Silicon-bridged transition metal compounds
US5017714A · kind A · utility
380Cited by
6References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 7, 1989 |
| Grant date | May 21, 1991 |
| Priority date | — |
| Expiry date | Sep 7, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S526/943
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Silicon-bridged transition metal compounds and their use as .alpha.-olefin polymerization catalysts are disclosed. A chiral silicon-bridged metallocene catalyst polymerizes .alpha.-olefins to high isotacity with a minimum of inversions at high rates of catalyst activity. The catalyst is easily made in high yields and readily separated from atactic meso forms.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.