US PATENT SUBCLASS 523 / 523
.~.~.~ Contains solid polymer derived from ethylenic reactants only, one of which contains chalcogen; or solid polymer reacted with ethylenic reactant containing chalcogen

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}
500  DF  .~.~ Process of forming a composition of an ethylenically unsaturated reactant or ethylenically unsaturated polymer admixed with nonreactive material (NRM) and a polyester whose polymer backbone was derived through the direct formation of the ester linkage, e.g., polyethylene terephthalate, polycaprolactone, etc., or product thereof {17}
523.~.~.~ Contains solid polymer derived from ethylenic reactants only, one of which contains chalcogen; or solid polymer reacted with ethylenic reactant containing chalcogen

DEFINITION

Classification: 523/523

Contains solid polymer derived from ethylenic reactants only, one of which contains chalcogen; or solid polymer reacted with ethylenic reactant-containing chalcogen:

(under subclass 500) Subject matter wherein the composition contains a solid polymer derived from ethylenic reactants only wherein at least one of the reactants contains chalcogen, e.g., polyethylene-vinyl acetate copolymer, etc.; or a solid polymer reacted with an ethylenic reactant containing a chalcogen atom, e.g., reacting methyl acrylate with polyethylene glycol maleate, phenol-formaldehyde novolak with methyl methacrylate, polymethyl methacrylate with styrene, etc.

(1) Note. Chalcogen for purposes of this subclass includes oxygen, sulfur, selenium, or tellurium.