Olefine polymerization catalyst
US4252670A · kind A · utility
36Cited by
5References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 26, 1979 |
| Grant date | Feb 24, 1981 |
| Priority date | — |
| Expiry date | Mar 26, 1999 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F110/06
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A component of a polymerization catalyst is prepared by reacting an organo-magnesium compound, or a complex with an organo-aluminium compound, with an halogenating agent such as silicon tetrachloride or hydrogen chloride, and then reacting the product with a Lewis Base compound, particularly an ester and finally with titanium tetrachloride. The product obtained is combined with an organo-aluminium compound preferably together with a Lewis Base and used to polymerize an olefine monomer. The catalyst has a high activity and is stereospecific.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.