date 2024-08-01
Owner Stora Enso OYJ (Finland)
Inventor
  • Kavakka, Jari
  • Torssell, Staffan

Abstract

The present invention is directed to fractionation of crude tall oil, which originates from the Kraft process black liquor. In the method according to the present invention, strongly basic anion exchange resins are used to efficiently separate fractions from the crude tall oil.

IPC Classes  ?

  • B01D 15/36 - Selective adsorption, e.g. chromatography characterised by the separation mechanism involving ionic interaction, e.g. ion-exchange, ion-pair, ion-suppression or ion-exclusion
  • B01J 41/05 - Processes using organic exchangers in the strongly basic form
  • C11B 3/06 - Refining fats or fatty oils by chemical reaction with bases

67.

FLUTING OR LINER COMPRISING NSSC PULP

      
Application Number 18559419
Status Pending
Filing Date 2022-05-13
First Publication Date 2024-07-18
Owner Stora Enso OYJ (Finland)
Inventor
  • Heiskanen, Isto
  • Backfolk, Kaj
  • Kankkunen, Jukka
  • Sippus, Tuomo

Abstract

The present invention relates to a fluting or liner for corrugated board comprising a neutral sulfite semi chemical (NSSC) pulp, wherein said NSSC pulp has an ash content of less than 1.8 wt %, as determined according to standard ISO 1762:2019. The invention further relates to a corrugated board comprising the fluting and/or liner.

IPC Classes  ?

68.

MULTIPLY CONTAINERBOARD FOR USE IN CORRUGATED BOARD

      
Application Number 18559421
Status Pending
Filing Date 2022-05-13
First Publication Date 2024-07-18
Owner Stora Enso OYJ (Finland)
Inventor
  • Heiskanen, Isto
  • Kankkunen, Jukka

Abstract

The present invention relates to a multiply containerboard for use in corrugated board, said multiply containerboard comprising: a first outer ply, a second outer ply, and at least one intermediate ply sandwiched between the first and second outer ply, wherein said first and second outer ply comprise at least 70 wt % neutral sulfite semi chemical (NSSC) pulp based on dry weight, and wherein said intermediate ply comprises at least 30 wt % unbleached kraft pulp based on dry weight and at least one cellulose based strength enhancement agent, and wherein said intermediate ply comprises less than 30 wt % NSSC pulp based on dry weight.

IPC Classes  ?

  • D21H 27/40 - Multi-ply at least one of the sheets being non-planar, e.g. crêped
  • B32B 29/00 - Layered products essentially comprising paper or cardboard
  • B32B 29/08 - Corrugated paper or cardboard
  • D21F 11/04 - Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibreboard production, on paper-making machines of the Fourdrinier type paper or board consisting of two or more layers
  • D21H 11/04 - Kraft or sulfate pulp
  • D21H 11/06 - Sulfite or bisulfite pulp
  • D21H 21/16 - Sizing or water-repelling agents
  • D21H 21/18 - Reinforcing agents
  • D21H 27/10 - Packing paper
  • D21H 27/38 - Multi-ply at least one of the sheets having a fibrous composition differing from that of other sheets

69.

MULTIPLY CONTAINERBOARD FOR USE IN CORRUGATED BOARD

      
Application Number 18559422
Status Pending
Filing Date 2022-05-13
First Publication Date 2024-07-18
Owner Stora Enso OYJ (Finland)
Inventor
  • Heiskanen, Isto
  • Kankkunen, Jukka

Abstract

The present invention relates to a multiply containerboard for use in corrugated board, said multiply containerboard comprising: a first outer ply comprising a strength enhancement agent, a second outer ply comprising a strength enhancement agent, and an interfacial layer joining said first and second outer ply, wherein each of said first and second outer ply comprise at least 50 wt % neutral sulfite semi chemical (NSSC) pulp based on dry weight, and wherein said interfacial layer comprises a strength enhancement agent in an amount of 0.5-20 gsm wherein the amount of strength enhancement agent in the interfacial layer is higher, preferably at least twice as high as the concentration of the strength enhancement agent in each of the first and second outer ply.

IPC Classes  ?

70.

PACKAGING BOX

      
Application Number IB2023062986
Publication Number 2024/147054
Status In Force
Filing Date 2023-12-20
Publication Date 2024-07-11
Owner STORA ENSO OYJ (Finland)
Inventor
  • Cui, Jinglun
  • Wang, Xiangrui

Abstract

The disclosure relates to a packaging box with a form of single piece comprising: an outer-box structure formed by an outer-box side plate, the outer-box side plate having an outer-box bottom which has a common edge and outer bottom edges extending transversely to the common edge; an inner-tray structure formed by an inner-tray side plate, the inner-tray side plate having an inner-tray bottom which is jointed to the outer-box bottom at the common edge and has a first edge and a second edge transverse to the common edge as well as a third edge opposite to the common edge, wherein the outer-box side plate and the inner-tray side plate are capable of rotating with respect to each other by folding at the common edge; wherein the outer-box structure and/or the inner-tray structure has a double-layer side wall formed by a folding structure at one of the outer bottom edges and/or one of the first edge, the second edge, the third edge, the folding structure comprising a first side, a second side, a third and a fourth side jointed in this order by creasing lines, the first side being joint at corresponding edge and the fourth side being capable of being fixed to the corresponding bottom.

IPC Classes  ?

  • B65D 5/20 - Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form
  • B65D 5/30 - Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form with tongue-and-slot or like connections between sides and extensions of other sides
  • B65D 5/50 - Internal supporting or protecting elements for contents
  • B65D 81/02 - Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage

71.

A PACKAGING STRUCTURE FOR BOTTLE-TYPE CONTAINER

      
Application Number IB2024050014
Publication Number 2024/147080
Status In Force
Filing Date 2024-01-02
Publication Date 2024-07-11
Owner STORA ENSO OYJ (Finland)
Inventor
  • Liu, Simei
  • Gong, Honglai

Abstract

A packaging structure (10) for a bottle-type container is characterized in that the packaging structure comprises: a first plate (100), a second plate (200), a third plate (300) and a fourth plate (400) connected in this order and each extending along a longitudinal direction (X), the first plate (100) being opposite to the third plate (300), the second plate (200) being opposite to the fourth plate (400), and the first plate (100) being capable of being fixed to the fourth plate (400), wherein the first plate (100) has at least one first cut-out (110) for receiving at least a part of the bottle-type container, and the third plate (300) has a second cut-out (310) for receiving at least a part of the bottle-type container and corresponding to the first cut-out (110), and wherein the packaging structure (10) has a form of single sheet.

