Ziegler-natta catalyst for polyolefins
US6930071B2 · kind B2 · utility
30Cited by
11References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 22, 2003 |
| Grant date | Aug 16, 2005 |
| Priority date | — |
| Expiry date | Sep 22, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F110/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A Ziegler-Natta type catalyst component can be produced by a process comprising contacting a magnesium dialkoxide compound with a halogenating agent to form a reaction product A, and contacting reaction product A with a first, second and third halogenating/titanating agents. Catalyst components, catalysts, catalyst systems, polyolefin, products made therewith, and methods of forming each are disclosed. The reaction products can be washed with a hydrocarbon solvent to reduce titanium species [Ti] content to less than about 100 mmol/L.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.