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Cellulose or derivative

Subclass of:

536 - Organic compounds -- part of the class 532-570 series


536100110 - Carbohydrates or derivatives

Patent class list (only not empty are listed)

Deeper subclasses:

Class / Patent application numberDescriptionNumber of patent applications / Date published
536058000 Esters 59
536084000 Ethers 32
536057000 Regenerated cellulose 7
20100016575BACTERIAL CELLULOSE-CONTAINING FORMULATIONS LACKING A CARBOXYMETHYL CELLULOSE COMPONENT - A method for the production of a bacterial cellulose-containing formulation that lacks a carboxymethyl cellulose component. The method includes providing a bacterial cellulose product, mixing the bacterial cellulose product with a polymeric thickener and/or a precipitation agent, lysing the bacterial cells from the bacterial cellulose product or the mixture of the bacterial cellulose product and the polymeric thickener or precipitation agent, and co-precipitating the resultant mixture with a water-miscible non-aqueous liquid. The resultant bacterial cellulose formulation includes at least one bacterial cellulose material and at least one polymeric thickener. The bacterial cellulose formulation, may be used in food compositions.01-21-2010
20100036113PROCESS FOR TREATING CELLULOSE PULP USING CARBOXYMETHYCELULOSE AND PULP THUS OBTAINED - The present invention relates to an improved process for processing chemical cellulose pulp wherein carboxymethylcellulose (CMC) is added during the bleaching step of said pulp. The addition of CMC in this step of the bleaching process provides a pulp with improved physical, chemical and mechanical properties.02-11-2010
20100041878Optical Isomer separating filler - Disclosed is an optical isomer separating filler having separating ability/separating characteristics different from those of conventional optical isomer separating fillers, which is capable of separating an optical isomer which cannot be separated by conventional fillers. Specifically disclosed is an optical isomer separating filler wherein a polysaccharide derivative is chemically bonded onto a support. This optical isomer separating filler is characterized in that the halogen content in the filler is 3.0 to 5.0%.02-18-2010
20090124798Filler for Optical Isomer Separation - A polymer compound derivative, obtained by modifying part of the hydroxy or amino groups of a polymer compound having the hydroxy or amino groups with molecules of a compound represented by the following general formula (I): A-X—Si(Y)05-14-2009
20090299051METHOD FOR PREPARATION OF HIGH ENZYMATIC RESISTANCE HYDROXYALKYLCELLULOSE DERIVATIVES - The present invention relates to a process of preparing hydroxyalkyl cellulose derivatives having improved enzymatic resistance. In particular, the present invention relates to a process of preparing hydroxyalkyl cellulose derivatives by reacting cellulose and ethylene oxide in the presence of alkali metal hydroxide, wherein the reaction between cellulose and ethylene oxide is performed in the presence of isopropyl alcohol azeotropic solvent in a horizontally agitated reactor, wherein the ethylene oxide is supplied via two steps, thus resulting in a two-step reaction, and the amount of alkali metal hydroxide remaining after the first reaction is controlled, thereby enabling to provide hydroxyalkyl cellulose derivatives having improved enzymatic resistance and turbidity and to remarkably decrease the solvent usage to have economical and environmental advantages.12-03-2009
20120116068METHOD FOR BREAKING DOWN CELLULOSE IN SOLUTION - The present invention describes a process for the degradation of cellulose by dissolving the cellulose in an ionic liquid and treating it with an acid, if appropriate with addition of water.05-10-2012
20100048884SOLVO-THERMAL HYDROLYSIS OF CELLULOSE - The invention relates to a process for hydrolyzing cellulose, comprising: (a) contacting cellulose with a fluid mixture comprising supercritical CO02-25-2010
20110082290SUPERHYDROPHILIC AMPHIPHILIC COPOLYMERS AND PROCESSES FOR MAKING THE SAME - A superhydrophilic amphiphilic copolymer and process for making the superhydrophilic amphiphilic copolymer includes a low molecular weight polysaccharide modified with a hydrophobic reagent, such as substituted succinic anhydride. The superhydrophilic amphiphilic copolymer system generates stable foam for use in applications, such as healthcare formulations, with low irritation of the eyes and skin.04-07-2011
