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Matches 201 - 250 out of 1,852

Document Document Title
WO/2003/048211A1
A water-soluble methyl cellulose ether, having a flocculation point below 100° C, is manufactured by reacting methyl chloride and a cellulose activated by mercerising the cellulose with aqueous alkali in the presence of a C¿2?-C¿3? al...  
WO/2003/042355A2
A product of acetoacetylated saccharide and the process of making such a product. The process is enzymatic where an enzyme is used as a catalyst for the reaction. The enzymatic process provides better yields and milder process conditions...  
WO2002083073A3
A composition for treating a keratin based substrate that includes a cosmetically acceptable medium containing a water-soluble interjacent complex. The water-soluble interjacent complex includes a first water-soluble polymer and a second...  
WO/2003/018637A1
The invention relates to a method for the depolymerisation of cellulose ethers by means of acid oxidative decomposition. The ground and dried cellulose ether is first gassed with gaseous acid or is sprayed with the solution of an acid, a...  
WO/2003/011960A1
The invention relates to a hydrocolloid composition containing a) one or more sulfoalkyl-substituted polysaccharide ethers which are soluble in cold and hot water and optionally b) one or several non-ionic polysaccharide ethers with a th...  
WO/2003/010206A1
The invention relates to polysaccharide graft polymers useful for incorporation as benefit agents in laundry detergent and fabric treatment compositions, and their preparation. The invention also relates to substituted polysaccharides us...  
WO/2002/094882A1
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 until an alkyl cellulose ether with a D.S.(...  
WO/2002/087643A1
The invention is related to water soluble cellulose etherified derivates styptic materials, for example, pharmaceutically acceptable salts of methyl cellulose, ethyl cellulose, hydroxy ethyl cellulose and carboxy methyl cellulose. Specia...  
WO/2002/085949A1
The present invention relates to a purification method of hydroxypropylmethyl cellulose phthalate, more particularly to a method of preparing high-purity hydroxypropylmethyl cellulose phthalate through a simple crushing process which com...  
WO/2002/083073A2
A composition for treating a keratin based substrate that includes a cosmetically acceptable medium containing a water-soluble interjacent complex. The water-soluble interjacent complex includes a first water-soluble polymer and a second...  
WO/2002/083743A1
A water-soluble interjacent complex that includes a first water-soluble polymer and one or more water-soluble monomers polymerized to form a second water-soluble polymer in the presence of the first water-soluble polymer. The water-solub...  
WO/2002/084070A1
The present invention provides methods of treating subterranean zones penetrated by well bores in primary well cementing operations, well completion operations, production stimulation treatments and the like. The methods are basically co...  
WO/2002/083813A1
The present invention provides compositions of treating subterranean zones penetrated by well bores in primary well cementing operations, well completion operations, production stimulation treatments and the like. The invention includes ...  
WO/2002/081524A1
The invention relates to a method for producing low-viscous, aqueous cellulose ether solutions. The aim of the invention is to decrease the molecular weight of cellulose ether solutions, requiring reaction times which are as short as pos...  
WO/2002/079259A1
The present invention relates to the use of a quaternary ammonium hydroxyethyl cellulose ether that comprises an ether substituent containing an alkyl group with 2-4 carbon atoms, preferably 2 carbon atoms, having a DS¿alkyl? of 0.1-2.5...  
WO/2002/072862A2
Disclosed is a method for modifying naturally occuring biocompatible biopolymers of plant and animal origin by subjecting same to ionizing radiation in the presence of a mediating gas, typically acetylene to enable one to selectively enh...  
WO/2002/071155A1
New polymers and anti-reflective compositions including those polymers are provided. The polymer comprises recurring monomers according to the formula (I) wherein each R is OH, -CH¿2?OH, -O-R?1¿-O-X,or-CH¿2?-O-R?1¿-O-X, each R?1¿ is...  
WO/2002/068101A1
The invention relates to a process for recovering cellulose ethers from aqueous solutions, particularly from the washing media obtained in the purification of crude cellulose ethers. The process comprises the following steps: (a) passing...  
WO/2002/060971A1
A process for producing a photocrosslinked polysaccharide sponge involving the step (A) of freezing a solution of a photoreactive polysaccharide and the step (B) of crosslinking the photoreactive polysaccharide by irradiating the frozen ...  
WO2002026835A3
The invention relates to a method for modifying cellulose ethers. The inventive method is characterised in that a cellulose ether having a humidity content of between 5 and 90 % is intensively mixed with between 0.1 and 5 wt. % - in rela...  
WO/2002/042334A1
The invention relates to a method for purifying non-ionic alkyl cellulose ethers which is characterized by dissolving the non-ionic alkyl cellulose ether in a suitable solvent or solvent mixture, removing the residues and then isolating ...  
WO2002018448A3
The present invention relates to percarboxylated polysaccharide selected from the group consisting of gellan, carboxymethylcellulose, pectic acid, pectin and hyaluronic acid derivatives; the process for their preparation and their use in...  
WO2002006348A3
A method for reducing the molecular weight of polymer comprises subjecting a solid phase polymer to a dose of gamma irradiation sufficient to permit the desired molecular weight reduction to occur.  
WO/2002/036636A1
The present invention have discovered that the solution rheology of cellulose ethers prepared from cellulose pulp is altered by mercerizing and recovering cellulose pulp before preparing the cellulose ethers. For example, the solution vi...  
WO/2002/036272A1
A cellulose-based fire retardant composition is made by (1) adding cellulose to water, thereby forming a solution; (2) adding liquid ammonia to the solution; and (3) subsequently adding solid diammonium phosphate to the solution, thereby...  
