TITANIUM AND ZIRCONIUM COMPLEXES, PROCESS OF THEIR PREPARATION, ADDITION POLYMERIZATION CATALYSTS BEING PREPARED FROM THE COMPLEXES AND POLYMERIZATION PROCESS

摘要

Novel catalytic derivatives of titanium or zirconium complexes containing one and only one cyclic delocalized, anionic, +529 -bonded group wherein the metal is in the +2 formal oxidation state and having a bridged ligand structure and an activating cocatalyst are useful as catalysts for polymerizing olefins, diolefins and/or acetylenically unsaturated monomers.