Support adjuvant for improved vanadium polymerization catalyst
US5064796A · kind A · utility
32Cited by
34References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 7, 1991 |
| Grant date | Nov 12, 1991 |
| Priority date | — |
| Expiry date | Jan 7, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F10/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A vanadium catalyst component for the polymerization of 1-olefins and a process for making said catalyst component are disclosed. The catalyst component is prepared by fluoriding a support comprising silica. Use of the catalyst component provides a catalyst with increased activity, increased response to hydrogen for chain termination, increased response to comonomer for resin density reduction, and allows the molecular weight distribution of the polymers to be independently controlled by controlling the amount of fluorination and the fluorination temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.