Liquid crystalline polyesteretherimide from a bisimidodiphenol

Details Liquid crystalline polyesteretherimide from a bisimidodiphenol Liquid crystalline polyesteretherimide from a bisimidodiphenol

1990-01-19

1991-01-29

Anderson, Harold D.

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528125, 528128, 528172, 528173, 528322, 548455, 548461, 548520, C08G 7316

Patent

active

049887920

ABSTRACT:
Liquid crystalline polyesteretherimides are prepared by a transesterification reaction involving terephthalic acid and acylated derivatives of 4-hydroxybenzoic acid and of certain bisimidodiphenols, or from the free bisimidodiphenol and aryl esters of the acids. In addition to being liquid crystalline, the polyesteretherimides are crystalline in the solid state and have relatively high glass transition temperatures.

REFERENCES:
patent: 4874836 (1989-10-01), Wakabayashi

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