Catalyst component and catalyst for olefin polymerization as well as use thereof
US7332455B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Sep 16, 2004 |
| Grant date | Feb 19, 2008 |
| Priority date | — |
| Expiry date | Dec 20, 2024 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F2410/06
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to a catalyst component and a catalyst for olefin polymerization. The catalyst component utilizes magnesium halide and silica as composite support, and the particle morphology thereof can be improved by regulating the ratio of magnesium halide to silica. Further, the purpose of stabilizing the rate of catalytic polymerization reaction and improving the particle morphology of polymer so as to meet the requirements on catalyst performance of various polymerization processes can be achieved through the combination of the supports of the catalyst. In the meantime, when used in the polymerization of propylene, the catalyst of the present invention exhibits a relatively high polymerization activity and high stereospecificity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.