Liquid crystalline polyesters, their composition, and their uses

Details Liquid crystalline polyesters, their composition, and their uses Liquid crystalline polyesters, their composition, and their uses

1998-09-30

1999-11-23

Acquah, Samuel A.

Radiation imagery chemistry: process, composition, or product th

Liquid crystal process, composition, or product

528176, 528190, 528191, 528192, 528193, 528194, 528272, 528298, 528302, 528306, 528308, 525437, 525444, 430627, 430631, 428 1, 428 641, 428357, C08K 1900, C08G 6302, C08F 2000

Patent

active

059897589

ABSTRACT:
There are provided liquid crystalline polyesters comprising 4'-hydroxy-4-stilbenecarboxylic acid type units, dicarboxylic acid units acting as a mesogen such as 4,4'-stilbenecarboxylic acid and catechol units as essential ingredients, and a liquid crystalline polyester composition comprising said polyesters and optically active liquid crystalline polyesters consisting essentially of 4,4'-stilbenedicarboxylic acid type units and aliphatic diol units having asymmetric carbons.

REFERENCES:
patent: 5246747 (1993-09-01), Gillberg-Laforce et al.
patent: 5438421 (1995-08-01), Sugawara et al.
patent: 5583672 (1996-12-01), Kim
patent: 5648860 (1997-07-01), Ooi et al.
patent: 5783120 (1998-07-01), Ouderkirk et al.
patent: 5825543 (1998-10-01), Ouderkirk et al.

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