Method of polymerizing alpha-olefins with boryl zirconocene organic 1,1-dimetallic compound catalysts
US5665834A · kind A · utility
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Key dates
| Filing date | Nov 17, 1995 |
| Grant date | Sep 9, 1997 |
| Priority date | — |
| Expiry date | Nov 17, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F4/65925
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Boron-zirconium 1,1,-dimetallic organic compounds useful in organic synthesis such as the preparation of alpha-borobromanes. The boron-zirconium compounds include boron and zirconiun, and in particular the synthesis, structure and reactivity of E-chlorobis(cyclopentadienyl)- [1-(4,4,5,5-tetramethyl-1,3,2-dioxaborolane-2-yl)-3,3-dimethylbutenyl]zirc onium (IV). The boron-zirconium 1,1-dimetallic compound is used as a polymerization catalyst to polymerize alpha-olefins such as styrene.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.