Manufacture of catalysts for polymerization of olefins
US4110248A · kind A · utility
12Cited by
7References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 1, 1977 |
| Grant date | Aug 29, 1978 |
| Priority date | — |
| Expiry date | Feb 1, 1997 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F10/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A catalyst for use in the polymerization of olefins and a process for its manufacture wherein an excess titanium tetrachloride is reduced by an organoaluminum reducing agent, with the ratio of moles of titanium tetrachloride to the number of gram equivalents of the organoaluminum compound being at least 1.8. The catalyst is prepared in the presence of an aliphatic ether to produce titanium trichloride having regularly-shaped granules and improved catalytic properties suitable for use with an organoaluminum co-catalyst in the polymerization of olefins.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.