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Synthetic fiber (including chemically modified cellulose)

Subclass of:

162 - Paper making and fiber liberation

162100000 - PROCESSES AND PRODUCTS

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Class / Patent application numberDescriptionNumber of patent applications / Date published
162157100 Synthetic fiber (including chemically modified cellulose) 55
20100038046USE OF AN AQUEOUS SUSPENSION AND/OR DISPERSION OF MINERAL MATERIALS CONTAINING A HYDROPHOBIC GROUP WATER-SOLUBLE COPOLYMER FOR MAKING A PAPER SHEET - The invention consists in the use, in a method for manufacturing a sheet of paper, of an aqueous suspension and/or dispersion of mineral materials as an agent for slowing the penetration of the paper coating into said sheet, characterized in that said suspension and/or dispersion contains at least one water-soluble copolymer made up of at least one ethylenically-unsaturated anionic monomer, and at least one ethylenically-unsaturated oxylalkylated monomer terminated by a hydrophobic chain.02-18-2010
20100108276BORON NITRIDE-BASED FIBER PAPER AND MANUFACTURING PROCESS THEREOF - A boron nitride fiber paper having a very small fiber diameter and exhibiting excellent heat resistance, mechanical properties and heat conductivity. The fiber paper is composed of a fiber assembly which contains boron nitride fibers having a fiber diameter of not more than 1 μm in an amount of not less than 40 wt %.05-06-2010
20100175844USE OF MILL DRIED ALUMINUM HYDROXIDE PARTICLES IN PAPER MANUFACTURING AND PAPER PRODUCT COATINGS - The present invention relates to the use of mill-dried aluminum hydroxide particles (i) as fillers, such as opacity and/or brightness and/or printability improvers, in the production of paper and (ii) in coatings suitable for use on paper and paper products and the paper and paper products having the coating applied thereto.07-15-2010
20110226431Apparatus and Method for Manufacturing Resin-Impregnated Cured Sheet, and Apparatus and Method for Manufacturing Carbonaceous Material Sheet - An apparatus for manufacturing a resin-impregnated cured sheet includes conveyance means for conveying a long uncured fiber sheet which is obtained by using short fibers to make paper and which contains uncured resin, wherein the conveyance means is equipped with at least one rotation belt set comprising a drive roll, a follower roll, and an endless belt which is put on and around the drive roll and follower roll; resin curing means for curing the uncured resin of the uncured fiber sheet; a winding device in which a trimming cutter for trimming both side edges of the resin-impregnated cured sheet; a press roll for retaining a winding face pressure; and a winding shaft are arranged in order along a running path of the resin-impregnated cured sheet.09-22-2011
20110308750HYDROPHOBIC LIGNOCELLULOSIC MATERIAL AND PROCESS THEREFOR - A method is conceived for producing hydrophobic lignocellulosics based on the graft copolymerisation of vinyl-type monomers onto the lignocellulosic backbone initiated by a redox couple initiator in aqueous medium. The green modification process can be carried out on any lignocellulosic material, for example, chemical, chemi-thermomechanical or thermo-mechanical pulps, bleached or unbleached. The technology disclosed in this invention yields individual lignocellulosic entities, for instance, hydrophobic pulp fibres, that can be used in combination with other fibres or polymers to produce nonwoven fibrous materials or composites. A significant aspect of the invention is that the modified lignocellulosic material possesses an efficient hydrophobic barrier and minimum interfacial energy to generate optimum adhesion when introduced to polymer resins. Hydrophobic lignocellulosics can have wide applications in products requiring high dimensional stability and excellent adhesion as in fibre-based packaging, decorative laminates, furniture and non-structural biocomposites.12-22-2011
20160177511Systems and Methods for Continuous Manufacture of Buckypaper Materials06-23-2016
162157200 Synthetic resin 30
