Process for producing aromatic polyesters

Details Process for producing aromatic polyesters Process for producing aromatic polyesters

1989-06-23

1990-06-26

Anderson, Harold D.

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528176, 528271, C08G 6318

Patent

active

049373196

ABSTRACT:
A process is described for producing shapable aromatic polyesters derived from bisphenol A and a dicarboxylic acid comprising isophthalic acid, terephthalic acid, or a mixture of the two, comprising forming a mixed anhydride of said dicarboxylic acid and acetic acid, and subsequently reacting said mixed anhydride with bisphenol A while drawing off acetic acid by-product to obtain said aromatic polyester.

REFERENCES:
patent: 4281099 (1981-07-01), Maresca
patent: 4296232 (1981-10-01), Maresca et al.
patent: 4414381 (1983-11-01), Griffen et al.
patent: 4680372 (1987-07-01), Rosenfield

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