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Class Information
Number: 536/71
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 > With pretreatment process > Acetic acid utilized in pretreatment
Description: Processes in which acetic acid is used in the pretreatment.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6803458 |
Cellulose acetates and process for producing the cellulose acetates |
Oct. 12, 2004 |
| 6683174 |
Cellulose triacetates and methods for producing the cellulose triacetates |
Jan. 27, 2004 |
| 5973139 |
Carboxylated cellulose esters |
Oct. 26, 1999 |
| 5962677 |
Cellulose acetate with high moldability and process for production thereof |
Oct. 5, 1999 |
| 5928613 |
Apparatus for acetylating cellulose |
Jul. 27, 1999 |
| 5929229 |
Direct process for the production of cellulose esters |
Jul. 27, 1999 |
| 5914397 |
Cellulose acetate excellent in physical strength, and process for production thereof |
Jun. 22, 1999 |
| 5869646 |
Method and apparatus for acetylating cellulose |
Feb. 9, 1999 |
| 5821359 |
Acetylation of lignocellulosic fibres |
Oct. 13, 1998 |
| 5770726 |
Process for preparing a cellllose acetoacetate alkanoates |
Jun. 23, 1998 |
| 5723600 |
Method for incorporating cellulose esters into cellulose by immersing cellulose in an acid-dope solution |
Mar. 3, 1998 |
| 5667691 |
Process for extracting water and acetic acid from the aqueous phase of cellulose acetate |
Sep. 16, 1997 |
| 5608050 |
Process for the manufacture of cellulose acetate |
Mar. 4, 1997 |
| 5371207 |
Pressure pretreatment for improving the acetylation of cellulose |
Dec. 6, 1994 |
| 5364935 |
Continuous hydrolysis of cellulose acetate |
Nov. 15, 1994 |
| 5294703 |
Process for preparing .alpha.-D-cellobiose octaacetate |
Mar. 15, 1994 |
| 5244945 |
Synthesis of plastics from recycled paper and sugar cane |
Sep. 14, 1993 |
| 5141006 |
Tobacco smoke filter material and process for production thereof |
Aug. 25, 1992 |
| 5116968 |
Macrolide compounds |
May. 26, 1992 |
| 5114535 |
Process for the production of cellulose acetate from wood pulp |
May. 19, 1992 |
| 5003056 |
Antibiotic NK86-0279, process for production of the same and application of the same |
Mar. 26, 1991 |
| 4590266 |
Process for preparing cellulose acetate |
May. 20, 1986 |
| 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 |
| 4439605 |
Process for producing cellulose acetate |
Mar. 27, 1984 |
| 4336370 |
Process for activating cellulose pulp to improve ease of esterification |
Jun. 22, 1982 |
| 4306060 |
Process for preparation of cellulose acetate |
Dec. 15, 1981 |
| 4269972 |
Process for producing cellulose diacetate having improved resistance to delustering phenomenon in hot water |
May. 26, 1981 |
| 4234719 |
Preparation of cellulose acetate |
Nov. 18, 1980 |
| 4234718 |
Process for preparing cellulose acetate |
Nov. 18, 1980 |
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