Liquid crystalline polyesteretherimides and intermediates theref

Details Liquid crystalline polyesteretherimides and intermediates theref Liquid crystalline polyesteretherimides and intermediates theref

1989-08-23

1991-01-29

Ceperley, Mary E.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D40310

Patent

active

049888218

ABSTRACT:
Liquid crystalline polyesteretherimides are prepared by a transesterification reaction involving hydroquinone, 4,4'-biphenol or 2,6-dihydroxynaphthalene and esters of certain bisimidodicarboxylic acids, or from the free bisimidodicarboxylic acids and esters of the dihydroxyaromatic compounds. In addition to being liquid crystalline, the polyesteretherimides are crystalline in the solid state and have relatively high glass transition temperatures.

REFERENCES:
patent: 4383105 (1983-05-01), Irwin
patent: 4728713 (1988-03-01), Hisgen et al.
patent: 4728714 (1988-03-01), Hisgen et al.
patent: 4762906 (1988-08-01), Hisgen et al.
Kricheldorf et al., Macromolecules, 21, 1929-1935 (1988).
Kricheldorf et al., J. Poly. Sci., Polymer Letters Ed., 23, 413-419 (1985).
Kricheldorf et al., Polymer, 28, 1772-1778 (1987).

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