Polymerization catalyst systems, their production and use
AssigneeExxon Chemical Patents Inc.
InventorMoses O. Jejelowo
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Abstract
This invention is generally directed toward a catalyst system useful for polymerizing olefins. The catalyst system of this invention comprises a supported bulky ligand transition metal compound and a separately supported cocatalyst or activator for the compound.
Claims13
A process for polymerizing olefins alone or in combination with one or more other olefins, said process comprising polymerizing in the presence of a catalyst system comprising:
- a) at least one first component consisting essentially of at least one first carrier and at least one metallocene;
- and separately
- b) at least one second component consisting essentially of at least one second carrier and at least one activator for said metallocene;
- wherein said first component is free from an activator and said second component is free from a metallocene.
A process for polymerization olefins alone or in combination with one or more other olefins in a reactor, said process comprising polymerization in the presence of a catalyst system which is introduced into said reactor, said catalyst system comprising:
- a) at least one first component consisting essentially of a majority of at least one first carrier and at least one metallocene;
- and separately
- b) at least one second component consisting essentially of a majority of at least one second carrier and at least one cocatalyst for said metallocene.
A process for polymerization olefin(s) in the presence of a catalyst system comprising a supported metallocene free of an activator and a separately supported activator free of a metallocene.
Dependencies are inferred from the claim text.