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Class Information
Number: 536/76
Name: Organic compounds -- part of the class 532-570 series > Organic compounds (class 532, subclass 1) > Carbohydrates or derivatives > Cellulose or derivative > Esters > Carboxylic acid esters > Acetates > Subsequent treatment process
Description: Processes in which cellulose acetates are purified, recovered, separated, altered physically; or treated chemically wherein the primary intent is merely to modify a property of the cellulose acetate.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 5484913 |
Calcium-modified oxidized cellulose hemostat |
Jan. 16, 1996 |
| 5451672 |
Process for producing cellulose acetate |
Sep. 19, 1995 |
| 5449555 |
Cellulose acetate filaments, an optically isotropic spinning solution therefor, and use thereof for the production of filaments |
Sep. 12, 1995 |
| 5371211 |
Cellulose esters and salts thereof |
Dec. 6, 1994 |
| 5364935 |
Continuous hydrolysis of cellulose acetate |
Nov. 15, 1994 |
| 5330642 |
Method of filtering cellulose acetate solutions as well as a plant for carrying out the method |
Jul. 19, 1994 |
| 5328934 |
Recycling cellulose esters from the waste from cigarette manufacture |
Jul. 12, 1994 |
| 5294703 |
Process for preparing .alpha.-D-cellobiose octaacetate |
Mar. 15, 1994 |
| 5244734 |
Fine cellulose particles and process for production thereof |
Sep. 14, 1993 |
| 5214137 |
Preparation of cellulose diacetate by recycling processed film |
May. 25, 1993 |
| 5202432 |
Assay for an analyte on a solid porous support |
Apr. 13, 1993 |
| 5175276 |
Process for the production of cellulose ester fibrets |
Dec. 29, 1992 |
| 5150723 |
Process for the production of tobacco smoke filters |
Sep. 29, 1992 |
| 5142034 |
Cellulose ester compositions and process for the preparation thereof |
Aug. 25, 1992 |
| 5064949 |
Cellulose ester microparticles and process for making the same |
Nov. 12, 1991 |
| 5059659 |
Surface treatments to impart hydrophilicity |
Oct. 22, 1991 |
| 5026841 |
Process for the preparation of finely divided porous cellulose particles |
Jun. 25, 1991 |
| 5024232 |
Novel radiopaque heavy metal polymer complexes, compositions of matter and articles prepared therefrom |
Jun. 18, 1991 |
| 5021201 |
Process for preparing uniform discoid particles |
Jun. 4, 1991 |
| 4958014 |
Multi-cellular cellulose particle and process for preparation thereof |
Sep. 18, 1990 |
| 4888420 |
Water soluble cellulose acetate microspheres |
Dec. 19, 1989 |
| 4882392 |
Novel radiopaque heavy metal polymer complexes, compositions of matter and articles prepared therefrom |
Nov. 21, 1989 |
| 4837271 |
Curable mixtures and their use |
Jun. 6, 1989 |
| 4697007 |
Preparation of microcrystalline triacetylcellulose |
Sep. 29, 1987 |
| 4663447 |
Porous spherical cellulose acetate particles |
May. 5, 1987 |
| 4638057 |
Cellulose acetate molding containing odoriferous substance |
Jan. 20, 1987 |
| 4590265 |
Carboxylated cellulose ester and manufacture thereof |
May. 20, 1986 |
| 4551389 |
Porous spherical cellulose acetate particles |
Nov. 5, 1985 |
| 4549012 |
Fluorinated cellulose acetate polymers |
Oct. 22, 1985 |
| 4518433 |
Enteric coating for pharmaceutical dosage forms |
May. 21, 1985 |
| 4501886 |
Cellulosic fibers from anisotropic solutions |
Feb. 26, 1985 |
| 4499043 |
Process for producing a cellulose ester support |
Feb. 12, 1985 |
| 4461892 |
Process for preparing porous spherical cellulose particles |
Jul. 24, 1984 |
| 4415734 |
Process for preparation of cellulose acetate |
Nov. 15, 1983 |
| 4390691 |
Process for preparing porous spherical cellulose particles |
Jun. 28, 1983 |
| 4357295 |
Process for eliminating haze from articles made of cellulose acetate butyrate |
Nov. 2, 1982 |
| 4342865 |
High temperature bleaching method for cellulose esters |
Aug. 3, 1982 |
| 4312980 |
Process for preparing porous cellulose spherical particles |
Jan. 26, 1982 |
| 4306060 |
Process for preparation of cellulose acetate |
Dec. 15, 1981 |
| 4271291 |
Process for recovering cellulose ester fines |
Jun. 2, 1981 |
| 4269972 |
Process for producing cellulose diacetate having improved resistance to delustering phenomenon in hot water |
May. 26, 1981 |
| 4249000 |
Modified polymers |
Feb. 3, 1981 |
| 4243776 |
Preparation of non-thrombogenic polymeric material article with platelet anti-aggregative agent |
Jan. 6, 1981 |
| 4234528 |
Asymmetrical ultrafiltration membrane based on cellulose hydrate |
Nov. 18, 1980 |
| 4228276 |
Direct precipitation method for producing extrusion-grade cellulose acetate powder and resulting product |
Oct. 14, 1980 |
| 4077971 |
Tetrahydrophthalimide methyl-2-phenylbenzatriazoles |
Mar. 7, 1978 |
| 4005070 |
Polymer derivative of -diethylaminoethyl ester of p-aminobenzoic acid with celluloseglycolic acid, method of producing and application thereof |
Jan. 25, 1977 |
| 3971627 |
Epoxy-azido compounds |
Jul. 27, 1976 |
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