Patents for C08B 11 - Preparation of cellulose ethers (2,701) |
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05/12/1987 | US4664806 Ethers having carboxy, thio, and amide groups |
05/05/1987 | US4663159 Hydrophobe substituted, water-soluble cationic polysaccharides |
04/28/1987 | US4661589 Process for preparing hydroxyalkylcellulose ethers |
04/22/1987 | EP0219426A2 A method for the preparation of an acidic dicarboxylic acid ester of cellulose ether |
03/17/1987 | US4650863 Preparation of water-soluble mixed cellulose ethers |
03/17/1987 | US4650716 Novel salts of carboxymethylcellulose |
03/11/1987 | EP0213944A2 Novel cellulose derivative, process for preparing the same and sulfur dioxide gas permselective membrane comprising the same |
03/04/1987 | EP0212625A2 Process for preparing low-viscosity cellulose ethers |
03/04/1987 | EP0212145A1 Quaternary ammonium salts of natural polysaccharides possessing hypocholesterolemic activity |
02/04/1987 | EP0210917A2 A method for the preparation of a cellulose ether having a decreased degree of polymerization |
02/03/1987 | CA1217482A1 Alkylsulfonated polysaccharides and mortar and concrete mixes containing them |
01/20/1987 | CA1216815A1 Stabilization of irradiated carboxymethyl cellulose |
01/15/1987 | DE3524596A1 Dialysis membrane composed of modified cellulose with improved biocompatibility |
01/06/1987 | US4634439 pH-regulating Cellulose fiber |
12/16/1986 | CA1215358A1 Preparing cellulose ethers in a dimethoxyethane/(dispersing auxiliary) medium |
11/25/1986 | US4624743 Reacting pulps with epichlorohydrin-dimethylamine polymer |
11/20/1986 | EP0201895A2 Process for manufacture of salts of carboxymethylcellulose |
11/19/1986 | CN86101979A Hydroxypropyl methyl cellulose ethers useful as suspending agents for suspension polymerization of vinyl chloride |
11/05/1986 | EP0200363A1 Organo-soluble C3-C4 hydroxyalkyl ethyl cellulose ethers |
11/05/1986 | EP0200156A2 Use of an aqueous solution of a chlorite matrix for the manufacture of a medicament for treating tumours |
10/22/1986 | EP0198582A1 Hydroxypropyl methyl cellulose ethers useful as suspending agents for suspension polymerization of vinyl chloride |
10/14/1986 | US4617385 Thickeners, antistatic agents |
10/14/1986 | CA1212668A1 Multiple stage process for preparing mixed hydroxyalkylcellulose ethers |
09/30/1986 | US4614545 To control consistency, rheology, adhesion |
09/17/1986 | EP0194877A1 Purification of cellulose ethers |
09/16/1986 | US4612345 Hydroxypropyl methyl cellulose ethers useful as suspending agents for suspension polymerization of vinyl chloride |
09/09/1986 | CA1211042A1 Fracturing of subterranean formations |
09/02/1986 | US4609729 Organosoluble C3 -C4 hydroxyalkyl ethyl cellulose ethers |
08/14/1986 | WO1986004621A1 Cationic cellulose product and method for its preparation |
08/12/1986 | US4605640 Oil-absorbent cellulosic derivatives |
08/06/1986 | EP0189935A2 Hydrophobe substituted, water-soluble cationic polysaccharides |
07/30/1986 | EP0189373A2 Anionic modified polysaccharides, process for their preparation and their use |
07/02/1986 | CA1206962A Preparing water-soluble mixed cellulose ethers |
06/24/1986 | CA1206473A1 Carboxymethyl hydroxyethyl cellulose composition |
06/10/1986 | CA1205802A1 Continuous addition process for preparing hydroxyalkylalkylcellulose ethers |
06/03/1986 | CA1205466A1 Process for etherifying cellulose with alkyl monochloroacetates |
04/29/1986 | CA1203799A1 Water-soluble, ternary cellulose ethers |
04/22/1986 | US4584370 Reacting sodium cellulose glyocolate with calcium substituting agent in heterogeneous reaction system |
04/15/1986 | US4582899 Etherifying cellusose acetate |
04/09/1986 | EP0176940A2 Polysaccharides, methods for preparing such polysaccharides and fluids utilizing such polysaccharides |
04/08/1986 | US4581446 Purification of cellulose ethers |
04/01/1986 | US4579943 Treating with alkali and chloroacetic acid; from crystal form of cellulose; cmc |
04/01/1986 | US4579942 Water-soluble cellulose ethers having goog shear-thermal stabilitycharacteristics |
03/26/1986 | EP0175113A2 Polysaccharide derivatives containing aldehyde groups, their preparation from the corresponding acetals and use as paper additives |
03/18/1986 | US4577013 Microcrystalline wood cellulose, n-methylolamide compound, reversible absorber, chromatography |
03/04/1986 | US4574151 Alkaloids and polysaccharides |
03/04/1986 | US4573578 Method and material for the restraint of polar organic liquids |
02/26/1986 | EP0172437A2 Modified cellulose dialysis membrane with improved biocompatibility |
02/05/1986 | EP0170053A2 Quaternary ammonium salts of carboxymethylcellulose |
