Process for preparing polyketones with aprotic polar solvent com

Details Process for preparing polyketones with aprotic polar solvent com Process for preparing polyketones with aprotic polar solvent com

1991-09-19

1993-01-05

Anderson, Harold D.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymer of an ethylenically unsaturated reactant with a...

C08G 6702

Patent

active

051771861

ABSTRACT:
A process for preparing terpolymer polyketones comprises reacting at least two olefins with carbon monoxide at elevated temperature and pressure in the presence of a catalyst prepared from (a) a source of palladium, (b) a source of an anion which either does not coordinate with palladium or is less strongly coordinating to palladium than both carbon monoxide and the olefin(s) used and (c) a bisphosphine of formula (R.sup.1).sub.2 P--R--P(R.sup.1).sub.2 wherein R.sup.1 is an optionally polar substituted aromatic hydrocarbyl group and R is a divalent organic bridging group of formula --(CH.sub.2).sub.n --where n=2 to 8 and (d) a 1,4 quinone. The process is characterized by being carried out in a solvent comprising a mixture of an aprotic polar solvent and from 0.0001 to 0.5% by weight water. The particular solvent system used is especially useful for preparing terpolymer polyketones of high molecular weight.

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