Patent ID: 7060768
Filing Date: 2006-06-13
Classification: C07F,C08F

Abstract:
1. A process for the polymerization of olefins, comprising the step of contacting, under polymerizing conditions, one or more polymerizable olefins with an active polymerization catalyst comprising a group 3 through 11 (IUPAC) transition metal or lanthanide metal complex of a ligand of the formula (I) wherein: Z is nitrogen and Q is phosphorus, or Z is oxygen and Q is phosphorus, or Z is oxygen and Q is nitrogen; provided that: when Q is phosphorous and Z is nitrogen: when Q is phosphorous and Z is oxygen: R R R R R provided that any two of R R R R R provided that any two of R when Q is nitrogen: R −0.90 or less; R R R R R R provided that when R further provided that any two of R