IPC Classes  ?

  • B65D 71/22 - Openings formed in the sidewall
  • B65D 5/50 - Internal supporting or protecting elements for contents
  • B65D 71/30 - Bundles of articles held together by packaging elements for convenience of storage or transport, e.g. portable segregating carrier for plural receptacles such as beer cans or pop bottlesBales of material comprising a plurality of articles completely or mainly held together by packaging elements, e.g. under tension the packaging elements being formed by folding a single blank having the shape of a tube, without, or not being characterised by, end walls characterised by the handle unitary with the tubular packaging elements

72.

CASTING DEVICE, SYSTEM AND METHOD OF CASTING AN MFC FILM

      
Application Number 18547374
Status Pending
Filing Date 2022-02-23
First Publication Date 2024-07-11
Owner Stora Enso OYJ (Finland)
Inventor
  • Nylèn, Otto
  • Pihko, Riku
  • Kunnari, Vesa
  • Kraft, Marko

Abstract

A device (4) for applying a viscous liquid, in particular an MFC dispersion, onto a moving substrate (52) comprises an inlet (72, 73a-73f) for the viscous liquid, a casting chamber (61a, 61b), a lower portion of which being open to the substrate (52), and a metering portion (69, 661), for limiting a thickness of a wet film that is formed on the substrate downstream of the device. The device further comprises a shear section (42) arranged inside the casting chamber (61a, 61b). The shear section (42) comprises a fluidization rod (68), arranged in the casting chamber (61a, 61b), for providing shearing of the viscous liquid inside the casting chamber (61a, 61b).

IPC Classes  ?

  • B05C 3/18 - Apparatus in which the work is brought into contact with a bulk quantity of liquid or other fluent material only one side of the work coming into contact with the liquid or other fluent material
  • B05C 1/08 - Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller
  • B05C 9/10 - Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by groups , or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material and performing an auxiliary operation the auxiliary operation being performed before the application
  • D21H 23/40 - Addition to the formed paper by contacting paper with an excess of material, e.g. from a reservoir or in a manner necessitating removal of applied excess material from the paper only one side of the paper being in contact with the material

73.

METHOD FOR MANUFACTURING A BARRIER FILM COMPRISING HIGHLY REFINED CELLULOSE

      
Application Number 18548368
Status Pending
Filing Date 2022-03-08
First Publication Date 2024-07-11
Owner Stora Enso OYJ (Finland)
Inventor
  • Heiskanen, Isto
  • Backfolk, Kaj
  • Lyytikäinen, Katja
  • Moberg, Anders
  • Kankkunen, Jukka

Abstract

The present invention relates to a method for manufacturing a barrier film comprising highly refined cellulose, said method comprising: a) providing a highly refined cellulose pulp suspension comprising highly refined cellulose pulp having a Schopper-Riegler (SR) number in the range of 40-98 as determined by standard ISO 5267-1 and a content of fibers having a length >0.2 mm of at least 7 million fibers per gram based on dry weight, at a consistency in the range of 0.1-1.5 wt %; b) forming a web of the highly refined cellulose pulp suspension and dewatering the web in a paper machine former on a wire to a consistency of at least 5 wt % to obtain a substrate web, wherein the white water removed from the pulp contains 2-25 wt %, preferably 5-20 wt % and more preferably at least 5-15 wt % of the solids of the highly refined cellulose pulp suspension provided in step a); c) optionally further dewatering and optionally drying the substrate web; d) coating the optionally further dewatered and optionally dried substrate web with a coating suspension comprising cellulose fines or microfibrillated cellulose to obtain a coated web; and e) dewatering and/or drying the coated web to obtain a barrier film comprising highly refined cellulose.

IPC Classes  ?

  • D21H 11/18 - Highly hydrated, swollen or fibrillatable fibres
  • D21F 1/80 - Pulp catching, de-watering, or recoveringRe-use of pulp-water using endless screening belts
  • D21F 9/00 - Complete machines for making continuous webs of paper
  • D21H 23/28 - Addition before the dryer section, e.g. at the wet end or press section
  • D21H 23/48 - Curtain coaters
  • D21H 27/30 - Multi-ply

74.

PERFORMA NOVA

      
Application Number 1797162
Status Registered
Filing Date 2024-04-24
Registration Date 2024-04-24
Owner Stora Enso Oyj (Finland)
NICE Classes  ? 16 - Paper, cardboard and goods made from these materials

Goods & Services

Paperboard [cardboard]; paper; collapsible cardboard boxes; boxes of cardboard; corrugated cardboard; cardboard containers; industrial paper and cardboard; packaging materials made of cardboard; packing [cushioning, stuffing] materials of paper or cardboard; cardboard for food and beverages products.

75.

A METHOD FOR MANUFACTURING A COATED PAPER OR PAPERBOARD PRODUCT

      
Application Number IB2023062858
Publication Number 2024/141847
Status In Force
Filing Date 2023-12-18
Publication Date 2024-07-04
Owner STORA ENSO OYJ (Finland)
Inventor
  • Nordström, Tommi
  • Heiskanen, Isto

Abstract

The present invention relates to a method for manufacturing a coated paper or paperboard product, said method comprising: a) providing a paper or paperboard substrate having a grammage of at least 100 g/m2, a density below 900 kg/m3, and a moisture content of at least 3.5 wt%, as determined according to ISO 638, said paper or paperboard substrate having a first main surface and a second main surface, b) forming a first water vapor barrier layer on the first main surface of the paper or paperboard substrate, said first water vapor barrier layer comprising a thermoplastic polymer, c) forming a second water vapor barrier layer on the second main surface of the paper or paperboard substrate, said second water vapor barrier layer comprising a thermoplastic polymer, and d) forming a vacuum coating layer on said first water vapor barrier layer to obtain the coated paper or paperboard product.