20080302495Articles comprising fibres and/or fibrids, fibres and fibrids and process for obtaining them - The present invention relates to novel articles, especially non-woven articles comprising fibres and/or fibrids. It also relates to novel fibres and fibrids and to a process for obtaining these fibres and fibrids.12-11-2008
20110083820PAPER COMPRISING POLYBENZAZOLE OR PRECURSOR THEREOF - The invention relates to a paper comprising at least one of a fiber, pulp, fibril, floc, and fibrid having a polybenzazole structure with a repeating unit of formula (I) and/or (II)04-14-2011
20110114274POLYPHENYLENE SULFIDE FIBER, METHOD FOR PRODUCING THE SAME, WET-LAID NONWOVEN FABRIC, AND METHOD FOR PRODUCING WET-LAID NONWOVEN FABRIC - A polyphenylene sulfide fiber has an amount of heat of crystallization measured by DSC is 10 J/g or more and the degree of shrinkage on dry heating of 150° C.×30 minutes is 20% or less. A method produces a densified wet-laid nonwoven fabric, wherein a wet-laid nonwoven fabric that contains 60 to 100% by mass of a polyphenylene sulfide fiber having an amount of heat of crystallization of 10 J/g or more and wherein the amount of heat of crystallization of the polyphenylene sulfide fiber before heating-pressurizing treatments is 5 J/g or more is subjected to heating-pressurizing treatment at a temperature that is not lower than the glass transition temperature and not higher than the melting point of the polyphenylene sulfide fiber.05-19-2011
20110209840FIBROUS STRUCTURES AND METHODS FOR MAKING SAME - Fibrous structures that exhibit a pore volume distribution such that greater than about 50% of the total pore volume present in the fibrous structure exists in pores of radii of from about 101 μm to about 200 μm, and methods for making such fibrous structures are provided.09-01-2011
20140144599NONWOVEN FABRIC COMPRISING POLYPHENYLENE SULFIDE FIBER - A nonwoven fabric suitable for electrical insulation or as a battery separator is provided. The nonwoven fabric includes a PPS fiber, the nonwoven fabric being obtainable by a process for papermaking and having a front surface with a water contact angle greater than that of a back surface of the nonwoven fabric by 5° or more. A suitable method for producing the nonwoven fabric includes dispersing an undrawn polyphenylene sulfide fiber in water, depositing the fiber to form paper, and performing heat and pressure treatment with a calender having two rolls with surface temperatures different by 10° C. or more.05-29-2014
162157300 Polyamide, polyester or polyurethane 16
20100206502ELECTROCONDUCTIVE ARAMID PAPER AND TAPE MADE THEREFROM - This invention relates to a tape made from an aramid paper, and a process for making the paper, the papers comprising 5 to 65 parts by weight aramid fiber, 30-90 parts by weight aramid fibrids, and 1-20 parts by weight of conductive filler, based on the total weight of the aramid fiber, fibrids, and filler; the paper having an apparent density of not more than 0.43 g/cm08-19-2010
20100212851PARA-ARAMID PULP INCLUDING META-ARAMID FIBRIDS AND PROCESSES OF MAKING SAME - The present invention relates to para-aramid pulp including meta-aramid fibrids for use as reinforcement material in products including for example friction materials, fluid sealing materials, and papers. The invention further relates to processes for making such pulp.08-26-2010
20100230061Process for Producing Optically Brightened Paper - The instant invention relates to a process for the production of optically brightened paper by treating the pulp suspension with an optically brightened filler composition comprising optically brightened plastic fibres, preferably polyester fibres, which leads to a surprising high lightfastness of the resulting paper.09-16-2010
20110100574FIBROUS STRUCTURES THAT EXHIBIT CONSUMER RELEVANT PROPERTY VALUES - Fibrous structures that exhibit a 4-Factor Consumer Relevant Property Value and more particularly to fibrous structures that exhibit a 5-Factor and/or 6-Factor Consumer Relevant Property Value are provided.05-05-2011
20110139386WET LAP COMPOSITION AND RELATED PROCESSES - A microfiber-containing wet lap composition is provided. The wet lap composition comprises a mixture of a sulfopolyester dispersion and a plurality of water nondispersible synthetic polymer microfibers. The microfibers have an equivalent diameter of less than 5 microns and a length of less than 25 millimeters. The sulfopolyester dispersion comprises at least one sulfopolyester and water.06-16-2011
