METAL COMPLEX COMPOSITIONS AND THEIR USE AS CATALYSTS TO PRODUCE POLYDIENES

摘要

This invention relates to metal complex compositions, their preparation and their use as catalysts to produce polymers of conjugated dienes through polymerization of conjugated diene monomers. The used metal complex compositions are transition metal compounds in combination with an activator compound, optionally with a transition metal halide compound and optionally a catalyst modifier and optionally an inorganic or organic support material. The metal complexes comprises metals of group 3 to 10 of the Periodic System of the Elements in combination with activators, and optionally transition metal halide compounds of groups 3 to 10 of the Periodic Table of the Elements including lanthanide metals and actinide metals and optionally, catalyst modifiers, especially Lewis acids and optionally an inorganic or organic support material.More in particular the invention relates metal complex compositions, their preparation and their use as catalysts to produce homopolymers of conjugated dienes, preferably, but not limited to, through polymerization of 1,3-butadiene or isoprene.