IPC Classes  ?

  • D21H 19/84 - Paper comprising more than one coating on both sides of the substrate
  • B32B 27/10 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of paper or cardboard
  • B32B 27/32 - Layered products essentially comprising synthetic resin comprising polyolefins
  • D21H 19/08 - Metal coatings applied as vapour, e.g. in vacuum
  • D21H 19/10 - Coatings without pigments
  • D21H 19/56 - Macromolecular organic compounds or oligomers thereof obtained by reactions only involving carbon-to-carbon unsaturated bonds
  • D21H 19/62 - Macromolecular organic compounds or oligomers thereof obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
  • C23C 14/00 - Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
  • C23C 16/00 - Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes

76.

A METHOD FOR THE MANUFACTURING OF A DISPERSION COATED PAPERBOARD WITH AT LEAST TWO LAYERS OF PHA HAVING DIFFERENT CRISTALLINITY AND A COATED PAPERBOARD

      
Application Number IB2023062877
Publication Number 2024/141850
Status In Force
Filing Date 2023-12-18
Publication Date 2024-07-04
Owner STORA ENSO OYJ (Finland)
Inventor
  • Cunha, Gisela
  • Backfolk, Kaj
  • Nyflött, Åsa

Abstract

A dispersion coated paperboard (1) for food packaging applications, which coated paperboard comprising a paper or paperboard substrate (2) having a first side (2a) and a second side (2b). The paper coated paperboard (1) further comprising a PHA dispersion coated first layer (3) which is coated on at least one side (2a, 2b) of the paperboard substrate (2); and a PHA dispersion coated second layer (4) which is coated on at least one of the first layer (3), wherein the crystallinity of the second layer (4) is higher than the crystallinity of first layer (3).

IPC Classes  ?

  • D21H 19/82 - Paper comprising more than one coating superposed
  • B32B 27/10 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of paper or cardboard
  • B32B 29/00 - Layered products essentially comprising paper or cardboard
  • C09D 167/00 - Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chainCoating compositions based on derivatives of such polymers
  • D21H 27/30 - Multi-ply

77.

BLANK CONFIGURED TO BE FOLDED INTO A PROTECTION STRUCTURE, AND A PROTECTION STRUCTURE FORMED BY SUCH A BLANK

      
Application Number IB2023063036
Publication Number 2024/141875
Status In Force
Filing Date 2023-12-20
Publication Date 2024-07-04
Owner STORA ENSO OYJ (Finland)
Inventor Grendas, Mariusz

Abstract

The disclosure relates to a blank, and a protection structure formed by such a blank, wherein the blank is configured to be folded into a protection structure having buffer sections, the blank comprising a longitudinally extending central main panel, a first longitudinally extending side panel being foldably connected to a first longitudinal side of the central main panel along a first longitudinally extending main fold line, a second longitudinally extending side panel, wherein the first side panel is provided with a first, a second, and a third internal transversally separated and longitudinally extending fold line, wherein the internal fold lines together with the first longitudinally extending main fold line form a first, a second, and a third intermediate portion whereby the first, second, and third intermediate portions are configured to be wrapped around at least one longitudinally extending separately formed reinforcement beam, wherein the second side panel is configured to be folded relative to the central main panel onto the first side panel.

IPC Classes  ?

  • B65D 81/02 - Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage
  • B65D 5/50 - Internal supporting or protecting elements for contents

78.

IMPROVED BONDING RESIN

      
Application Number IB2023062860
Publication Number 2024/134445
Status In Force
Filing Date 2023-12-18
Publication Date 2024-06-27
Owner STORA ENSO OYJ (Finland)
Inventor
  • Zafar, Ashar
  • Areskogh, Dimitri
  • Pham, Huynh Tram Anh

Abstract

The present invention relates to a bonding resin useful for example in the manufacture of insulation, such as mineral wool insulation or glass wool insulation. The invention also relates to a method for preparing the bonding resin and to the use thereof.

IPC Classes  ?

79.

IMPROVED BONDING RESIN

      
Application Number IB2023062865
Publication Number 2024/134449
Status In Force
Filing Date 2023-12-18
Publication Date 2024-06-27
Owner STORA ENSO OYJ (Finland)
Inventor
  • Zafar, Ashar
  • Areskogh, Dimitri
  • Pham, Huynh Tram Anh

Abstract

The present invention relates to a bonding resin useful for example in the manufacture of insulation, such as mineral wool insulation or glass wool insulation. The invention also relates to a method for preparing the bonding resin and to the use thereof.

IPC Classes  ?

  • C09J 197/00 - Adhesives based on lignin-containing materials
  • C08J 3/24 - Crosslinking, e.g. vulcanising, of macromolecules
  • C08K 5/16 - Nitrogen-containing compounds
  • C08L 63/00 - Compositions of epoxy resinsCompositions of derivatives of epoxy resins
  • C08L 97/00 - Compositions of lignin-containing materials
  • C09J 163/00 - Adhesives based on epoxy resinsAdhesives based on derivatives of epoxy resins

80.

METHOD FOR MANUFACTURING A BARRIER FILM, AND A BARRIER FILM

      
Application Number 18555326
Status Pending
Filing Date 2022-04-13
First Publication Date 2024-06-27
Owner Stora Enso OYJ (Finland)
Inventor
  • Backfolk, Kaj
  • Lyytikäinen, Katja
  • Heiskanen, Isto
  • Nordström, Tommi
  • Kauppi, Anna

Abstract

The present invention relates to a process for manufacturing a barrier film, wherein the method comprises:— providing an aqueous suspension comprising at least 70 weight-% highly refined cellulose pulp having an SR value of 70-95 and having a content of fibers having a length >0.2 mm of at least 10 million fibers per gram based on dry weight:— forming a wet web:— dewatering and/or drying to form a substrate:— calendering said substrate in at least one soft calender nip:— providing said substrate with at least one first layer of a barrier chemical to form a coated substrate, wherein each first layer has a coat weight of 0.5-5 gsm, and wherein a total coat weight on of the first layers is ≤8 gsm, and— drying to form said barrier film having a thickness of <50 μm. The invention relates also to a barrier film, a barrier film laminate with a polymer layer and a packaging material comprising the barrier film.

