| |
 |
|
Class Information
Number: 536/73
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 > Sulfur containing compound utilized in pretreatment
Description: Processes wherein a sulfur containing compound is also used in the pretreatment.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 5928613 |
Apparatus for acetylating cellulose |
Jul. 27, 1999 |
| 5869646 |
Method and apparatus for acetylating cellulose |
Feb. 9, 1999 |
| 5770726 |
Process for preparing a cellllose acetoacetate alkanoates |
Jun. 23, 1998 |
| 5608050 |
Process for the manufacture of cellulose acetate |
Mar. 4, 1997 |
| 5294703 |
Process for preparing .alpha.-D-cellobiose octaacetate |
Mar. 15, 1994 |
| 4697007 |
Preparation of microcrystalline triacetylcellulose |
Sep. 29, 1987 |
| 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 |
| 4306060 |
Process for preparation of cellulose acetate |
Dec. 15, 1981 |
|
|
|
