US PATENT SUBCLASS 524 / 592
.~.~.~ From ketone or ketene reactant

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}
592.~.~.~ From ketone or ketene reactant

DEFINITION

Classification: 524/592

From ketone or ketene reactant:

(under subclass 1) Subject matter which involves the mixing of a nonreactant material with a solid polymer or SICP derived form at least one ketone reactant.

(1) Note. See the Class 520 Glossary for a definition of the term "ketone".

(2) Note. For purposes of this subclass, a reactant having a ketene (C=C=O) group is considered as being a ketone.