20090221812METHOD FOR THE MANUFACTURE OF MICROFIBRILLATED CELLULOSE - A method for treatment of chemical pulp for the manufacturing of microfibrillated cellulose includes the following steps: a) providing a hemicellulose containing pulp, b) refining the pulp in at least one step and treating the pulp with one or more wood degrading enzymes at a relatively low enzyme dosage, and c) homogenizing the pulp thus providing the microfibrillated cellulose. According to a second aspect of the invention a microfibrillated cellulose obtainable by the method according to the first aspect is provided. According to a third aspect of the invention, use of the microfibrillated cellulose according to the second aspect in food products, paper products, composite materials, coatings or in rheology modifiers (e.g. drilling muds) is provided.09-03-2009
20090281302Method of Recycling Fibers From Sewage Sludge and Means Thereof - The present invention generally relates to a method of recycling and producing fibers from sewage sludge, such as streams of municipal, agricultural and industrial flowing wastes to be further processed. The present invention also relates to industrial means adapted for recycling the same. The present invention discloses environmentally friendly processes and means for recovering valuable fibers and especially cellulose fibers and the like from agricultural and/or urban sewage sludge, waste and/or industrial effluents to decrease its volume especially BOD and TSS, obtaining valuable raw materials and decreasing environmental damages.11-12-2009
20100099862PROCESS FOR WASHING POLYSACCHARIDE DERIVATIVES - The present invention relates to a novel process for removing and purifying polysaccharide derivatives, preferably cellulose ethers, from a suspension using a continuous filter device with a multitude of working zones with intermediate resuspension of the filtercake.04-22-2010
20090281303PROCESS FOR SILYLATING CELLULOSE - The present invention describes a process for silylating polysaccharides, oligosaccharides or disaccharides or derivatives thereof by dissolving these in an ionic liquid and reacting them with a silylating agent.11-12-2009
20080234476POLYSACCHARIDE DERIVATIVES AND STRUCTURES EMPLOYING SAME - Polysaccharide derivatives, more particularly heteropolysaccharide derivatives, especially hemicellulose derivatives, methods for making same and structures employing same are provided.09-25-2008
20090264638METHOD FOR PRODUCING CELLULOSE ACYLATE FILM, CELLULOSE ACYLATE FILM AND OPTICAL FILM - An unstretched cellulose acylate film is stretched in a ratio ranging from 1.05 to 1.6 in the longitudinal direction (MD) in a longitudinal stretching section using at least two rollers having a surface-to-surface separation of 2 to 50 mm therebetween and being different in circumferential velocity, thereafter the cellulose acylate film stretched in the longitudinal direction is heated in the heat treatment section to a temperature ranging from Tc to Tc+80° C. under the conditions that the widthwise ends of the cellulose acylate film are gripped, and thus the cellulose acylate film is contracted in the widthwise direction (TD) to produce the intended cellulose acylate film. This method can provide a cellulose acylate film having properties suitable for an optical film and so on.10-22-2009
20090326216PROCESS FOR ACYLATING CELLULOSE - The present invention describes a process for acylating polysaccharides, oligosaccharides or disaccharides or derivatives thereof by dissolving these in an ionic liquid and reacting them with a ketene, and also novel acylated polysaccharides, oligosaccharides or disaccharides or derivatives thereof.12-31-2009
20090062523Method for Separating the Main Components of Lignocellulosic Materials - The objective of this invention is a method for separating cellulosic fibres, hemicellulose and lignin from parts of plants containing these, such as stems, leaves and seed coats or hulls of cereal, oilseed, fibre or grassy plants. After appropriate pre-treatments the material is heated in an alkaline solution at lower temperatures than used in the traditional cellulose manufacturing. After this heat treatment, the fibrous and other undissolved materials are separated from the solution and subsequently ground in wet condition, using preferably chafing treatments. For improving the separation, surface active substances can be included in the alkaline heat treatment solution.03-05-2009
20090054637THERMOPLASTIC RESIN FILM AND METHOD FOR PRODUCING THE SAME - The present invention provides a thermoplastic resin film which has uniform optical properties and can be used for a high quality functional film and a method for producing the same to suppress uneven thickness in the machine direction of a film and streaks in the film. The method for producing a cellulose acylate film (02-26-2009
