| Patents for C08B 11 - Preparation of cellulose ethers (2,701) |
|---|
| 10/28/1992 | CA2067015A1 Water-soluble sulfoethyl cellulose ethers of very high solution quality and a process for their production |
| 09/08/1992 | CA1307258C Carboxymethyl hydrophobically modified hydroxyethylcellulose (cmhmhec) and use of cmhmhec in protective coating compositions |
| 08/18/1992 | US5140099 Water soluble nonionic cellulose ethers and their use in paints |
| 08/12/1992 | EP0497985A1 Coating base for pharmaceutical film and production thereof |
| 08/04/1992 | CA1305961C Polysaccharide derivatives containing aldehyde groups, their preparation from the corresponding acetals and use in paper |
| 07/21/1992 | CA1305471C Procedure for lowering the carbamate content of products made of cellulose carbamate, and products made by the procedure |
| 06/30/1992 | CA1304356C 3-alkoxy-2-hydroxypropyl derivatives of cellulose and use thereof in building compositions |
| 06/30/1992 | CA1304355C Process for the production of cellulose ethers that contain tertiary orquaternary nitrogen |
| 06/23/1992 | US5124446 Betaine group-containing polysaccharides with recurring anhydroglucose units, their synthesis and their use in cosmetic preparations |
| 06/23/1992 | US5124445 Heating hydroxyethyl cellulose with an alkylaryl glycidyl ether under alkaline conditions in the presence of tert-butyl alcohol; cooling; neutralizing; slurrying with acetone; recovering |
| 06/16/1992 | US5122598 Total and partial esterification of cellulose, starch and chitin groups with alcohols; inorganic and organic based salts of partial esters; therapeutic substances; creams, sprays, solutions |
| 06/09/1992 | US5120838 Thickeners, leveling, sag resistance |
| 06/03/1992 | EP0487988A2 Low substituted water-soluble hydroxypropyl-sulfoethylcellulose derivatives (HPSEC) and process to produce the same |
| 06/03/1992 | EP0462178A4 Particulate absorbent material |
| 05/27/1992 | CN1016786B One-step technology for synthesizing cross-linked carboxymethyl hydroxypropyl cellulose complex ether |
| 05/13/1992 | EP0485172A2 Esters and amides of substituted indenyl acetic acids |
| 05/13/1992 | EP0485158A2 Esters and amides of substituted phenyl acetic acids |
| 05/13/1992 | EP0485157A2 Esters and amides of substituted pyrrole acetic acids |
| 05/12/1992 | CA1300611C Method for the preparation of an acidic dicarboxylic acid ester of cellulose ether |
| 05/12/1992 | CA1300610C Production of cellulose ethers |
| 03/25/1992 | EP0476507A2 Modified cellulose ethers and their use in dispersion paints |
| 03/12/1992 | CA2051035A1 Modified cellulose ethers and the use thereof in dispersion paints |
| 02/26/1992 | EP0472075A2 Process for the preparation of polysaccharides |
| 02/26/1992 | EP0471866A1 Modified water-soluble cellulose ether |
| 02/25/1992 | WO1992003167A1 Coating base for pharmaceutical film and production thereof |
| 02/12/1992 | EP0470444A2 Dihydroxypropyl sulfoethyl cellulose ethers, preparation and use thereof |
| 02/05/1992 | CN1058342A Soluble hemostyptic fabric |
| 02/04/1992 | US5086077 Endermic medicament with a gel base |
| 01/29/1992 | EP0468114A2 Soluble haemostatic fabric |
| 01/22/1992 | CN1058023A One-step process for synthesizing crosslinked carboxyalkyl hydroxylalkyl cellulose complex ether |
| 01/15/1992 | EP0465992A1 High solids low viscosity polysaccharide composition |
| 01/08/1992 | EP0464609A2 Photographic element |
| 12/27/1991 | EP0462178A1 Particulate absorbent material. |
| 12/18/1991 | EP0461886A1 Method for preventing coagulation of powder |
| 12/10/1991 | US5071978 Silated polysaccharide process |
| 12/04/1991 | EP0459293A2 Polysaccharide ether dialysis membrane |
| 11/21/1991 | EP0457092A2 Alkenylmethylhydroxypropyl cellulose ethers and process for their preparation |
| 11/13/1991 | EP0456611A2 Hydroxyethyl cellulose derivatives containing pendant (meth)acryloyl units bound through urethane groups and hydrogel contact lenses made therefrom |
| 11/13/1991 | EP0456101A2 Methylhydroxypropyl cellulose ethers and process for their preparation |
| 11/11/1991 | CA2042123A1 Hydroxyethyl cellulose derivatives containing pendant (meth) acryloyl units bound through urethane groups and hydrogel contact lenses made therefrom |
| 11/05/1991 | WO1991016906A1 A therapeutical composition |
| 11/05/1991 | CA2082060A1 Therapeutical composition |
| 10/31/1991 | DE4112849A1 Purification of cellulose ether(s) from suspension - by sepn. and purification on sequential pressure filter |
| 10/22/1991 | US5059686 Covalent bonding; hydrolytically stable; films; water resistant |
| 10/09/1991 | EP0450092A1 Organic magnetic composite |
| 09/20/1991 | WO1991014709A1 Process for preparing cellulose esters |
| 08/14/1991 | CN1013497B 3-alkoxy-2-hydroxypropyl derives of celluiose and use thereof in building compositions |
| 07/16/1991 | US5032682 Silated polysaccharides |
