The present invention relates to a process for the production of an organic acid from a lignocellulosic feedstock. The process is integrated with a pulp mill and comprises the steps: a) providing a lignocellulosic feedstock; b) obtaining an alkaline liquor from the pulp mill; c) pre-treating the lignocellulosic feedstock with the alkaline liquor, thereby obtaining a pretreated cellulosic feed and a black liquor; d) obtaining calcium oxide from the pulp mill; e) subjecting the pretreated cellulosic feed from step c) to enzymatic hydrolysis, thereby obtaining a saccharide feed; f) subjecting the saccharide feed from step e) to microbial fermentation using the calcium oxide from step d) as a neutralising agent, thereby obtaining an organic acid calcium salt; g) treating the organic acid calcium salt with sulfuric acid, thereby obtaining gypsum and the organic acid; h) optionally isolating lignin from the black liquor obtained in step c), thereby obtaining lignin and weak black liquor; and i) returning the black liquor obtained in step c) and/or the weak black liquor obtained in step h) to the pulp mill for integration with the pulp mill chemical recovery process; wherein steps e) and f) are performed either sequentially or simultaneously.
The present invention relates to a method of producing a nanofibrillated cellulose (NFC), the nanofibrillated cellulose product obtained and the use of the nanofibrillated cellulose product. The method comprises the steps of: Providing cellulosic fibres dispersed in water; Solvent- exchanging water in the fibres to an organic solvent, such as alcohol, suitably ethanol or isopropanol;Impregnating the fibres with a solution comprising a halogenated aliphatic acid having more than 2 carbon atoms;Heat-treating the impregnated fibres at a temperature of more than 50°C in an alkaline solution comprising an organic solvent, which solution is optionally aqueous, to carboxyalkylatethe fibres;Washing the fibres;Converting the carboxyl groups their alkali metal counter-ion form;Optionally filtering the fibres; Dispersing the fibres in water;Mechanically disintegrating the fibres to provide the NFC product.
The present invention relates to lignin-containing compositions comprising: 0 to 50 percent by weight of lignin; 0 to 50 percent by weight of a liquid C2-C4polyol; and 10 to 50 percent by weight of an acrylic resin; wherein the percentages by weight are expressed relative to the total dry weight of the composition, and wherein the total dry weight of the composition amounts to 100 percent. The present invention further relates to processes for sealing joints or coating surfaces using such a composition. Moreover, the present invention relates to joints sealed and surfaces coated using such a composition, as well as vehicles comprising such sealed joints and coated surfaces.
C09D 133/06 - Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
C09J 133/06 - Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
C09J 197/00 - Adhesives based on lignin-containing materials
4.
METHOD OF PRODUCING SHAPE-RETAINING CELLULOSE PRODUCTS, AND SHAPE-RETAINING CELLULOSE PRODUCTS THEREFROM
The present invention concerns a method of producing a shape-retaining cellulose product(s) comprising the following steps: a)providing a cellulose dispersion comprising a cellulose material and water; b)forming the cellulose dispersion to selected shape(s); c)oxidizing the cellulose dispersion with periodate; d)freezing the oxidized cellulose dispersion; e)thawing the oxidized cellulose dispersion, thereby forming a cross-linked cellulose dispersion; f)optionally performing a solvent exchange on the cross-linked cellulose dispersion; g)removing water and/or solvent from the cross-linked cellulose dispersion whilst the water and/or solvent of the dispersion is in the liquid phase, thereby providing the shape-retaining cellulose product(s), wherein step b) is performed prior to step c), simultaneously with step c) or after step c). The invention also concerns shape-retaining cellulose products obtained by such a method and uses for such products.
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
B01J 13/00 - Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided forMaking microcapsules or microballoons
The present application concerns nanocellulose aerogel having tailored electrical conductance, comprising a nanocellulose aerogelfunctionalized with at least one layer of an electrically conducting material, wherein the nanocellulose aerogel is in particle form and comprises freeze-linked, periodate-oxidized nanocellulose. The application also concerns methods for producing such nanocellulose aerogel particles and uses of the nanocellulose aerogel particles.
B01J 13/00 - Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided forMaking microcapsules or microballoons
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 9/42 - Impregnation with macromolecular compounds
D21H 11/18 - Highly hydrated, swollen or fibrillatable fibres
H01B 1/12 - Conductors or conductive bodies characterised by the conductive materialsSelection of materials as conductors mainly consisting of other non-metallic substances organic substances
B82Y 30/00 - Nanotechnology for materials or surface science, e.g. nanocomposites
6.
