Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Jerry T. Lanier0
Kumudini C. Jayaratne0
Matthew G. Thorn0
Max P. McDaniel0
Michael D. Jensen0
Qing Yang0
Tony R. Crain0
Joel L. Martin0
Date of Patent
June 14, 2011
0Patent Application Number
125718240
Date Filed
October 1, 2009
0Patent Citations Received
Patent Primary Examiner
Patent abstract
This invention relates to catalyst compositions, methods, and polymers encompassing at least one first Group 4 metallocene compound comprising bridging η5-cyclopentadienyl-type ligands, in combination with at least one second Group 4 metallocene with non-bridging η5-cyclopentadienyl-type ligands, typically in combination with at least one cocatalyst, and at least one activator. The compositions and methods disclosed herein provide ethylene polymers with a bimodal molecular weight distribution.
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