Catalyst component for alpha olefine-polymerizing catalysts and procedure for manufacturing the same
US4780439A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 1, 1987 |
| Grant date | Oct 25, 1988 |
| Priority date | — |
| Expiry date | Apr 1, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F10/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A catalyst component for alpha olefine-polymerizing catalysts which comprise an organoaluminum compound, an external electron donor, and a solid catalyst compound obtained when a solid carrier component containing magnesium has reacted with a titanium halide compound, in addition to a procedure for manufacturing the same. The catalyst component is produced by reacting a solid carrier component with a titanium halide compound with or without the presence of an internal electron donor. The solid carrier component is prepared by PA0 (a) dissolving, in hydrochloric acid, a magnesium compound selected from the group consisting of magnesium hydroxide, magnesium carbonate, magnesium oxide, and natural and/or synthetic minerals containing the same, PA0 (b) evaporating the solution until dry, PA0 (c) heating the obtained salt mixture at 130.degree. to 150.degree. C., PA0 (d) dissolving the magnesium component in ethanol, PA0 (e) drying the ethanol solution of the magnesium component with the aid of periodic azeotropic distillation, and PA0 (f) precipitating the solid carrier component from the ethanol solution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.