Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
March 20, 2012
Patent Application Number
13094174
Date Filed
April 26, 2011
Patent 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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