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4321367 |
Method for the preparation of cross-linked polysaccharide ethers
In the preparation of etherified polysaccharides, the inclusion of a polyhalo methane or an alkylene dihalide in the etherification reaction mixture yields a water-soluble, cross-linked product...
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4316982 |
Process for reducing the viscosity of cellulose ethers by means of ozone and application thereof
This invention relates to a process for reducing the viscosity of cellulose ethers by reacting a water-soluble cellulose ether with ozone in the presence of water, wherein said cellulose ether...
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4250306 |
Process and equipment for preparing swellable cross-linked carboxyalkylcelluloses from natural cellulose or cellulose hydrate and use thereof
This invention relates to a process for preparing swellable cross-linked carboxyalkylcelluloses by reacting cellulose, a carboxyalkylating etherifying agent, and a cross-linking agent in an aqueous...
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4250305 |
Process for preparing cellulose ether
A process for preparing a cellulose ether which comprises reacting celluloses untreated or treated with an aqueous solution of alkali hydroxide with an etherifying agent in the presence of an...
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4248595 |
Process for preparing swellable cross-linked carboxyalkylcelluloses, in the form of fibers, from cellulose hydrate and use thereof
This invention relates to a process for preparing swellable cross-linked carboxyalkylcelluloses in the form of fibers, by reacting cellulose, a carboxyalkylating etherifying agent, and a...
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4243802 |
Surfactant-soluble cellulose derivatives
Cellulose ethers containing an amount of hydroxypropyl, hydroxyethyl, or methyl radicals such that they are normally water soluble are further modified with C 12 to C 24 hydrocarbon radicals to a...
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4228277 |
Modified nonionic cellulose ethers
Cellulose ethers are disclosed which have sufficient nonionic substitution to render them water soluble and which are further modified with a C 10 to C 24 long chain alkyl group in an amount...
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4200736 |
Preparation of water-insoluble carboxymethyl cellulose absorbents
A process for the preparation of a substantially water-insoluble, particulate sodium salt of carboxymethyl cellulose, suitable for use as an absorbent in tampons and other catamenial devices or the...
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4175183 |
Hydroxyalkylated cross-linked regenerated cellulose and method of preparation thereof
The invention relates to a novel water insoluble hydroxyalkylated cross-linked regenerated cellulose and a method for its preparation. The product is characterized by having outstanding swelling...
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4144179 |
Composition for treating low temperature subterranean well formations
The present invention relates to a composition for treating low temperature subterranean formations using novel gelled aqueous compositions wherein the treating composition is introduced into the...
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4107426 |
Process for treating cellulose
A water-repellent cellulose and articles comprising the water-repellent cellulose are disclosed together with a process and apparatus for preparing the same. The water-repellent cellulose is...
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4100094 |
Novel cellulose ethers and detergent compositions containing same
Novel cellulose ethers having a molecular weight from 3000 to 10,000 and a methyl degree of substitution of from 1.8 to 2.7 are especially useful as soil release agents in detergent compositions.
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4084060 |
Process for the synthesis of hydroxyethyl cellulose with improved resistance to enzyme catalyzed hydrolysis
A process for the synthesis of hydroxyethyl cellulose having improved resistance of enzyme catalyzed hydrolysis is provided by employment of a controlled, optimum amount of available water for...
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4076935 |
Grinding method for cellulose
A method of reducing the particle size of cellulose compounds selected from the group consisting of cellulose and ether derivatives thereof which comprises grinding said compounds in a vibration...
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4075279 |
Process for the manufacture of swellable cellulose ethers
This invention relates to an improvement in the process for the manufacture of water-absorbing, but largely water-insoluble cellulose ethers, wherein cellulose is etherified with a halogen fatty...
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4068067 |
Process for the production of water-adsorbing cellulose ethers
This invention relates to an improvement in the process for the production of water-adsorbing, but at least partially water-insoluble cellulose ethers in which cellulose is alkalized in a liquid...
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4068068 |
Process for the manufacture of water-absorbing cellulose ethers
This invention relates to an improvement in the process for the manufacture of water-adsorbing but at least partially water-insoluble cellulose ethers in which cellulose is alkalized in a liquid...
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4061859 |
Viscosity reduction of cellulose derivatives
In the method of making low molecular weight cellulose ethers and esters by contacting such ethers or esters of higher molecular weight with HCl or other hydrogen halide gas, yellowing of the...
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4048433 |
Cellulose ethers having a low molecular weight and a high degree of methyl substitution
Novel cellulose ethers having a molecular weight from 3000 to 10,000 and a methyl degree of substitution of from 1.8 to 2.7 are especially useful as soil release agents in detergent compositions.
