US PATENT SUBCLASS 536 / 64
.~.~.~.~.~ Mixed carboxylate esters

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}
64.~.~.~.~.~ Mixed carboxylate esters {1}
65  DF  .~.~.~.~.~.~> Propionate, butyrate or isobutyrate containing

DEFINITION

Classification: 536/64

(under subclass 63) Compounds which contain at least two diverse carboxylic acid moieties.

(1) Note. This subclass provides for stearyl cellulose acetate, for example.