US PATENT SUBCLASS 526 / 76
.~.~.~ Polymerizable material derived from petroleum fraction

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

*  DD  SYNTHETIC RESINS (Class 520, Subclass 1) {8}
72  DF  .~ POLYMERS FROM ONLY ETHYLENIC MONOMERS OR PROCESSES OF POLYMERIZING, POLYMERIZABLE COMPOSITIONS CONTAINING ONLY ETHYLENIC MONOMERS AS REACTANTS OR PROCESSES OF PREPARING {43}
75  DF  .~.~ Including step of synthesis of monomer or pre-polymer {1}
76.~.~.~ Polymerizable material derived from petroleum fraction

DEFINITION

Classification: 526/76

(under subclass 75) Subject matter wherein the monomer or prepolymer is derived from a petroleum fraction.

(1) Note. Included herein are processes of recovering hydrocarbon materials from a crude-natural source followed by a chemical reaction (e.g., dimerization, etc.) and subsequent final polymerization.