Organic compounds (class 532, subclass 1) > Carbohydrates or derivatives > Cellulose or derivative > Esters > Carboxylic acid esters > Acetates > With pretreatment process > Sulfur containing compound utilized in pretreatment > Patents

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Class Information
Number: 536/74
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 > Sulfur containing compound utilized in pretreatment
Description: Processes in which a sulfur containing compound is 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
4906579	New catalytically oxidized polyglucosic units and methods of making same leading to aldehyde groups on the C-6 position of polyglucosic product and new products therefrom	Mar. 6, 1990
4697007	Preparation of microcrystalline triacetylcellulose	Sep. 29, 1987
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