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US 10,947,329 B2Granted
Catalyst systems and processes for using the same
AssigneeUnivation Technologies, LLC
InventorsChing-Tai Lue, Phillip T. Matsunaga, Donna J. Crowther
Life of this patent
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Abstract
A catalyst system including two or more metallocene catalysts and processes for using the same to produce polyolefin polymer compositions are provided. The polyolefin polymer compositions have a good balance of a melt index ratio and normalized melt strength.
Claims9
A catalyst system comprising the product of the combination of:
- a) two or more metallocene catalysts
- including a first metallocene catalyst represented by the formula:
- and a second metallocene catalyst represented by the formula:
- wherein a molar ratio of the second metallocene to the first metallocene is from 2:1 to 5.7:1;
- b) at least one activator;
- and
- at least one support, wherein the two or more metallocene catalysts are co-supported.
4 more elements
Dependencies are inferred from the claim text.