Sold catalyst component for the polymerization of olefins and an olefin polymerization catalyst
US5130284A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 14, 1990 |
| Grant date | Jul 14, 1992 |
| Priority date | — |
| Expiry date | Sep 14, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F10/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A solid catalyst component prepared under specific conditions by reacting with a reaction product which has been obtained by suspending diethoxymagnesium in an alkylbenzene and bringing the suspension into contact with titanium tetrachloride, phthaloyl dichloride at 80.degree.-125.degree. C., washing the resultant solid material with an alkylbenzene, reacting the solid material in the presence of an alkylbenzene with titanium tetrachloride to form a solid substance, and repeating the process of the following steps (1), (2), (3) and (4) 2-4 times for the solid substance: PA1 (1) washing the solid substance with an alkylbenzene, PA1 (2) suspending the solid substance in an alkylbenzene, PA1 (3) bringing the resultant suspension into contact with the titanium tetrachloride, and PA1 (4) eliminating a liquid substance from the reaction mixture as far as possible, as well as an olefin polymerization catalyst which comprises (A) the above specified solid catalyst component, (B) a specific silicon compound and (C) a specific organoaluminum compound. This catalyst exhibits, as compared with the existing olefin polymerization catalysts, an extremely high level of catalytic performance in pol…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.