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JP3007622B1 |
[wrap up] [Task] Provided is a method for producing a low-viscosity polysaccharide derivative aqueous solution capable of increasing the concentration with low viscosity. 100% by weight of a polysaccharide derivative having a viscosity o...
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JP2000026212A |
To provide antimicrobial particles capable of keeping its own antimicrobial property for a long period. The antimicrobial particles comprise a salt obtained by reacting an anionic hydrophilic macromolecule with an antimicrobial quaternar...
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JP3001401B2 |
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JP3002867B2 |
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JP3002916B2 |
A process for producing a mixed cellulose ether comprising reacting a starting cellulose ether with an etherifying agent is disclosed, wherein said starting cellulose ether comprises at least 18 mol% of a 6-substituted glucose unit and a...
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JP2000016901A |
To obtain the subject powder, capable of keeping its antimicrobial effect for extended periods. This antimicrobial powder comprises an antimicrobial agent composed of anionic, hydrophilic polymer and salt of quaternary ammonium showing a...
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JP2000007702A |
To obtain hydroxypropyl cellulose excellent in solubility in an alcohol and in water by a simple reaction process by using a specified amt. (based on cellulose) of a hydrophilic org. solvent in etherifying an alkali cellulose, obtd. by t...
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JP2000001501A |
To stably obtain a high-substitution-degree objective substance by heightening the utilization efficiency of an alkali in the alkalification reaction by dissolving cellulose by mixing with 1,3-dimethyl-2-imidazolidinone and lithium chlor...
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JP2994956B2 |
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JPH11515063A |
The invention relates to paper and similar products made with at least a portion of the papermaking furnish being essentially water insoluble carboxyethyl cellulose fibers. A cationic additive material, such as a polyamide epichlorohydri...
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JP2990606B1 |
[wrap up] [Task] To produce a polysaccharide derivative whose aqueous solution shows high reproducibility and high viscosity at a low concentration by a simple operation. A method for producing a polysaccharide derivative by reacting a p...
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JP2980406B2 |
The instant invention relates to methacrylate functionalized hydroxyethyl cellulose which is crosslinked with conventional vinylic monomers to form soft hydrogel contact lenses possessing high oxygen permeability, wettability, and mechan...
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JP2971938B2 |
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JP2974123B2 |
To provide a carboxymethylcellulose ether alkali metal salt (CMC) which can give a dried powder having a uniform particle distribution, suppressed in the formation of a fine powder and having excellent quick water solubility, a high bulk...
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JP2966769B2 |
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JP2958373B2 |
New polysaccharide esters are disclosed, and more precisely partial esters of acidic polysaccharides chosen from the group formed by carboxymethylcellulose, carboxymethyl starch and carboxymethylchitin. These new esters and some esters o...
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JP2950868B2 |
Water-soluble, cellulose ether polymers having (a) at least one substituent selected from the group consisting of hydroxyethyl, hydroxypropyl, and methyl radicals and (b) two or more hydrophobic radicals having 6 to 20 carbon atoms, in w...
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JPH11246601A |
To provide an industrially advantageous method for producing an acid type carboxymethyl cellulose by which the acid type carboxymethyl cellulose can be mass-produced from sodium carboxymethyl cellulose as a raw material according to simp...
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JP2941324B2 |
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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JPH11228601A |
To obtain a nonionic type, water-soluble, modified cellulose having free OH group, useful as a thickening agent for aqueous solutions, binders and coating by reacting water-soluble cellulose or the like with a multifunctional isocyanate ...
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JP2937376B2 |
A sustained release pharmaceutical pellet composition suitable for treating pain-associated conditions in patients comprises a core element including at least one active ingredient having an aqueous solubility of at least 1 in 30; and a ...
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JP2923745B2 |
A latex compsn. comprises (i) a latex polymer; (ii) a crosslinkable, cellulosic additive comprising a cellulose ether substd. with about 0.001-0.1 mole per mole of cellulose ether of a hydrophobic substit. comprising an alkene portion ha...
