Catalyst for polymerizing .alpha.-olefins
US4282114A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 28, 1980 |
| Grant date | Aug 4, 1981 |
| Priority date | — |
| Expiry date | Jan 28, 2000 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F4/022
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Disclosed is a catalyst for polymerizing .alpha.-olefins which comprises PA1 (A) a composition obtained by co-comminuting PA2 (a) a magnesium halide, PA2 (b) an organic acid ester, PA2 (c) a halogenated aliphatic or alicyclic hydrocarbon, PA2 (d) at least one ingredient selected from the group consisting of aliphatic hydrocarbons, alicyclic hydrocarbons, aromatic hydrocarbons, halogenated aromatic hydrocarbons, liquid propylene oligomers and aromatic ethers, and PA2 (e) an aluminum halide optionally added thereto and then heat-treating the resulting mixture together with titanium tetrachloride; PA1 (B) an organic aluminum compound; and PA1 (C) an organic acid ester or a complex thereof with an aluminum halide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.