US PATENT SUBCLASS 526 / 164
.~.~.~.~.~ Transition metal is IB, IIIB, VIIB or atomic number 58-71, 88, 90 or higher

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}
90  DF  .~.~.~ Material contains transition metal or compound thereof {15}
159  DF  .~.~.~.~ Material contains non-transition elemental metal, hydride thereof, or carbon to non-transition metal atom bond {11}
164.~.~.~.~.~ Transition metal is IB, IIIB, VIIB or atomic number 58-71, 88, 90 or higher

DEFINITION

Classification: 526/164

(under subclass 159) Subject matter wherein the transition metal of the transition metal compound is a Group IB, IIIB, or VIIB atom, or has an atomic number of 58-71, or 90 and higher.