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US 6,551,957 B1Granted
Catalyst composition and methods for its preparation and use in a polymerization process
AssigneeUnivation Technologies, LLC
InventorTimothy T. Wenzel
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Abstract
The present invention relates to a catalyst composition and a method for making the catalyst composition of a polymerization catalyst and a carbonyl compound. The invention is also directed to the use of the catalyst composition in the polymerization of olefin(s). In particular, the polymerization catalyst system is supported on a carrier. More particularly, the polymerization catalyst comprises a bulky ligand metallocene-type catalyst system.
Claims9
A method of making a catalyst composition, the method comprising the steps of combining:
- (a) a polymerization catalyst;
- and
- (b) a carbonyl compound;
- wherein the carbonyl compound is represented by the formula:
- R(C═O)nR′
- wherein n is 2, and R and R′ can be the same or different and have up to 100 non-hydrogen atoms.
3 more elements
A method of making a catalyst composition, the method comprising the steps of combining:
- (a) a polymerization catalyst;
- and
- (b) a carbonyl compound;
- wherein the carbonyl compound is represented by the formula:
- R(C═O)nR′
- wherein n is 1, and R and R′ are cycloaliphatic or aromatic groups.
3 more elements
Dependencies are inferred from the claim text.