US PATENT SUBCLASS 523 / 437
.~.~.~ Two or more polymers derived from ethylenic reactants only


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.~.~.~ Two or more polymers derived from ethylenic reactants only {1}
438  DF  .~.~.~.~> Polymer derived from ethylenic reactants only derived from plural unsaturated reactant


DEFINITION

Classification: 523/437

Two or more polymers derived from ethylenic reactants only:

(under subclass 400) Subject matter wherein the composition contains two or more solid polymers derived from ethylenic reactants only, e.g., polymethyl methacrylate admixed with polybutadiene-styrene, etc.