Components and catalysts for the polymerization of olefins
US7316987B2 · kind B2 · utility
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19Claims
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Key dates
| Filing date | Jun 24, 2002 |
| Grant date | Jan 8, 2008 |
| Priority date | — |
| Expiry date | Jan 7, 2024 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F10/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Catalyst component for the polymerization of olefins obtainable by contacting: (i) a magnesium halide, or a suitable precursor; (ii) a monofunctional electron donor compound (MD) selected from ethers, esters, amines or ketones, used in such amounts to have Mg/MD molar ratios of at least 50; (iii) a titanium compound of formula Ti(ORI)n-yXy, where n is the valence of titanium, y is a number between 1 and n, X is halogen, and RI is a C1-C15 hydrocarbon group and, optionally, (iv) an electron donor compound (ED). The said catalyst component shows improved activity in the polymerization of olefins.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.