IPC Classes  ?

  • D21H 19/12 - Coatings without pigments applied as a solution using water as the only solvent, e.g. in the presence of acid or alkaline compounds
  • B29C 43/24 - Calendering
  • B29K 1/00 - Use of cellulose, modified cellulose or cellulose derivatives, e.g. viscose, as moulding material
  • D21H 11/18 - Highly hydrated, swollen or fibrillatable fibres
  • D21H 19/72 - Coated paper characterised by the paper substrate
  • D21H 25/06 - Physical treatment, e.g. heating or irradiating of impregnated or coated paper

81.

IMPROVED BONDING RESIN

      
Application Number IB2023062867
Publication Number 2024/134451
Status In Force
Filing Date 2023-12-18
Publication Date 2024-06-27
Owner STORA ENSO OYJ (Finland)
Inventor
  • Zafar, Ashar
  • Areskogh, Dimitri
  • Pham, Huynh Tram Anh

Abstract

The present invention relates to a bonding resin useful for example in the manufacture of insulation, such as mineral wool insulation or glass wool insulation. The invention also relates to a method for preparing the bonding resin and to the use thereof.

IPC Classes  ?

  • C09J 179/00 - Adhesives based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen, with or without oxygen, or carbon only, not provided for in groups
  • C07D 307/44 - Furfuryl alcohol
  • C07D 307/48 - Furfural
  • C08J 3/24 - Crosslinking, e.g. vulcanising, of macromolecules
  • C08K 5/07 - AldehydesKetones
  • C08K 5/16 - Nitrogen-containing compounds
  • C09J 161/00 - Adhesives based on condensation polymers of aldehydes or ketonesAdhesives based on derivatives of such polymers

82.

FRACTIONATION OF CRUDE TALL OIL

      
Application Number IB2023062873
Publication Number 2024/134454
Status In Force
Filing Date 2023-12-18
Publication Date 2024-06-27
Owner STORA ENSO OYJ (Finland)
Inventor
  • Kavakka, Jari
  • Torssell, Staffan

Abstract

The present invention is directed to fractionation of crude tall oil, which originates from the Kraft process black liquor. In the method according to the present invention, at least two strongly basic anion exchange resins are used to efficiently separate fractions from the crude tall oil.

IPC Classes  ?

  • C11B 13/00 - Recovery of fats, fatty oils or fatty acids from waste materials
  • B01D 15/36 - Selective adsorption, e.g. chromatography characterised by the separation mechanism involving ionic interaction, e.g. ion-exchange, ion-pair, ion-suppression or ion-exclusion
  • B01J 41/05 - Processes using organic exchangers in the strongly basic form
  • D21C 11/00 - Regeneration of pulp liquors
  • C10G 3/00 - Production of liquid hydrocarbon mixtures from oxygen-containing organic materials, e.g. fatty oils, fatty acids
  • C10L 1/188 - Carboxylic acidsSalts thereof

83.

A METHOD FOR MANUFACTURING A PHA COATED FIBER-BASED SUBSTRATE WITH A FIRST AND A SECOND PHA AQUEOUS COATING COMPOSITIONS AND A FIBER-BASED SUBSTRATE COATED WITH THE METHOD

      
Application Number IB2023062876
Publication Number 2024/134456
Status In Force
Filing Date 2023-12-18
Publication Date 2024-06-27
Owner STORA ENSO OYJ (Finland)
Inventor
  • Heiskanen, Isto
  • Backfolk, Kaj
  • Lyytikäinen, Katja
  • Nyflött, Åsa

Abstract

The present invention relates to a method for manufacturing a PHA (polyhydroxyalkanoate) coated fiber-based substrate, said method comprising the steps of: a) providing a fiber-based substrate having a first main surface and a second main surface; b) forming a first PHA layer by applying a foamed first aqueous coating composition comprising a first PHA and a foaming agent on the first main surface and drying the foamed first aqueous coating composition, wherein the foamed first aqueous coating composition is a foam having a foam density of 0.75 g/cm3 or less; c) forming a second PHA layer by applying a second aqueous coating composition comprising a second PHA on the first PHA layer and drying the second aqueous coating composition. The present invention further relates to a PHA coated fiber-based substrate and a packaging container comprising a PHA coated fiber-based substrate.

IPC Classes  ?

  • D21H 19/82 - Paper comprising more than one coating superposed
  • B32B 27/10 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of paper or cardboard
  • B32B 29/00 - Layered products essentially comprising paper or cardboard
  • C09D 167/00 - Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chainCoating compositions based on derivatives of such polymers
  • D21H 27/30 - Multi-ply

84.

A TRAY AND A METHOD FOR FORMING A TRAY

      
Application Number IB2023062475
Publication Number 2024/127211
Status In Force
Filing Date 2023-12-11
Publication Date 2024-06-20
Owner STORA ENSO OYJ (Finland)
Inventor Aalto, Petri

Abstract

A tray formed from a blank (100) comprising: a bottom panel (102); two opposing longitudinal side wall panels (104a-b); two opposing transversal side wall panels (106a-b); two opposing longitudinal rim panels (108a-b); and two opposing transversal rim panels (110a-b), wherein the side wall panels (104a-b, 106a-b) are folded upwardly relative to the bottom panel (102) to form a respective side wall of the tray, and thereby forming corners in geometrical intersections between the adjacent side wall panels, wherein the rim panels are folded outwardly or inwardly relative to the respective side wall to form a circumferential rim of the tray, and wherein, at at least a first, second third and fourth corner of the tray, one or more plastic pieces is/are attached at least to a first corner portion of the two longitudinal rim panels and to a first and second corner portion, respectively, of one of the two transversal rim panels such that said rim panels are interconnected at the first and second corner by said plastic film. The disclosure also relates to a method for forming a tray.

IPC Classes  ?

  • B65D 5/20 - Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form
  • B31B 50/60 - Uniting opposed surfaces or edgesTaping
  • B31B 50/72 - Uniting opposed surfaces or edgesTaping by applying and securing strips or sheets
  • B65D 5/42 - Details of containers or of foldable or erectable container blanks
  • B65D 5/56 - Linings or internal coatings

85.