20120180968NONWOVEN ARTICLE WITH RIBBON FIBERS - Ribbon fibers, nonwoven articles derived therefrom, and their process of manufacture are provided. The ribbon fibers are derived from multicomponent fibers having a striped configuration and have a length of less than 25 millimeters, a minimum transverse dimension of less than 5 microns, and a transverse aspect ratio of at least 2:1. The ribbon fibers are formed from a water non-dispersible synthetic polymer. The nonwoven articles containing the ribbon fibers may be used for a wide array of products.07-19-2012
20120227919Method for Preparing Aramid Paper and the Aramid Paper Obtained Therefrom - A method for preparing aramid insulating paper, includes the operations of: providing aramid pulp slurry and aramid short fiber slurry at respective desired concentrations; blending, beating and fluffing the aramid pulp slurry and the aramid short fiber slurry in a given ratio to afford a paper pulp at a desired concentration; transiting the paper pulp to a papermaking machine fitted with a head box to form and make wet paper sheets; pressing to dewater the wet paper sheets and drying the dewatered paper sheets; and calendering the dried paper sheets at a high temperature to obtain the aramid insulating paper, wherein in operation iii), at least one ultrasonic generator is mounted on the head box to apply directional ultrasonic waves to the paper pulp flowing through the heat box. The aramid insulating paper prepared according to the method of the invention has enhanced strength, smoothness and uniformity.09-13-2012
20120241115POLYIMIDE SHORT FIBERS AND HEAT-RESISTANT PAPER COMPRISING SAME - Disclosed are polyimide short fibers having an extremely high heat resistance, suitable for non-woven fabrics and paper, and having many branches. Specifically, disclosed are polyimide short fibers having many branches, which are produced by beating and loosening a specific foamed polyimide material. The foamed material preferably comprises a polyimide produced using 2, 3, 3′, 4′-biphenyltetracarboxylic acid as an aromatic tetracarboxylic acid component, preferably has a glass transition temperature of 300° C. or higher, and preferably has an expansion ratio of 20 times or more.09-27-2012
20130139983PRODUCTION OF FILLED PAPER USING BIODEGRADABLE POLYESTER FIBERS AND/OR POLYALKYLENE CARBONATE FIBERS - The present invention relates to a process for producing filled paper, card and board comprising dewatering a paper stock with sheet formation and drying, wherein biodegradable polyester fibers and/or polyalkylene carbonate fibers are added to the paper stock.06-06-2013
20130199744BIOMASS-DERIVED POLYESTER STAPLE FIBERS AND WET-LAID NONWOVEN FABRIC FORMED FROM THE SAME - The present invention has an object to provide staple fibers suitable for manufacturing a wet-laid nonwoven fabric having excellent adhesive strength and heat resistance at a reduced environmental burden, a manufacturing method of the same, and a nonwoven fabric using the staple fibers. The object can be achieved by polyalkylene terephthalate or polyalkylene naphthalate staple fiber wet nonwoven fabric having excellent adhesive strength and heat resistance that are provided by blending and thermal-compression bonding of low oriented yarn and fully oriented yarn, wherein a specific ratio of biomass-derived carbon, fineness, fiber length, and a weight ratio between fully oriented staple fibers and low oriented staple fibers in the wet-laid nonwoven fabric are used to obtain a fine low oriented yarn having excellent binder performance and a fine fully oriented yarn having an unprecedented level of fineness.08-08-2013
20130255899TRANSFORMER PAPER AND OTHER NON-CONDUCTIVE TRANSFORMER COMPONENTS - A transformer paper comprising polyetherimide fibers is disclosed, along with a method of making the transformer paper and articles.10-03-2013
