Patent ID: 7009014
Filing Date: 2006-03-07
Classification: C08F

Abstract:
1. A process for polymerizing an olefin comprising polymerizing or copolymerizing an olefin at a polymerization reaction temperature of 50 to 170° C. in the presence of an olefin polymerization catalyst consisting essentially of: (A) a transition metal compound represented by the following formula (I), (B-1) an organoaluminum compound having reducing ability which reacts with the transition metal compound (A) to convert an imine structure moiety to a metal amide structure, and (B-2) a compound which reacts with the transition metal compound (A) to form an ion pair; wherein said transition metal compound is represented by the following formula (I) wherein M is a transition metal atom of Groups 4 and 5 of the periodic table, m is an integer of 1 to 6, Y is an oxygen atom, a sulfur atom or a selenium atom, or a nitrogen atom having a substituent R R n is a number satisfying a valence of M, and X is a hydrogen atom, a halogen atom, a hydrocarbon group, an oxygen-containing group, a nitrogen-containing group, a boron-containing group, a sulfur-containing group, a phosphorus-containing group, a halogen-containing group, an aluminum-containing group, a heterocyclic compound residual group, a silicon-containing group, a germanium-containing group or a tin-containing group, and when n is 2 or greater, plural groups indicated by X may be the same or different, and plural groups indicated by X may be bonded to each other to form a ring, and wherein the catalyst activity is at least 1000 kg polyolefin/mole transition metal atom hr.