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7402668 |
Process of preparing alkylhydroxyalkylcellulose
A process of preparing alkylhydroxyalkylcellulose (e.g., methylhydroxyethylcellulose and methylhydroxypropylcellulose) by reaction of cellulose in the presence of alkali metal hydroxide with an...
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7351422 |
Hemostatic soluble cellulose fibers containing coagulating protein for treating wound and process for producing the same
Proposed is a novel soluble trauma-healing and hemostatic cellulose fiber capable of absorbing and readily dissolving hemorrhaging trauma loci when applied thereto and of promoting the hemostatic...
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7319146 |
Nonionic cellulose ether and its use
The present invention relates to a nonionic methyl ethyl hydroxyethyl cellulose ether having a flocculation temperature of 70-95° C., a DS-methyl of 0.1-0.8 and a DS-ethyl of 0.1-0.7. The...
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7262181 |
Water soluble cellulose etherified derivatives styptic materials
The present invention relates to hemostatic materials made of water-soluble cellulose ether derivatives, such as methylcellulose, ethylcellulose, hydroxyethylcellulose, and pharmaceutically...
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7244840 |
Admixture, extrudable hydraulic composition and method for the selection of admixture
A nonionic water-soluble cellulose ether is characterized in that when 3 pbw of the nonionic water-soluble cellulose ether is added to a mixture of 90 pbw of cordierite, 10 pbw of ordinary Portland...
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7151173 |
Admixture, extrudable hydraulic composition and method for the selection of admixture
A nonionic water-soluble cellulose ether is characterized in that when 3 pbw of the nonionic water-soluble cellulose ether is added to a mixture of 90 pbw of cordierite, 10 pbw of ordinary Portland...
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7098327 |
Dual-functional ion exchange resins from agricultural by-products
A process for the production of dual-functional ion exchange resins from lignocellulosic agricultural material involving anionization of the lignocellulosic agricultural material with citric acid...
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7005515 |
Process for preparing alkyl hydroxyalkyl cellulose ethers
The process for preparing an alkyl hydroxyalkyl cellulose ether comprises the steps of: a) alkalizing cellulose to obtain alkali cellulose, b) reacting alkali cellulose with an alkyl halogenide...
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6958393 |
Cellulose derivatives having gel-like rheological properties and process for the preparation thereof
A description is given of cellulose derivatives having gel-like rheological properties in aqueous solution characterized in that:
a) cellulose is alkalized with aqueous alkali metal...
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6939961 |
Method for the production of low-viscous water soluble cellulose ethers
A process for preparing low-viscosity water-soluble cellulose ethers by the oxidative decomposition of higher-viscosity cellulose ethers with hydrogen peroxide is described. The process involves:...
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6933381 |
Method of preparing modified cellulose ether
Process for the production of polysaccharide ethers, e.g. cellulose ethers, are disclosed wherein salts formed during the process, e.g., sodium nitrate or sodium acetate, are converted to their...
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6891034 |
Process for preparing alkylhydroxyalkyl cellulose
Described is a process of preparing alkylhydroxyalkyl cellulose, e.g., methylhydroxypropyl cellulose (MHPC). The process includes: (a) alkylating cellulose with an aqueous caustic solution...
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6843845 |
Admixture and extrudable hydraulic composition
An admixture comprising (A) a nonionic water-soluble hydroxyethyl cellulose and/or hydroxyethyl ethyl cellulose having a viscosity of at least 500 mPa·s as measured in a 1 wt % aqueous solution at...
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6602994 |
Derivatized microfibrillar polysaccharide
A method for producing derivatized microfibrillar polysaccharide, including but not limited to cellulose, derivatized by steric and/or electrostatic forces, where the electrostatic forces are...
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6531593 |
Method for production of cellulose derivatives and the resulting products
Cellulose derivatives are formed by first crosslinking cellulose and subsequently reacting the crosslinked cellulose with a reagent capable of forming a cellulose ether or ester. Many crosslinking...
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6482876 |
Agglomerates for the production of an aqueous binder system
The invention relates to an agglomerate containing at least one of the following water-soluble or water-dispersible materials as a bonding base polymer: carboxylized and/or alkoxylized starch,...
