Polymerization of alpha-olefins with cationic metallocene catalysts based on organoaluminum anions
US5807939A · kind A · utility
32Cited by
6References
4Claims
0Family size
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Key dates
| Filing date | Jun 2, 1995 |
| Grant date | Sep 15, 1998 |
| Priority date | — |
| Expiry date | Jun 2, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F4/65927
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Metallocene catalysts and their preparation and use in the polymerization of olefins. Specifically, the catalysts and processes relate to polymerization of olefins in which an aluminum ionizing agent containing a triphenylcarbenium ion is utilized in preparing the catalyst. The preparation of an olefin polymerization catalyst comprising a metallocene-type catalyst and triphenylcarbenium tetrakis(pentafluorophenyl)aluminate is disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.