Preparing poly(aryl ethers) using alkaline earth metal carbonate

Details Preparing poly(aryl ethers) using alkaline earth metal carbonate Preparing poly(aryl ethers) using alkaline earth metal carbonate

1987-04-13

1988-09-27

Kight, John

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528212, 528214, 528217, C08G 6540, C08G 6538, C08G 802

Patent

active

047743140

ABSTRACT:
Described herein is an improved process for preparing poly(aryl ethers) and poly(aryl ether ketones) by the reaction of a mixture of at least one bisphenol and at least one dihalobenzenoid compound, and/or a halophenol, in which the improvement comprises providing to the reaction medium, a combination of sodium or an alkaline earth metal carbonate and/or bicarbonate and a potassium, rubidium, or cesium salt of an organic acid or combinations of various organic salts thereof. The process yields high molecular weight, linear, poly(aryl ethers) and poly(aryl ether ketones) possessing excellent thermal stability and physical properties.

REFERENCES:
patent: 4636557 (1987-01-01), Deckers
patent: 4638044 (1987-01-01), Kelsey

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