20090240047CELLULOSIC RESIN FILM AND PROCESS FOR PRODUCING THE SAME - The invention provides a melt-casting film formation process for a cellulosic resin film, by which thickness unevenness of the cellulosic resin film is suppressed in both the cross-machine direction and machine direction. Consequently the invention can provide a cellulosic resin film having high optical properties. In this process for producing the cellulosic resin film, a resin molten in an extruder (09-24-2009
20090259032METHOD OF PRODUCING CELLULOSE CARBAMATE BLOWN FILM AND USE OF THE SAME - The present invention relates to a cellulose carbamate spinning solution, the cellulose carbamate being dissolved in at least one ionic liquid. Furthermore, the invention relates to a method for the production of blown films in which a solution of cellulose carbamate in an ionic liquid is extruded into a coagulation bath, and also to the films produced with the method and the use thereof.10-15-2009
20100184968METHOD FOR PREPARING AN OXIDISED CELLULOSE COMPRESS - A method for preparing an oxidized cellulose complex essentially comprises oxidizing the compress with a hypohalite, in the presence of an oxoammonium salt07-22-2010
20100190973SINGLE STEP PROCESS FOR SEPARATING BIOMASS COMPONENTS - The invention is directed towards a method of pretreatment of a lignocellulose containing biomass so as to make the biomass amenable to enzymatic digestion. More particularly, the instant application discloses a single step separation of biomass into individual components such as cellulose, hemicellulose and lignin without losing chemical nature and with high purity at a time.07-29-2010
20120142909VISCOSITY CONTROL IN COMPOSITIONS COMPRISING PLANT FIBER MATERIALS - Pectinases, such as Pectinex™ Ultra SP-L (composed of the enzyme Polygatacturonase, a type of pectinase which is derived from 06-07-2012
20130137862CELLULOSE CROSSLINKED FIBERS MANUFACTURED FROM PLASMA TREATED PULP - Intrafiber crosslinked cellulose pulp fibers manufactured from a plasma-treated pulp sheet are provided. The provided fibers have lower knot content and increased wet bulk compared to an untreated pulp sheet. Methods for forming the fibers are also provided.05-30-2013
20110118458USE OF MEDIATORS IN THE PRODUCTION OF FIBERBOARDS - The invention relates to a novel mediator used in the production of wood composite materials that are devoid of binding agents.05-19-2011
20100069626NANO-CATALYTIC-SOLVO-THERMAL TECHNOLOGY PLATFORM BIO-REFINERIES - Methods of making glucose and/or furfural from biomass require one or more supercritical fluids that may be used to process biomass, cellulose from the biomass, and/or xylose from the biomass. Examples of supercritical fluids for use in processing biomass include ethanol, water, and carbon dioxide at a temperature and pressure above the critical points for ethanol and carbon dioxide but at a temperature and/or pressure below that of the critical point for water. A supercritical fluid containing carbon dioxide and water may be used to convert cellulose to glucose or convert xylose to furfural. The fluid has a temperature and pressure above the critical point of carbon dioxide, but at least one of the temperature and pressure is below the critical point for water.03-18-2010
20130158250METHOD OF DEACIDIFYING CELLULOSE BASED MATERIALS - Provided are compositions and methods of deacidifying a cellulose-based material. The compositions include a hydrohalo-olefin and a deacidification agent dispersed within the hydrohalo-olefin. Cellulose-based materials are contacted with the composition for a sufficient time to increase the pH of the material.06-20-2013
20120136146PROCESS FOR THE PRODUCTION OF MICROFIBRILLATED CELLULOSE AND PRODUCED MICROFIBRILLATED CELLULOSE - A process for producing microfibrillated cellulose comprises providing a slurry comprising cellulosic fibers, treating the slurry with an enzyme, mechanically treating the slurry so that the fibers are disintegrated wherein the mechanical treatment and the treatment with the enzyme is performed simultaneously in a single treatment step. In this way it is possible to produce microfibrillated cellulose (MFC) in an improved and energy efficient way. A microfibrillated cellulose is produced according to the process.05-31-2012
20110263841MEDICAL DEVICES WITH DEFINABLE POROSITY PRODUCED BY BACTERIAL POLYMER BIO-SYNTHESIS - The present invention relates to a method of forming an implantable medical device comprising: culturing polymer-producing bacteria preferably 10-27-2011
