New supported polymerization catalyst
First Claim
1. An olefin polymerization supported catalyst comprising a supported reaction product obtained by reacting at least one metallocene of a metal of Group IVB, at least one non-metallocene transition metal compound of a metal of Group IVB, VB, and VIB and an alumoxane in the presence of a support material consisting essentially of silica, alumina or silica-alumina.
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Abstract
An olefin polymerization supported catalyst comprising the supported reaction product of at least one metallocene of a metal of Group IVB, VB, and VIB of the Periodic Table, a non-metallocene transition metal containing compound of a Group IBV, VB, or VIB metal and an alumoxane, said reaction product formed in the presence of the support. The supported product is highly useful for the polymerization of olefins especially ethylene and especially for the copolymerization of ethylene and other mono and diolefins.
91 Citations
12 Claims
- 1. An olefin polymerization supported catalyst comprising a supported reaction product obtained by reacting at least one metallocene of a metal of Group IVB, at least one non-metallocene transition metal compound of a metal of Group IVB, VB, and VIB and an alumoxane in the presence of a support material consisting essentially of silica, alumina or silica-alumina.
- 11. A method for preparing an olefin polymerization supported catalyst comprising the supported reaction product of at least one metallocene of a metal of Group IVB, a non-metallocene compound of a metal of Group IVB, VB, and VIB, and an alumoxane, said method comprising adding to a slurry of a support material consisting essentially of silica, alumina or silica-alumina in an inert hydrocarbon solvent, an alumoxane in an inert hydrocarbon solvent, at least one metallocene, and at least one non-metallocene transition metal compound.
Specification