Polymerization method
US4478988A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 24, 1982 |
| Grant date | Oct 23, 1984 |
| Priority date | — |
| Expiry date | May 24, 2002 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F10/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A catalyst and method in which the catalyst is used in association with an aluminum cocatalyst in the polymerization and copolymerization of 1-olefins. The catalyst is prepared by reacting certain organic silicon compounds with silica, alumina or the like having surface hydroxyl groups, or a mixture thereof, in which the silicon compound reacts with these surface hydroxyl groups, followed by reacting the product of this with an organomagnesium compound and further reacting this product with an alcohol or reacting the product with an alcohol and then with an organomagnesium compound and then with a halide or alkoxide of titanium, vanadium, zirconium or mixtures of these.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.