Patent ID: 6355748
Filing Date: 2002-03-12
Classification: B01J,C08F

Abstract:
A process for the polymerization of olefins, which comprises contacting under polymerization conditions olefin with a catalyst composition comprising the reaction product of:a) a spirocycle of the formula: including oligomers thereof,wherein each R1, R2, R3, R4, and R5 is independently hydrogen, hydrocarbyl, or a heteroatom-containing group; and any two or more R groups may be joined to form a ring;b) a complex of the formula [LmMXn]r wherein each L is a neutral ligand, M is selected from Groups 4, each X is an anionic group, m is an integer of 0 or greater, n is an integer of 0 or greater, and r is an integer of 1 or greater; and c) an activating cocatalyst.