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7591891 Fibrous blend and methods of preparation  
A method for making crosslinked fibers containing cellulose fibers in which an aqueous solution comprising a carboxyalkyl cellulose and a galactomannan polymer or a glucomannan polymer in water is...
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...
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...
7101426 Inorganic matrix composite reinforced by ionically crosslinked polymer  
An in situ ionic interaction between two additives, one a cationic strength enhancing additive and one an anionic crosslinking additive, is used to improve the mechanical properties of an article...
7095604 Electrode for electric double-layer capacitor, and slurry for forming the same  
In an electric double-layer capacitor, a solution of a quaternary ammonium borofluoride compound in propylene carbonate is used as an electrolyte. The electrode includes alkali-activated carbon...
7026471 Purification method of hydroxypropylmethyl cellulose phthalate  
The present invention relates to a purification method of hydroxypropylmethyl cellulose phthalate, more particularly to a method of preparing high-purity hydroxypropylmethyl cellulose phthalate...
6958314 Alkylated alkyl polyglucoside non-ionic surfactants  
A petro-chemical free nonionic surfactant is prepared by the alkylation of an alkyl polyglucoside (APG). Under suitable alkylation reaction conditions, the surfactants are preferably prepared by...
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...
6872820 Finely divided polysaccharide derivatives  
Finely divided polysacharide derivatives are described. The finely divided polysacharide derivatives are prepared by a process comprising: a) forming an aqueous composition comprising a...
6806364 Ophthalmic compositions  
An aqueous ophthalmic solution containing 0.2 to 2.5 percent by weight a polymeric demulcent, 0.045 to 0.065 percent by weight a calcium salt, and 0.14 to 1.4 percent by weight a phosphate salt....
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...
6600033 Modified cellulose ethers  
The invention relates to a cellulose ether that is hydrophobically modified with an alkyl or alkenylketene dimer of general formula (I), in which R 1 and R 2 are alkyl or alkenyl chain, such...
6569906 Composition containing a precursor capable of being hydrolysed by glucocerebrosidase  
The invention concerns a composition capable of being hydrolyzed by a cutaneous enzyme, glucocerebrosidase. The active precursor is advantageously a gluco-conjugate derived from phenol whereof the...
6562961 Aminoalkyl trialkyl silyl cellulose and a method for coating surfaces  
The invention relates to polysaccharide derivatives comprising a) at least one hydrophobic and b) at least one nitrogen-containing substituent; in particular, the derivative is a cellulose ether...
6441057 Optical sensor membranes having improved barrier properties  
The present invention discloses novel polymer compositions comprising cellulose acrylamide, acrylamide and/or a fluorescent indicator species, and membranes made with these compositions. Optical pH...
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...
6369132 Fine particle size low bulk density thermoplastic polymers  
Fine particulate thermoplastic polymers [e.g., hydrophobically modified polyether-polyurethanes, polyacrylates, polyvinyl alcohol, polyether-polyols, polyacrylamide, aminoplast-polyethers and...
6265570 Cold water soluble starch aldehydes and the method of preparation thereof  
Stable, cold water soluble, ready for use starch aldehyde compositions and the method of preparation of such compositions wherein an aqueous dispersion of a converted starch acetal is hydrolyzed...
6184272 Fiber-reinforced molded plastic part and process for its manufacture  
A fiber-reinforced molded plastic part, a process for its manufacture and a use. The fiber-reinforced molded plastic part consists of a plastic matrix with natural fibers particularly arranged in a...
6121439 Waterborne coatings with cationically modified associative ethers  
A coating composition is composed of a water-soluble polysaccharide composition comprising at least one hydrophobic group selected from aryl, alkyl, alkenyl, aralkyl and mixtures thereof and at...
6103885 Method of making amide modified carboxyl-containing polysaccharide and fatty amide-modified polysaccharide so obtainable  
The Invention pertains to a process for the amidation of a material having at least one carboxyl-containing polysaccharide. The provided process involves a first step in which the carboxyl groups...
6075166 Photolytically cleavable encoding and linking agents for use in combinatorial chemistry  
The present invention is to novel photochemically cleavable aryl sulfonamides of the formula P--A 3 --A 2 --A 1 --S(O) 2 NR 1 R 2 wherein R 1 and R 2 are independently selected from...
5908845 Polyether nucleic acids  
A compound comprising a polyether backbone bearing a plurality of ligands that are individually bound to chiral carbon atoms located within said backbone, at least one of said ligands including a...
5792856 Process for preparing carboxyalkyl cellulose esters  
This invention provides certain carboxymethyl cellulose (CMC) esters of higher acids (e.g., CMC acetate propionate, CMC propionate, CMC acetate butyrate, and CMC butyrate). These new ether...
5739304 Process for the preparation of water-soluble aminoalkyl derivatives of polysaccharides  
Water-soluble polysaccharides which contain a) substituents selected from the group consisting of alkyl, hydroxyalkyl, carboxyalkyl and sulfoalkyl, b) N,N-disubstituted aminoalkyl groups, are...
5708162 Process for the preparation of low molecular weight polysaccharide ethers  
Process for the preparation of low molecular weight polysaccharide ethers which can be employed in binders for improving adhesive power and film-forming properties, by oxidative degradation of...
5614616 Process for the production of polysaccharides  
Polysaccharides corresponding to formula (I) ##STR1## in which S is a recurrent monosaccharide unit and B is a group of formula (Ia) attached to the monosaccharide unit S by an O atom ##STR2##...
