Patents for C08B 11 - Preparation of cellulose ethers (2,701)
08/1990
08/29/1990EP0384167A1 Polysaccharides with alkaryl or aralkyl hydrophobes and latex compositions containing same
08/29/1990EP0384046A1 Grinding process for high viscosity cellulose ethers
08/28/1990US4952684 Stable aminated cellulose derivatives for thickeners, emulsifiers biochemical immobilization, sequestering of metals
08/16/1990EP0382578A2 Substitution of degraded cellulose derivatives for high calorie ingredients in foods
08/16/1990EP0382577A1 Enzymatic cellulose derivative hydrolysate
08/16/1990EP0382576A1 Cellulose derivative hydrolysate and fractions thereof
08/10/1990CA2009677A1 Substitution of degraded cellulose derivatives for high calorie ingredients in foods
08/10/1990CA2009676A1 Cellulose derivative hydrolysate and fractions thereof
08/08/1990CN1009094B Prodn. of sodium carboxy methylcellulose
07/1990
07/25/1990EP0167488B1 Ionically modified polysaccharides, process for their preparation and their use
07/23/1990CA2008240A1 Removal of undesirable material from water-soluble polymer solution
07/17/1990US4941943 Process for preparing sodium carboxy-methyl cellulose
07/11/1990EP0377518A2 Sustained release pharmaceutical composition
07/10/1990US4940785 Method of preparing cellulose ethers containing tertiary or quaternary nitrogen
07/03/1990US4939192 Building composition containing 3-alkoxy-2-hydroxypropylhydroxyethyl cellulose
06/1990
06/27/1990EP0374633A2 Method for the preparation of esters of carboxyalkyl polysaccharides
06/20/1990EP0374125A2 Soil-conditioning agent
05/1990
05/30/1990EP0370447A1 Method and apparatus for the product-reserving milling and simultaneous drying of moist cellulose ethers
05/29/1990US4929670 Glass sizing compositions
05/25/1990CA2003771A1 Process and equipment for careful grinding and simultaneous drying of moist cellulose ether products
05/08/1990US4923979 Cellulose carbamate products of lowered carbamate content
05/08/1990CA1268714A1 Use of an aqueous chlorite matrix solution for the treatment of tumors
04/1990
04/17/1990US4918180 Preparation of cellulose ethers
04/11/1990EP0362769A1 Mixed hydrophobe polymers
02/1990
02/27/1990US4904772 Mixed hydrophobe polymers
02/21/1990CN1039811A Hydroxypropyl methyl cellulose ethers useful as snspending agents for suspension polymerigation of vinyl chloride and as thickening agents for organic liquids
02/20/1990US4902733 Aqueous protective coating composition comprising 3-alkoxy-2-hydroxypropylhydroxyethylcellulose and film forming latex
02/07/1990EP0353789A1 Hydroxypropyl methyl cellulose ethers useful as thickening agents for organic liquids
01/1990
01/24/1990EP0351629A2 Process and device for separating and keeping various solvents separated
01/16/1990US4894448 Process for the preparation of low-viscosity cellulose ethers
12/1989
12/26/1989US4889562 Color strength
12/05/1989CA1263646A1 Synthetic homo- and heteropolysaccharides and a method for the preparation thereof
11/1989
11/23/1989EP0342557A1 New polysaccharide esters
11/16/1989WO1989010941A1 Cross-linked carboxy polysaccharides
11/16/1989WO1989010940A1 New polysaccharide esters
11/15/1989EP0341745A1 Crosslinked carboxy polysaccharides
10/1989
10/31/1989US4877617 Coating with solution of quaternary ammonium salt of alginic acid or cmc in removable solvent; households, medicine, industry
09/1989
09/08/1989WO1989008119A1 High molecular weight prodrug derivatives of anti-inflammatory drugs
09/06/1989EP0331471A1 High molecular weight prodrug derivatives of antiinflammatory drugs
08/1989
08/30/1989CN1005059B Hydroxypropyl methyl cellulose ethers as suspending agents for suspension polymerization of vinyl chloride
08/29/1989US4861874 Method of lowering the carbamate content of cellulose carbamate products using a base/alkali metal salt mixture
08/09/1989EP0326939A2 Process for isolating cellulose ethers from a suspension
07/1989
07/04/1989USRE32976 Resistance to enzymatic degradation
07/04/1989US4845207 3-alkoxy-2-hydroxypropylhydroxyethylcellulose and building composition containing the same
07/04/1989US4845206 Production of cellulose ethers using a premix of alkali and etherifying agent
06/1989
06/14/1989EP0319867A2 Method for the preparation of sulfoethyl cellulose with excellent solution characteristics
06/14/1989EP0319865A2 Carboxymethyl sulfoethyl cellulose and process for its preparation
06/13/1989US4839449 Sizing composition for glass
05/1989
05/24/1989EP0316492A1 Polymeric matrix for affinity chromatography and immobilization of ligands
05/17/1989EP0212625B1 Process for preparing low-viscosity cellulose ethers
05/10/1989CN1032796A Carboxymethyl hydrophobically modified hydroxyethylcellulose (cmhmhec) and its use in protective coating compositions
05/03/1989EP0314063A2 Polysaccharides containing aromatic aldehydes and their derivatization via amine-aldehyde interactions
