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JP2514389B2 |
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JPH08176201A |
To obtain a process for producing a low-mol.-wt. cellulose ether having a high storage stability by irradiating a mixture comprising a high-mol.-wt. cellulose ether and a base with an accelerates electron beam. A mixture comprising a hig...
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JPH08169901A |
PURPOSE: To obtain a new cellulose derivative excellent in chemical stability and in dispersibility of the powder thereof. CONSTITUTION: This cellulose derivative is represented by the formula, wherein A is a residue of a cellulose deriv...
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JP2509739B2 |
Cationic polysaccharide derivatives are prepared by reacting a polysaccharide with a polycationic reagent having one polysaccharide reactive group and at least two cationic groups. Suitable reagents include polycationic alkyl, aryl alkar...
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JPH08154643A |
PURPOSE: To obtain the subject pack effective in both of cold insulation and heat insulation and keeping the temperature of a foodstuff carried from a place of production by packing an aqueous solution having property causing gelation by...
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JPH08146601A |
PURPOSE: To provide the photosensitive resin composition high in sensitivity and resolution and good in the dispersibility of a fluorescent material and the like and superior in water-solubility and water developability by incorporating ...
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JPH0859891A |
PURPOSE: To obtain a novel solid compsn. which functions as an absorbent material by crosslinking a polysaccharide (e.g. a cellulosic material or polygalactomannan) with a specific crosslinker. CONSTITUTION: This solid absorbent compsn. ...
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JPH0816046B2 |
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JPH0813841B2 |
Disclosed are novel sodium salts of carboxymethylcellulose (CMC) prepared from a cellulose furnish having a degree of polymerization (D.P.) of greater than 1,000 and having a degree of substitution (D.S.) of 0.2 to 0.9 characterized in t...
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JPH0841101A |
PURPOSE: To produce a low-mol.-wt. polysaccharide ether which can be used in binders for improving adhesive power and film-forming properties by subjecting a relatively high-mol.-wt. polysaccharide ether to oxidative degradation. CONSTIT...
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JPH0841102A |
PURPOSE: To obtain a product having desired particle size distribution, flowability, and bulk density from a cellulose ether having a finely fibrous or wad-like or woolly structure. CONSTITUTION: A process for screening a cellulose ether...
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JPH089680B2 |
Hydroxyethylcellulose (HEC), hydrophobically modified hydroxyethylcellulose (HMHEC), hydroxypropylcellulose (HPC), methylhydroxypropylcellulose (MHPC), carboxymethylhydroxyethylcellulose (CMHEC), guar, starch, xanthan, hydroxypropylguar ...
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JPH0827201A |
PURPOSE: To obtain the subject composition capable of producing a powdery or granular product almost free from insoluble material and excellent in water solubility without performing complicated process for dissolving, drying and crushin...
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JPH07121961B2 |
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JPH07121962B2 |
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JPH07119242B2 |
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JPH07119241B2 |
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JPH07330801A |
PURPOSE: To obtain a cellulosic derivative which has specific average substitution degrees of nitrate and carboxymethyl ether groups as well as a haze value lower than a certain level, thus is excellent in transparency, solubility and co...
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JPH0794481B2 |
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JPH07241406A |
PURPOSE: To obtain an anonic polymer flocculant having an immediate effect by using carboxymethyl cellulose insoluble in water but swellable in water as the base of a flocculant. CONSTITUTION: Carboxymethyl cellulose insoluble in water b...
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JPH07508161A |
PCT No. PCT/GB93/00628 Sec. 371 Date Nov. 21, 1994 Sec. 102(e) Date Nov. 21, 1994 PCT Filed Mar. 26, 1993 PCT Pub. No. WO93/20223 PCT Pub. Date Oct. 14, 1993.Haloalkanoic acid impurities are decomposed in the presence of certain surfacta...
