Patent ID: 6706830
Filing Date: 2004-03-16
Classification: C08F

Abstract:
A process for the copolymerization of conjugated diolefins with non-conjugated olefins comprising the step of polymerizing said conjugated diolefins and non-conjugated olefins in the presence of catalysts comprising at least one allyl compound of the rare earth metals, in the presence of aliphatic and/or aromatic solvents at temperatures of âˆ’30 to +160Â° C., wherein the catalyst is employed in amounts of 1 &mgr;mole to 10 mmoles based upon 100 g of the conjugated diolefins, and the non-conjugated olefin is employed in amounts of 5 g to 2000 g based upon 100 g of the conjugated diolefins.