US PATENT SUBCLASS 525 / 185
.~.~.~ With additional solid polymer derived from at least one nonethylenic reactant

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}
185.~.~.~ With additional solid polymer derived from at least one nonethylenic reactant {4}
186  DF  .~.~.~.~> At least one reactant which forms additional polymer contains a heterocyclic ring {1}
188  DF  .~.~.~.~> At least one reactant which forms additional polymer contains a phosphorus atom
189  DF  .~.~.~.~> At least one reactant which forms additional polymer contains a sulfur atom
190  DF  .~.~.~.~> At least one reactant which forms additional polymer contains a carboxylic acid or derivative

DEFINITION

Classification: 525/185

With additional solid polymer derived from at least one nonethylenic reactant:

(under subclass 55) Subject matter wherein the solid polymer derived from ethylenic reactants only is contacted with an additional solid polymer derived from at least one nonethylenic reactant, e.g., a copolymer derived from carbon monoxide and ethylene, etc.