US PATENT SUBCLASS 526 / 290
.~.~ Monomer from unsaturated petroleum hydrocarbon fraction; from unsaturated coal or bituminous material, extract, or derivative thereof; or from unsaturated fatty still residue

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}
290.~.~ Monomer from unsaturated petroleum hydrocarbon fraction; from unsaturated coal or bituminous material, extract, or derivative thereof; or from unsaturated fatty still residue

DEFINITION

Classification: 526/290

(under subclass 72) Subject matter wherein the unsaturated monomer is a mixture of hydrocarbons derived from a petroleum hydrocarbon fraction; or the unsaturated monomer is an unsaturated coal, bituminous material, extract or derivative thereof; or the unsaturated monomer is an unsaturated fatty still residue; or mixtures of said unsaturated monomers.

(1) Note. This subclass includes polymers wherein added

material is interpolymerized with a petroleum hydrocarbon fraction.

SEE OR SEARCH THIS CLASS, SUBCLASS:

76, for the combination of preparing a monomer by a chemical reaction involving a petroleum fraction and subsequent polymerization of said monomer.

267, for an interpolymer containing coumarone and indene.

280+, for a polymer prepared from a fused or bridged ring ethylenic unsaturated monomer.