20090176979PROCESS FOR PRODUCTION OF POLYSACCHARIDE AND/OR MONOSACCHARIDE BY HYDROLYSIS OF DIFFERENT POLYSACCHARIDE - The object is to produce a polysaccharide and/or a monosaccharide efficiently by hydrolyzing a different polysaccharide efficiently. The hydrolysis of a polysaccharide is an important means for producing a monosaccharide that can be used as a starting material for the production of ethanol, the solubilization of a water-insoluble polysaccharide, and the production of a useful water-soluble low-polymeric saccharide or the like. For achieving the object, a polysaccharide to be hydrolyzed is reacted with water in the presence of a carbonaceous material having sulfonic acid group therein to cause the hydrolysis of the polysaccharide to be hydrolyzed, thereby producing a other polysaccharide and/or a monosaccharide.07-09-2009
20100029926MOLECULAR MASS ENHANCEMENT OF BIOLOGICAL FEEDSTOCKS - The instant invention involves a process for enhancing molecular mass of biomass reactants. The process comprises first forming a substituted or unsubstituted furfural from a biomass. The substituted or unsubstituted furfural is then reacted with an activated methylene compound in the presence of a catalyst and, if desired, a solvent to form a Knoevenagel product. The product may then be hydrogenated to products containing an alcohol, ether, aldehyde, or ketone functional groups or to an olefinic or aliphatic species wherein as much as all of the oxygen and/or nitrogen has been removed.02-04-2010
20080275230POLYMERS HAVING COVALENTLY BOUND ANTIBIOTIC AGENTS - An antimicrobial composition comprising: a complex of a polysaccharide covalently bonded with an antibiotic. A medical device having an antimicrobial composition comprising: a complex of an oxidized regenerated cellulose covalently bonded with gentamicin.11-06-2008
20120041186SYSTEM AND METHOD FOR PREEXTRACTION OF HEMICELLULOSE THROUGH USING A CONTINUOUS PREHYDROLYSIS AND STEAM EXPLOSION PRETREATMENT PROCESS - A method including: pretreating biomass feed stock in a first pressurized reactor, wherein the feed stock undergoes hydrolysis in the first pressurized reactor; discharging the feed stock from the first pressurized reactor to a pressurized sealing device having a first pressurized coupling to a feedstock discharge port of the first pressurized reactor; maintaining a vapor phase in the first pressurized reactor by injecting steam; washing the feed stock; draining dissolved hemi-cellulosic material extracted from the feed stock; discharging the feed stock from the pressurized sealing device through a second pressurized coupling to a second pressurized reactor; in the second pressurized reactor, infusing cells of the feed stock with steam or water vapor, and rapidly releasing the pressure applied to the feed stock to cause steam expansion in the cells of the feed stock and refine the feed stock.02-16-2012
20120004406CELLULOSE CROSSLINKED FIBERS WITH REDUCED FIBER KNOTS MANUFACTURED FROM PLASMA TREATED PULPSHEETS - An intrafiber crosslinked cellulose pulp fiber manufactured from plasma-treated pulp sheet. The crosslinked fiber can have lower sonic knots than an untreated pulp sheet.01-05-2012
20120157673MINIMAL TISSUE ATTACHMENT IMPLANTABLE MATERIALS - A method for minimizing tissue adhesion at an injured site is provided, the method comprising applying a biocellulose material to the injured site, whereby the adhesion of the tissues at the injured site is minimized, wherein the biocellulose material is at least partially dehydrated. Another embodiment provides an implantable material, which effectively prevents cell adhesion and has desirable mechanical properties.06-21-2012
20100093995 PROCESS FOR THE RECOVERY OF HCL FROM A DILUTE SOLUTION THEREOF - The invention provides a process for the recovery of HCl from a dilute solution thereof, comprising: a) bringing a dilute aqueous HCl solution into contact with a substantially immiscible extractant, said extractant comprising: 1) an oil soluble amine which amine is substantially water insoluble both in free and in salt form; 2) an oil soluble organic acid which acid is substantially water insoluble both in free and in salt form; and 3) a solvent for the amine and organic acid; whereupon HCl selectively transfers to said extractant to form an HCl-carrying extractant; and b) treating said HCl-carrying extractant to obtain gaseous HCl.04-15-2010