FIBRE-CONTAINING SHEET COMPRISING A FOLDING PATTERN AND METHOD OF PRODUCING THE SAME
A fibre-containing sheet comprising a folding pattern and a partly or fully folded sheet product obtained from the fibre-containing sheet is disclosed. The folding pattern of the fibre-containing sheet comprises a series of parallel straight fold lines and a series of zigzag fold lines. Each zigzag fold line has a breadth which is greater than a breadth of a straight fold line. The partly folded sheet product can be shaped into various complex geometrical shapes, including spheres and saddle points, as a result ofthe folding pattern.A method for producing the fibre-containing sheet as well as use of the fibre-containing sheet is also disclosed.
B32B 3/28 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layerLayered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a layer with cavities or internal voids characterised by a layer comprising a deformed thin sheet, e.g. corrugated, crumpled
B29C 53/04 - Bending or folding of plates or sheets
The present invention relates to a method printing a fluorescent full colour image to a substrate that contains an optical whitening agent, which when illuminated with UV-light emits blue colour. According to the invention, the blue colour is used as a blue colour component (B) in an additive RGB-colour model. Thereby, only the green (G) and red (R) colour components are printed. Thus a full-colour image may be produced with only two fluorescent printing inks. The method provides an economical and efficient method to print security prints with high quality.
The present invention relates to a process for the production of a bulky multi-layer paperboard comprising a middle layer produced from a cured pulp product produced by a method comprising the steps of: i)providing a first aqueous pulp slurry comprising cellulosic fibres and having a pulp consistency of from 0.1%to 40 % by weight, calculated as dry weight of the cellulosic fibres in the first pulp slurry; ii)adding to the first pulp slurry an aluminium metal salt comprising Al3+ - ions to a total molar concentration of aluminium ions of from 0.0001M to 0.5 M in the first pulp slurry; iii) adjusting the pH of the first pulp slurry to a pH of from pH 3.0 to pH 6.0; iv) dewatering and curing the first pulp slurry at a temperature of at least 60°C and thus provide a cured pulp product.
Process for the production of a cured pulp product suitable for use in the production of paper, paperboard, tissue paper, filter paper or fluff pulp, comprising the steps of attaching an anionic or amphoteric carboxymethyl cellulose (CMC) to cellulosic fibres in acidic conditions or in the presence of divalent metal ions. Aluminium ions or divalent ions are then added to the slurry to a total molar concentration of from 0.0001 M to 0.5 M in the first pulp slurry. The first pulp slurry is then dewatered and cured in acidic conditions and a cured pulp product is provided. The cured pulp product is subsequently used in a paper making process to provide a paper-based product, whereby higher bulk is provided for the final paper-based product. Alternatively, the curing step is omitted and instead aluminium ions are added to the first pulp slurry and the pulp is directly used in a paper making process.
A method for producing an electrode active coating on a current collector comprising providing isolated lignin and subjecting the isolated lignin to a pre-treatment in order to remove low molecular mass fractionsof the lignin. The pre-treated lignin is mixed with an electrode active material, water and a conductive additive material so as obtain a slurry adapted for coating of a current collector. The coating obtained by the method comprises pre-treated lignin as a binder. The coating obtained has good binding properties between the particles of the coating as well as to the current collector. Furthermore, it has excellent electrochemical properties during use in a lithium-ion battery.
The present invention relates to a method of producing lignin with reduced amount of odorous substances comprising the steps of: i) dissolving isolated lignin into an alkali solution; ii)adding to the solution C1 -C 4 -alcohol in an amount of less than 30% by weight, based on the dry weight of the isolated lignin;and iii) re-precipitating lignin by acidifying the solution. The invention also relates to a lignin product with reduced odor obtained and/or obtainable by the method and to the use of the obtained lignin as a component in polymer blends, an additive or filler in building materials, as binding agent in adhesives, and/or for the production of a carbon fiber, especially in indoor applications.
