Mixed catalyst compounds, catalyst systems and their use in a polymerization process
AssigneeUnivation Technologies, LLC
InventorsDonald R. Loveday, David H. McConville
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Abstract
The present invention relates to mixed catalyst compositions of a Group 15 containing hafnium catalyst compound and a bulky ligand metallocene-type catalyst compound, a unsupported and supported catalyst systems thereof and to a process for polymerizing olefin(s) utilizing them.
Claims15
A process for polymerizing olefin(s) in the presence of a catalyst system comprising a Group 15 containing bidentate or tridentate ligated hafnium catalyst compound, wherein the hafnium metal atom is bound to at least one leaving group and to at least two Group 15 atoms, and wherein at least one of the at least two Group 15 atoms is bound to a Group 15 or 16 atom through a bridging group;
- and a bulky ligand metallocene catalyst compound.
Dependencies are inferred from the claim text.