20120130064METHOD FOR THE HYDROPHILIC PROCESSING OF CELLULOSE FIBRE AND PRODUCTION METHOD FOR HYDROPHILIC CELLULOSE FIBRE - This invention provides a method for hydrophilic treatment of cellulose fibers that can prevent coloring or decrease in fiber strength. The hydrophilic treatment method comprises a first oxidation step of oxidizing cellulose fibers in a first reaction solution containing an N-oxyl compound and a re-oxidizing agent for the N-oxyl compound; and a second oxidation step of oxidizing oxycellulose fibers obtained in the first oxidation step in a second reaction solution containing an oxidizing agent for oxidizing aldehyde groups.05-24-2012
20120214979PROCESS FOR THE PRODUCTION OF MICROFIBRILLATED CELLULOSE IN AN EXTRUDER AND MICROFIBRILLATED CELLULOSE PRODUCED ACCORDING TO THE PROCESS - The present invention relates to a process for the production of microfibrillated cellulose wherein the process comprises the steps of, providing a slurry comprising fibers, adding the slurry to an extruder, treating the slurry in the extruder so that the fibers are defibrillated and microfibrillated cellulose is formed. The invention further relates to a microfibrillated cellulose produced.08-23-2012
20120178921Pretreatment of Solid Biomass Material Comprising Cellulose with Ionic Liquid Medium - A process is disclosed for pretreating a solid, cellulose-containing biomass material. The pretreatment comprises contacting the solid biomass material with an Ionic Liquid medium under sub-solvating conditions. The pretreatment results in an opening up of the texture of the solid biomass material, while no or a limited amount of biomass material is dissolved. The Ionic Liquid medium preferably is an inorganic molten salt hydrate. The pretreated biomass material can be as a feedstock in any process that benefits from the change in texture resulting from the pretreatment.07-12-2012
20090023911CELLULOSE ACYLATE FILM, POLARIZING PLATE, OPTICAL COMPENSATION FILM, AND LIQUID CRYSTAL DISPLAY DEVICE USING THE SAME - A cellulose acylate film characterized in that it has a shear rate dependency of melt viscosity of 0.1 to 2 and/or a temperature dependency of melt viscosity of 0.1 to 3. The cellulose acylate film is capable of suppressing generation of cutting wastage at the time of cutting.01-22-2009
20120316330METHODS FOR INTEGRATED CONVERSION OF LIGNOCELLULOSIC MATERIAL TO SUGARS OR BIOFUELS AND NANO-CELLULOSE - The present invention relates to systems, compositions and methods for the conversion of lignocellulosic material to recalcitrant cellulose and hydrolyzed sugars and products produced therefrom (e.g., biofuel, nano-fibrillated cellulose). In particular, the invention provides novel fractionation processes configured to integrate production of hydrolyzed sugars (e.g., for biofuel production) and recalcitrant cellulose (e.g., for nano-fibrillated cellulose production) from lignocellulosic material and methods of using the same (e.g., in the production of biofuel and nano-fibrillated cellulose). The invention is also directed to nanocellulose with morphologies of having a less entangled and slightly branched fibril network, and having the same thermal stability as of that of the initial lignocellulose feedstock.12-13-2012
20120253030PROCESS FOR MANUFACTURING LOW-FIBRILLATING CELLULOSIC FIBER - A process for manufacturing low-fibrillating cellulosic fibers by a dry-jet-wet spinning process is provided. The cellulose is treated with a specific ionic liquid based solvent to produce the said fibers with fibrillating index less than or equal to (3).10-04-2012
20090018326CELLULOSE ACYLATE FILM AND METHOD FOR PRODUCING THE SAME - A cellulose acylate film, which contains 1% to 25% by mass of a plasticizer and has a cellulose acylate composition satisfying the inequalities of 0≦X≦2.5 and 2.1≦X+Y≦3.0 (in which X is a substitution degree of acetyl group, and Y is a substitution degree of at least one group selected from propionyl, butyryl, and phthaloyl groups), is transversely stretched under conditions of [preheating temperature>stretching temperature] and [preheating zone length/stretching zone length=0.1 to 10]. After the transverse stretching, the film is heat-fixed under conditions of [stretching temperature>heat-fixing temperature] and [heat-fixing zone length/stretching zone length=0.1 to 10].01-15-2009
20120322997PROCESS FOR PRODUCING DIFFERENTIATED CELLULOSE FIBERS COMPRISING AN ENZYMATIC TREATMENT IN ASSOCIATION WITH AN ACID STEP - The present invention refers to a process for producing cellulose of market eucalyptus fibers having distinct features through the use of at least one enzymatic treatment with hydrolytic enzymes, such as for example, xylanases, cellulases or mixtures thereof, in association to at least one acidic treatment step. These treatments may be applied into different steps of the fibers process producing, wherein all of them happen before drying.12-20-2012