01/08/1986 | EP0167488A2 Ionically modified polysaccharides, process for their preparation and their use |
01/07/1986 | US4563421 Method for determining the presence of endohydrolase in a liquid and composition therefor |
01/02/1986 | EP0166457A2 Process for preparing cellulose ethers |
11/21/1985 | EP0161607A2 Process for preparing water-soluble mixed ethers of cellulose |
11/12/1985 | CA1196627A1 Process for preparing cellulose derivatives |
10/29/1985 | US4550161 Preparing water-soluble mixed cellulose ethers |
10/15/1985 | US4547571 Process for preparing carboxymethyl ethyl cellulose suitable for enteric coating |
10/15/1985 | US4547570 Process for preparing cellulose ethers |
10/15/1985 | CA1195321A1 Method for controlling cellulose etherification reaction |
10/08/1985 | CA1194863A1 Process for the preparation of cellulose ethers from ammonia-activated cellulose |
09/10/1985 | CA1193250A1 Dispersing auxiliary for preparing cellulose ethers |
09/04/1985 | EP0153501A2 Novel synthetic homo- and heteropolysaccharides and a method for the preparation thereof |
08/27/1985 | US4537958 Mixing with a dialdehyde under acid conditions |
07/24/1985 | EP0149249A2 Polysaccharides and personal care products utilizing such polysaccharides |
07/09/1985 | CA1190222A1 Cellulose ethers having improved dispersing properties |
07/03/1985 | EP0147369A2 Cellulosic material ionically modified, its preparation and use |
07/02/1985 | US4526961 Process for etherifying cellulose with alkyl monochloroacetates |
06/26/1985 | EP0146400A2 Device, valve, and method for the restraint of polar organic liquids |
06/25/1985 | US4525585 Etherification of an alkali cellulose with an ester of monochloroacetic acid and isopropanol; viscosity;nonhydrolyzing;chemical resistance |
06/11/1985 | US4523010 Dihydroxypropyl mixed ether derivatives of cellulose |
06/11/1985 | CA1188685A1 Highly dielectric polysaccharides |
06/11/1985 | CA1188614A1 Sustained release therapeutic compositions based on high molecular weight hydroxypropylmethylcellulose |
06/04/1985 | US4521594 Process for producing sodium carboxymethylcellulose |
04/24/1985 | EP0138179A2 PH-regulating materials and their preparation |
04/24/1985 | EP0028641B1 Hydroxyalkyl starch drug carrier |
04/10/1985 | EP0136722A2 Process for preparing carboxymethyl ethyl cellulose suitable for enteric coating |
04/10/1985 | EP0136549A1 Process for the preparation of alkylchlorides from alcohol-ether mixtures obtained by the etherification of cellulose |
04/10/1985 | EP0136518A2 Process for the purification of aqueous distillation residues obtained during the treatment of liquids in the preparation of cellulose ethers |
04/03/1985 | EP0135896A2 Multiple stage process for preparing mixed hydroxyalkylcellulose ethers |
04/02/1985 | US4508895 Alkalization with naoh then etherification with alkylene oxide |
04/02/1985 | US4508894 Water soluble |
04/02/1985 | US4508893 Process for the preparation of a powdery calcium cellulose glycolate |
03/26/1985 | US4507474 Process for highly substituted carboxyalkyl celluloses and mixed ethers thereof |
03/26/1985 | US4507473 Process for the continuous granulation of carboxymethyl cellulose |
03/20/1985 | EP0134465A1 Continuous addition process for preparing hydroxyalkylalkylcellulose ethers |
03/19/1985 | US4505775 Method for preparation of cationic cellulose |
03/12/1985 | US4504656 Esterified carboxymethyl celluloses |
02/26/1985 | US4501887 Preparing cellulose ethers in a dimethoxyethane/(dispersing auxiliary) medium |
02/26/1985 | US4501834 Gels formed from anionic and cationic polymers |
01/01/1985 | US4491661 Process for the preparation of cellulose ethers from ammonia-activated cellulose |
12/11/1984 | US4487926 For uses as fibers, films, moldings, membranes, and coatings |
12/05/1984 | EP0126959A1 Process for the preparation of water-soluble mixed cellulose ethers |
12/04/1984 | US4486335 Carboxymethyl hydroxyethyl cellulose composition |
11/13/1984 | CA1177827A1 Process for preparing alkali metal salt of carboxymethyl cellulose |
10/31/1984 | EP0123056A2 Process for the continuous granulation of carboxymethyl cellulose |
10/16/1984 | US4477657 Process for preparing hydroxyalkylcellulose ethers |
10/03/1984 | EP0120430A1 Water-soluble, ternary cellulose ethers |
10/02/1984 | US4474951 Hydroxyalkylation of polysaccharides |
10/02/1984 | US4474950 Silane modified |
09/11/1984 | CA1174234A1 Water-soluble cellulose mixed ethers which contain a phosphonomethyl substituent and a process for preparing same |
09/05/1984 | EP0117490A2 Process for preparing cellulose ethers with a dispersing agent containing dimethoxyethane |