Process for producing an olefin copolymer rubber
US4695614A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 7, 1986 |
| Grant date | Sep 22, 1987 |
| Priority date | — |
| Expiry date | Apr 7, 2006 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F10/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A process for producing an olefin copolymer rubber by slurry-polymerizing ethylene, at least one .alpha.-olefin and at least one non-conjugated diene in a poor solvent for the copolymer in the presence of a catalyst consisting of an organometallic compound (the first component) and a transition metal compound (the second component), characterized by using, an organoaluminum compound as the first component of the catalyst, and using, as the second component, a modified vanadium compound obtained by contacting a vanadium compound with at least one compound selected from the group consisting of the compounds represented by the following formulas: ##STR1## wherein R is a hydrocarbon group of 1 to 20 carbon atoms and X.sub.1, X.sub.2 and X.sub.3 are independently halogen atoms or alkoxyl groups. This process can prevent a gel from being formed during polymerization.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.