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JPH0655762B2 |
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JPH06206752A |
PURPOSE: To obtain a concrete blend composition having high fluidity and high packing properties, excellent in resistance to separation of material and reduced in bleeding by blending a water-soluble O-2,3-dihydroxypropyl cellulose or it...
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JPH0653817B2 |
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JPH0653762B2 |
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JPH06196022A |
PURPOSE: To obtain a high dielectric substance with moisture absorption lower than that in conventional use. CONSTITUTION: In this high dielectric substance, a compound selected from monosacharide, polysacharide, polyvinyl alcohol and th...
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JPH0651722B2 |
The process for preparing water-soluble mixed cellulose ethers proceeds in the following steps: (a) alkalization of the cellulose, (b) etherification of the alkali cellulose in the presence of a base, using at least one etherifying agent...
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JPH0651721B2 |
Ionically modified cellulose material in which the ionic moiety is linked to the cellulose moiety via the carbonyl group of the bridge member -CO-NH-CH2-O- is suitable for being employed as the stationary phase in processes for separatin...
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JPH0649722B2 |
Polysaccharide aldehydes having the general structuresuch as starch, cellulose and gum aldehydes, are useful for imparting wet, dry, or temporary wet strength to paper. They are prepared by a non-oxidative method which involves reacting ...
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JPH0649721B2 |
Disclosed is a process for the purification treatment of liquid reaction and/or washing media obtained in the preparation of cellulose ethers which comprises distilling and subsequently ultrafiltering the media. In the distilling step, t...
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JPH0647603B2 |
A manufacturing method for cellulose ether having a high degree of substitution characterized in that an etherifying agent represented by a general formula RCH2X (where R is aromatic group, heterocyclic group, vinyl group or ethynyl grou...
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JPH0647602B2 |
In modern processes for the preparation of cellulose ethers containing one or more types of substituents (such as MC, CMC, HEC, HPC, MHEC or EHEC), cellulose is reacted with etherifying agents in the presence of water, base and a mixture...
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JPH0645641B2 |
A process for the production of carboxyalkyl celluloses having an average degree of substitution of at least 1.0. The process comprises up to 3 stages, but without any intermediate purification. The preferred suspension medium is isoprop...
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JPH0643442B2 |
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JPH0639481B2 |
Modified cellulose reaction products, which are dispersible in aqueous media over a broad pH range without lump formation, are prepared by reacting water-soluble cellulose ether with a specified silane modifying agent in the amount of fr...
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JPH06136001A |
PURPOSE: To provide alkyl hydroxyalkyl cellulose ether containing sulfoalkyl groups, a method to prepare them, and construction material mixture containing the cellulose ether. CONSTITUTION: This alkyl hydroxyalkyl cellulose ether contai...
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JPH0626567B2 |
A dialysis membrane used for hemodialysis having a structure comprised of flat films, blown films or tubular threads of substitution-modified cellulose, in which the effects of complement activation and leukopenia are clearly reduced. Th...
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JPH0625201B2 |
Polysaccharide aldehydes having the formula Sacch-O-CH2- @@-CH2-O-Ar-CHO (I) or Sacch-O-CH2-Ar-CHO (II) such as starch, cellulose, and gum aldehydes, are useful as paper additives for imparting strength and as the granular or gelatinized...
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JPH0665301A |
PURPOSE: To provide a composition and its usage for preventing or curing colonic polyp. CONSTITUTION: The compound shown by the formula is administrated to patients having colonic polyp. In the formula, Q is a deprotonated residue of a p...
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JPH0611761B2 |
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JPH0625305A |
PURPOSE: To obtain esters and amides of substituted pyrrole acetic acids which are effective for inhibition and elimination of colonic polyps and are less in side effects. CONSTITUTION: Compounds represented by formula I (n is 0, 1; X is...
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JPH0625301A |
PURPOSE: To obtain esters and amides of substituted indenyl acetic acids which are effective in eliminating and inhibiting polyps and are useful as active ingredients of medicines which do not cause any severe side effects such as ulcer ...