C08L 97/00 - Compositions of lignin-containing materials
C09J 197/00 - Adhesives based on lignin-containing materials
D01F 9/17 - Carbon filamentsApparatus specially adapted for the manufacture thereof by decomposition of organic filaments from products of vegetable origin or derivatives thereof, e.g. from cellulose acetat from lignin
The present invention relates to a process for the production of treated pulp comprising the steps of: i. providing a fibre source material; ii. subjecting the fibre source material to pre-hydrolysis; iii. subjecting the pre-hydrolysed fibre source material to alkaline chemical pulping process, preferably kraft pulping, to obtain an alkaline pulp; iv. optionally adjusting the pH of the obtained pulp to above pH 9; v. subjecting the alkaline pulp to a bleaching sequence comprising contacting the pulp with ozone (Z) in alkaline conditions to obtain a treated pulp. The invention also relates to a treated pulp obtained, textile fibres produced from the treated pulp, textile products comprising the textile fibres and to the use of the treated pulp.
D01F 2/02 - Monocomponent artificial filaments or the like of cellulose or cellulose derivativesManufacture thereof from solutions of cellulose in acids, bases, or salts
D21C 1/04 - Pretreatment of the finely-divided materials before digesting with acid reacting compounds
C08B 1/00 - Preparatory treatment of cellulose for making derivatives thereof
Disclosed is a method of producing a continuous lignin fiber from softwood and/or hardwood alkali lignin. The lignin fiber can be further treated to obtain structural carbon fiber.
D01F 9/00 - Man-made filaments or the like of other substancesManufacture thereofApparatus specially adapted for the manufacture of carbon filaments
D01F 9/17 - Carbon filamentsApparatus specially adapted for the manufacture thereof by decomposition of organic filaments from products of vegetable origin or derivatives thereof, e.g. from cellulose acetat from lignin
The invention relates to a sandwich material comprising at least 3 layers, the layers being a first cover layer, an intermediate layer and a second cover layer. The intermediate layer is in the form of at least one segmented sheet and comprises a mixture of at least one polymer and cellulose fibres. Sheets may comprise susceptors. Processes for manufacturing the sandwich material are also described.
B32B 5/00 - Layered products characterised by the non-homogeneity or physical structure of a layer
B32B 11/06 - Layered products essentially comprising bituminous or tarry substances comprising such substance as the main or only constituent of a layer, next to another layer of a specific substance of paper or cardboard
B32B 23/04 - Layered products essentially comprising cellulosic plastic substances comprising such substance as the main or only constituent of a layer, next to another layer of a specific substance
16.
METHOD OF SPINNING FIBRES OR EXTRUSION, AND THE PRODUCTS OBTAINED
The invention relates to a continuous, scalable and parallelizable method for preparing strong and stiff fibres (filaments) or films. The fibre or film is prepared by utilizing hydrodynamicaily induced alignment of the constituents of a dispersion in combination with surface-charge controlled gel transition to produce fibres with a high degree of alignment of the constituents (polymer(s), fibrils etc). The invention also relates to the fibres or films so formed.
D01D 5/14 - Stretch-spinning methods with flowing liquid stretching media
B82B 3/00 - Manufacture or treatment of nanostructures by manipulation of individual atoms or molecules, or limited collections of atoms or molecules as discrete units
D01F 2/00 - Monocomponent artificial filaments or the like of cellulose or cellulose derivativesManufacture thereof
D01F 4/00 - Monocomponent artificial filaments or the like of proteinsManufacture thereof
D01F 9/08 - Man-made filaments or the like of other substancesManufacture thereofApparatus specially adapted for the manufacture of carbon filaments of inorganic material
42 - Scientific, technological and industrial services, research and design
Goods & Services
(1) Scientific research in the field of processing of bio-based raw material to end products and environmental impact of products and use of products; technical consulting in the field of processing of bio-based raw material to end products and environmental impact of products and use of products; providing technology information in the field of processing of bio-based raw material to end products and environmental impact of products and use of products; product design consulting services; product packaging design services; industrial analysis and research services in the field of processing of bio-based raw material to end products and environmental impact of products and use of products.
18.
Single-step method for production of nano pulp by acceleration and disintegration of raw material
The invention relates to methods of manufacturing nano pulp, wherein cellulose containing raw material is accelerated in a continuous gas and/or liquid flow, whereby the material is disintegrated and nano pulp is produced. The gas and/or liquid flow may be created by reduction of an elevated pressure in a reactor holding the cellulose containing raw material. The invention also relates to the nano pulp produced.
A method for producing a stabilized lignin fiber from softwood alkaline lignin by heat treatment in the absence of oxidant is disclosed. The stabilized lignin fiber can be further treated to obtain carbon fiber.
