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Class Information
Number: 536/67
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 > Formates
Description: Compounds in which the carboxylic acid moiety is the formate radical.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7595392 |
Biodegradable oxidized cellulose esters |
Sep. 29, 2009 |
| 6712896 |
Cellulose ester film, optical film, polarizing plate, optical compensation film and liquid crystal display |
Mar. 30, 2004 |
| 6022614 |
Method for preparing a cellulose formate solution by impregnating and kneading cellulose slabs |
Feb. 8, 2000 |
| 5880278 |
Composition containing cellulose formate, capable of forming an elastic, thermoreversible gel |
Mar. 9, 1999 |
| 5446140 |
Polymer blend composed of cellulose acetate and starch acetate and starch used to form fibers, films and plastic materials and a process to prepare said blend |
Aug. 29, 1995 |
| 5150721 |
Tobacco smoke filter material and process for production thereof |
Sep. 29, 1992 |
| 5142034 |
Cellulose ester compositions and process for the preparation thereof |
Aug. 25, 1992 |
| 5093486 |
Modified chitin for biocompatible dialysis membranes II and process for preparation of modified cellulose and modified chitin for use therewith |
Mar. 3, 1992 |
| 5093488 |
Modified chitin for biocompatible dialysis membranes III and process for preparation of modified cellulose and modified chitin for use therewith |
Mar. 3, 1992 |
| 5093489 |
Modified chitin for biocompatible dialysis membranes IV and process for preparation of modified cellulose and modified chitin for use therewith |
Mar. 3, 1992 |
| 5008385 |
Cellulose derivatives and fibers and membranes made therefrom |
Apr. 16, 1991 |
| 4997935 |
Modified cellulose for biocompatible dialysis membranes III and process for preparation thereof |
Mar. 5, 1991 |
| 4981960 |
Modified cellulose for biocompatible dialysis membranes IV and process for preparation thereof |
Jan. 1, 1991 |
| 4981959 |
Modified cellulose for biocompatible dialysis membranes II and process for preparation thereof |
Jan. 1, 1991 |
| 4839113 |
Anistropic compositions of cellulose esters; processes for obtaining such compositions; fibers of cellulose esters or cellulose |
Jun. 13, 1989 |
| 4480090 |
Process for esterification of cellulose using as the catalyst the combination of sulfuric acid, phosphoric acid and a hindered aliphatic alcohol |
Oct. 30, 1984 |
| 4097667 |
Hydroxyalkyl cellulose ethers |
Jun. 27, 1978 |
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