Binuclear metathesis polymerization catalyst system
US4918039A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 21, 1988 |
| Grant date | Apr 17, 1990 |
| Priority date | — |
| Expiry date | Sep 21, 2008 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J27/132
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A metathesis polymerization catalyst composition comprising a binuclear catalyst, wherein said binuclear catalyst is a mixture of at least two transition metal components, wherein a first transition metal component is a halide complex of tungsten, an oxyhalide complex of tungsten or a mixture thereof and a second transition metal component is a halide complex of a transition metal selected from the group consisting of high valent transition metals belonging to Groups IV or V of the Periodic Table, from about 1 to about 3 moles of phenolic compound per mole of tungsten component, activated by a metathesis catalyst activator and containing a rate moderator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.