Silylium cationic polymerization activators for metallocene complexes
US5625087A · kind A · utility
115Cited by
6References
3Claims
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Key dates
| Filing date | Sep 12, 1994 |
| Grant date | Apr 29, 1997 |
| Priority date | — |
| Expiry date | Sep 12, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F4/6592
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Catalyst systems useful in addition polymerization reactions comprising a Group 4 metal complex and a silylium salt activating cocatalyst are prepared by contacting the metal complex with a silylium salt of a compatible, non-coordinating anion, optionally the silylium salt is prepared by electrochemical oxidation and splitting of the corresponding disilane compound.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.