Patent ID: 6632770
Filing Date: 2003-10-14
Classification: C08F

Abstract:
A catalyst system for the polymerization of olefin(s) comprising an activator composition having a siloxane moiety represented by the formulae:[Lâ€”H]+[MQn]âˆ’O(SiR2O)x[MQn]âˆ’[Lâ€”H]+or[Lâˆ’H]+[MQn]âˆ’O(SiR2O)xR wherein L is a neutral Lewis base; [Lâ€”H]+ is a Bronsted acid or Lewis acid; n is 3 or 4; x is a positive integer; [MQn]âˆ’ is a non-coordinating anion, wherein Q is independently selected from the group consisting of a hydride, a dialkylamido, a halide, an alkoxide, an aryloxide, a hydrocarbyl, a substituted hydrocarbyl, a halocarbyl, a substituted halocarbyl, a halosubstituted-hydrocarbyl radical and combinations thereof; M is an element selected from Group 13 of the Periodic Table of the Elements; and each R is independently selected from the group consisting of a hydrogen, a hydroxyl group, an alkyl, and combinations thereof.