Patent ID: 6756455
Filing Date: 2004-06-29
Classification: C08F

Abstract:
A process which comprises polymerizing one or more olefins in solution in a reaction zone in a multi-stage reactor under adiabatic conditions at a temperature greater than 130Â° C. and a pressure greater than 200 psig in the presence of a catalyst system comprising: (a) an activator; and (b) an organometallic complex which comprises a Group 3-10 transition metal and a bridged indenoindolyl ligand of the general structure:A-G-L in which A is an indenoindolyl group, G is a bridging group, and L is another indenoindolyl group or a polymerization-stable, cyclopentadienyl-like group having an extended pi-electron system, wherein both A and L are pi-bonded to the metal; and wherein the average residence time of the olefin in the reaction zone is less than 10 minutes.