Preparation of Supported Silyl-Capped Silica-Bound Anion Activators and Associated Catalysts
申请人:CASTY Gary L.
公开号:US20120178617A1
公开(公告)日:2012-07-12
A method for the preparation of olefin polymerization catalysts that are the reaction products of the catalytic reaction of surface hydroxyls of a support with a trialkyl silane to afford hydrogen and the corresponding surface bound alkyl silyl ether and at the same time with a strong Lewis acid which support is converted to a silica bound anion that in a second step is fully converted by reaction with QM
2
to the desired catalyst. Catalyst compositions are disclosed herein. Processes disclosed herein include processes for the polymerization of olefinically unsaturated monomers comprising contacting a plurality of one or more of the monomers with the catalyst.