RAW EDGE TAPE COMPRISING MFC AND POLYMERIC OUTER LAYERS FOR PAPERBOARD CONTAINERS

      
Application Number IB2023062393
Publication Number 2024/127189
Status In Force
Filing Date 2023-12-08
Publication Date 2024-06-20
Owner STORA ENSO OYJ (Finland)
Inventor Ovaska, Sami-Seppo

Abstract

The present invention relates to raw edge tape for paperboard containers, said raw edge tape comprising: a substrate layer having a first main surface and a second main surface, a first polymeric outer layer disposed at the first main surface of the substrate layer, and a second polymeric outer layer disposed at the second main surface of the substrate layer, wherein at least said first polymeric outer layer is heat sealable, characterized in that the substrate layer comprises at least 50 wt% of a highly refined cellulose composition having a Schopper-Riegler (SR) number in the range of 50-100 as determined by standard ISO 5267-1, based on the total dry weight of the substrate layer. The present invention relates to paperboard webs, blanks, and containers comprising such a raw edge tape attached thereto.

IPC Classes  ?

  • B29C 48/08 - Flat, e.g. panels flexible, e.g. films
  • B32B 7/12 - Interconnection of layers using interposed adhesives or interposed materials with bonding properties
  • B32B 27/30 - Layered products essentially comprising synthetic resin comprising vinyl resinLayered products essentially comprising synthetic resin comprising acrylic resin
  • B32B 27/32 - Layered products essentially comprising synthetic resin comprising polyolefins
  • B32B 27/34 - Layered products essentially comprising synthetic resin comprising polyamides
  • B32B 27/36 - Layered products essentially comprising synthetic resin comprising polyesters
  • D21H 11/18 - Highly hydrated, swollen or fibrillatable fibres

86.

StoraEnso

      
Application Number 019043100
Status Registered
Filing Date 2024-06-19
Registration Date 2024-10-19
Owner Stora Enso Oyj (Finland)
NICE Classes  ?
  • 01 - Chemical and biological materials for industrial, scientific and agricultural use
  • 16 - Paper, cardboard and goods made from these materials
  • 17 - Rubber and plastic; packing and insulating materials
  • 19 - Non-metallic building materials
  • 42 - Scientific, technological and industrial services, research and design
  • 44 - Medical, veterinary, hygienic and cosmetic services; agriculture, horticulture and forestry services

Goods & Services

Chemicals used in industry; Cellulose pulp; paper pulp; Wood pulp; Pulp for use in the manufacture of board; Activated carbons; carbon made of lignin; raw material in powder form to battery cell producers; lignin; Powdered lignin for energy storage; Raw chemicals; Raw chemicals in the form of powders, liquids or pastes; Raw chemicals in the form of powders, liquids or pastes to battery cell producers; Chemicals for the battery industry. Paper and board; laminated paper and board; Bags and articles for packaging, wrapping and storage, of paper, cardboard or plastics; liquid packaging board; Corrugated cardboard; Industrial paper and cardboard; Packing containers of cardboard; Cardboard packaging boxes in collapsible form; Packing [cushioning, stuffing] materials of paper or cardboard; Packaging materials made of cardboard. Foam for use as heat insulation; Foam for use as heat shields; Foam for use in sound absorption; Foam for use as an insulating material; Foam insulation for use in building and construction; Molded foam for packing; Foam in the form of sheets and boards; Foam for use as a cushioning in packaging; Packing foam in sheet form; Rubber packaging; Plastic materials in the form of mouldings for use as cushioning materials in packaging; Plastic film other than for wrapping; Cellulose acetate film used as packing material [other than for wrapping]; Foam rubber. Building materials (non-metallic); sawn timber; Building materials of wood; Timber boarding; Wood panelling; Timber laminates; Wood siding; Manufactured timber; Moulded wood; Planks of wood for building; Boards made of wood particles; Building components of wood; Fibreboard for building. Industrial analysis and research services; design and development of computer hardware and software; Design of buildings; Design of industrial buildings; Science and technology services. Agriculture, horticulture and forestry services.

87.

StoraEnso

      
Application Number 019042632
Status Registered
Filing Date 2024-06-18
Registration Date 2024-10-19
Owner Stora Enso Oyj (Finland)
NICE Classes  ?
  • 01 - Chemical and biological materials for industrial, scientific and agricultural use
  • 16 - Paper, cardboard and goods made from these materials
  • 17 - Rubber and plastic; packing and insulating materials
  • 19 - Non-metallic building materials
  • 42 - Scientific, technological and industrial services, research and design
  • 44 - Medical, veterinary, hygienic and cosmetic services; agriculture, horticulture and forestry services

Goods & Services

Chemicals used in industry; Cellulose pulp; paper pulp; Wood pulp; Pulp for use in the manufacture of board; Activated carbons; carbon made of lignin; raw material in powder form to battery cell producers; lignin; Powdered lignin for energy storage; Raw chemicals; Raw chemicals in the form of powders, liquids or pastes; Raw chemicals in the form of powders, liquids or pastes to battery cell producers; Chemicals for the battery industry. Paper and board; laminated paper and board; Bags and articles for packaging, wrapping and storage, of paper, cardboard or plastics; liquid packaging board; Corrugated cardboard; Industrial paper and cardboard; Packing containers of cardboard; Cardboard packaging boxes in collapsible form; Packing [cushioning, stuffing] materials of paper or cardboard; Packaging materials made of cardboard. Foam for use as heat insulation; Foam for use as heat shields; Foam for use in sound absorption; Foam for use as an insulating material; Foam insulation for use in building and construction; Molded foam for packing; Foam in the form of sheets and boards; Foam for use as a cushioning in packaging; Packing foam in sheet form; Rubber packaging; Plastic materials in the form of mouldings for use as cushioning materials in packaging; Plastic film other than for wrapping; Cellulose acetate film used as packing material [other than for wrapping]; Foam rubber. Building materials (non-metallic); sawn timber; Building materials of wood; Timber boarding; Wood panelling; Timber laminates; Wood siding; Manufactured timber; Moulded wood; Planks of wood for building; Boards made of wood particles; Building components of wood; Fibreboard for building. industrial analysis and research services; design and development of computer hardware and software; Design of buildings; Design of industrial buildings; Science and technology services. Agriculture, horticulture and forestry services.

