US PATENT SUBCLASS 536 / 111-- .~.~.~ Ethers

US PATENT SUBCLASS 536 / 111
.~.~.~ Ethers

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}
102	DF	.~.~ Starch or derivative {6}
111		.~.~.~ Ethers

DEFINITION

Classification: 536/111

(under subclass 102) Compounds having the general formula ROR', wherein RO- is the starch residue moiety and R' is an organic radical.

(1) Note. Starch ethers are made by substituting an organic radical for the hydrogen atom of a portion of the hydroxyl groups of starch.

(2) Note. The attached organic radical R' is referred to as the etherifying radical.

SEE OR SEARCH THIS CLASS, SUBCLASS:

47, for nitrogen containing starch molecules connected via ether linkage.

50, for nitrogen containing starch ethers.

106, for starch ethers that are cross-linked.