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JP2918011B2 |
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JP2916238B2 |
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JP2915044B2 |
The calorie content of a foodstuff composition is reduced by substituting a mixture of oligomers derived from degradation of a cellulose derivative for at least a portion of the high calorie ingredient of the foodstuff. The mixture of ol...
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JP2895084B2 |
In a process for isolating cellulose ethers, especially cellulose ethers with plastic properties and/or high flocculation point, from a cellulose ether suspension in which the cellulose ethers are separated out as filter cake by pressure...
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JPH11106402A |
To obtain the subject mixture to be added to a ground drilling fluid, e.g. drilling mud, used for ground drilling for construction or civil engineering works by including specific quantities of hydrocarbon-based liquid, sodium salt of ca...
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JPH11504071A |
Disclosed is a method for producing cellulose derivatives wherein cellulose is impregnated with an alkali solution, the impregnated cellulose is selectably pressed out, and the cellulose undergoes a substitution or addition reaction, whe...
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JP2872955B2 |
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JP2872952B2 |
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JPH1121301A |
To obtain hydroxypropylcellulose in a manner that the solvent can be easily recycled by reacting an alkali cellulose with propylene oxide in a reaction solvent being an aliphatic ketone having a specified number of carbon atoms. The alip...
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JPH1112304A |
To obtain the subject derivative that manifests high thickening properties with low viscosity and is stable with reluctance to accept the influence of metal salts and temperature by substituting the hydrogen atoms in polysaccharide hydro...
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JP2846823B2 |
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JPH11500482A |
Cellulose particles are described that have cationic groups in their interior. In one aspect, at least 10%, and preferably 50% or more, of the cationic groups are present within the particle interior. Also disclosed are particular combin...
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JPH115801A |
To obtain a body care composition, good in compatibility with a salt and solubility in a certain kind of solvent and useful as a shampoo, etc., having the resistance to alkaline conditions by including a specific water-soluble polysaccha...
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JP2840999B2 |
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JPH10324701A |
To obtain the subject new compound characterized by the structure in which the carboxy and hydroxy groups are crosslinked with each other by the lactone or intramolecular ester bond, useful for sanitary or surgical products, cosmetics, m...
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JPH10309660A |
To provide a finishing abrasive high in purity and excellent in stability and reproducibility by forming it of an aqueous solution of water soluble cellulose and water soluble amin of vapor pressure at a specific temperature less than a ...
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JPH10509753A |
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...
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JP2800061B2 |
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JP2800062B2 |
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JP2800984B2 |
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JP2799257B2 |
Water-soluble, reversibly gelable cellulose ethers containing sulphoethyl groups (DS-sulphoethyl) and dihydroxpropyl groups (MS-dihydroxypropyl).
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JP2792612B2 |
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JPH10508325A |
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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JP2784604B2 |
Water soluble nonionic cellulose ethers are provided, containing mixed alkylphenoxyalkyleneoxy-2-hydroxy propylene groups, having hydrophilic units composed of (a) alkyleneoxy groups of two or three carbon atoms, in a number from zero to...
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JPH10204101A |
To provide a water-absorbing material which has high biodegradability and is excellent in the ability to absorb an electrolyte solution and a process for producing the same. This material comprises a polycarboxylic acid cellulose derived...
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JPH10158301A |
To obtain a carboxymethylcellulose ether alkali salt excellent in chemical resistance. This carboxymethylcellulose ether alkali salt has a viscosity of 100-10,000cps in a 1% aqueous solution and a degree of etherification of 0.60-1.00mol...
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JPH10152501A |
To provide both a method for pulverizing and drying a material containing a wetted cellulose ether and an apparatus therefor. This method for pulverizing and drying a cellulose ether comprises dividing a gas stream into three ones, intro...
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JP2756780B2 |
The invention relates to a liquid crystalline, photo cross-linkable main-chain polymer used as interferentially effective, chromophoric substance for colored paints, in which the main mesogenic groups are disposed at least approximately ...
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