Patents for C08B 3 - Preparation of cellulose esters of organic acids (1,677)
01/2000
01/04/2000US6011149 Esterification; carbamylation
12/1999
12/28/1999CA2009687C Organosiloxane-containing polysaccharides
12/09/1999WO1999049125A3 Modified textile and other materials and methods for their preparation
12/09/1999WO1999049124A3 Modified textile and other materials and methods for their preparation
11/1999
11/23/1999US5990304 Cellulose acetate excellent in physical strength, and process for production thereof
11/10/1999CN1046300C Dry water-dispersible complex and a process for the production thereof
11/09/1999US5981738 Cellulose acetate ester with maleate and/or fumarate having carboxylic acid pendant groups; will copolymerize in presence of vinyl crosslinking agents/photoinitiator when exposed to ultraviolet radiation; protective and/or decorative coatings
11/04/1999WO1999055774A1 Coprecipitation of cellulose esters with functional additives and compositions thus obtainable
11/02/1999US5977348 Polysaccharide modification in densified fluid
11/02/1999US5977347 Cellulose acetate propionate
11/02/1999US5977346 Fatty acid ester of cellulose, cellulose diacetate and processes for the preparation thereof
10/1999
10/27/1999EP0952160A1 Cellulose triacetate and method for its production
10/27/1999CN1232827A Cellulose triacetate and method for its production
10/26/1999US5973139 Carboxylated cellulose esters
10/07/1999WO1999050305A1 Molded article of biodegradable cellulose acetate and filter plug for article to be smoked
10/06/1999EP0946597A1 Preparation of chemically reactive polysaccharides
10/05/1999US5962677 Cellulose acetate with high moldability and process for production thereof
09/1999
09/30/1999WO1999049125A2 Modified textile and other materials and methods for their preparation
09/30/1999WO1999049124A2 Modified textile and other materials and methods for their preparation
09/30/1999CA2324949A1 Modified textile and other materials and methods for their preparation
09/30/1999CA2324377A1 Modified textile and other materials and methods for their preparation
09/22/1999EP0943626A1 Cellulose acetate and dope containing the same
09/22/1999CN1229088A Cellulose acetate and spinning solution containing the same
09/14/1999US5952260 An adduct of sulfuric acid with n,n-dimethylacetamide, a lower fatty acid having from 2 to 4 carbon atoms, free sulfuric acid or free n,n-dimethylacetamide
08/1999
08/12/1999WO1999040120A1 Carboxylated cellulose esters
08/12/1999CA2320273A1 Carboxylated cellulose esters
08/04/1999EP0752027B1 Esterified high lignin content cellulosic fibers
08/04/1999CN1044480C Process for producing cellulose acetate
07/1999
07/27/1999US5929229 Direct process for the production of cellulose esters
07/27/1999US5928613 Apparatus for acetylating cellulose
07/21/1999CN1223665A Process for preparing cellulose acetoacetate alkanoates
07/20/1999US5925181 Protectively coated chlorine-bleach particles for controlled release; cleaning compounds
07/06/1999US5919920 Washing mixture of cellulose acetate of varying molecular weights with solvent which elutes out low molecular weight components; producing low solution viscosity with high average degree of polymerization
06/1999
06/30/1999CN1221429A PH-sensitive modified cellulose ester
06/22/1999US5914397 Cellulose acetate excellent in physical strength, and process for production thereof
05/1999
05/25/1999US5906852 Surface-modified cellulose as low calorie flour replacements
05/25/1999US5906780 Process for producing a sponge
05/14/1999WO1999023118A1 The reaction of a polyhydroxy polymer or a derivative thereof with a lactone
05/14/1999WO1999022599A1 Surface-modified cellulose as low calorie flour replacements
05/11/1999CA2059130C Process for preparing cellulose esters by use of carboxylic acids
04/1999
04/28/1999EP0910602A1 Acetylation of lignocellulosic materials and applications thereof
04/14/1999CN1042940C Fatty acid ester of cellulose and preparing same
04/06/1999US5891075 Hydrolysis, acetic acid
03/1999
03/30/1999US5888550 Cellulose acetate phthalate enteric coating compositions
03/30/1999CA2070390C Process for preparing cellulose esters
03/02/1999US5876666 Release from nonaqueous hydrogen peroxide complex, medical instruments
02/1999
02/16/1999US5871573 Modified to contain unsaturated opendent groups or grafted with isocyanate or methacrylate groups; coatings for wood, metals, plastics, paper, boards, addition to printing inks, nail polish
02/10/1999EP0895514A1 Process for preparing cellulose acetoacetate alkanoates
02/09/1999US5869646 Method and apparatus for acetylating cellulose