88.

METHOD AND DEVICE FOR EVALUATING THE PERMEABILITY OF A SAMPLE

      
Application Number 18552270
Status Pending
Filing Date 2022-03-25
First Publication Date 2024-06-13
Owner Stora Enso OYJ (Finland)
Inventor
  • Maldzius, Robertas
  • Sidaravicius, Jonas
  • Lozovski, Tadeus
  • Backfolk, Kaj
  • Heiskanen, Isto

Abstract

The present invention relates to an arrangement for determining the permeability of a sample, said arrangement comprising a source of fluid medium arranged such that at least a fraction of said medium can be brought into contact with a first surface of said sample to be tested; means for measuring the electrical properties at a second surface of said sample, wherein the second surface is opposite said first surface of said sample; and a controller for recording said electrical properties, and for determining the transmission rate of the fluid medium through the sample based on the recorded electrical properties.

IPC Classes  ?

  • G01N 15/08 - Investigating permeability, pore volume, or surface area of porous materials

89.

METHOD FOR MANUFACTURING A BARRIER FILM, AND A BARRIER FILM

      
Application Number 18555328
Status Pending
Filing Date 2022-04-13
First Publication Date 2024-06-13
Owner Stora Enso OYJ (Finland)
Inventor
  • Backfolk, Kaj
  • Heiskanen, Isto
  • Krätschell, Matthias
  • Land Hensdal, Cecilia

Abstract

The present invention relates to a process for manufacturing a barrier film, wherein the method comprises: —providing an aqueous suspension comprising at least 70 weight-% highly refined cellulose pulp having an SR value of 70-95 and having a content of fibers having a length>0.2 mm of at least 10 million fibers per gram based on dry weight: —forming a wet web; —dewatering and/or drying to form a substrate; —calendering said substrate in at least a first calender nip and a second calender nip; —providing said substrate with at least one first layer of a barrier chemical to form a coated substrate, wherein each first layer has a coat weight of 0.5-5 gsm, and wherein a total coat weight on of the first layers is ≤8 gsm, and—drying to form said barrier film having a thickness of <50 μm. The invention relates also to a barrier film, a barrier film laminate with a polymer layer and a packaging material comprising the barrier film.

IPC Classes  ?

  • D21H 19/12 - Coatings without pigments applied as a solution using water as the only solvent, e.g. in the presence of acid or alkaline compounds
  • B29C 43/24 - Calendering
  • B29K 1/00 - Use of cellulose, modified cellulose or cellulose derivatives, e.g. viscose, as moulding material
  • D21H 11/18 - Highly hydrated, swollen or fibrillatable fibres
  • D21H 19/72 - Coated paper characterised by the paper substrate
  • D21H 25/06 - Physical treatment, e.g. heating or irradiating of impregnated or coated paper

90.

NATURA SISU

      
Application Number 019039006
Status Pending
Filing Date 2024-06-10
Owner Stora Enso Oyj (Finland)
NICE Classes  ? 16 - Paper, cardboard and goods made from these materials

Goods & Services

Paper and cardboard; Cardboard; White paperboard; Colorboard [colored paperboard]; Packaging materials made of cardboard; Industrial paper and cardboard; Cardboard packaging; Bags and articles for packaging, wrapping and storage of paper, cardboard or plastics; Liquid packaging board; Paper and cardboard for production of foodstuff packaging.

91.

NATURA LIFE

      
Application Number 019039028
Status Pending
Filing Date 2024-06-10
Owner Stora Enso Oyj (Finland)
NICE Classes  ? 16 - Paper, cardboard and goods made from these materials

Goods & Services

Paper and cardboard; Cardboard; White paperboard; Colorboard [colored paperboard]; Packaging materials made of cardboard; Industrial paper and cardboard; Cardboard packaging; Bags and articles for packaging, wrapping and storage of paper, cardboard or plastics; Liquid packaging board; Paper and cardboard for production of foodstuff packaging.

92.

APPARATUS AND METHOD FOR PREPARING AND ASSEMBLING TUBULAR CONTAINER BLANKS

      
Application Number IB2023062050
Publication Number 2024/116105
Status In Force
Filing Date 2023-11-30
Publication Date 2024-06-06
Owner STORA ENSO OYJ (Finland)
Inventor Kaartinaho, Pasi

Abstract

An apparatus and method for preparation of tubular container blanks (5; 5a; 5b) comprises a blank supply (1; 1a; 1b), a folding platform (2) comprising pivotable folding arms (21; 21'; 21") and a blank connecting device, and a picking arrangement (3) for moving blanks from the blank supply (1; la; lb) to the folding platform (2). The folding platform (2) comprises a folding area (2a) and a temporary storage area (2b), the temporary storage area allowing a pre-folded tubular container blank (5; 5a; 5b) to be stored in alignment with a tubular container blank (5; 5a, 5b) arranged on the folding area (2a). The picking arrangement (3) is further arranged to move tubular container blanks (5; 5a; 5b) from the folding area (2a) to the temporary storage area (2b) and to bring together tubular container blanks (5; 5a; 5b) arranged on the temporary storage area (2b) and the folding area (2a), and wherein the blank connecting device (25) is arranged to connect such brought together blanks by adhesion.

IPC Classes  ?

  • B31B 50/26 - Folding sheets, blanks or webs
  • B31B 50/00 - Making rigid or semi-rigid containers, e.g. boxes or cartons
  • B65D 5/32 - Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper having bodies formed by folding and interconnecting two or more blanks

93.