20130299108SHORT-CUT MICROFIBER-CONTAINING MIXTURE - A short-cut microfiber-containing mixture is provided comprising a plurality of water non-dispersible short-cut polymer microfibers having a fineness of 0.5 d/f or less; water; and a sulfopolyester dispersed in said water, wherein the sulfopolyester has a glass transition temperature (Tg) of at least 40° C., and wherein the sulfopolyester exhibits a melt viscosity of less than about 12,000 poise measured at 240° C. at a strain rate of 1 rad/sec.11-14-2013
20140020857FREEZE DRIED PULP AND METHOD OF MAKING - A method for making a dry pulp comprising the steps of 01-23-2014
20140299285PELLET COMPRISING ARAMID PULP AND FILLER MATERIAL - A pellet made of aramid pulp and filler material. The pellet has at most 90 weight percent aramid pulp and at least 10 weight percent filler material. A method for manufacturing a pellet that has at most 90 weight percent aramid pulp and at least 10 weight percent filler material.10-09-2014
20150007955PROCESSES TO PRODUCE SHORT-CUT MICROFIBERS - A process for producing a microfiber product stream, the process comprises: (A) contacting cut multicomponent fibers having a length of less than 25 millimeters with a treated aqueous stream in a fiber slurry zone to produce a cut multicomponent fiber slurry; (B) contacting the cut multicomponent fiber slurry with a heated aqueous stream in a mix zone to produce a heated multicomponent fiber slurry; (C) routing the heated multicomponent fiber slurry to a fiber opening zone to remove a portion of the water dispersible sulfopolyester to produce an opened microfiber slurry; wherein the opening zone comprises a pipe reactor; and (D) routing the opened microfiber slurry to a primary solid liquid separation zone to produce the microfiber product stream and a first mother liquor stream.01-08-2015
20150041088USE OF NANOCRYSTALINE CELLULOSE AND POLYMER GRAFTED NANOCRYSTALINE CELLULOSE FOR INCREASING RETENTION IN PAPERMAKING PROCESS - The invention provides methods and compositions for improving the characteristics of paper substrates. The method involves adding to a paper substrate an NCC-polymer. NCC-polymers have unique chemical properties which result in improvements in wet strength, dry strength and drainage retention properties of the paper substrates.02-12-2015
162157400 Polymerized unsaturated compound 9
20080251224Process for Making a Paperboard from a High Consistency Slurry Containing High Levels of Crosslinked Cellulosic Fibers - A process is described for manufacturing a paperboard from a high consistency slurry containing high levels of crosslinked cellulosic fibers by dispersing the fibers in a screen with a rotor in the screen and then passing the fibers through the screen basket with a hole diameter of at least 2 mm and forming the cellulosic fibers on a foraminous support. Another slurry of regular cellulosic fibers is deposited on at least one side of the first slurry during the formation process. The formed web is dewatered and dried.10-16-2008
20090126887Pipd Paper and Components Made Therefrom - The invention concerns a paper useful as an structural component, the paper comprising 20 to 100 percent by weight of polypyridobisimidazole fiber and a binder material, wherein the paper has (i) a density of 0.08 to 1.5 grams per cubic centimeter and (ii) a basis weight of from 10 to 150 grams per square meter, and the paper, when impregnated with at least 15% by weight of phenolic resin, has a specific tensile stiffness of at least 100 (N/cm)/(g/m05-21-2009
20090159228Variable dispersion of wet use chopped strand glass fibers in a chopped title strand mat - A size composition for reinforcement fibers used to form non-woven mats that contain variable amounts of individual filaments dispersed from chopped reinforcement fiber bundles is provided. The size composition contains a polyvinylamine film former, one or more silane coupling agents, and, optionally a lubricant. The size composition works in conjunction with the whitewater components in a wet-laid mat forming process to disperse individual filaments from the bundles of chopped fibers. The whitewater contains an anionic polyacrylamide viscosity modifier and/or a cationic or non-ionic amine dispersant (e.g., ethoxylated amine). The presence of a cationic or non-ionic amine in the whitewater disperses individual filaments from the chopped glass fiber bundles. The greater the amount of cationic or non-ionic amine present in the whitewater, the greater the amount of fiber dispersion. The absence of a cationic or non-ionic amine and the presence of an anionic polyacrylamide viscosity modifier maintain full bundle formation integrity.06-25-2009
