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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...
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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...
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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 ...
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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...
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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.
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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...
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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...
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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...
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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.
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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...
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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...
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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...
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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...
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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...
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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...
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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 ...
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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...
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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.
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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...
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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....
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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...
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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...
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WO/1989/009651A1 |
Porous fine cellulose particles advantageously usable as fine particles of ion-exchange cellulose and affinity carriers, and a process for their production are disclosed. The fine particles have such an excellent pressure resistance that...
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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 ...
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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 ...
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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...
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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...
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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.
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JP7483673B2 |
The present invention is a diblock-type oligomer, which has a pyranose block and an alkyl pyranose block and is represented by formula (I) in figure 1 (in formula (I), each R1 independently represents a methyl or an ethyl, m is 1.0 to 3....
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JP7481812B2 |
Carboxymethyl cellulose or a salt thereof is adjusted to a form such that D10 is 90 μm or higher, D50 is 120-470 μm, and D90 is 500 μm or lower, where D10, D50, and D90 are, respectively, the 10% cumulative, 50% cumulative, and 90% cu...
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JP7480776B2 |
The present invention relates to a nanocellulose dispersion liquid, and provides a nanocellulose dispersion liquid free from the concern of adverse effects caused by counterions, and a method for providing the dispersion liquid without u...
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JP7478598B2 |
The present invention relates to a composition capable of improving properties of cleaning a dirt during cleaning.The composition of the present invention is a composition containing a modified hydroxyalkyl cellulose (A) and a cationic s...
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JP7466888B2 |
This cellulose derivative has a degree of methyl group substitution of 1.0 or higher and a degree of octyl group substitution of from 0.01 to less than 0.6.
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JP2024051836A |
The present invention provides a method for producing carbamate cellulose fibers that can be mass-produced. [Solution] In producing carbamate cellulose fibers, a pulp sheet containing urea is heated by passing it between a pair of rolls ...
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JP2024051046A |
The present invention provides a bacterial cellulose composite powder that can be uniformly dispersed and develop viscosity even in liquids containing salts without mechanical stirring. [Solution] In the bacterial cellulose composite pow...
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JP2024043877A |
The present invention provides a novel cellulose gel electrolyte. [Solution] The ionic liquid includes an ionic liquid and cationized cellulose, the cation moiety of the ionic liquid includes one or more cations selected from the group c...
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JP7454942B2 |
To realize particles having excellent tactile characteristics with carboxymethyl cellulose having excellent biodegradability.The carboxymethyl cellulose particles of the present invention have sphericity of 0.85 or larger, an average par...
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JP2024039377A |
The present invention provides a nucleic acid adsorbent with high nucleic acid adsorption performance for adsorbing nucleic acids in a liquid, and a method for producing the same. [Solution] The present invention includes a base material...
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JP2024037325A |
The present invention provides a method for simply and efficiently producing a cellulose derivative with significantly reduced alkali metal content. [Solution] A cellulose derivative having the structural unit represented by (c) and havi...
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JP7446293B2 |
A personal care composition is provided, comprising: a cosmetically acceptable carrier; a cosmetically acceptable silicone; a modified carbohydrate polymer; wherein the modified carbohydrate polymer comprises a cellulose ether base mater...
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JP2024028706A |
The present invention provides fibrillated chemically modified cellulose fibers that are used as additives for paper manufacturing and have a lower degree of fibrillation than cellulose nanofibers. [Solution] Cellulose type I has a cryst...
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JP2024025563A |
The present invention provides a cellulose derivative capable of forming a liquid crystal film having novel polarizing properties. A cellulose derivative containing a hydroxyl group, in which a portion of the hydroxyl group is substitute...
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JP7436282B2 |
To provide a new method of manufacturing an anion modified cellulose nanofiber from an anion modified cellulose.An anion modified cellulose nanofiber is manufactured by fibrillating an anion modified cellulose by using a cavitation jet f...
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JP7430037B2 |
To provide a cellulose derivative capable of providing a film higher in chlorine resistance and alkali resistance than a cellulose triacetate film, and a molded body obtained from the same.There is provided a cellulose derivative represe...
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JP2024504828A |
Carboxymethylcellulose with improved storage stability is produced by a) reacting cellulose with an alkalizing agent in the presence of water and 5, one or more organic solvents, the process comprising: a) reacting cellulose with an alka...
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JP7424756B2 |
To provide a method for efficiently producing a dispersion of an anionically modified cellulose nanofiber using an organic solvent as a dispersion medium, and to provide a material used for the method.A hydrophobizing agent is added to a...
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JP2024006983A |
[Problem] The object of the present invention is to provide a temperature-responsive polymer that is derived from a natural material, has an LCST of less than 37°C, and has cell adhesive properties by itself, and a temperature-responsiv...
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JP7414685B2 |
There is provided a method for producing a depolymerized cellulose ether, the method suppressing the formation of coarse aggregates during the contact with an acid aqueous solution in a depolymerization reaction, and reducing the amounts...
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JP7414686B2 |
There is provided a method for producing a depolymerized cellulose ether having yellowness reduced. More specifically, there is provided a method for producing a depolymerized cellulose ether comprising a depolymerization step of depolym...
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JP7412899B2 |
To provide a paper having excellent mechanical property and air infiltration resistivity.The microfibrillated cellulose fiber has a mean fiber length measured by a fiber analyzer of 0.2 mm or over and a fibril area of 1.5% or over.SELECT...
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