Abstract

A composition, a method for manufacturing the composition, and products containing the composition are disclosed. The present composition is a dispersion comprising a plant-based wax and a fibrillated cellulose component. Additionally, a solid wet product and a use of the said composition is disclosed.

IPC Classes  ?

• C09D 191/06 - Waxes
• C09D 7/40 - Additives
• C09D 101/02 - CelluloseModified cellulose

Goods & Services

Unprocessed plastics; cellulose and plastic-based composite materials for industrial use; wood fiber and plastic-based composite materials for industrial use; cellulose and plastic-based composite materials especially in the form of granulates; chemical compounds for fire extinguishing and prevention; fire retardant materials for commercial and domestic use; antimicrobial materials for industrial use; thermoplastic elastomers. Unprocessed and semi-processed mineral fibers or elastomers, or substitutes for these; cellulose and plastic-based composite materials in extruded form for use in manufacture; plastics in extruded form for use in manufacture; semi-finished products based on cellulose and plastic composite; semi-finished products based on wood fiber and plastic-based composite; fire resistant and fire preventive products and materials; elastomers.

Goods & Services

Unprocessed plastics; cellulose and plastic-based composite materials for industrial use; wood fiber and plastic-based composite materials for industrial use; cellulose and plastic-based composite materials especially in the form of granulates; chemical compounds for fire extinguishing and prevention; fire retardant materials for commercial and domestic use; antimicrobial materials for industrial use; thermoplastic elastomers. Unprocessed and semi-processed mineral fibers or elastomers, or substitutes for these; cellulose and plastic-based composite materials in extruded form for use in manufacture; plastics in extruded form for use in manufacture; semi-finished products based on cellulose and plastic composite; semi-finished products based on wood fiber and plastic-based composite; fire resistant and fire preventive products and materials; elastomers.

Abstract

The present invention provides a method for derivatizing cellulose pulp at high solids content or even at a fully dry state without pretreating the cellulose, the method comprising preparing a reaction medium comprising urea and at least one derivatization reagent; carrying out a chemical derivatization reaction between the at least one derivatization reagent and the cellulose pulp in a reaction system comprising the cellulose pulp in contact with the reaction medium; and optionally purifying and/or recovering the derivatized cellulose product. The present description also relates to products obtainable using said method.

IPC Classes  ?

• C08B 5/14 - Cellulose sulfate
• C08B 1/02 - Rendering cellulose suitable for esterification
• C08B 11/00 - Preparation of cellulose ethers
• C08B 1/06 - Rendering cellulose suitable for etherification
• B82Y 40/00 - Manufacture or treatment of nanostructures

Abstract

Method and apparatus for removing moisture from a fibre web. According to the invention, the fibre web is heated to a temperature of over 50 °C, after which it is brought to vacuum evaporation, in connection with which the temperature of the web is reduced to less than 20 °C. By means of vacuum drying, a significant saving in energy is achieved in paper and board manufacture. In addition to this, by means of pre-drying the printing base, i.e. paper or board, fluting is reduced in heatset-offset printing. At the same time, the "blistering" phenomenon is eliminated and the contrast and colour reproduction of the impression are improved.

IPC Classes  ?

• D21F 5/14 - Drying webs by applying vacuum
• B41F 23/04 - Devices for treating the surfaces of sheets, webs or other articles in connection with printing by heat drying, by cooling, by applying powders
• D21G 1/00 - CalendersSmoothing apparatus
• D21G 7/00 - Damping devices

Abstract

The invention relates to a method for forming a silicon-oxygen compound. According to the invention, the silicon-oxygen compound is manufactured from silicon-based starting material so that reactivity of the silicon-based starting material is raised by a treatment selected from the group of heat treatment, dissolution, addition of water, mixing, acid treatment and their combinations, and acid compound selected from the group of acids, acid gases and their combinations is added to precipitate the silicon-oxygen compound. In addition, the invention relates to the corresponding silicon-oxygen compound and to its use.