20140251561FIBER COMPRISING POLYVINYLPYRROLIDONE - The present invention relates to a fiber comprising polyvinylpyrrolidone, and a web employing such a fiber.09-11-2014
20150354144AN ELECTRICALLY INSULATING COMPOSITE MATERIAL AND AN ELECTRICAL DEVICE COMPRISING THE SAME - Electrically, insulating composite material is obtained from the form of a paper of a pressboard with an electrical device through post-treating by electron beam irradiation treatment, gamma irradiation treatment or x-ray irradiation treatment.12-10-2015
20150376815SPINNING NOZZLE, PROCESS FOR PRODUCING FIBROUS MASS, FIBROUS MASS, AND PAPER - A spinning nozzle which has a perforated part in which ejection holes have been arranged in a density as high as 600-1,200 holes/mm12-31-2015
20160069025SYSTEM AND METHOD FOR REPRINTING ON PAPER - An enhanced paper for printing, including an ablation resistant coating or ablation resistant fibers, wherein the paper is ablation resistant so that it is not damaged by a light beam that illuminates paper with a fluence that ablates ink or toner but would damage paper that is non-ablation resistant; and wherein the enhanced paper has physical properties of standard paper for printing with laser printers and ink printers.03-10-2016
162157500 Hydrocarbon or halohydrocarbon 2
20090294081Electrodes For Electric Double Layer Devices - The disclosure provides a method comprising contacting a fibrous polymeric material and a carbon material to form a mixture, contacting the mixture with a liquid to form a slurry, and then forming a layer comprising the slurry. Also disclosed are layers formed from the recited methods, electrodes comprising the layers, and electrical devices comprising the layers and/or electrodes.12-03-2009
20120216975Glass Mat with Synthetic Wood Pulp - A non-woven mat may be generated using synthetic wood pulp and short glass fibers. The non-woven mat may be made in very thin, light weight configurations for various uses. The synthetic wood pulp may serve as a dispersant to disperse the glass fibers in a mixture prior to using paper making techniques to form the mat. A heat flux may bind the glass fibers by melting the synthetic wood pulp to form a mat. The mat may be calendered. In some embodiments, the mat may have a secondary application of a polymer, such as PVDF or PMMA which may further strengthen the mat.08-30-2012
162157600 Cellulosic 19
20080295985Cellulose Articles Containing an Additve Composition - In one embodiment, the present invention provides a method of forming a cellulose article having a specific volume of less than 3 cc/gm. The method includes the step of incorporating cellulose fibers with a compound, wherein the compound includes an aqueous dispersion. The aqueous dispersion may have at least one polymer selected from the group consisting of an ethylene-based thermoplastic polymer, a propylene-based thermoplastic polymer, and mixtures thereof; at least one polymeric stabilizing agent; and water. In certain embodiments, a combined amount of the at least one polymer and the at least one stabilizing agent comprises about 25 to about 74 volume percent of the aqueous dispersion.12-04-2008
20080314537Fibrous blend and method of making - A mixed polymer fiber, comprising a crosslinked polymer fiber comprising carboxyalkyl cellulose and a galactomannan polymer or a glucomannan polymer, and cellulose fiber.12-25-2008
20090321029METHOD FOR MAKING BIODEGRADABLE SUPERABSORBENT PARTICLES - A method for making mixed polymer composite fibers in which a carboxyalkyl cellulose and a starch are blended in water to provide an aqueous gel; the aqueous gel treated with a first crosslinking agent to provide a crosslinked gel; the crosslinked gel mixed with a water-miscible solvent to provide fibers; and the fibers treated with a second crosslinking agent to provide crosslinked mixed polymer composite fibers.12-31-2009
