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Patent Searching and Data


Matches 401 - 450 out of 2,187

Document Document Title
WO/1996/038484A1
The invention relates to oxidized polymeric carbohydrate ethers or mixtures thereof with a degree of polymerization of at least 10. These compounds possess an excellent sequestering and anticrustation activity and are therefore used with...  
WO/1996/026220A1
Cellulose particles that have cationic groups also on the inside.  
WO/1996/015154A1
The invention relates to a cationic polysaccharide, preferably in fibrous form, having superabsorbent characteristics, the polysaccharides being substituted by quaternary ammonium groups and having a ds of at least 0.5, preferably 0.5 to...  
WO/1996/014851A1
The invention relates to a method for reducing serum cholesterol levels in a patient which comprises administering to the patient an effective amount of a cationic cellulose derivative having quaternary ammonium groups attached to the ce...  
WO/1996/006864A1
A method is described for the chemical modification of pre-shaped hydrogels in non-aqueous medium. The conditions permit the reaction of highly expanded, porous hydrogel particles, such as spherical beads, using pseudo homogeneous reacti...  
WO/1996/000748A1
This invention is a process for comminuting a cellulose ether which comprises extruding a hydrated cellulose ether through a plurality of orifices, each orifice having a cross-sectional area of from 7.5 x 10-9 m2 to 1 x 10-6 m2, to form ...  
WO/1995/025127A1
A process for recovering salable cellulose ether solids in an aqueous slurry from a reactor wherein such cellulose ether solids are produced, or in an aqueous slurry from a centrifuge or filter wherein a portion of the cellulose ether so...  
WO/1995/018833A1
Polysaccharide derivatives containing unsaturated substituents and aromatic substituents, and their use for preparing stationary chiral phases suitable for separating isomers of chemical compounds, are disclosed.  
WO/1995/015342A1
Cellulose is reacted with a carboxymethylating agent to form a lightly carboxymethylated cellulose having a degree of substitution such that it is not soluble in water, for example up to 0.4 carboxymethyl group per anhydroglucose unit. T...  
WO/1995/011925A1
Disclosed is a method for producing a water-swellable, generally water-insoluble modified polysaccharide having improved age-stable absorption properties. The method involves forming a mixture of a modified polysaccharide, water, and, op...  
WO/1994/024169A1
The invention pertains to a process for the amidation of a material having at least one carboxyl-containing polysaccharide. The provided process involves a first step in which the carboxyl groups are reacted with an ammonium donor of the...  
WO/1993/020223A1
Haloalkanoic acid impurities are decomposed in the presence of certain surfactants carboxymethyl cellulose or thioglycollic acid salts which may contain them as unconverted reactants by contacting them with dehalogenase enzyme.  
WO/1993/013135A1
This invention is a process of removing water-soluble ionic impurities from a cellulose ether aqueous solution containing such water-soluble ionic impurities comprising treating an aqueous solution comprising a cold water-soluble, therma...  
WO/1993/008217A1
A process is disclosed for removing cellulose ether and other cellulose derivates from an aqueous solution/suspension. An effective and economical process that allows a considerably higher amount of cellulose derivate to be recovered fro...  
WO/1992/022587A1
The invention concerns alkyl ethers and/or alkyl esters of certain cell-wall polysaccharides whose alkyl chains can include ether groups and can be substituted with hydroxy, carboxyl and/or trialkylammonium groups. The invention also con...  
WO/1992/020349A1
A water insoluble, biocompatible composition that is formed by a method which combines, in an aqueous mixture, a polyanionic polysaccharide and an activating agent, under conditions sufficient to form the composition; a nucleophile may a...  
WO/1992/019652A1
A synthesis is described for the preparation of cationic polymer materials with a semisynthetic matrix, having superabsorption characteristics towards water and saline solutions. More particularly, cellulose cationic derivatives are desc...  
WO/1992/003167A1
A coating base for pharmaceutical film, which comprises lowly polymerized cellulose ether, preferably a highly white one prepared by causticizing a pulp with a copper number of 0.4 g or less, adding an etherifying agent thereto to form a...  
WO/1991/016906A1
A therapeutical composition comprises hydrolyzed carboxyalkyl cellulose, wherein alkyl is methyl, ethyl or propyl, optionally in salt form, which hydrolyzed carboxyalkyl cellulose has a mass average molecular mass (M(Boolean not)w) from ...  
WO/1991/014709A1
Disclosed is a process for preparing cellulose esters utilizing an acyl anhydride and trifluoroacetic anhydride as an impelling agent. The invention includes formation of a cellulose triester optionally followed by a hydrolysis step. Add...  
