Amido transition metal compound and a catalyst system for the production of isotatic polypropylene
US5318935A · kind A · utility
167Cited by
9References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 30, 1992 |
| Grant date | Jun 7, 1994 |
| Priority date | — |
| Expiry date | Jul 30, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S526/943
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Certain bridged and unbridged amido transition metal compounds of the Group IV-B metals are disclosed. These compounds may be used in a catalyst system comprising the amido transition metal compound and an alumoxane. Also disclosed is a process using the catalyst system for the production of high molecular weight polyolefins and, particularly, high molecular weight isotactic polypropylene.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.