US PATENT SUBCLASS 524 / 53
.~.~.~.~.~.~ At least one carboxylic acid ester

Current as of: June, 1999
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524 /   HD   SYNTHETIC RESINS OR NATURAL RUBBERS -- PART OF THE CLASS 520 SERIES

*  DD  SYNTHETIC RESINS (Class 520, Subclass 1) {1}
*  DD  .~ PROCESSES OF PREPARING A DESIRED OR INTENTIONAL COMPOSITION OF AT LEAST ONE NONREACTANT MATERIAL AND AT LEAST ONE SOLID POLYMER OR SPECIFIED INTERMEDIATE CONDENSATION PRODUCT, OR PRODUCT THEREOF (Class 523, subclass 1) {17}
1  DF  .~.~ Adding a NRM to a preformed solid polymer or preformed specified intermediate condensation product, composition thereof; or process of treating or composition thereof {31}
27  DF  .~.~.~ Carbohydrate or derivative DNRM {9}
47  DF  .~.~.~.~ Starch or derivative or farinaceous meal or flour {5}
52  DF  .~.~.~.~.~ Solid polymer derived from ethylenic reactants only {1}
53.~.~.~.~.~.~ At least one carboxylic acid ester

DEFINITION

Classification: 524/53

At least one carboxylic acid ester:

(under subclass 52) Subject matter wherein the solid polymer derived from ethylenic reactants only is derived from at least one carboxylic acid ester.

(1) Note. See the Class 520 Glossary wherein the term "carboxylic acid ester" is defined under "carboxylic acid or derivative".