BLANK CONFIGURED TO BE ERECTED INTO A PACKAGE, A PACKAGE FORMED BY SUCH A BLANK, AND A METHOD OF ERECTING A BLANK

      
Application Number IB2023062070
Publication Number 2024/116113
Status In Force
Filing Date 2023-11-30
Publication Date 2024-06-06
Owner STORA ENSO OYJ (Finland)
Inventor Axelsson, Daniel

Abstract

The disclosure relates to a blank (1) configured to be erected into a package (200), a package (200) formed by such a blank (1), and a method of erecting a blank (1), wherein the blank (1) is configured to be erected into a package (200) having reinforced corners, the blank (1) comprising a plurality of main panels (10, 20, 30, 40) arranged one after another along a longitudinal direction (L), an attachment tab (60), two sets of reinforcement panels (52a-c, 53a-c), wherein the respective set of reinforcement panels (52a-c, 53a-c) includes at least an inner reinforcement panel (52a, 53a) and an outer reinforcement panel (52b, 53b), wherein the outer reinforcement panel (52b, 52b) is configured to be attached to another reinforcement panel (52a, 53a) or to the respective second and third main panel (20, 30) thereby keeping the reinforcement panels in the folded position, and, wherein the respective inner reinforcement panel (52a, 53a), and the second (20), respectively the third (30) main panel is provided with a perforation (25, 35) extending at least partly from the respective inner reinforcement panel (52a, 53a) and thereafter extending between a first and second longitudinally extending edge of the respective main panel thereby allowing a cover portion of the package to be separated from a tray portion of the package.

IPC Classes  ?

  • B65D 5/44 - Integral, inserted or attached portions forming internal or external fittings
  • B65D 5/02 - Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding or erecting a single blank to form a tubular body with or without subsequent folding operations, or the addition of separate elements, to close the ends of the body
  • B65D 5/54 - Lines of weakness to facilitate opening of container or dividing it into separate parts by cutting or tearing

94.

METHOD FOR MANUFACTURING A CELLULOSE-BASED LAMINATE COMPRISING A MINERAL-BASED LAYER

      
Application Number IB2023059130
Publication Number 2024/105466
Status In Force
Filing Date 2023-09-14
Publication Date 2024-05-23
Owner STORA ENSO OYJ (Finland)
Inventor
  • Backfolk, Kaj
  • Heiskanen, Isto

Abstract

The present invention relates to a method for manufacturing a cellulose-based laminate comprising a mineral-based layer in a paper-making machine, the method comprising: a) forming a first web layer on a first wire; b) forming a second web layer comprising 60-95 % by dry weight of a particulate mineral and 5-40 % by dry weight of a binder, on a second wire; and c) laminating the second web layer and the first web layer to obtain a laminate web; and d) dewatering, and optionally drying, the formed laminate web to obtain a cellulose-based laminate comprising a mineral-based layer.

IPC Classes  ?

  • B32B 29/04 - Layered products essentially comprising paper or cardboard next to a particulate layer
  • B32B 37/20 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with all layers existing as coherent layers before laminating involving the assembly of continuous webs only
  • C08J 5/18 - Manufacture of films or sheets
  • C08B 15/02 - OxycelluloseHydrocelluloseCellulose hydrate
  • C08B 15/08 - Fractionation of cellulose, e.g. separation of cellulose crystallites
  • C08K 3/22 - OxidesHydroxides of metals
  • C08K 3/26 - CarbonatesBicarbonates
  • C08K 3/30 - Sulfur-, selenium-, or tellurium-containing compounds
  • C08K 3/36 - Silica
  • C08L 1/02 - CelluloseModified cellulose
  • D21H 11/18 - Highly hydrated, swollen or fibrillatable fibres
  • D21H 19/52 - CelluloseDerivatives thereof

95.

METHOD FOR MANUFACTURING A CELLULOSE-BASED LAMINATE COMPRISING HIGHLY REFINED CELLULOSE

      
Application Number IB2023059128
Publication Number 2024/105465
Status In Force
Filing Date 2023-09-14
Publication Date 2024-05-23
Owner STORA ENSO OYJ (Finland)
Inventor
  • Backfolk, Kaj
  • Heiskanen, Isto

Abstract

The present invention relates to a method for manufacturing a cellulose-based laminate comprising highly refined cellulose (HRC) in a paper-making machine, the method comprising: a) forming a first web layer on a first wire; b) forming a second web layer by applying a second suspension comprising highly refined cellulose (HRC) on a second wire, wherein the second suspension has a dry solids content of at least 0.5 wt% and the second suspension is applied directly on the second wire using a curtain applicator; c) laminating the second web layer and the first web layer to obtain a laminate web; and d) dewatering, and optionally drying, the formed laminate web to obtain a cellulose-based laminate comprising HRC.

IPC Classes  ?

  • B32B 29/02 - Layered products essentially comprising paper or cardboard next to a fibrous or filamentary layer
  • B32B 37/20 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with all layers existing as coherent layers before laminating involving the assembly of continuous webs only
  • C08J 5/18 - Manufacture of films or sheets
  • D21H 11/18 - Highly hydrated, swollen or fibrillatable fibres
  • D21H 27/30 - Multi-ply
  • C08B 15/02 - OxycelluloseHydrocelluloseCellulose hydrate
  • C08B 15/08 - Fractionation of cellulose, e.g. separation of cellulose crystallites
  • C08L 1/02 - CelluloseModified cellulose
  • C09D 101/02 - CelluloseModified cellulose
  • D21H 19/12 - Coatings without pigments applied as a solution using water as the only solvent, e.g. in the presence of acid or alkaline compounds

96.

METHOD FOR MANUFACTURING A FILM COMPRISING HIGHLY REFINED CELLULOSE FIBERS

      
Application Number IB2023060911
Publication Number 2024/100490
Status In Force
Filing Date 2023-10-30
Publication Date 2024-05-16
Owner STORA ENSO OYJ (Finland)
Inventor
  • Kylliäinen, Pekka
  • Heiskanen, Isto

Abstract

The present invention relates to a method for manufacturing a film comprising highly refined cellulose fibers in a paper-making machine, the method comprisin the steps of: a) forming a wet web by applying a pulp suspension comprising at least 50% b dry weight of highly refined cellulose fibers having a Schopper-Riegler (SR) valu in the range of 80-100 from a headbox onto a moving wire and partially dewateri the web on the wire; and b) feeding the partially dewatered web from the wire into a dewatering nip formed between a suction roll and a lump breaker roll to further dewater the wet web, c) optionally further dewatering the web from the dewatering nip in a press section and drying the web in a drying section to obtain a film comprising the highly refined cellulose fibers.

IPC Classes  ?