05/02/1989US4826970 Carboxymethyl hydrophobically modified hydroxyethylcellulose
04/1989
04/12/1989EP0310787A2 Process for preparating cellulose ethers containing tertiary or quaternary nitrogen
04/11/1989US4820813 Impacing particles with high speed air swept impact mill
03/1989
03/22/1989EP0307915A2 Carboxymethyl hydrophobically modified hydroxyethylcellulose (cmhmhec) and use of cmhmhec in protective coating compositions
03/08/1989EP0305899A2 Process for the purification of cellulose ethers
03/08/1989EP0305898A2 Process for the isolation and purification of cellulose ethers and other derivatives of cellulose
03/01/1989EP0304454A1 Improved cellulose ether and its manufacture
02/1989
02/14/1989US4804769 Paper additives
01/1989
01/31/1989CA1249585A1 Cationic cellulose product and method for its preparation
01/31/1989CA1249584A1 Method for preparation of cationic cellulose
01/25/1989CN1030590A 3-alkoxy-2-hydroxypropyl derivatives of cellulose and use thereof in building compositions
01/18/1989CN1030427A Procedure for lowering carbamate content of products made of cellulose carbamate, and products made by procedure
12/1988
12/21/1988EP0296107A2 Organic pigments coated with reticulated ethyl cellulose
12/21/1988EP0295628A2 3-Alkoxy-2-hydroxypropyl derivatives of cellulose and use thereof in building compositions
12/13/1988CA1246555A1 Polysaccharides, methods for preparing such polysaccharides and fluids utilizing such polysaccharides
11/1988
11/29/1988US4788280 Polysaccharide derivatives containing aldehyde groups on an aromatic ring, their preparation from the corresponding acetals and use in paper
11/23/1988EP0292242A2 Process for the production of cellulose ethers
11/02/1988CN88101790A New method for producing sodium carboxymethylcellulose
09/1988
09/28/1988EP0283951A1 Polysaccharide derivatives containing aldehyde groups, their preparation from the corresponding acetals and use in paper
09/22/1988WO1988007059A1 Improved cellulose ether and its manufacture
08/1988
08/03/1988EP0276797A2 Process for preparing sodium carboxy-methyl cellulose
07/1988
07/26/1988US4760135 Phloretin and phlorizin derivative containing compounds
07/05/1988USH493 Alkylsulfonated polysaccharides and mortar and concrete mixes containing them
06/1988
06/28/1988US4753983 Polymeric matrix for affinity chromatography and immobilization of ligands
06/21/1988CA1238317A1 Preparation of water-soluble mixed cellulose ethers
05/1988
05/10/1988CA1236453A1 Organo-soluble c.sub.3-c.sub.4 hydroxyalkyl ethyl cellulose ethers
05/10/1988CA1236452A1 Process for preparing cellulose ethers
05/03/1988US4741804 Polysaccharide derivatives containing aldehyde groups, their preparation from the corresponding acetals and use as paper additives
04/1988
04/27/1988EP0265088A1 Improvement in the preparation of cellulose ethers
04/07/1988WO1988002375A1 Improvement in the preparation of cellulose ethers
03/1988
03/15/1988US4731162 Polysaccharide derivatives containing aldehyde groups for use as paper additives
03/02/1988EP0257536A2 Process for the treatment of water soluble cellulose derivatives having high cloud points
12/1987
12/29/1987CA1230861A1 Method and material for the restraint of polar organic liquids
10/1987
10/28/1987EP0243151A2 Modified microbially-produced cellulose gel and complex thereof with animal cell
10/27/1987US4703116 Wet strength, dry strength
10/20/1987CA1228351A1 Ionically modified cellulose material, its preparation and its use
09/1987
09/29/1987US4697008 Production of water-insoluble alkali metal salts of carboxyalkyl cellulose
09/15/1987US4694077 Novel cellulose derivative, process for preparing the same and sulfur dioxide gas permselective membrane comprising the same
09/15/1987CA1226997A1 Amine salts and products containing them
09/08/1987US4692254 Crosslinked gel, polysaccharide and zirconium compound
09/01/1987US4691013 Process for production of modified hydroxyethyl cellulose
09/01/1987CA1226383A1 Gels formed from anionic and cationic polymers
08/1987
08/25/1987US4689408 Etherifying cotton or wood pulp with chloracetic acid; disposable diapers, surgical dressings
08/19/1987EP0232851A2 Polysaccaride derivatives containing aldehyde groups, corresponding acetals and use as paper additives
07/1987
07/28/1987US4683068 Fracturing of subterranean formations
06/1987
06/23/1987US4675394 Polysaccharide derivatives containing aldehyde groups, their preparation from the corresponding acetals and use as paper additives
06/09/1987US4672113 Process for purifying aqueous distillation residues during the treatment of liquids in the preparation of cellulose ethers
05/1987
05/26/1987US4668396 Dialysis membrane of modified cellulose with improved biocompatibility
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