20100234586PROCESS FOR THE CONVERSION OF CELLULOSE IN HYDRATED MOLTEN SALTS - A process for converting cellulose to glucose, said process comprising the steps of: providing a hydrated molten salt; contacting the hydrated molten salt with a cellulose-containing material to form dissolved glucose; removing the dissolved glucose from the hydrated molten salt.09-16-2010
20120330001METHOD OF IMMOBILIZING A PROTEIN OR MOLECULE VIA A MUTANT DEHALOGENASE THAT IS BOUND TO AN IMMOBILIZED DEHALOGENASE SUBSTRATE AND LINKED DIRECTLY OR INDIRECTLY TO THE PROTEIN OR MOLECULE - A mutant hydrolase optionally fused to a protein of interest is provided. The mutant hydrolase is capable of forming a bond with a substrate for the corresponding nonmutant (wild-type) hydrolase which is more stable than the bond formed between the wild-type hydrolase and the substrate and has at least two amino acid substitutions relative to the wild-type hydrolase. Substrates for hydrolases comprising one or more functional groups are also provided, as well as methods of using the mutant hydrolase and the substrates of the invention. Also provided is a fusion protein capable of forming a stable bond with a substrate and cells which express the fusion protein.12-27-2012
20120289692PROCESS FOR PURIFYING LIGNOCELLULOSIC FEEDSTOCKS - The present invention includes methods for removing contaminants, such as mineral salts, mineral acids, terpenoids, stilbenes, flavonoids, proteinaceous materials, metal impurities, ash and other organic products, from a lignocellulosic feedstock stream containing oxygenated hydrocarbons.11-15-2012
20130012695PROCESS FOR THE MANUFACTURE OF CELLULOSE-BASED FIBRES AND THE FIBRES THUS OBTAINED - A method for the spinning of a fibre comprising cellulose nano-fibrils aligned along the main axis of the fibre from a lyotropic suspension of cellulose nano-fibrils, the nano-fibril alignment being achieved through extension of the extrude fibre from a die, spinneret or needle, wherein the fibre is dried under extension and the aligned nano-fibrils aggregate to form a continuous structure and wherein the suspension of nano-fibrils, which has a concentration of solids of at least 7% wt, is homogenised using at least a mechanical, distributive mixing process prior to its extrusion. The fibrils used in this method can be extracted from a cellulose-rich material such as wood. The invention also related to a cellulose-based fibre obtained according to this method and to a cellulose fibre which contains at least 90% wt of crystallised cellulose.01-10-2013
20110263840PROCESS FOR THE MANUFACTURE OF CELLULOSE-BASED FIBRES AND THE FIBRES THUS OBTAINED - A method for the spinning of a fibre comprising cellulose nano-fibrils being aligned along the main axis of the fibre from a lyotropic suspension of cellulose nano-fibrils, said nano-fibril alignment being achieved through extension of the extruded fibre from a die, spinneret or needle, wherein said fibre is dried under extension and the aligned nano-fibrils aggregate to form a continuous structure. The fibrils used in this method can be extracted from a cellulose-rich material such as wood. The invention also related to a cellulose-based fibre obtained according to this method and to a cellulose fibre which contains at least 90% wt of crystallised cellulose.10-27-2011
20080221318Cellulose- or Lignocellulose-Containing Composite Materials Based on a Silane-Based Composite as a Binder - The present invention relates to a composite material based on (a) a cellulose- or lignocellulose-containing material and (b) a composite as a binder, the composite resulting from the reaction of at least the components (i) a glycidyloxypropylalkoxysilane, (ii) an aqueous silica sol having a solids content of >20% by weight, (iii) an organic acid as a hydrolysis catalyst and (iv) n-propyl zirconate, butyl titanate or titanium acetylacetonate as a crosslinking agent. The present invention furthermore relates to a process for the production of said composite materials and the use of a composite (b) as a binder for the production of wood-based materials.09-11-2008
20120253031PROCESS FOR MANUFACTURING LOW-FIBRILLATING CELLULOSIC FIBER - The present invention provides a process for producing low fibrillating cellulose fibers by a dry-jet-wet spinning process wherein cellulose is treated with a solvent containing imidazolium ionic salt in a spinneret maintained at a temperature of 100-120° C. and the spun fibers drawn to the coagulation bath containing ionic salt with the draw ratio less than 5, to produce fibers with fibrillating index less than or equal to 3.10-04-2012
