Catalysts for polymerizing olefins
US4199474A · kind A · utility
2Cited by
6References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 9, 1978 |
| Grant date | Apr 22, 1980 |
| Priority date | — |
| Expiry date | Feb 9, 1998 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F10/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A process for producing titanium-trichloride based catalyst comprising reducing titanium tetrachloride in excess with an organo-aluminum compound in the presence of 2 to 5 mols per mol of organo-aluminum of one or more aliphatic ethers having the formula R'--O--R" in which R' and R" are alkyl groups containing 1 to 5 carbon atoms and maturing the formed precipitate at a temperature within the range of 80.degree.-115.degree. C., said catalyst being useful with an organo-metallic co-catalyst in the polymerization of olefins.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.