Supported cobalt catalyst, production thereof and use thereof for the polymerization of unsaturated compounds
US6093674A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 11, 1998 |
| Grant date | Jul 25, 2000 |
| Priority date | — |
| Expiry date | Aug 11, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F36/04
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to a supported cobalt catalyst consisting of PA1 (a) cobalt compounds, PA1 (b) organoaluminium compounds, PA1 (c) water or OH-acidic compounds, PA1 (d) inorganic or polymeric organic support materials and PA1 (e) modifiers selected from the group comprising tertiary phosphines, to the production thereof and to the use thereof for the polymerization of unsaturated compounds, in particular of conjugated dienes, in the gas phase. With the assistance of the catalysts according to the invention, it is possible to achieve gas phase polymerization of conjugated dienes with an elevated content of lateral double bonds in the polymers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.