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4044766 |
Compressed catamenial tampons with improved capabilities for absorbing menstrual fluids
This invention is directed to a compressed catamenial tampon made up of a mass of absorbent fibers having intermixed therein a quantity of carboxymethylcellulose fibers containing free-acid...
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4020271 |
Crosslinked phosphonoalkyl cellulose and absorbent devices incorporating same
Alkali metal and ammonium salts of crosslinked phosphonoalkyl cellulose are described which have a phosphorous content of from about 1.5% to about 4.0% by weight and a degree of crosslinking...
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4013821 |
Process for preparation of mixed cellulose ethers containing 2,3-dihydroxypropyl ether groups
A process for the manufacture of cellulose ethers is characterized in that cellulose ethers which contain one or several alkyl, hydroxyalkyl, or carboxyalkyl substituents and which have a total...
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3971379 |
Absorbent hydrophilic cellulosic product
An absorbent body is provided for use in such products as catamenial napkins and tampons, diapers, wound dressings and the like, which body incorporates hydrophilic, wet resilient, swellable,...
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3959080 |
Carrier matrix for the fixation of biochemically effective substances and process for the preparation thereof
Biochemically active compounds e.g., proteins and particulate biological materials such as bacteria and viruses, are immobilized on a water-swellable or water-insoluble matrix by covalent bonding...
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3910993 |
Aryl phosphonous acids useful as U.V. stabilizers
Compounds of formula I, ##SPC1## in which R signifies alkyl, cycloalkyl, alkylcycloalkyl, cycloalkylalkyl, alkylcycloalkylalkyl or aralkyl, all unsubstituted or substituted by halogen, any phenyl...
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3885575 |
Manufacture of a smoking material
A method for manufacture of a smoking material is disclosed which involves impregnating a non-toxic carbohydrate base material with 2.5-10% by weight of a degradation catalyst in aqueous solution,...
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3880831 |
Process of producing carbamoylalkyl derivatives of high molecular compounds
A carbamoylalkyl derivative of a high molecular compound is produced with a good yield and low cost by conducting the hydrolysis of a cyanoalkyl derivative of the high molecular compound with...
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3833392 |
COATING COMPOSITION AND METHOD FOR PREPARING WATER-SOLUBLE CELLULOSIC POLYMER COATING COMPOSITIONS FOR COATING FLUORESCENT TUBES
Method of preparing suspension for coating discharge devices with finely divided particulate material, wherein an aqueous solution of a hydroxy alkyl cellulose is initially purified by passing the...
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3719663 |
PREPARATION OF CELLULOSE ETHERS
An improved process is provided for preparing cellulose ethers of the viscosity desired. Their viscosity is regulated during or after the etherification reaction used in their preparation. The...
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3506644 |
MODIFIED CARBOXYALKYLCELLULOSE ETHERS
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3498971 |
PROCESS FOR THE PREPARATION OF SODIUM CARBOXYMETHYLCELLULOSE
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3497496 |
PROCESS FOR REDUCING THE VISCOSITY OF CELLULOSE ETHERS
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3454623 |
PROCESS FOR MODIFYING POLYMERS AND BORON HYDRIDE/POLYMERIC COMPOSITIONS PRODUCED THEREFROM
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3424744 |
CELLULOSE ALKOXYL ETHER PRODUCT AND THE AQUEOUS DISPERSIONS THEREOF
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3391135 |
Process for the manufacture of low molecular weight cellulose derivatives
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3382234 |
Perfluoro aldehyde treatment of cellulosic materials
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3379721 |
Process of treating water-soluble alkali metal salts of cmc and product
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3296248 |
Process of oxidative aging of hydroxyethylcellulose
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3208994 |
Process for preparing hydrophilic copolymerization and product obtained thereby
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3131177 |
Manufacture of water-soluble hydroxyalkyl cellulose ethers
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3109695 |
Treatment of cellulosic fabrics and the fabrics thereby obtained
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3106551 |
Processes of treating water-soluble cellulose derivatives containing hydroxyethyl groups and product
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3080281 |
Hydroxy-containing hemi-acetals, their preparation and use
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2988455 |
Polysaccharide composition and method of manufacture
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2987434 |
Method of making pulp
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2912431 |
Preparation of carboxyalkyl cellulose derivatives
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2781276 |
Method of treating benzyl cellulose
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3728331 |
Title is not available
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3702754 |
Title is not available
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3652539 |
Title is not available
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