Method for making aromatic cyclic polyformals

Details Method for making aromatic cyclic polyformals Method for making aromatic cyclic polyformals

1978-05-15

1979-01-23

Lee, Lester L.

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

260338, 528493, C08G 6540

Patent

active

041360877

ABSTRACT:
A method is provided for making aromatic cyclic polyformals by effecting reaction between a methylene halide and an anhydrous bisphenol dianion, followed by a precipitation and an extraction of the resulting aromatic polyformal reaction product. The aromatic cyclic polyformals can be used as plasticizers for organic polymers for making wire coating formulations.

REFERENCES:
patent: 3069386 (1962-12-01), Barclay, Jr.

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