Supported solid catalyst for the polymerisation of conjugated dienes, process for preparing the same and polymerisation process using the catalyst

摘要

Catalyst for the polymerization of conjugated dienes which comprises the reaction product of a complex of a rare earth metal with an aluminum halide in an aromatic solvent and a solid support comprising at least one metal oxide. The complex is of formula M(Ar)(AlX4)3, M = a rare earth metal with atomic number 57-71 in the periodic table; Ar = an aromatic hydrocarbon solvent; X = F, Cl, Br, I An Independent claim is included for a method of polymerization of conjugated dienes (preferably 1,3-butadiene and/or isoprene) in inert hydrocarbon solvent using the claimed catalyst and trialkylaluminum or dialkylaluminum chloride activator.