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JPH0778081B2 |
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JPH0771627B2 |
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JPH0764881B2 |
Novel chemically modified anionic polysaccharides which contain acid radicals of the formula attached to the polysaccharide component, wherein R1(-) is carboxyalkyl or dicarboxyalkyl containing 1 to 5 carbon atoms in the alkyl moiety, or...
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JPH0751601B2 |
Higher reaction efficiencies are seen in cellulose etherification reactions when the reagents are continuously added to alkali cellulose at elevated temperatures. In particular, mixed hydroxyalkylcellulose ethers are prepared with higher...
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JPH0747096B2 |
The present invention relates to a process and a device for selectively separating the solvents employed in the preparation and purification of products. In this connection the different solvents are removed from the product to be treate...
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JPH0790121A |
PURPOSE: To obtain a CMC gel which is free from syneresis and has a high gel strength. CONSTITUTION: A gel is produced by reacting a sodium salt of carboxymethylcellulose (hereunder referred to as CMC) with a salt of a di- or trivalent m...
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JPH0725941B2 |
A composition of matter capable of being formed into articles having substantial dimensional stability comprising a) destructurized starch, and b) at least one polymer selected from the group of polysaccharides which have been chemically...
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JPH0768272A |
PURPOSE: To enable ultrafiltration at a substantially high concn. ratio by separating gelatinized cellulose ethers from an aq. medium of which has a temp. above the gel points of the hot water-insoluble cellulose ether by a specified mea...
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JPH0770203A |
PURPOSE: To provide a pulverization process for hydroxycarboxylic acid type cellulose derivative through simplified steps with industrial advantage. CONSTITUTION: Hydroxycarboxylic acid type cellulose derivative is dispersed in water and...
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JPH0720547B2 |
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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JPH0748401A |
PURPOSE: To obtain a sodium carboxymethylcellulose having high printing viscosity index(PVI) or thixotropic property and low viscosity. CONSTITUTION: A sodium carboxymethylcellulose having a 2% aqueous solution viscosity of 1,000-100,000...
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JPH0713081B2 |
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JPH0713082B2 |
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JPH0725901A |
PURPOSE: To obtain carboxymethyl ether salts having a very little insoluble portion to water, capable of enhancing the utilization ratio of etherizing agent to increase the degree of substitution in carboxymethyl groups, by using sea alg...
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JPH0699484B2 |
1. A chemically modified polysaccharide which is obtainable from crosslinked dextrin, uncrosslinked or crosslinked dextran or uncrosslinked or crosslinked agarose, which contains alpha-glycosidic linkages and ionic components which are a...
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JPH0683782B2 |
A method for preventing coagulation of powder, characterized in that a water-soluble cellulose ester is incorporated as an anticoagulant to the powder.
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JPH06298803A |
PURPOSE: To provide a reproducible and controllable method for easily reducing the molecular weights of various polymers whereby the results of molecular reduction can be predicted. CONSTITUTION: This is a method for the controlled molec...
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JPH0681761B2 |
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JPH0681762B2 |
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JPH0678364B2 |
Polysaccharides, including hydroxyethyl cellulose, having alkyl-aryl hydrophobic substitution, provide latex compositions, such as paints, with improved rheology and stability. Improved processes for producing such polysaccharides are al...
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JPH0678361B2 |
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JPH0670081B2 |
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JPH0670082B2 |
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JPH0667963B2 |
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JPH06227965A |
PURPOSE: To obtain a liposome composition stable over a long period. CONSTITUTION: The liposome composition contains liposome and a hydrophobic modified cellulose ether having 8-24C alkyl group.
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JPH0660201B2 |
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JPH06220101A |
PURPOSE: To obtain a chemically and biologically stable sulphoalkylcellulose derivative having a specific substitution degree by sulphoalkyl groups, which does not react with dyestuffs, exhibit excellent printing properties, and does not...
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JPH0655761B2 |
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JPH0655763B2 |
The process for preparing mixed cellulose ethers proceeds in the following steps: (a) alkalizing of the cellulose, (b) etherifying of the alkali cellulose in the presence of a base by using at least one etherifying agent which requires, ...
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