Metallocene catalyst and catalyst system for producing polypropylene blend of iso and syndio-tactic polypropylene
US6362125B1 · kind B1 · utility
13Cited by
9References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 22, 2000 |
| Grant date | Mar 26, 2002 |
| Priority date | — |
| Expiry date | May 22, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S526/943
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A polyolefin metallocene catalyst which includes two metallocene components, a stereorigid isospecific metallocene catalyst component and a stereorigid syndiospecific metallocene catalyst component, both of which are supported upon the same support. A method of forming a catalyst system includes contacting the above catalyst with a cocatalyst or Lewis acid. A method of polymerization includes contacting an olefin with the catalyst system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.