Highly active supported catalyst compositions
First Claim
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1. A supported catalyst composition comprising one or more fluorided supports, one or more metallocenes, and one or more activators selected from highly fluorinated tris-arylboranes, characterized in that the degree of fluoridation allows association between the fluorided supports and one or more activators such that when contacted with one or more metallocenes and α
- -olefin monomers, the supported catalyst composition exhibits a productivity of from 919 to 6012 g polymer/g metallocene·
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Abstract
This invention relates to metallocene catalyst compositions which are highly active for the polymerization of olefins, particularly prochiral α-olefins. The catalyst compositions contain at least one metallocene, and least one activator and a support that has been fluorided using a fluoride containing compound.
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Citations
16 Claims
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1. A supported catalyst composition comprising one or more fluorided supports, one or more metallocenes, and one or more activators selected from highly fluorinated tris-arylboranes, characterized in that the degree of fluoridation allows association between the fluorided supports and one or more activators such that when contacted with one or more metallocenes and α
- -olefin monomers, the supported catalyst composition exhibits a productivity of from 919 to 6012 g polymer/g metallocene·
hr. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
- -olefin monomers, the supported catalyst composition exhibits a productivity of from 919 to 6012 g polymer/g metallocene·
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16. A supported catalyst composition consisting essentially of one or more fluorided supports, one or more metallocenes, and one or more activators selected from highly fluorinated tris-arylboranes.
Specification