Method for preparing a magnesium halide support for catalysts
US4350612A · kind A · utility
4Cited by
6References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 13, 1981 |
| Grant date | Sep 21, 1982 |
| Priority date | — |
| Expiry date | Jan 13, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F10/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A process for preparing an effective support for the titanium halide component of a coordinate complex catalyst for the polymerization of alpha-olefins comprises the steps of: PA0 (a) intimately contacting a magnesium or manganese chloride or bromide with a drying agent at an elevated temperature, PA0 (b) milling the magnesium or manganese chloride or bromide so as to activate its surface; and PA0 (c) repeat contacting step (a) and milling step (b) for two or more cycles, whereby the effective support is produced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.