20130131332METHOD FOR PRODUCTION OF CELLULOSE NANO CRYSTALS FROM CELLULOSE-CONTAINING WASTE MATERIAL - A process is disclosed for recovering pure cellulose from a cellulose-containing sludge, the process comprising treating a sludge cellulose source under conditions permitting dissolution of non-cellulose material and suspension of the cellulose, wherein said dissolution conditions do not alter cellulose morphology.05-23-2013
20100317843PROCESS FOR SEPARATING BIOMASS COMPONENTS - The present invention provides a process and System for Separation of biomass components into individual components such as cellulose, hemicellulose and lignin. The present invention provides a process for separating lignin in its native form. The cellulose obtained by the process of the present invention is highly reactive for saccharification.12-16-2010
20130184452WATERLESS DEGUMMING SYSTEM - A method and system for cleaning lignin and other gums from lignocellulosic fiber is disclosed. Lignocellulosic fiber is rapidly depressurized to a pressure lower than atmospheric pressure. The fiber is exposed to ionized air during the rapid depressurization. The fiber is then repressurized to a pressure equal to or greater than atmospheric pressure.07-18-2013
20110313147CHROMATOGRAPHIC MATERIAL FOR THE ABSORPTION OF PROTEINS AT PHYSIOLOGICAL IONIC STRENGTH - Ion exchange and hydrophobic interaction chromatographic materials are constructed by tethering a terminal binding functionality to a solid support via a hydrophobic linker. The backbone of the linker typically comprises sulfur-containing moieties. Suitable terminal binding functionalities are tertiary amines, quaternary ammonium salts, or hydrophobic groups. These chromatographic materials possess both hydrophobic and ionic character under the conditions prescribed for their use. The separation of proteins from crude mixtures at physiological ionic strength can be accomplished with a chromatographic material of this type by applying pH or ionic strength gradients, thereby effecting protein adsorption and desorption.12-22-2011
20110313146Optical-isomer-separating agent - According to the present invention, there is provided an enantiomeric isomer separating agent, which includes a polysaccharide derivative supported by particles of a support by chemical bonding, and has a concentration of eluted component (in terms of mass proportion), as determined through a liquid passing test under the following conditions, of 20 ppm or lower: (liquid passing test) (1) the enantiomeric isomer separating agent is packed into a column having a diameter of 1 cm and a length of 25 cm by a slurry method, (2) an organic solvent in which the polysaccharide derivative is soluble is used as a solvent, and passing of this solvent, whose temperature is set at 40° C., is initiated at a flow rate of 8 ml/min, (3) collection of the solvent passed is initiated 1 hour after the initiation of the liquid passing, the solvent is collected for 1 hour (480 ml), and the mass (M12-22-2011
20130203981NOVEL METHOD TO PRODUCT MICROCELLULOSE - The present invention relates to a process for producing microcellulose comprising hydrolyzing fibrous cellulosic material with an acid at an elevated temperature or acidifying fibrous cellulosic material followed by washing and hydrolyzing the washed cellulosic material at an elevated temperature to produce a microcellulose-hydrolysate mixture followed by separation of the microcellulose from the hydrolysate, wherein the mixture or separated hydrolysate or microcellulose is optionally neutralized, and wherein the microcellulose production is integrated to production of a pulp mill such that at least part of chemicals used in the acidification, acid hydrolysis and/or neutralization is produced by an integrated chemical recovery process of the pulp mill.08-08-2013
20120095206METHOD FOR PRODUCING CROSS-LINKED HYALURONIC ACID - A method for producing a cross-linked hyaluronic acid in accordance with the present invention comprises: (a) cross-linking at least one polymer at a temperature, from about 35° C. to about 60° C., for a reaction time of from about 0.1 hour to about 72 hours with a cross-linking agent; and (b) lowering the temperature in step (a) to form about 10° C. to about 30° C. for a reaction time of from about 48 hours to about 28 days to obtain the cross-linked hyaluronic acid, whereby, a cross-linking agent content in a product of the method can be decreased so the product does not require purification.04-19-2012

Patent applications in class Cellulose or derivative

Patent applications in all subclasses Cellulose or derivative