Process for activating a metallocene catalyst supported on silica
US6239058A · kind A · utility
10Cited by
22References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 28, 1998 |
| Grant date | May 29, 2001 |
| Priority date | — |
| Expiry date | May 28, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S526/943
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention provides a process for commercial production of syndiotactic polyolefins using a metallocene catalyst supported on silica treated with MAO. The invention includes contacting the supported metallocene catalyst with a trialkylaluminum and aging the catalyst 12 to 24 hours prior to polymerization.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.