| CLASSIFICATION | CommPat. Market |
| MARKETER'S COUNTRY | USA |
| PATENT ASSIGNEE'S COUNTRY | USA |
| PRODUCER'S COUNTRY | USA |
| UPDATE | 03.00 |
| MARKETING BY | This data is not available for free |
| PATENT ASSIGNEE | This data is not available for free |
| PATENT CLAIMS |
Process of prepg supported olefin polymn catalyst - Heating methylaluminoxane soln in which the solvent is an aromatic hydrocarbon solvent at T > 35C for > 0.5 hour in an inert, dry atm; & - Combining heat-treated methylaluminoxane from (a), a ca talyst support, & a metallocene olefin polymn catalyst to form a supported olefin polymn catalyst, the methylalumino xane & catalyst support being combined at 25-250C & pre ssure 5-500 psig with the proviso that the time & the T used in the heating in (a) are such that the supported olefin polymn catalyst formed in (b) has compn provides, when used in forming a supported metallocene catalyst, a supported increased activity as compared to a supported metallocene catalyst produced in the same way from the same amounts of the same comp., except that heating pursuant to (a) is not used, the methylalu minoxane of said soln., having been produced before said heating in (a) by partial hydrolysis of Al(Me)3 in mixt consisting of (i) Al(Me)3 in organic solvent & (ii) free water |
| PATENT PHOTOCOPY | Available on request |
| PRODUCTION BY | This data is not available for free |
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