5612321 Antioxidant grafted polysaccharides  
Grafted polysaccharide compositions comprising polysaccharides grafted with antioxidants on at least one hydroxyl group of the polysaccharide. The use of antioxidant grafted polysaccharides or...
5552485 Ethylenically unsaturated polymeric alkoxysilanes useful for treating fluoroaluminosilicate glass  
Fluoroaluminosilicate dental cement glasses are treated with an aqueous silanol treating solution and optionally with an additional organic compound. The treated glasses form cements with improved...
5426182 Polysaccharides containing complex hydrophobic groups  
Polysaccharides, including hydroxyethyl cellulose, having complex hydrophobic group substitution, provide latex compositions, such as paints, with improved rheology and stability. Improved...
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...
5349089 Reagent for preparing polycationic polysaccharides  
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...
5227481 Cationic polysaccharides and reagents for their preparation  
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...
5093489 Modified chitin for biocompatible dialysis membranes IV and process for preparation of modified cellulose and modified chitin for use therewith  
A modified cellulose and/or chitin for biocompatible dialysis membranes having a structure represented by the formula ##STR1## wherein Cell is cellulose or chitin, in each case without hydroxyl...
5091523 Mitomycin derivatives having reduced bone marrow toxicity, processes for their preparation, and the uses thereof  
The invention relates to certain derivatives of mitomycins A and C and the use thereof to treat bacterial infections and to supress the growth of cancer cells. The invention also relates to...
5023246 Betaine group-containing derivatives of carboxymethylcellulose, their synthesis and their use in cosmetic preparations  
Betain group-containing derivatives of carboxymethylcellulose are disclosed. They are characterized in that all or a portion of the carboxymethyl groups are or is replaced by groups of the general...
5021561 Complexes of iron or other metals with sulphonated derivatives of chitosan  
Complexes of iron or other metals with sulphonated derivatives of chitosan, having the following general formula (I): ##STR1## in which: R is H or a C 1 -C 5 alkyl group, or an arylalkyl group; ...
5011918 Polysaccharides containing aromatic aldehydes and their derivatization via amine-aldehyde interactions  
A polysaccharide derivative having the structure Sacch--O--Z--Ar--CHN--Y or ##STR1## where Sacch--O-- represents a polysaccharide molecule; Z is --(CH 2 ) n -- or ##STR2## Ar is a divalent...
5004808 Aminoalkyl-derivatives of hydroxyalkyl-celluloses  
A product comprising a water soluble, high molecular weight aminoalkyl-derivative of hydroxyalkyl-cellulose. The molecular weight of said cellulose is at least 50,000 daltons. One of the methods to...
4973641 Polysaccharide graft copolymers containing reactive aminoethyl halide group  
A polysaccharide graft copolymer containing a reactive aminoethyl halide group is provided, said copolymer represented by: Sacch--g--(M) a --(T) b where Sacch is a polysaccharide base substrate,...
4822681 Activated polymer solid bodies and processes for the production thereof  
A chemically modified and activated, hydroxyl-group-containing, natural or synthetic, polymeric solid body surface is disclosed, as well as a process for the activation of such solid body surfaces...
4788280 Polysaccharide derivatives containing aldehyde groups on an aromatic ring, their preparation from the corresponding acetals and use in paper  
Polysaccharide aldehydes having the formula ##STR1## or Sacch--O--CH 2 --Ar--CHO (II) such as starch, cellulose, and gum aldehydes, are useful as paper additives for imparting strength and as the...
4778880 Process for producing derivatives of hydroxy compounds, the products and their uses  
A process for producing novel water-soluble compounds of the formula (HO) m --A--(OCH 2 NR 1 COR) p comprises forming a dispersion of an aqueous solution of a substrate A(OH) n which is an...
4731162 Polysaccharide derivatives containing aldehyde groups for use as paper additives  
Polysaccharide aldehydes having the general structure ##STR1## such as starch, cellulose and gum aldehydes, are useful for imparting wet, dry, or temporary wet strength to paper. They are prepared...
4663159 Hydrophobe substituted, water-soluble cationic polysaccharides  
Water-soluble, cationic polysaccharides, including quaternary nitrogen-containing cellulose ethers, containing hydrophobic substitution, are substantially water-soluble; provide aqueous solutions...
4617385 Quaternary ammonium salts of carboxymethylcellulose  
A quaternary ammonium salt of carboxymethylcellulose having the formula ##STR1## wherein R is a hydrogen atom or a quaternary ammonio carboxymethyl group, and n is an integer from 10 to 1000,...
4577013 Ionically modified cellulose material, its preparation and its use  
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--CH 2 --O-- is suitable for being employed as...
4574151 Amine salts and products containing them  
A water soluble salt is formed between an alkaloid and a polymeric acid and contains at least 40% by weight of the alkaloid. The alkaloid is generally nicotine and the polymeric acid is generally a...
4557951 Cellulosic organic solvent soluble products  
The invention provides an improved cellulosic ester or ether product with a degree of ester or ether substitution of between 2.0 and about 2.9 which is derivatized or further reacted by reaction...
4549011 Modified sheet of material and method of making and using same in connection with biochemical procedures  
A sheet for separating and retaining biological molecules. The sheet is activated with a compound for covalently binding a ligand to said sheet, and then coated with ligands having an affinity for...
Matches 1 - 50 out of 203 1 2 3 4 5 >