US PATENT SUBCLASS 526 / 221
.~.~.~ Material contains inorganic heavy metal compound


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}
221.~.~.~ Material contains inorganic heavy metal compound


DEFINITION

Classification: 526/221

(under subclass 89) Subject matter wherein the specified material contains at least one compound having a heavy metal atom therein.

SEE OR SEARCH THIS CLASS, SUBCLASS:

90+, for a polymerization process in the presence of a transition metal atom.

188, for a polymerization processs in the presence of an organoaluminum compound which may also contain a heavy metal therein, or in presence of a composition of an organoaluminum compound and an elemental or compound form of a heavy metal.

190, for a polymerization process in the presence of a heavy metal-organocarbon bond.

191, for a polymerization process in the presence of an elemental heavy metal.

192, for a polymerization process in the presence of an organic compound which contains a heavy metal therein.