Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymer of an ethylenically unsaturated reactant with a...
Patent
1985-10-02
1989-04-04
Anderson, Harold D.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymer of an ethylenically unsaturated reactant with a...
528271, 568342, C08G 6702
Patent
active
048188107
ABSTRACT:
A process for the preparation of polyketones is disclosed, the process being the polymerization of a mixture of CO and an alkenically unsaturated hydrocarbon in the presence of a Group-VIII-metal catalyst containing ligands, wherein hydrocarbon groups occur which are bound to an element from Group V a, characterized in that the catalyst used is a complex compound obtained by reaction of a palladium, cobalt or nickel compound, an anion of a carboxylic acid with a pKa lower than 2, and a bidentate ligand of the general formula R.sup.1 R.sup.2 --M--R--M--R.sup.3 R.sup.4, wherein M represents phosphorus, arsenic or antimony, R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are similar or dissimilar hydrocarbon groups, R is divalent organic bridging group not causing steric hindrance.
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Anderson Harold D.
Shell Oil Company
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