US PATENT SUBCLASS 526 / 116
.~.~.~.~.~.~ At least one Group IVB metal atom (Ti, Zr, Hf) and at least one Group VB meta l (V, Nb, Ta)

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}
113  DF  .~.~.~.~ Two or more diverse transition metal atoms in distinct compounds or in the same compound {2}
114  DF  .~.~.~.~.~ Contains non-transition elemental metal, hydride thereof, or carbon to non transition metal atom bond {2}
116.~.~.~.~.~.~ At least one Group IVB metal atom (Ti, Zr, Hf) and at least one Group VB meta l (V, Nb, Ta)

DEFINITION

Classification: 526/116

(under subclass 114) Subject matter wherein at least one of the transition metal atoms present is a Group IVB atom and wherein at least one of the different transition metal atoms present is a Group VB atom (e.g., TiCl4 and VOCL3, etc.).

(1) Note. A Group IV atom is Ti, Zr, Hf. A Group VB atom is V, Nb, Ta.