Retreating comminuted olefin polymerization catalyst with a titanium (IV) compound, a chlorocarbon and an ester
US4431572A · kind A · utility
7Cited by
8References
43Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 14, 1982 |
| Grant date | Feb 14, 1984 |
| Priority date | — |
| Expiry date | May 14, 2002 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F10/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A comminuted, supported polymerization catalyst for alpha-olefins comprises (A) an organoaluminum compound and (B) a solid titanium-containing component formed by (1) comminuting a solid reaction product comprising (a) at least one halogen-containing compound of titanium (IV); (b) at least one electron donor; and (c) at least one hydrocarbon-insoluble magnesium-containing compound; and (2) retreating such comminuted product with (a) at least one halogen-containing compound of titanium (IV); (b) at least one chlorocarbon; and (c) at least one organic acid ester.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.