Patent ID: 7169865
Filing Date: 2007-01-30
Classification: C07F,C08F,Y10S

Abstract:
1. A process for the homopolymerization or copolymerization of one or more olefins, cycloolefins, isoolefins, alkynes or diolefins monomers comprising the step of admixing one or more monomer in the presence of at least one transition metal compounds having at least two ligands and at least one donor-acceptor interaction between the ligands, wherein at least one ligand is a fluorenyl ligand and the transition metal compound has at least one alkyl or aryl group on at least one acceptor atom and optionally one or more cocatalyst, wherein the process is carried out at a temperature from about −60 to about +250° C., wherein the process produces polymers having a mean viscosity molar mass M η greater than 500 kg/mol.