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