20090321030Method for Making Fiber Having Biodegradable Superabsorbent Particles Attached Thereto - A method for making fibers having particles attached thereto, comprising blending a carboxyalkyl cellulose and a starch in water to provide an aqueous gel; treating the aqueous gel with a first crosslinking agent to provide a crosslinked gel; drying the crosslinked gel to provide a solid; comminuting the solid to provide a plurality of particles; combining at least a portion of the plurality of particles with a aqueous dispersion comprising cellulose fibers and a first water-miscible solvent and, optionally, a second crosslinking agent, to provide a mixture comprising swollen particles and cellulose fibers; and adding a second water-miscible solvent to the mixture to provide fibers having particles attached thereto.12-31-2009
20120043039METHOD FOR PRODUCING MODIFIED CELLULOSE - The present invention provides a method for producing modified nanofibrillated cellulose characterized by bringing cellulosic material into a fiber suspension, adsorbing a cellulose derivative or polysaccharide or polysaccharide derivative onto fibers in said fiber suspension under special conditions and subjecting the obtained fiber suspension derivative to mechanical disintegration. A modified nanofibrillated cellulose obtainable by a method of the present invention is provided. Furthermore, the invention relates to the use of said modified nanotibrillated cellulose.02-23-2012
20120097352TREATMENT OF FIBRES TO ENDURE PROCESSING - The invention relates to a method of treating chemical pulp fibres by a polymerizing hydroxy acid, the fibres thus obtained and the products refined from them. In the method, the hydroxy acid reacts with the reactive groups of the fibres in the presence of a catalyst, forming ester bonds. The following units of the same hydroxy acid are oligomerized and/or polymerized to these grafted acid residues. The fibres thus treated and the products refined thereof endure better processing stages that include drawing and stretching than untreated fibres.04-26-2012
20140041821METHOD FOR DRY SPINNING NEUTRAL AND ANIONICALLY MODIFIED CELLULOSE AND FIBRES MADE USING THE METHOD - The present invention is directed towards a method for spinning neutral or anionically modified cellulose comprising the steps of: (a) preparing a suspension of the neutral or anionically modified cellulose in a continuous phase; (b) subjecting the suspension to high shear rate; (c) performing spinning by extruding the cellulose suspension into an airgap region comprising at least one heated zone to obtain spun fibres, (d) subjecting the spun fibres to at least one washing stages and (e) isolating the spun fibres from the at least one washing stages; as well as fibres obtained based on the method of the invention and paper or board products derived from such fibres.02-13-2014
20140305605PAPERMAKING PROCESS EMPLOYING CARBOXYLATED CELLULOSIC FIBERS - A papermaking process includes, firstly, providing carboxylated cellulosic fibers with a carboxyl group content being in the range from 0.06 to 1.5 mmol/g. Then the carboxylated cellulosic fibers are employed to prepare mixing pulp including filler particles, wherein the content of the carboxylated cellulosic fibers in the mixing pulp is in the range from 40% to 100% by dry fiber weight of the mixing pulp. After that, paper is made employing the mixing pulp.10-16-2014
20140338851WATER-DISPERSIBLE PAPER - A water dispersion paper made of wood pulp and/or non-wood pulp is characterized in that purified pulp containing α-cellulose by 88 percent by weight or more accounts for 15 to 95 percent by weight of all pulp. The water dispersion paper has quick water dispersion property and high strength (printability) and its paper surface pH is 6 to 8 (neutral range).11-20-2014
20150020985WET STRENGTH TREATED PAPER AND PAPERBOARD - A process for improving the wet strength of paper or paperboard is disclosed, and compositions, methods, and products related to improved wet strength paper or paperboard are provided. The process includes, for example, contacting at least one side of the paper or paperboard with water or an aqueous composition to wet the paper or paperboard, contacting the wet paper or paperboard with a wet strength resin composition followed by drying the paper or paperboard. The resulted treated or coated paper or paperboard has comparable wet strength properties to that of paper or paperboard containing wet strength resin from a conventional wet end application.01-22-2015
