US PATENT SUBCLASS 526 / 237
.~.~.~ Material contains metal halide, boron halide or organic complexes thereof, hydrogen halide, elemental halogen, or compound containing only halogen atoms

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.~.~.~ Material contains metal halide, boron halide or organic complexes thereof, hydrogen halide, elemental halogen, or compound containing only halogen atoms {1}
238  DF  .~.~.~.~> At least one monomer is nonhydrocarbon material

DEFINITION

Classification: 526/237

(under subclass 89) Subject matter wherein the specified material contains (1) elemental halogen; or (2) a boron halide or nonmetallic organic complex thereof; or (3) a hydrogen halide; or (4) an aluminum trihalide or a nonmetallic organic complex thereof; or (5) a compound

containing only halogen atoms; or (6) a metallic halide other than transition metal, aluminum or a nontransition heavy metal.

SEE OR SEARCH THIS CLASS, SUBCLASS:

195+, for polymerizing in the presence of a boron compound which is other than boron trihalide or a nonmetallic organic complex thereof.

221, for polymerizing in the presence of a halide of a heavy metal.

226, for polymerizing in the presence of an aluminum compound which is other than aluminum trihalide or a nonmetallic organic complex thereof.