Components of catalysts for the polymerization of olefins
US4495338A · kind A · utility
109Cited by
9References
57Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 24, 1980 |
| Grant date | Jan 22, 1985 |
| Priority date | — |
| Expiry date | Sep 24, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S526/906
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Catalysts useful in the polymerization of olefins, more particularly of ethylene and mixtures thereof with alpha-olefins and/or diolefins, are disclosed. The new catalysts are obtained by mixing a halide of titanium or vanadium in which the metal has a valency lower than 4, with a support comprising an anhydrous magnesium or zinc halide in an active form under particular conditions, and then activating the resulting product with a hydride or organometallic compound of a metal belonging to Groups I to III, inclusive, of the Mendelyeev Periodic System.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.