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US 6,605,563 B1Granted
Catalyst system and its use in olefin polymerization
AssigneeUnivation Technologies, LLC
InventorsSun-Chueh Kao, Jaimes Sher, Frederick J. Karol
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Abstract
A polymerization catalyst system and a method for preparing the catalyst system is disclosed. The catalyst system includes a bulky ligand metallocene catalyst compound, preferably containing a single cyclopentadienyl or substituted cyclopentadienyl-type ring system, a Group 13 element containing first modifier, and a cycloalkadiene second modifier. The present invention also provides a process for polymerizing olefin(s) utilizing the catalyst systems described herein.
Claims19
A catalyst system for polymerizing olefin(s) comprising
- a) a bulky ligand metallocene catalyst compound;
- b) a first modifier comprising a Group 13 element containing compound;
- c) a second modifier comprising a cycloalkyldiene;
- and
- d) an alumoxane.
2 more elements
Dependencies are inferred from the claim text.