Catalysts for polymerizing alpha-olefin based cyclopentadienyl Group 6b metal mixed-valence metal alkali and its use in polymerization processes.

摘要

DESCRIBED a catalyst for the homopolymerization of ALFA SYSTEM AS CATALYST PRECURSOR COMPOUND Dimer WITH SEVERAL valences of a metal of Group 6B, in which an atom of the metal is a complex hydrocarbyl metallic cyclopentadienyl, IN WHICH THE METAL PRESENTS +3 oxidation state and being another atom of the metal cyclopentadienyl Alkaril COMPLEX IN WHICH THE METAL HAS A +1 oxidation state, said compounds being supported METALLIC dimeric an inorganic support. Said catalyst system may contain, in addition, a compound HIRE