Patent ID: 7169864

Claim:
A process for the preparation of a catalyst system, comprising the steps of: a) combining a support material with a first composition, the first composition comprising a first portion of at least one aluminoxane or mixtures thereof in a first solvent, wherein the first composition contains at least 5 mmole of the aluminoxane per gram of the support material; b) heating the combined support material with the first composition to a temperature of from at least 30° C. to about 200° C. to provide an aluminoxane loaded support; and, c) contacting the aluminoxane loaded support with a second composition, the second composition comprising at least one metallocene compound, a second solvent, and a cocatalyst, wherein the cocatalyst includes a second portion of at least one aluminoxane, alone or in combination with an ionic compound and/or a Lewis acid.