US PATENT SUBCLASS 525 / 114
.~.~.~.~ With additional heterocyclic reactant free of 1,2-epoxy group

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

*  DD  SYNTHETIC RESINS (Class 520, Subclass 1) {4}
50  DF  .~ MIXING OF TWO OR MORE SOLID POLYMERS; MIXING OF SOLID POLYMER OR SICP WITH SICP OR SPFI; MIXING OF SICP WITH AN ETHYLENIC AGENT; MIXING OF SOLID POLYMER WITH A CHEMICAL TREATING OR ETHYLENIC AGENT; OR PROCESSES OF FORMING OR REACTING; OR THE RESULTANT PRODUCT OF ANY OF THE ABOVE OPERATIONS {32}
55  DF  .~.~ At least one solid polymer derived from ethylenic reactants only {25}
107  DF  .~.~.~ With saturated 1,2-epoxy reactant containing more than one 1,2-epoxy group per mole or polymer derived therefrom; or with solid copolymer derived from at least one saturated reactant and at least one unsaturated 1,2-epoxy reactant wherein the epoxy reactant contains more than one 1,2-epoxy group per mole {16}
114.~.~.~.~ With additional heterocyclic reactant free of 1,2-epoxy group

DEFINITION

Classification: 525/114

With additional heterocyclic reactant free of 1, 2-epoxy group:

(under subclass 107) Subject matter wherein there is, in addition, a non-1, 2-epoxy heterocyclic reactant which an be added at any time to the solid polymer from ethylenic reactants only (e.g., phthalic anhydride, etc.)