PROCESS FOR HOMO- OR COPOLYMERIZATION OF CONJUGATED DIENES AND IN SITU FORMATION OF POLYMER BLENDS AND PRODUCTS MADE THEREBY

摘要

Metal complexes are disclosed containing at least one metal - nitrogen or metal - phosphorus bond, more particularly at least one metal - nitrogen or metal - phosphorus bond and at least one bond by the metal to an aromatic ring system. The preparation of the catalyst and the use of the prepared catalyst to produce homopolymers or copolymers of conjugated dienes or copolymers of conjugated dienes with alpha-olefins are also disclosed. In particular, the production of 1) polymer blends of a) homo- or copolymers of conjugated dienes through polymerization of 1,3-butadiene and/or isoprene with b) copolymers of conjugated dienes with alpha olefins through copolymerization of 1,3-butadiene or isoprene with ethylene, propene, octene or styrene and 2) polymer blends of a) homo- or copolymers of conjugated dienes through polymerization of 1,3-butadiene and/or isoprene with b) homopolymers or copolymers of alpha olefins through homo- or copolymerization of ethylene, propene, octene or styrene in the same reaction system using the catalyst system of the invention is described.