D01F 9/17 - Carbon filamentsApparatus specially adapted for the manufacture thereof by decomposition of organic filaments from products of vegetable origin or derivatives thereof, e.g. from cellulose acetat from lignin
20.
SYSTEM AND PROCESS FOR IMPROVING PAPER AND PAPER BOARD
The invention relates to a process for making paper or paper board comprising forming a cellulosic suspension, flocculating the suspension, draining the suspension on a device to form a sheet and then drying the sheet, characterised in that the suspension is flocculated using a formation improving 3-component flocculation system comprising a) a linear cationic or ampoteric co-polymer of i) acrylamide, and ii) a substance with formula (I) with a halide as counter-ion; b) at least one water soluble component chosen from the group of anionic polyacrylamide.non ionic polyacryiamide and polyethyleneoxide; and c) inorganic microparticies, whereby the flocculation system does not contain a wafer-dispersible or branched anionic organic polymer. The invention also relates to use of the flocculation/retention system in the manufacture of paper or paper board, and to paper and paper board thus produced.
The invention relates to methods of manufacturing nano pulp, wherein cellulose containing raw material is accelerated in a continuous gas and/or liquid flow, whereby the material is disintegrated and nano pulp is produced. Said gas and/or liquid flow may be created by reduction of an elevated pressure in a reactor holding the cellulose containing raw material. The invention also relates to the nano pulp produced.
Disclosed is a method of producing a continuous lignin fiber from softwood and/or hardwood alkali lignin. The lignin fiber can be further treated to obtain structural carbon fiber.
D01F 9/17 - Carbon filamentsApparatus specially adapted for the manufacture thereof by decomposition of organic filaments from products of vegetable origin or derivatives thereof, e.g. from cellulose acetat from lignin
Disclosed is a method of producing a continuous lignin fiber from softwood and/or hardwood alkali lignin. The lignin fiber can be further treated to obtain structural carbon fiber.
D01F 9/17 - Carbon filamentsApparatus specially adapted for the manufacture thereof by decomposition of organic filaments from products of vegetable origin or derivatives thereof, e.g. from cellulose acetat from lignin
C07G 1/00 - Low-molecular-weight derivatives of lignin
The invention relates to highly extensible mouldable materials based on mixtures of lignocellulosic fibre materials and thermoplastic latex. A two-step process is disclosed, in which a paper material is first formed on a paper-machine and pressed and dried to a solids content between 30 and 100 % (pre-form), after which the so produced material is subjected to heat-pressing (moulding), or alternatively pressing followed by heat-activation.
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
D21H 21/50 - 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 form
The invention relates to compositions for coating of printing paper, said compositions comprising microfibrillated cellulose (MFC) and one or more polysaccharide hydrocolloids, and use of said compositions. Further, the invention relates to coated paper, comprising a first layer of polysaccharide hydrocolloid(s) and a second layer of MFC, and use of said paper. A method for reducing the linting and/or dusting of a paper is also disclosed.
A method for the manufacturing of nanocellulose. The method includes a first modification of the cellulose material, where the cellulose fibers are treated with an aqueous electrolyte-containing solution of an amphoteric cellulose derivative. The modification is followed by a mechanical treatment. By using this method for manufacturing nanocellulose, clogging of the mechanical apparatus is avoided. Also the nanocellulose is manufactured in accordance with the method and uses of the cellulose.
D21H 11/18 - Highly hydrated, swollen or fibrillatable fibres
D21H 11/20 - Chemically or biochemically modified fibres
D21H 15/02 - Pulp or paper, comprising fibres or web-forming material characterised by features other than their chemical constitution characterised by configuration
D21C 9/00 - After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters
27.
A METHOD FOR SEPARATING FROM SUBERIN AND/OR CUTIN CONTAINING PLANTS, A SOLID AND/OR OIL FRACTION ENRICHED IN CIS-9,10- EPOXY-18-HYDROXYOCTADECANOIC ACID
The present invention provides a method for converting suberin and/or cutin containing plant parts into a suberin monomer containing mixture by alkali hydrolysis and isolating a fraction enriched in c/s-9,10-epoxy-18-hydroxyoctadecanoic acid together with a residual fraction containing, mainly more lipophilic hydroxyfatty acids, betulin, lupeol, and betulinic acid as major components. Also disclosed are products obtainable by said method and uses of said products and said method.