01/1999
01/27/1999EP0893451A2 Polysaccharide modification in densified fluid
01/27/1999EP0892814A1 pH-SENSITIVE MODIFIED CELLULOSE ESTER
01/25/1999CA2243203A1 Polysaccharide modification in densified fluid
01/13/1999EP0889988A2 Aldehyde-modified cellulosic fibers for paper products having high initial wet strength
01/07/1999EP0888784A1 Cellulose ester wound dressing
01/05/1999US5856468 Cellulose acetate propionate, solution thereof and cellulose acetate propionate film
01/01/1999CA2242034A1 Cellulose ester wound dressing
12/1998
12/30/1998EP0750484B1 Fluid acquisition and distribution member for absorbent core
11/1998
11/25/1998CN1200128A Surface-modified cellulose microfibrils method for making same, and use thereof as a filler in composite materials
11/05/1998WO1998049200A1 Reactive cellulose and method for making same
11/05/1998CA2286572A1 Reactive cellulose and method for making same
10/1998
10/27/1998CA2089390C Process for obtaining highly esterified polyol fatty acid polyesters having reduced levels of difatty ketones and b-ketoesters
10/14/1998CN1040216C Process for preparing cellulose diacetate ester
10/13/1998US5821359 Acetylation of lignocellulosic fibres
10/07/1998EP0791002A4 Anionic polymer
10/06/1998US5817728 Lactone-polyester-polysaccharide interpolymer, high melt tension, foaming
09/1998
09/24/1998WO1998041543A1 Method for producing cellulose acetate
09/24/1998CA2283980A1 Method for producing cellulose acetate
09/23/1998CN1193982A Method for preparing a cellulose formate solution by impregnating and kneading cellulose slabs
09/09/1998EP0862422A1 Cellulose acetate phthalate enteric coating compositions
09/02/1998EP0861269A1 Uv curable cellulose esters
09/01/1998CA1340020C Process for preparing a powder of water-insoluble polymer which can be redispersed in a liquid phase, the resulting powder and utilization thereof
08/1998
08/26/1998EP0791015A4 Cationic polymer
08/18/1998CA2079558C Water-dispersible complex and a process for the production thereof
07/1998
07/30/1998DE19711502C1 Verfahren zur Herstellung von Celluloseacetat A process for producing cellulose acetate
07/29/1998CN1039333C Method for reducing precipitated insoluble matter quantity from cellulose acetate acetone solution
07/15/1998EP0852588A1 Surface-modified cellulose microfibrils, method for making same, and use thereof as a filler in composite materials
07/07/1998US5777101 Using acetic anhydride
06/1998
06/23/1998US5770739 Non-aqueous hydrogen peroxide complex
06/23/1998US5770726 Process for preparing a cellllose acetoacetate alkanoates
06/10/1998DE19638319C1 Production of soluble cellulose ester for wet spinning to fibre
05/1998
05/12/1998US5750677 Direct process for the production of cellulose esters
05/12/1998US5749863 Polycarboxylic acid crosslinked cellulose fibers minimizing skin wetness in absorbent artcles
04/1998
04/30/1998WO1998017692A1 Preparation of chemically reactive polysaccharides
04/22/1998EP0836622A1 Method for preparing a cellulose formate solution by impregnating and kneading cellulose slabs
04/21/1998US5741901 UV curable cellulose esters
03/1998
03/25/1998CN1177358A Photochemically cross-linked polysaccharide derivatives as supports for the chromatoghaphic separation of enantiomers
03/18/1998CN1176253A Cellulose acetate propionate, solution thereof and cellulose acetate propionate film
03/03/1998US5723151 Cellulose acetate phthalate enteric coating compositions
02/1998
02/10/1998US5716703 Fluid acquisition and distribution member for absorbent core
02/04/1998EP0822201A2 Cellulose acetate propionate, solution thereof and cellulose acetate propionate film
01/1998
01/22/1998DE19629206A1 Polymerisable poly:amide derivatives containing double bonds
01/15/1998WO1998001497A1 Acetylation of lignocellulosic materials and applications thereof
01/15/1998CA2262631A1 Acetylation of lignocellulosic materials and applications thereof
12/1997
12/31/1997CN1036851C Process for producing cellulose acetate
12/30/1997CA2126614C Acetylation method for material containing cellulose, and manufacturing method for modified wood
12/29/1997EP0813546A1 Photochemically cross-linked polysaccharide derivatives as supports for the chromatographic separation of enantiomers
12/17/1997EP0812941A2 Sponge and process for making the same
12/16/1997US5698688 Esterification; oxidation; wet strength
12/10/1997EP0750638A4 Chemical modification of shaped hydrogels in non-aqueous medium
12/09/1997CA2125881C Continuous hydrolysis of cellulose acetate
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