Removal of catalyst residues from carbon monoxide/olefin polymer with phosphine
US4786716A · kind A · utility
5Cited by
5References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 26, 1986 |
| Grant date | Nov 22, 1988 |
| Priority date | — |
| Expiry date | Nov 26, 2006 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F6/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The invention is a process for reducing catalyst residues from a Group VIII metal compound-containing polymer of CO, ethylene and optionally at least one of olefinically unsaturated hydrocarbon. The process comprises contacting the polymer with an effective amount of a bidentate phosphine ligand having the general formula ##STR1## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 represent hydrocarbon groups which may contain polar or non-polar substituents and R represents a bivalent organic bridging group containing at least two carbon atoms in the bridge.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.