US PATENT SUBCLASS 525 / 327.9
.~.~.~.~ Polymer from unsaturated petroleum hydrocarbon fraction as monomer

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}
326.1  DF  .~.~.~ Chemically after treated solid polymers derived from ethylenically unsaturated monomers only {24}
327.9.~.~.~.~ Polymer from unsaturated petroleum hydrocarbon fraction as monomer

DEFINITION

Classification: 525/327.9

Polymer for unsaturated petroleum hydrocarbon fraction as monomer:

Product under subcass 326.1 wherein a solid polymer which has been chemically modified is prepared by the polymerization of a mixture of hydrocarbons derived from a petroleum hydrocarbon fraction.

(1) Note. This subclass includes chemically modified

polymers wherein added material is interpolymerized with a petroleum hydrocarbon fraction.

SEE OR SEARCH THIS CLASS, SUBCLASS:

327.2, for chemically modified interpolymer of coumarone and indene.

332.1, for a chemically modified polymer derived from a diene monomer wherein at least one monomer contains a fused or bridged ring or at least one cycloaliphatic structure.

SEE OR SEARCH CLASS

526, Synthetic Resins or Natural Rubbers, 290, for the polymerization of a mixture of hydrocarbons derived from a petroleum hydrocarbon fraction.