Patent ID: 7897706

Claim:
A process for polymerizing olefins comprising contacting, in a reactor: (a) ethylene and at least one comonomer selected from the group consisting of C4 to C8 alpha olefins; and (b) a supported, treated catalyst system that comprises: a first catalyst compound and a second catalyst compound supported on a common support, wherein the first catalyst compound is a non-metallocene catalyst component and the second catalyst compound is a metallocene catalyst component, and wherein the first catalyst compound and the second catalyst compound comprise Group 4 or 5 metals, and at least one compound that can be activated by methylalumoxane, wherein said compound is different from the first catalyst compound and the second catalyst compound and wherein said compound is a metallocene catalyst compound, a Group-15-component-containing compound, or a phenoxide catalyst compound; wherein the supported, treated catalyst system is produced by the process comprising: forming a supported bimetallic catalyst system comprising the first catalyst compound and the second catalyst compound; and contacting the supported bimetallic catalyst system with the at least one compound that can be activated by methylalumoxane.