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JPH0616701A |
PURPOSE: To prepare a cellulose ether having a good etherifying yield, an uniform distribution of substituents and a good anti-oxidative decomposition property from cellulose and an alkylating agent by using water-miscible cyclic ether a...
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JPH0586962B2 |
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JPH0586961B2 |
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JPH0582843B2 |
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JPH0582842B2 |
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JPH05310801A |
PURPOSE:To obtain an apparatus for blood treatment, such as a dialyzer, with which a phosphate ion can be easily removed, by using a modified cellulosic polymer obtained by reacting at least part of the hydroxyl groups of a cellulosic po...
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JPH0580481B2 |
A method of producing a water-insoluble alkali metal salt of carboxyalkyl cellulose such as CMC is disclosed. The method comprises reacting a water-soluble alkali metal salt of carboxyalkyl cellulose with an aliphatic hydroxycarboxylic a...
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JPH0580483B2 |
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JPH0580482B2 |
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JPH05287001A |
PURPOSE:To produce a water-soluble alkylcellulose ether having a high viscosity from cellulose having a relatively low degree of polymerization. CONSTITUTION:Cellulose is reacted with an etherifying agent in the presence of a base. The e...
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JPH05255401A |
PURPOSE: To provide oil-soluble polysaccharide palmitate esters and polysaccharide stearate esters. CONSTITUTION: Palmitate esters and stearate esters of polysaccharides (e.g. cellulose ethers and guars) are soluble in a mineral oil solv...
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JPH0565488B2 |
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JPH05506046A |
(57) [Summary] Since this publication is application data before electronic filing, summary data is not recorded.
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JPH0553801B2 |
Water-soluble polysaccharides, including cellulose ethers, containg pendent vicinal dihydroxy structure capable of cis geometry, which upon crosslinking with a polyvalent metal have shear-thermal stability characteristics of at least abo...
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JPH0551279B2 |
What are disclosed are polysaccharide derivatives of the formula in which n denotes a number from 100 to 12,500 and R denotes hydrogen, a carboxyalkyl or hydroxyalkyl group with 1 to 5 carbon atoms in the alkyl radical or a detectable mo...
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JPH0546361B2 |
impurities in cellulose ether compositions are removed by providing a functionally effective thickness of a cellulose ether composition to a filtration device, and contacting the thickness, in a manner such that substantial thickness is ...
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JPH0535161B2 |
Anionic, water-soluble cellulose ethers which are treated with a mixture of glyoxal and a sodium borate, preferably borax, readily disperse in aqueous solutions without clumping or agglomerating. These treated compounds can be formed by ...
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JPH0528259B2 |
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JPH0477002B2 |
A water-soluble carboxymethyl hydroxyethyl cellulose having a carboxymethyl degree of substitution of about 0.1 to about 0.25, preferably of about 0.15 to about 0.20, and having a hydroxyethyl molar substitution of greater than about 1.0...
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JPH0476361B2 |
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JPH0475921B2 |
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JPH0473441B2 |
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JPH04328101A |
PURPOSE:To obtain novel derivatives useful as a film base, a thickener, a binder, etc., by mixing an aqueous solution of carboxymethylcellulose with a THF solution of polytetrahydrofuran-trifluoromethanesulfonic acid salt and reacting th...
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JPH04328102A |
PURPOSE:To readily obtain the derivatives useful as a thickener, a binder, etc., by reacting carboxymethylcellulose with a trifluoromethanesulfonate of a poly(N-t-butylaziridine) having a cyclic ammonium salt group. CONSTITUTION:A t-buty...
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JPH0469642B2 |
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JPH0469641B2 |
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JPH0469161B2 |
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JPH0466881B2 |
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JPH0464323B2 |
PURPOSE:A polyol derivative useful in the field of electroluminescence, etc. having high dielectric constant, by subjecting a pyranose ring constituting cellulose to ring opening, followed by reduction, and cyanoethylation. CONSTITUTION:...
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