20150041089USE OF NANOCRYSTALINE CELLULOSE AND POLYMER GRAFTED NANOCRYSTALINE CELLULOSE FOR INCREASING RETENTION IN PAPERMAKING PROCESS - The invention provides methods and compositions for improving the characteristics of paper substrates. The method involves adding to a paper substrate an NCC-polymer. NCC polymers have unique chemical properties which result in improvements in wet strength, dry strength and drainage retention properties of the paper substrates.02-12-2015
20150376835ESTERIFIED CELLULOSE PULP COMPOSITIONS AND RELATED METHODS - Esterified cellulose pulp compositions produced in high yield from commercially available wood pulp sources, methods for making the esterified cellulose pulp compositions, and articles prepared from the esterified cellulose pulp compositions.12-31-2015
20160002415ACETYLATED WOOD FIBRE - An acetylated wood fibre suitable for the fabrication of wood products wherein the wood fibre has a moisture content from about 5% to about 8.5% w/w.01-07-2016
20160002859MANUFACTURING METHOD OF CARBOXYMETHYL CELLULOSE NONWOVEN FABRIC AND USE OF CARBOXYMETHYL CELLULOSE NONWOVEN FABRIC MANUFACTURED THEREBY - The present invention relates to a manufacturing method of a carboxymethyl cellulose nonwoven fabric and the use of the carboxymethyl cellulose nonwoven fabric manufactured thereby.01-07-2016
20160032531PAPER COMPOSITION - A paper product may include high energy thermomechanical pulp (TMP), low energy TMP, and microfibrillated cellulose. The paper product may also include inorganic particulate material. A papermaking composition suitable for making the paper product, a process for preparing the paper product, and use of microfibrillated cellulose may include high energy TMP, low energy TMP, and microfibrillated cellulose, and optionally inorganic particulate material. The microfibrillated cellulose may have a fibre steepness of from about 20 to about 50 in the paper product.02-04-2016
20160176989METHOD OF MODIFYING NANOFIBRILLAR CELLULOSE COMPOSITION06-23-2016
162157700 Regenerated cellulose, viscose or rayon 3
20140053995METHOD FOR SPINNING ANIONICALLY MODIFIED CELLULOSE AND FIBRES MADE USING THE METHOD - The present invention is directed towards a method for spinning anionically modified cellulose comprising the steps of: (a) preparing a suspension of the anionically modified cellulose in a continuous phase; (b) subjecting the suspension to high shear rate; (c) performing spinning by extruding the cellulose suspension through a spinneret into a spinbath comprising a cationic complexing agent, and (d) isolating the sun fibres from the spin bath; as well as fibres obtained based on the method of the invention and paper or board products derived from such fibres.02-27-2014
20150315748PLY FOR A BOARD FROM AN IN-LINE PRODUCTION PROCESS - A ply for a paper and paperboard made from a ply substrate material, wherein the ply comprises a hybrid material, in an amount of 1-25 wt-% of the ply, wherein the hybrid material is introduced into a target suspension of the short circulation of a fibrous web forming process of a fibrous web machine, in an in-line process, wherein said target suspension forms the ply substrate material, and the hybrid material comprises an alkaline earth carbonate precipitated onto or into fibers or fibrils of a nanofibrillated polysaccharide.11-05-2015
20160060792POLYSACCHARIDE FIBERS WITH AN INCREASED FIBRILLATION TENDENCY AND METHOD FOR THE PRODUCTION THEREOF - The present invention relates to a method for the production of polysaccharide fibers having increased fibrillation tendency, which, as a fiber-forming substance, comprise a mixture of cellulose and α(1→3)-glucan, as well as to the fibers made thereof and to their use.03-03-2016

Patent applications in all subclasses Synthetic fiber (including chemically modified cellulose)

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