Solid catalyst component for the polymerization of olefins and an olefin polymerization catalyst
US4970186A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 23, 1988 |
| Grant date | Nov 13, 1990 |
| Priority date | — |
| Expiry date | Dec 23, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S526/903
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A solid catalyst component prepared by admixing and reacting, with a reaction product which has been obtained by suspending diethoxymagnesium in an alkylbenzene and bringing the suspension into contact with titanium tetrachloride in an amount less than 1 in terms of volume ratio to the alkylbenzene, a phthaloyl dichloride at a temperature within the range between 80.degree. C. and 125.degree. C., washing the resultant solid substance with an alkylbenzene, and reacting the solid substance in the presence of an alkylbenzene with titanium tetrachloride in an amount less than 1 in terms of volume ratio to the alkylbenzene as well as an olefin polymerization catalyst which comprises (A) the above specified solid catalyst component, (B) a silicon compound of the general formula: SiR.sub.m (OR').sub.4-m wherein R is a group selected from an alkyl group, a cycloalkyl group, an aryl group and vinyl group, R' is an alkyl group and m is zero or an integer of 1-3, with the proviso that when m is 2 or 3, plural R groups may be identical or different, that when m is zero or 1, plural R' groups may be identical or different and/or that when R is an alkyl group, R may be identical with or differen…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.