US PATENT SUBCLASS 536 / 83-- .~.~.~.~.~.~ Halogen containing compound utilized in process

US PATENT SUBCLASS 536 / 83
.~.~.~.~.~.~ Halogen containing compound utilized in process

Current as of: June, 1999
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536 /	HD	ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES

*	DD	ORGANIC COMPOUNDS (Class 532, Subclass 1) {1}
1.11	DF	.~ Carbohydrates or derivatives {15}
56	DF	.~.~ Cellulose or derivative {4}
58	DF	.~.~.~ Esters {3}
63	DF	.~.~.~.~ Carboxylic acid esters {5}
69	DF	.~.~.~.~.~ Acetates {3}
83		.~.~.~.~.~.~ Halogen containing compound utilized in process

DEFINITION

Classification: 536/83

(under subclass 69) Processes in which a halogen containing compound is utilized in the formation of cellulose acetate.

SEE OR SEARCH THIS CLASS, SUBCLASS:

72, and 75, for a process of making cellulose acetate which includes a pretreatment wherein a halogen containing compound

is utilized in pretreating the cellulose or in forming the cellulose acetate.

82, for a process which includes subsequent treatment of cellulose acetate and the use of a halogen containing compound in the subsequent treatment or in the formation of the cellulose acetate.