Claims
- 1. A method for producing a supported catalyst system, said method comprising the steps of:
- (1) contacting a porous carrier with at least one metallocene; and
- (2) adding alumoxane that, after its initial formation, has been hydrolyzed with a hydrolyzing agent without the prior addition of alkylaluminum.
- 2. The method of claim 1 wherein the alumoxane has been hydrolyzed in an amount such that the following equation is satisfied:
- HA/OM is equal to about 1.5 (A-0.08)
- wherein A is the molar ratio of alkylaluminum from which the alumoxane is initially formed to the total metal content of the alumoxane initially formed which would include unreacted alkylaluminum; HA is the number of moles of hydrolyzing agent and OM is the number of moles of alkylaluminum remaining after initial formation of alumoxane.
- 3. The method of claim 1 wherein the alumoxane is methylalumoxane.
- 4. The method of claim 1 wherein the hydrolyzing agent is water.
Parent Case Info
This is a continuation of application Ser. No. 08/433,768 filed on May 3, 1995 now abandoned which is R62 continuation of Ser. No. 08/170,108 filed Dec. 20, 1993 now abandoned.
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4874734 |
Kioka et al. |
Oct 1989 |
|
4960878 |
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Foreign Referenced Citations (1)
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Continuations (2)
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Number |
Date |
Country |
Parent |
433768 |
May 1995 |
|
Parent |
170108 |
Dec 1993 |
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