Removal of catalyst residues from carbon monoxide/olefin polymer with phosphine
AssigneeShell Oil Company
InventorsJohannes A. M. Van Broekhoven, Michael J. Doyle
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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.
Claims21
A process for reducing catalyst residues from a Group VIII metal compound catalyst-containing polymer of carbon monoxide and ethylene, the process comprising contacting the polymers with an effective amount for reducing catalyst residues of a phosphine having the general formula ##STR9## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 represent hydrocarbon groups or such groups containing polar or non-polar substituents and R represents a bivalent organic bridging group containing at least two carbon atoms in the bridge.
Dependencies are inferred from the claim text.