Method for preparing aromatic polyether polymers

Details Method for preparing aromatic polyether polymers Method for preparing aromatic polyether polymers

1997-02-13

1998-11-03

Truong, Duc

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528126, 528170, 528171, 528173, 528175, 528183, 528219, 528128, 546256, 546304, C08G 802, C08G 1400, C08G 6500, C08G 7500

Patent

active

058309748

ABSTRACT:
Aromatic polyether polymers, illustrated by polyethersulfones, polyetherketones and polyetherimides, are prepared by a phase transfer catalyzed reaction between a salt of at least one dihydroxyaromatic compound and at least one substituted aromatic compound such as bis(4-chlorophenyl) sulfone, bis(4-chlorophenyl) ketone or anisole as diluent and in the presence of a phase transfer catalyst, preferably a hexaalkylguanidinium salt.

REFERENCES:
patent: 5229482 (1993-07-01), Brunelle

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