US PATENT SUBCLASS 523 / 410
.~.~.~.~.~.~ Polymer derived from ethylenic reactant only derived from reactant containing oxygen heterocycle

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}
402  DF  .~.~.~ Product contains water per se or water of hydration as designated nonreactive material (DNRM) {7}
406  DF  .~.~.~.~ Solid polymer derived from ethylenic reactants only (includes in situ reactants from plural 1,2-epoxides) {4}
409  DF  .~.~.~.~.~ Polymer derived from ethylenic reactants only derived from reactant containing chalcogen {3}
410.~.~.~.~.~.~ Polymer derived from ethylenic reactant only derived from reactant containing oxygen heterocycle

DEFINITION

Classification: 523/410

Polymer derived from ethylenic reactant only derived from reactant-containing oxygen heterocycle:

(under subclass 409) Subject matter wherein the polymer derived from ethylenic reactants only is derived from at least one reactant which contains an oxygen heterocyclic, e.g., polystyrene-maleic anhydride, etc.

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