Catalyst component comprising magnesium, titanium, a halogen and an electron donor, its preparation and use
US7026265B2 · kind B2 · utility
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37Claims
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Key dates
| Filing date | Oct 18, 2001 |
| Grant date | Apr 11, 2006 |
| Priority date | — |
| Expiry date | Nov 16, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F4/6546
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Process for the preparation of a particular olefin polymerisation catalyst component including magnesium dihalide, titanium tetrahalide and a carboxylic acid ester, in which the precursors of its constituents are reacted in solution from which the component is precipitated, this precipitation being accompanied by co-precipitation of one or more oligoesters of the carboxylic acid formed in a controlled manner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.