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6380381 |
Low-substituted hydroxypropyl cellulose
The present invention provides low-substituted hydroxypropyl cellulose exhibiting good granulation characteristics and tablet properties. Specifically, there is provided low-substituted...
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6320043 |
Process for preparing fine-particle polysaccharide derivatives
The invention relates to a new, particularly economic process for preparing pulverulent polysaccharide derivatives, in particular cellulose derivatives, having a thermal flocculation point; the...
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6261218 |
Process and apparatus for making low molecular weight cellulose ethers
There is a process for making a cellulose ether. The process comprises the following: a) alkalyzing a cellulose pulp; b) etherifying the alkalyzed cellulose pulp to form a cellulose ether; c)...
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6248880 |
Nonionic cellulose ether with improve thickening properties
The present invention relates to associative cellulose ethers with improved thickening effects, especially in paint. The improvement depends on the presence of a hydrophobic modifying group of the...
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6201070 |
Method for enhancing the toughness of cycloaliphatic epoxide-based coatings
Methods are disclosed for enhancing the toughness, e.g., resistance to cracking upon flexation, of coatings made from cycloaliphatic epoxide derivatives wherein the cycloaliphatic epoxide...
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6166119 |
Flowability additive
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6111011 |
Cellulose ethers containing butenyl groups and use thereof as protective colloids in polymerizations
Water-soluble, nonionic cellulose ethers selected from the group consisting of alkylcelluloses and hydroxyalkylcelluloses which are additionally substituted by butenyl groups are used as protective...
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6068697 |
Polysaccharide derivatives and hydraulic compositions
A polysaccharide derivative prepared by replacing all or part of the hydroxyl hydrogen atoms of a polysaccharide or polysaccharide derivative by (A) a hydrophobic substituent having a C 8 -C 43 ...
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6054511 |
High solids low viscosity polysaccharides
Hydroxyethylcellulose (HEC), hydrophobically modified hydroxyethylcellulose (HMHEC), hydroxypropylcellulose (HPC), methylhydroxypropylcellulose (MHPC), carboxymethylhydroxyethylcellulose (CMHEC),...
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5994531 |
Cellulose ethers containing 2-propenyl groups and use thereof as protective colloids in polymerizations
Water-soluble, nonionic cellulose ethers selected from the group consisting of alkylcelluloses and hydroxyalkylcelluloses having an average degree of polymerization of less than 900 which is...
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5898072 |
Aqueous suspension of a cellulose ether, method for the production thereof, and composition
The invention concerns an aqueous suspension of a non-ionic, water-soluble cellulose ether cross-linked with glyoxal, in the presence of an electrolytic salt which gives a pH value below 8.0 in...
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5840882 |
Process for preparing cellulose ethers with recovery of alkali
Cellulose ethers which contain hydroxyalkyl groups are prepared, with the recovery of sodium hydroxide, by cellulose being etherified with alkylene oxide in a water-containing organic suspension...
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5837864 |
Method for producing a suspension in water of a cellulose ether, and dry mixture suitable for use in the production of the suspension
In a method of producing a suspension of a nonionic cellulose ether that has no turbidity point, the water forming part of the suspension is mixed with a dry mixture containing a cellulose ether,...
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5827835 |
Thermally-gelling emulsions
Thermally gelling emulsion compositions which reversibly increase in either loss modulus or storage modulus, or both, upon contact with the eye, skin, mucous membrane or body cavity are disclosed....
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5814141 |
Liquid crystalline cellulose (ether) ethers as interferentially effective chromophoric substances
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...
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5804166 |
Low VOC hair sprays containing cellulose ethers
Disclosed are hair spray compositions containing non-ionic cellulosic ethers in a solvent base containing water and volatile organic solvent wherein the level of volatile organic solvent in the...
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5770528 |
Methylated hydroxypropylcellulose and temperature responsive products made therefrom
The present invention is directed to a method of producing methylated hydroxypropylcellulose (m-HPC). By controlling the degree of methylation, one can manipulate the lower critical solution...