WO/2002/036637A1
A method for improving holdout on a coated, cellulosic substrate, such as a man-made fiber board. The process comprises the steps of applying an aqueous carboxymethyl cellulose acetate butyrate size composition to a man-made fiber substr...  
WO2001087365A3
Disclosed are novel polysaccharide absorbents and method for providing a water-swellable, water-insoluble modified polysaccharide having preferred age-stable absorption properties. The novel polysaccharide absorbents and method provide a...  
WO/2002/026835A2
The invention relates to a method for modifying cellulose ethers. The inventive method is characterised in that a cellulose ether having a humidity content of between 5 and 90 % is intensively mixed with between 0.1 and 5 wt. % - in rela...  
WO2001085800A3
Product of esterified polysaccharides and the process of making such product. The process can be enzymatic where an enzyme is used as a catalyst for the reaction. The process can also be chemical where no enzyme is used. Novel products a...  
WO/2002/018448A2
The present invention relates to percarboxylated polysaccharide selected from the group consisting of gellan, carboxymethylcellulose, pectic acid, pectin and hyaluronic acid derivatives; the process for their preparation and their use in...  
WO/2002/006373A1
The present invention provides improved hydrogel films useful for therapeutic treatments. The invention also provides materials and methods for modification and polymerization of polysaccharides into hydrogel films, which swell after exp...  
WO/2002/006348A2
A method for reducing the molecular weight of polymer comprises subjecting a solid phase polymer to a dose of gamma irradiation sufficient to permit the desired molecular weight reduction to occur.  
WO2001068713A3
A superabsorbent polysaccharide can be obtained by crosslinking a polysaccharide or derivative thereof with at least 1 % by weight of a flexible spacer having a chain length of at least 9 chain atoms and having terminal activated couplin...  
WO/2001/087984A1
The invention relates to modified cellulose ethers, obtainable by reaction of cellulose ethers carrying free hydroxy groups with organic, di- and/or polyfunctional carboxylic acids that have been activated by reacting them with nitrogeno...  
WO/2001/087365A2
Disclosed are novel polysaccharide absorbents and method for providing a water-swellable, water-insoluble modified polysaccharide having preferred age-stable absorption properties. The novel polysaccharide absorbents and method provide a...  
WO/2001/085800A2
Product of esterified polysaccharides and the process of making such product. The process can be enzymatic where an enzyme is used as a catalyst for the reaction. The process can also be chemical where no enzyme is used. Novel products a...  
WO2000047701A9
In one aspect, the invention provides methods for separating a corn fiber lipid fraction from corn fiber and novel corn fiber oils prepared therefrom. In another aspect, the invention provides methods of obtaining derivatizable cellulose...  
WO/2001/077183A1
The invention relates to a method for the production of at least alkylated, non-ionic cellulose ethers, whereby at least 10 % of all hydroxy groups contained therein are alkylated and which may flocculate in water, within a temperature r...  
WO/2001/068713A2
A superabsorbent polysaccharide can be obtained by crosslinking a polysaccharide or derivative thereof with at least 1 % by weight of a flexible spacer having a chain length of at least 9 chain atoms and having terminal activated couplin...  
WO/2001/066600A1
A derivatized microfibrillar cellulose, derivatized to contain a substituent that provides cationic charge. A method for producing a derivatized microfibrillar cellulose to include a substituent that provides cationic charge, which may i...  
WO/2001/060868A1
Single phase gels for preventing the formation of surgical adhesions are disclosed. The gels are prepared by reacting an aqueous solution of a polyanionic polysaccharide, such as hyaluronic acid or carboxymethyl cellulose, with divinyl s...  
WO/2001/055220A1
A condensation product of chitosan is formed by its reaction with a bisulfite addition compound HOCRR'SO¿3?A wherein: each of R and R' independently represents a hydrogen atom, or R represents a hydrogen atom and R' represents an option...  
WO/2001/051003A2
The invention provides novel methods for treating disease based on the medicinal use of lipids and phospholipids covalently bound to physiologically acceptable monomers or polymers. Phosphatidylethanolamine moieties conjugated to physiol...  
WO/2001/051063A1
Inhibitors against the absorption of sodium ion containing as the active ingredient metal salts (excluding sodium salt) of cellulose derivatives of the general formula (I): R-O-A, which effectively inhibit excess common salt existing in ...  
WO/2001/048021A1
Highly charged cationically modified cellulose ethers having cationic substitution levels of at least about 3.0 wt.% are disclosed. The cationically modified cellulose ethers are useful, for example, in personal care formulations, e.g., ...  
WO/2001/046265A1
A water insoluble, biocompatible gel is prepared by reacting carboxymethylcellulose and a carbodiimide, wherein the reaction is conducted in an aqueous medium containing a water miscible organic solvent, such as a lower alkanol, an alkyl...  
WO/2001/018062A1
The invention relates to low-viscous cellulose ethers that flocculate in hot water and that have a high degree of purity and whiteness. The invention also relates to a method of producing the same by acidic-catalyzed hydrolytic depolymer...  
WO2000045804A3
A method for the prevention or reduction in the severity of abscess formation in a human subject involves the use of a dilute solution of a polyanionic polysaccharide, preferably a solution of hyaluronic acid or carboxymethyl cellulose, ...  
WO2000047701A3
In one aspect, the invention provides methods for separating a corn fiber lipid fraction from corn fiber and novel corn fiber oils prepared therefrom. In another aspect, the invention provides methods of obtaining derivatizable cellulose...  
WO/2001/009254A1
The invention relates to the use of sulfoalkyl-modified cellulose ethers, which are optionally substituted by hydroxyalkyl groups, as non-associatively active thickeners for aqueous coating systems such as dispersion paints, silicone res...  

Matches 201 - 250 out of 1,852