Method for polymerizing .alpha.-olefin
US4324877A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 19, 1980 |
| Grant date | Apr 13, 1982 |
| Priority date | — |
| Expiry date | Nov 19, 2000 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F10/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
An .alpha.-olefin polymer having an excellent H.I. is produced with a high yield by bringing, in the presence of an organic acid ester, a feed containing at least one .alpha.-olefin, having 3 or more carbon atoms, into contact with a catalyst composed of: PA0 a solid catalytic ingredient which has been prepared in such a manner that an aluminosiloxy compound of the formula, ##STR1## wherein X.sup.1 represents a chlorine atom, a bromine atom or an iodine atom, is reacted with a Grignard compound of the formula R.sup.1 MgX.sup.2 [II] wherein R.sup.1 represents an alkyl radical having 1 to 8 carbon atoms and X.sup.2 represents a halogen atom, the resultant solid reaction product is brought into contact with a titanium tetrahalide, the resultant titanium-containing solid product is treated with an organic acid ester, and the treated solid product is brought into contact with a titanium tetrahalide; and PA0 a trialkyl aluminum.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.