The invention relates to a method of producing an extrudate comprising the steps of providing a plant protein and treating said protein with a solution comprising a nitrogen-containing compound. The solution with the nitrogen-containing compound may moreover comprise an anti-oxidative acid. A product, such as a film, obtained by the method is also described. By using the solvent-free method of the invention, polymers with excellent barrier and tensile properties may be produced.
This invention concerns motion-controlled, layered mechano-active materials comprising at least one first fiber-based layer and at least one second layer capable of releasing or inducing tension, whereby the extension of the material is anisotropically controllable by heat and/or moisture. The motion control may be exterted by moisture or heat, e.g. by an electrical current. Products of the invention may be used for packaging or display purposes.
B32B 33/00 - Layered products characterised by particular properties or particular surface features, e.g. particular surface coatingsLayered products designed for particular purposes not covered by another single class
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 27/12 - Layered products essentially comprising synthetic resin next to a fibrous or filamentary layer
B32B 29/00 - Layered products essentially comprising paper or cardboard
B32B 7/02 - Physical, chemical or physicochemical properties
B32B 27/04 - Layered products essentially comprising synthetic resin as impregnant, bonding, or embedding substance
B32B 5/28 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous one layer being a fibrous or filamentary layer impregnated with or embedded in a plastic substance
B65D 81/34 - 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 for packaging foodstuffs intended to be cooked or heated within the package
30.
METHOD FOR PROVIDING A NANOCELLULOSE INVOLVING MODIFYING CELLULOSE FIBERS
The present invention provides a method for the manufacturing of nanocellulose. The method includes a first mod-ification of the cellulose material, where the cellulose fibres are treated with an aqueous electrolyte-containing solution of an am-photeric cellulose derivative. The modification is followed by a mechanical treatment. By using this method for manufacturing nanocellulose, clogging of the mechanical apparatus is avoided. Also disclosed is nanocellulose manufactured in accordance with said method and uses of said cellulose.
The present invention provides a method for the manufacturing of nanocellulose. The method includes a first modification of the cellulose material, where the cellulose fibres are treated with an aqueous electrolyte-containing solution of an amphoteric cellulose derivative. The modification is followed by a mechanical treatment. By using this method for manufacturing nanocellulose, clogging of the mechanical apparatus is avoided. Also disclosed is nanocellulose manufactured in accordance with said method and uses of said cellulose.
The invention relates to compositions for coating of printing paper, said compositions comprising microfibrillatedcellulose (MFC) and one or more polysaccharide hydrocolloids, and use of said compositions. Further, the invention relates tocoated paper, comprising a first layer of polysaccharide hydrocolloid(s) and a second layer of MFC, and use of said paper. Amethod for reducing the linting and/or dusting of a paper is also disclosed.
The invention relates to compositions for coating of printing paper, said compositions comprising microfibrillated cellulose (MFC) and one or more polysaccharide hydrocolloids, and use of said compositions. Further, the invention relates to coated paper, comprising a first layer of polysaccharide hydrocolloid(s) and a second layer of MFC, and use of said paper. A method for reducing the linting and/or dusting of a paper is also disclosed.
The present invention relates to a method for utilizing a wood hydrolysate obtained from a hydrothermal treatment of a wood material method comprises the steps of providing a wood material, treating the wood material by means of an aqueous hydrothermal treatment so that a wood hydrolysate and a wood residue is formed. The wood hydrolysate comprises oligo- and polysaccharides as the main component of dry matter. The method further comprises the steps of; separating the wood hydrolysate into at least a first and a second fraction and using at least one of the at least first and second fractions for production of an intermediate or end product. Such end product may be e.g. a film, coating, package or a gel. The present invention also relates to a polymer product such as a film, a coating or a gel and its applications. The present invention provides for biodegradable and renewable polymer products and a method which utilizes and extracts a very high product value from a process.
METHOD FOR MANUFACTURING A COMPOSITE MATERIAL HAVING REDUCED MECHANOSORPTIVE CREEP, THE COMPOSITE MATERIAL, USE OF THE METHOD AND THE COMPOSITE MATERIAL
The present invention is a method for manufacturing a composite material having reduced mechanosorptive creep comprising the following steps: a) mixing fibers of a lignocellulosic material with a thermoplastic material where the thermoplastic material is in fiber form, b) adding the mixture made in step a) onto a wet web, thus forming a composite material and c) hot pressing of the composite material. The present invention also provides a composite material having reduced mechanosorptive creep being the manufacturing result of the method. The present invention also comprises the use of the method and the composite material.
