US PATENT SUBCLASS 525 / 72
.~.~.~.~ Mixture contains solid polymer derived from reactants containing an atom other than C, H, O, N, or chlorine

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}
70  DF  .~.~.~ Mixing of solid graft or graft-type copolymer derived from ethylenic reactants only with other solid polymer derived from ethylenic reactants only; or treating said mixture with chemical treating agent; or processes of forming or reacting; or the resultant product of any of the above operations {11}
72.~.~.~.~ Mixture contains solid polymer derived from reactants containing an atom other than C, H, O, N, or chlorine

DEFINITION

Classification: 525/72

Mixture contains solid polymer derived from reactants containing an atom other than C, H, O, N, or chlorine:

(under subclass 70) Subject matter wherein a solid polymer is derived from or has been reacted with an ethylenic reactant containing an element other than carbon, hydrogen, oxygen, nitrogen, and chlorine.