IPC Classes  ?

• C01B 33/12 - SilicaHydrates thereof, e.g. lepidoic silicic acid
• D21H 17/68 - Water-insoluble compounds, e.g. fillers or pigments siliceous, e.g. clays
• C08K 3/36 - Silica

Abstract

The invention relates to a method for forming a silicon-oxygen compound. According to the invention, the silicon-oxygen compound consisting mainly of nanoscale particles is manufactured from silicon-based starting material substantially in connection with the manufacture of a carrier material, and the formed silicon-oxygen compound is provided in connection with the carrier material to modify the surface properties of the carrier material.

IPC Classes  ?

• C01B 33/12 - SilicaHydrates thereof, e.g. lepidoic silicic acid
• C09C 1/30 - Silicic acid
• D21H 17/68 - Water-insoluble compounds, e.g. fillers or pigments siliceous, e.g. clays
• D21H 19/40 - Coatings with pigments characterised by the pigments siliceous, e.g. clays
• C08K 3/36 - Silica

Abstract

The present invention relates to a method for modifying lignocellulosic material having phenolic groups or derivatives of phenolic groups. The method comprises the steps of oxidizing the phenolic groups or the phenoxy derivative groups of the lignocellulosic material to quinines, quinone derivatives or other carbonyl groups, and contacting the oxidized fibre material with a biochemical agent comprising a reactive nucleophilic group, said biochemical agent forming a covalent bond with the lignocellulosic material. The invention relates also to modified lignocellulosic products.

IPC Classes  ?

• D21H 11/20 - Chemically or biochemically modified fibres
• 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 17/06 - AlcoholsPhenolsEthersAldehydesKetonesAcetalsKetals
• D21H 17/07 - Nitrogen-containing compounds
• D21H 17/09 - Sulfur-containing compounds
• D21H 17/22 - Proteins
• D21C 9/00 - After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters

Abstract

The invention relates to nanoparticles having a metallic core and a protective wrapping attached to the core, said protective wrapping being derived from aliphatic amines. Using said nanoparticles conductive layers or patterns can be produced on the surface of a substrate by providing onto the substrate a layer of the nanoparticles and by subjecting the layer of nanoparticles to heat and pressure in order to remove protective wrappings of the nanoparticles and to fuse the cores of the nanoparticles in order to form a conductive pattern. The nanoparticles posses advantageous properties with respect to processability and usability.

IPC Classes  ?

• B22F 1/00 - Metallic powderTreatment of metallic powder, e.g. to facilitate working or to improve properties
• B22F 9/24 - Making metallic powder or suspensions thereofApparatus or devices specially adapted therefor using chemical processes with reduction of metal compounds starting from liquid metal compounds, e.g. solutions
• B82B 1/00 - Nanostructures formed by manipulation of individual atoms or molecules, or limited collections of atoms or molecules as discrete units
• H01B 1/00 - Conductors or conductive bodies characterised by the conductive materialsSelection of materials as conductors
• H01L 51/00 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof

Abstract

Metal nanoparticles and methods for the production thereof. The novel nanoparticles having an average particle size of 1 to 10 nm and comprising at least one protective group bonded to metal, in particular copper particles, said group being derived from a monomeric thiol. They can be produced by reducing, in the presence of a reducing agent, dithioester monomers to the corresponding thiols while simultaneously reducing a copper precursor to the corresponding metal to yield amorphous or nanocrystalline copper nanoparticles. The novel metal nanoparticles can be used for producing semiconductive or conductive thin layers on a substrate.

IPC Classes  ?

