Highly active supported catalyst compositions
AssigneeExxonMobil Chemical Patents Inc.
InventorAnthony N. Speca
Life of this patent
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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.
Claims16
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.
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.
Dependencies are inferred from the claim text.