US PATENT SUBCLASS 526 / 238
.~.~.~.~ At least one monomer is nonhydrocarbon material

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}
89  DF  .~.~ Polymerizing in the presence of a specified material other than monomer {28}
237  DF  .~.~.~ Material contains metal halide, boron halide or organic complexes thereof, hydrogen halide, elemental halogen, or compound containing only halogen atoms {1}
238.~.~.~.~ At least one monomer is nonhydrocarbon material

DEFINITION

Classification: 526/238

(under subclass 237) Subject matter wherein at least one monomer is other than a hydrocarbon.

(1) Note. This subclass includes the inter-polymerization of a hydrocarbon monomer and a nonhydrocarbon monomer as well as homopolymers of nonhydrocarbon monomers.