Preparation of addition polymerization catalysts via Lewis acid mitigated metal center oxidation
US5347024A · kind A · utility
44Cited by
1References
9Claims
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Key dates
| Filing date | Mar 19, 1993 |
| Grant date | Sep 13, 1994 |
| Priority date | — |
| Expiry date | Mar 19, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F4/6592
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Addition polymerization catalysts comprising a derivative of a titanium or zirconium in the +4 oxidation state prepared by metal center oxidation and cation complex formation of a reduced metal precursor complex via electron transfer in a single step by use of a neutral organic oxidant, optionally in the presence of a Lewis acid mitigator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.