WO/1991/005807A1
A composite of carboxyalkyl ether of polysaccharide with magnetic metal oxide, which is very excellent in storage stability in the form of aqueous sol, lowly toxic, and useful as a medical material such as a nuclear medicine imaging agent.  
WO/1990/010495A1
The present invention features methods of making absorbent material which exhibit excellent absorption for saline and other liquids as well as being biodegradable. The methods of the invention form a particulate which can be stored in dr...  
WO/1990/010426A1
A new superabsorber which gels and cross-links as hydrated has been developed. The superabsorber contains a branched-chain polyanionic carbohydrate such as carboxymethylcellulose, a cross-linking agent, and a hydrophobic carboxylic acid....  
WO/1989/010940A1
New polysaccharide esters are disclosed, and more precisely esters of acidic polysaccharides chosen from the group formed by carboxymethylcellulose, carboxymethyl starch and carboxymethylchitin. These new esters and some esters of the ty...  
WO/1989/010941A1
Inter and/or intramolecular cross-linked esters of acid polysaccharides are disclosed in which a part or all of the carboxy groups are esterified with hydroxyl groups of the same molecule and/or of different molecules of the acid polysac...  
WO/1989/008119A1
Biolabile prodrug compounds of the formula (1): PS-O-A-(CH2)n-B-D, wherein PS-O represents an alkoxide residue of any of the free hydroxy groups of a polysaccharide (PS-OH) compound with molecular weight (Mw) of from 40,000 to 5,000,000 ...  
WO/1988/007059A1
A process for making a cellulose ether (eg HEC) having improved bioresistance is provided. The process consists of two stages, in a first stage cellulose is etherified in the presence of a boron containing compound to an MS value in the ...  
WO/1988/002375A1
A process for reducing the dust content of cellulose ethers comprises reacting the cellulose ether with an aggregating agent comprising (1) a polypropylene glycol or a propoxylated alcohol and (2) an ethylene oxide/propylene oxide copoly...  
WO/1986/004621A1
A fibrous, cationic cellulose pulp product and the method for preparing it. A water suspension of cellulosic fiber is treated under alkaline conditions with a polymer of epichlorohydrin and dimethylamine. Up to 30 molar percent of the DM...  
WO/1980/002374A1
Composition for the controlled release administration of a biologically active compound to an animal, comprising a combination of the biologically active compound and hydroxyalkyl starch.  
JP6267078B2  
JP6259717B2  
JP6259716B2  
JP2017221133A
[Subject] It aims at providing a cellulose structure which has the new characteristic. [Means for Solution] In composition of cellulose using cello dextrin phosphorylase (CDP), a cellulose three-dimensional structure which has the new ch...  
JP2017218493A
[Subject] In order to maintain a dispersion state of paints in solution containing paints, CNF and pigment dispersion liquid manufactured by a manufacturing method and this method of cellulose nanofiber and pigment dispersion liquid (CNF...  
JP6247283B2  
JP6247321B2  
JP2017214439A
[Subject] It is high viscosity and gel strength provides a manufacturing method of Alkyl cellulose which is not too expensive. [Means for Solution] A process of carrying out churning mixture of cellulose pulp and the first alkali-metal-h...  
JP2017536447A
The present invention relates to the method of manufacturing microfibril-ized cellulose. Here, the suspension which contains a cellulose derivative in the liquid phase containing an organic solvent is prepared. The suspension of a cellul...  
JPWO2017073626A1
When alcoholic solvent (C) is mixed with different polymer (B) from an ether system cellulose derivative (A) and an ether system cellulose derivative, In the system to which the solvent of each phase which carried out phase separation to...  
JP6237251B2  
JP6235912B2  
JP6230860B2  
JP6231613B2  
JP6228707B1
[Subject] When you consider it as dispersion liquid, provide acid type carboxymethyl-ized cellulose nanofiber which viscosity carried out desalination processing of the introduced carboxymethyl group highly too much, and used as an acid ...  
JP6227914B2  
JP6224711B2  
JP2017193701A
[Subject] Offer of waterproof adhesives suitable in order to combine material of wood, paper, corrugated paper, or other cellulose. [Means for Solution] A hydroxyalkyl group respectively combined with cellulose via an ether bond, And it ...  
JP2017193627A
[Subject] When it uses as a packaging material and an inner side is with low humidity and high humidity, provide an eco-friendly humidity response moisture-permeable plastic sheet which manufacture can be easy and can form safely greatly...  
JP2017186557A
[Subject] In the amount of addition of necessary minimum water, Bulk density provides the method of manufacturing cheaply high powdered water solubility nonionic cellulose ether stably. [Means for Solution] A process of making an etherif...  

Matches 401 - 450 out of 2,187