| 07/02/1991 | CA1285556C Preparation of cellulose ethers |
| 06/12/1991 | EP0431387A1 Basic polysaccharides |
| 06/11/1991 | US5023246 Betaine group-containing derivatives of carboxymethylcellulose, their synthesis and their use in cosmetic preparations |
| 06/03/1991 | CA2031329A1 Basic polysaccharides |
| 05/15/1991 | EP0427157A2 Endermic medicament with a gel base |
| 05/08/1991 | EP0426086A1 Alkylaryl hydrophobically modified cellulose ethers |
| 05/08/1991 | DE4034709A1 Cellulose ether prods. with high degree of polymerisation - prepd. by etherifying raw cotton linters with alkyl halide and opt. alkylene oxide, useful thickening agents |
| 05/08/1991 | DE3929108A1 Wet strength paper is prepd. |
| 05/07/1991 | US5013832 Separation of washing liquids at elevated temperature and pressure |
| 05/02/1991 | WO1991005807A1 Organic magnetic composite |
| 05/01/1991 | CA2028387A1 Alkylaryl hydrophobically modified cellulose ethers |
| 04/30/1991 | US5011918 Polysaccharides containing aromatic aldehydes and their derivatization via amine-aldehyde interactions |
| 04/24/1991 | CN1012437B Carbocxmethyl hydrophobically modified hydroxyethylcellulose (cmhmhec) and its use in protective coating compositions |
| 04/23/1991 | US5010184 Ionically modified agarose |
| 04/02/1991 | US5004808 Aminoalkyl-derivatives of hydroxyalkyl-celluloses |
| 04/02/1991 | US5004791 Glass fiber sizing composition |
| 03/26/1991 | CA1282062C Quaternary ammonium salts of natural polysaccharides possessing hypocholesterolemic activity |
| 03/19/1991 | US5001232 Carboxymethylsulphoethyl celluloses and a process for their preparation |
| 02/19/1991 | CA1280413C Hydroxypropyl methyl cellulose ethers useful as suspending agents for suspension polymerization of vinyl chloride and as thickening agents for organic liquids |
| 02/19/1991 | CA1280412C Cellulose derivative, process for preparing the same and sulfur dioxide gas permselective membrane comprising the same |
| 02/12/1991 | US4992538 Modified cellulose ether with a nonhydrolyzable silyl group bonded covalently |
| 02/05/1991 | US4990609 Sulfoethyl cellulose of high solution quality and a process for its production |
| 01/30/1991 | CN1048860A Polymer base blend compositions containing destructurized starch |
| 01/29/1991 | US4988807 Removal of undesirable material from water-soluble polysaccharide ethers |
| 01/29/1991 | US4988806 Shampoo for hair |
| 01/23/1991 | EP0409781A2 Polymer base blend compositions containing destructurized starch |
| 01/22/1991 | CA1279313C Salts of carboxymethylcellulose |
| 01/15/1991 | US4985410 Quaternary ammonium salts of polysaccharides, prossessing hypocholesterolemic activity |
| 01/15/1991 | US4985152 Process for separating solvents used in the purification of products |
| 01/09/1991 | EP0406837A2 Cationic polysaccharides and reagents for their preparation |
| 01/08/1991 | US4983748 Acetals useful for the preparation of polysaccharide derivatives |
| 12/25/1990 | US4980150 With an anionic polymer; antibacterial; osarl hygeine; dentifrices; nonstaining |
| 12/25/1990 | US4979681 Process for grinding and simultaneous drying of moist cellulose ether products |
| 12/12/1990 | EP0401668A2 Silated polysaccharides |
| 12/11/1990 | CA1277658C Anionically modified polysaccharides, process for their preparation and the use thereof |
| 12/04/1990 | CA1277314C Hydrophobe substituted, water-soluble cationic polysaccharides |
| 11/27/1990 | US4973680 Organosiloxane-containing polysaccharides |
| 11/07/1990 | CN1046740A One-step technology for synthesizing cross-linked carboxymethyl hydroxypropyl cellulose complex ether |
| 11/06/1990 | US4968789 Using reverse filter centrifuge |
| 10/30/1990 | CA1275650C Purification of cellulose ethers |
| 10/24/1990 | EP0393572A2 Controlled release tablets containing flavoxate |
| 10/16/1990 | US4963664 Processes for the preparation of amides and amines from a material having carboxyl-containing polysaccharides and products therefrom |
| 10/16/1990 | US4963271 Pressurization of a mixture of cellulose, cellulose ethers, or cellulose derivatives through a candle filter |
| 10/03/1990 | EP0390240A1 Water soluble, nonionic cellulose ethers and their use in paints |
| 09/25/1990 | US4959461 Processes for the preparation of amides and amines from a material having carboxyl-containing polysaccharides and products therefrom |
| 09/25/1990 | US4959341 Biodegradable superabsorbing sponge |
| 09/20/1990 | WO1990010426A1 Biodegradable superabsorbing sponge |
| 09/10/1990 | WO1990010495A1 Particulate absorbent material |
| 09/10/1990 | CA2049054A1 Particulate absorbent material |
| 09/05/1990 | EP0385396A1 Organosiloxane-containing polysaccharides |
| 09/04/1990 | US4954268 Process for removing cellulose ethers from a cellulose ether suspension |
| 08/29/1990 | EP0384573A1 Removal of color material from water-soluble polymer solutions |