VORBEREITUNG EINES GETRÄGERTEN KATALYSATORSYSTEMS ZUR POLYMERISATION VON OLEFINEN

摘要

The invention is directed to a process for the preparation of olefin polymerization catalyst compositions comprising a) combining nucleophilic group-containing particulate support material with an arylboron or arylaluminum Lewis acid compound in the presence of a Lewis base compound; b) contacting the product of a) with a trialkylaluminum compound before combining said product with a metal precursor compound capable of activation for olefin polymerization by said product a); and, c) combining the product of b) with said metal precursor compound. These catalyst compositions are suitable for addition reactions of ethylenically and acetylenically unsaturated monomers. Use of the invention catalysts to polymerize alpha -olefins is exemplified.