US PATENT SUBCLASS 536 / 66
.~.~.~.~.~ Ether-esters

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


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}
66.~.~.~.~.~ Ether-esters

DEFINITION

Classification: 536/66

(under subclass 63) Compounds which additionally contain an ether moiety.

(1) Note. The ether moiety may exist (1) independently of the ester moiety as in ethyl cellulose acetate, (2) by connection to the cellulose via an intervening ester linkage, as in cellulose ethoxy acetate, or (3) by direct connection to the cellulose with the ester radical connected to the ether radical as in acetoxyethyl cellulose.