Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Plural component system comprising a - group i to iv metal...
Reexamination Certificate
2007-01-16
2007-01-16
Lorengo, J. A. (Department: 1755)
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Plural component system comprising a - group i to iv metal...
C526S114000, C525S054000
Reexamination Certificate
active
10980996
ABSTRACT:
This invention relates to the field of olefin polymerization catalyst compositions, and methods for the polymerization and copolymerization of olefins, including polymerization methods using a supported catalyst composition. In one aspect, the present invention encompasses a catalyst composition comprising the contact product of at least one metallocene compound, at least one organochromium compound, at least one chemically-treated solid oxide, and at least one organoaluminum compound.
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Benham Elizabeth A.
Collins Kathy S.
Hawley Gil R.
Jensen Michael D.
Martin Joel L.
Bolden Elizabeth A.
Chevron Phillips Chemical Company, LLP
Lorengo J. A.
Merchant & Gould
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