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5743949 |
Stable aqueous wax dispersions
The present invention relates to stable aqueous wax dispersions comprising A) 5 to 65% by weight of microized wax and B) 0.01 to 7% by weight of polymeric carbohydrate derivatives as...
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5591844 |
Alkyl hydroxyalkyl cellulose ethers containing sulfoalkyl groups
The present invention relates to alkyl hydroxyalkyl cellulose ethers which contain a sulfoalkyl group as a further substituent, to a process for the preparation of these cellulose ethers and to...
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5500124 |
Process for the purifying working-up of reaction media and/or wash media obtained during preparation of cellulose ethers
The invention relates to a process for the purifying working-up of liquid reaction media and/or wash media obtained during preparation of cellulose ethers, which are insoluble in hot water, from...
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5493013 |
Process for preparing cellulose ethers with cyclic ethers as suspending agents
Process for preparing cellulose ethers with cyclic ethers as suspending agents. The present invention relates to a process for preparing cellulose ethers from cellulose and alkylating agents, in...
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5488104 |
Process for comminuting cellulose ethers
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...
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5463037 |
Process for producing mixed cellulose ether
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...
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5407919 |
Double-substituted cationic cellulose ethers
Double-substituted, water-soluble, cellulose ethers substituted with a cationic substituent and a hydrophobic substituent are disclosed. The levels of substitution for the cationic substituent and...
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5385607 |
Water-soluble sulphoalkyl hydroxyalkyl derivatives of cellulose and their use in gypsum- and cement-containing compounds
The invention relates to a new class of water-soluble ionic cellulose derivatives and their use as additive for gypsum- and cement-containing compounds.
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5360902 |
Process for producing methyl hydroxyalkyl cellulose ethers
The present invention relates to a process for producing methyl hydroxyalkyl cellulose ethers by alkalisation and etherification of celluloses, rinsing the methyl hydroxyalkyl cellulose ethers with...
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5358561 |
Use of water-soluble sulphoalkyl derivatives of cellulose in gypsum-and cement-containing compounds
The invention relates to water-soluble ionic cellulose derivatives and their use as additives for gypsum- and cement-containing compounds.
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5302196 |
Modified cellulose ethers and the use thereof in dispersion paints
The invention relates to water-soluble cellulose ethers, containing at least one fluorine-free radical attached via an ether link and selected from the group hydroxyethyl, hydroxypropyl, methyl,...
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5294702 |
Water-soluble polymerizable 3-allyloxy-2-hydroxypropylether of cellulose
This invention relates to water-soluble polymerisable 3-allyloxy-2-hydroxypropylethers of cellulose and to a process for their preparation.
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5278203 |
Method of preparing and improved liquid gelling agent concentrate and suspendable gelling agent
Water-soluble, polymer viscosifiers of aqueous solutions, also known as gelling agents, can be suspended in a hydrocarbon carrier fluid, such as, diesel to prepare a liquid gel concentrate. When a...
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5218107 |
Removal of undesirable material from water-soluble cellulose ether aqueous solutions
This invention is a process of removing water-soluble impurities from a water-soluble cellulose ether aqueous solution containing such water-soluble impurities comprising treating an aqueous...
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5196527 |
Porous ion-exchanged fine cellulose particles, method for production thereof, and affinity carrier
This invention relates to ion-exchanged fine cellulose particles, porous fine cellulose particles which can be advantageously used as an affinity carrier, and methods of production thereof. These...
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5182380 |
Dihydroxypropyl sulphoethyl celluloses, their preparation and their use
Water-soluble, reversibly gelable cellulose ethers containing sulphoethyl groups (DS-sulphoethyl) and dihydroxpropyl groups (MS-dihydroxypropyl).
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5177199 |
Water-soluble hydroxypropyl sulfoethyl cellulose derivatives (HPSEC) having a low degree of substitution and a process for their production
Water-soluble hydroxypropyl sulfoethyl cellulose derivatives having an average degree of substitution (DS) with sulfoethyl groups of <0.3 and a molar degree of substitution (MS) with...
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