  • C08J 5/18 - Manufacture of films or sheets
  • D21F 2/00 - Transferring continuous webs from wet ends to press sections
  • D21F 3/08 - Pressure rolls
  • D21F 3/10 - Suction rolls, e.g. couch rolls
  • D21H 11/18 - Highly hydrated, swollen or fibrillatable fibres

97.

MULTILAYER BARRIER FILM, METHOD OF MANUFACTURING SUCH FILM, AND A PAPER OR PAPERBOARD BASED PACKAGING MATERIAL COMPRISING SUCH FILM

      
Application Number IB2023061256
Publication Number 2024/100566
Status In Force
Filing Date 2023-11-08
Publication Date 2024-05-16
Owner STORA ENSO OYJ (Finland)
Inventor
  • Kauppi, Anna
  • Korvenniemi, Juha
  • Heiskanen, Isto
  • Backfolk, Kaj

Abstract

The present invention relates to a multilayer barrier film for a paper or paperboard packaging material, said barrier film comprises a first layer comprising a furnish comprising at least 70 wt-% of highly refined cellulose based on the total fiber content of the first layer, a second layer comprising a furnish comprising cellulosic fibers and less than 50 wt-% of highly refined cellulose based on the total fiber content of the second layer and more than 10 wt-% of filler, wherein the multilayer barrier film has a tear index GM above 4.5. The present invention further relates to a paper and paperboard based packaging material comprising such multilayer barrier film and to methods for manufacturing such multilayer barrier film.

IPC Classes  ?

  • C08J 5/18 - Manufacture of films or sheets
  • B32B 27/10 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of paper or cardboard
  • B32B 29/00 - Layered products essentially comprising paper or cardboard
  • D21H 11/18 - Highly hydrated, swollen or fibrillatable fibres
  • D21H 27/38 - Multi-ply at least one of the sheets having a fibrous composition differing from that of other sheets

98.

BARRIER FILM FOR PACKAGING MATERIAL

      
Application Number IB2023061255
Publication Number 2024/100565
Status In Force
Filing Date 2023-11-08
Publication Date 2024-05-16
Owner STORA ENSO OYJ (Finland)
Inventor
  • Kauppi, Anna
  • Korvenniemi, Juha
  • Heiskanen, Isto
  • Backfolk, Kaj

Abstract

The present invention relates to a barrier film for a paper or paperboard-based packaging material, said barrier film comprising cellulosic fibers and highly refined cellulose wherein the barrier film comprises less than 50 wt-% of highly refined cellulose based on the total fiber content and the barrier film having an air permeance above 2000 pm/Pas and a geometric mean tensile index above 70 Nm/g. The invention also relates to a paper or paperboard-based packaging material comprising the barrier film and a method for producing said film.

IPC Classes  ?

  • C08J 5/18 - Manufacture of films or sheets
  • B32B 27/10 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of paper or cardboard
  • B32B 29/00 - Layered products essentially comprising paper or cardboard
  • C08L 1/02 - CelluloseModified cellulose
  • D21H 11/18 - Highly hydrated, swollen or fibrillatable fibres
  • D21H 27/38 - Multi-ply at least one of the sheets having a fibrous composition differing from that of other sheets

99.

MULTILAYER BARRIER FILM, METHOD FOR MANUFACTURING MULTILAYER BARRIER FILM, AND PAPER OR PAPERBOARD BASED PACKAGING MATERIAL COMPRISING MULTILAYER BARRIER FILM

      
Application Number IB2023061258
Publication Number 2024/100568
Status In Force
Filing Date 2023-11-08
Publication Date 2024-05-16
Owner STORA ENSO OYJ (Finland)
Inventor
  • Kauppi, Anna
  • Heiskanen, Isto
  • Backfolk, Kaj

Abstract

The present invention relates to a multilayer barrier film for a paper or paperboard packaging material, said barrier film comprises a first layer comprising a furnish comprising at least 70 wt-% of highly refined cellulose based on the total fiber content of the first layer, a second layer comprising a furnish comprising cellulosic fibers and less than 50 wt-% of highly refined cellulose based on the total fiber content of the second layer wherein the multilayer barrier film has an air permeance above 1000 pm/Pas and a tear index GM above 4.5. The present invention further relates to a paper and paperboard based packaging material comprising such multilayer barrier film and to methods for manufacturing such multilayer barrier film.

IPC Classes  ?

  • C08J 5/18 - Manufacture of films or sheets
  • B32B 27/10 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of paper or cardboard
  • B32B 29/00 - Layered products essentially comprising paper or cardboard
  • D21H 11/18 - Highly hydrated, swollen or fibrillatable fibres
  • D21H 27/38 - Multi-ply at least one of the sheets having a fibrous composition differing from that of other sheets

100.

PUNCHING DIE COMPRISING SEPARATE CUTTING MODULES

      
Application Number IB2023061105
Publication Number 2024/095219
Status In Force
Filing Date 2023-11-03
Publication Date 2024-05-10
Owner STORA ENSO OYJ (Finland)
Inventor
  • Liang, Wei
  • Xia, Jinshuang
  • Li, Xinjiang

Abstract

A punching die (1), characterized in that it comprises: an upper die assembly (10) comprising an upper die plate (110) and a cutting seat (120) fixed to the upper die plate (110); and a lower die assembly (20) comprising a lower die plate (210) and a supporting plate (220) fixed on the lower die plate (210); wherein the lower die assembly (20) further comprises a plurality of separate cutting modules (30), each of the cutting modules corresponding to one unit of a piece to be cut (90) located between the upper die assembly (10) and the lower die assembly (20), the cutting modules (30) each comprising a fixing plate for cutting plate (310) which is slidably supported on the supporting plate (220), and a cutting plate (320) which is fixed on the fixing plate for cutting plate (310) and on which positioned a blade (330).

IPC Classes  ?

  • B21D 37/12 - Particular guiding equipmentSpecial arrangements for interconnection or cooperation of dies
  • B21D 28/02 - Punching blanks or articles with or without obtaining scrapNotching
  • B21D 28/14 - Dies
  • B21D 37/02 - Die constructions enabling assembly of the die parts in different ways
  • B21D 37/10 - Die setsPillar guides
  • B26F 1/44 - Cutters thereforDies therefor
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