Catalyst system for high activity and stereoselectivity in the homopolymerization and copolymerization of olefins
US7214749B2 · kind B2 · utility
1Cited by
9References
32Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 7, 2005 |
| Grant date | May 8, 2007 |
| Priority date | — |
| Expiry date | Jul 7, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S526/943
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention is directed to a novel composition, and to a method of making the composition, the composition being useful in catalyst systems for the homopolymerization and/or copolymerization of olefins, wherein such catalyst systems display a higher level of activity and stereoselectivity than previously reported. The present invention is also directed to novel polymeric compositions made with such catalyst systems, such as a novel syndiotactic polypropylene that melts at temperatures higher than previously reported.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.