Claims
- 1. 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, said catalyst system comprising at least one metallocene catalyst component and at least one alkylalumoxane activator that has been in combination with an inorganic oxide support material and aged for 300 hours or more.
- 2. The process of claim 1 wherein the olefins are alpha-olefins having from 2 to 6 carbon atoms.
- 3. The process of claim 1 wherein the aged activator is methylalumoxane.
- 4. The process of claim 1 wherein the metallocene catalyst component is added to the reactor separately from the aged activator.
- 5. The process of claim 1 wherein the metallocene catalyst component is supported on the support.
- 6. The process of claim 1 wherein the metallocene catalyst component and the aged activator are introduced into the reactor in liquid form.
- 7. The process of claim 1 wherein the activator is aged for more than 672 hours.
- 8. The process of claim 1 wherein the activator is aged for more than 1000 hours.
- 9. The process of claim 1 wherein the support material comprises silica.
- 10. The process of claim 1 wherein the activator is initially formed in situ.
Parent Case Info
This is a divisional of application Ser. No. 08/271,598, filed Jul. 7, 1994, now U.S. Pat. No. 5,468,702.
US Referenced Citations (5)
Divisions (1)
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Number |
Date |
Country |
Parent |
271598 |
Jul 1994 |
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