US PATENT SUBCLASS 523 / 438
.~.~.~.~ Polymer derived from ethylenic reactants only derived from plural unsaturated reactant

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

*  DD  SYNTHETIC RESINS (Class 520, Subclass 1) {1}
1  DF  .~ 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 {71}
400  DF  .~.~ Process of forming a composition containing a nonreactive material (NRM) and a polymer containing more than one 1,2-epoxy group, or a preformed polymer derived from or admixed with a reactant containing more than one 1,2-epoxy group, or with a polymer derived from an epihalohydrin and a polyhydric phenol or polyol; or composition or product thereof {24}
437  DF  .~.~.~ Two or more polymers derived from ethylenic reactants only {1}
438.~.~.~.~ Polymer derived from ethylenic reactants only derived from plural unsaturated reactant

DEFINITION

Classification: 523/438

Polymer derived from ethylenic reactants only derived from plural unsaturated reactants:

(under subclass 437) Subject matter wherein a polymer derived from ethylenic reactants only is derived from a plural unsaturated reactant, e.g., butadiene, 1,4-divinylbenzene, etc.