Process for the preparation of a solid catalyst component suitable for the polymerization of olefins which includes at least two additions of an electron donor
US5723400A · kind A · utility
26Cited by
7References
18Claims
0Family size
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Key dates
| Filing date | Feb 20, 1996 |
| Grant date | Mar 3, 1998 |
| Priority date | — |
| Expiry date | Feb 20, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F10/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Process for the preparation of a solid catalyst component for olefins polymerization including (1) a magnesium halide in active form, (2) a titanium compound, and (3) an electron-donor compound selected from particular 1,3-diethers, the process being carried out by reaction between the compounds from (1) to (3), and including at least two additions of electron-donor (3) in the following order: PA1 a) one addition prior to or during a reaction with the titanium compound or with a halogenated compound, and then PA1 b) one addition prior to or during a further reaction with the titanium compound.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.