• B22F 1/00 - Metallic powderTreatment of metallic powder, e.g. to facilitate working or to improve properties
• B22F 9/16 - Making metallic powder or suspensions thereofApparatus or devices specially adapted therefor using chemical processes
• G03F 7/00 - Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printed surfacesMaterials therefor, e.g. comprising photoresistsApparatus specially adapted therefor
• B82B 1/00 - Nanostructures formed by manipulation of individual atoms or molecules, or limited collections of atoms or molecules as discrete units

Abstract

An aqueous dispersion comprising a non-settling colloidal hemicellulose ester polymer in water and a method of producing the same. In the method an esterified hemicellulose is provided wherein at least a part of the esterifying groups are derived from a lower alkanoic acid; the esterified hemicellulose is dissolved in an alkanoic acid to produce a solution; and the solution is dispersed into water to produce an aqueous dispersion of the hemicellulose ester. The present compositions, containing hemicellulose derivatives of low solubility, can be used in paper, paperboard and other fibre-based materials, for paints, surface treatments for polymer films, and polymer films as such, and can be applied as binders.

IPC Classes  ?

• C08L 5/14 - HemicelluloseDerivatives thereof
• C08J 3/07 - Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in aqueous media from polymer solutions

Abstract

A method of modifying the pulp which is used for manufacturing paper or cardboard. According to the method, the pulp is crosslinked chemically, after which it is used to produce paper or cardboard. According to the present invention, the crosslinlcing is carried out by using the dry method, and the crosslinked pulp is then refined to a chosen drainability. With the invention, it is possible to decrease the grammage of the products which are produced from the pulp, without degrading the properties of the products.

IPC Classes  ?

• D21C 9/00 - After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters

Abstract

The invention concerns a method for forming a conductive pattern on an insulating substrate and a related apparatus. In the method, particle-type conductive matter is transferred onto a surface of the substrate and the particle-type conductive matter is at least partially sintered at elevated temperature and pressure in order to convert the particle-formed pattern into a continuously conducting pattern affixed to the substrate. According to the invention, the conductive matter is transferred in the form of a predefined pattern, and the sintering is carried out by using a nip comprising two opposing nip members between which the substrate is fed. The method provides an efficient way of making high-resolution conductor structures at low temperatures.

IPC Classes  ?

• H05K 3/10 - Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern

Abstract

The invention relates to a method and devices for measuring the electrical properties of a planar base material, and a new use. In the method the surface potential of the base material (20) is altered locally, and the surface potential is measured with the aid of a measuring element (200), which is located in the vicinity of the surface of the base material (20). According to the invention, a measuring head, which comprises a measuring edge (29) and a sensor electrode (21) located at a distance from the measuring edge (29) and a counter electrode (23) located in turn at a distance from the sensor electrode (21), is used as the measuring element (200), the sensor electrode being at least partly surrounded with an insulator material (22) with a high permittivity. During measurement, the measuring edge (29) of the measuring head is arranged to be essentially in contact with the base material (20). With the aid of the invention the electrical non-homogeneity of paper, for example, can be detected more accurately, for example, during printing processes.

IPC Classes  ?

• G01R 29/12 - Measuring electrostatic fields
• G01N 33/34 - Paper
• G01N 27/60 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrostatic variables
• G01R 19/145 - Indicating the presence of current or voltage

Abstract

A method of producing paper or cardboard using a bleached cellulosic pulp, which contains hemicelluloses. According to invention a significant portion, at least 5 wt-%, preferably about 8 to 30 wt-%, of the hemicelluloses are removed from the pulp. The hemicelluloses taken from one bleached pulp can then be transferred to another resulting in two pulps with varying properties, one pulp with properties related to low hemicelluloses content in the fiber wall and the other with properties related to high hemicelluloses content on the fiber surface.

IPC Classes  ?

• D21C 9/00 - After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters
• D21H 17/00 - Non-fibrous material added to the pulp, characterised by its constitutionPaper-impregnating material characterised by its constitution
• D21C 5/00 - Other processes for obtaining cellulose, e.g. cooking cotton linters

Goods & Services

Scientific and technological services and research and design relating thereto; industrial analysis and research services; design and development of computer hardware and software; legal services.

Goods & Services

Scientific and technological services and research and design relating thereto; industrial analysis and research services; design and development of computer hardware and software; legal services.