Liquid crystalline polyesters and methods for their production

Details Liquid crystalline polyesters and methods for their production Liquid crystalline polyesters and methods for their production

1991-04-05

1994-05-10

Kight, III, John

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

Synthetic resins

From carboxylic acid or derivative thereof

528272, 528300, 528100, 528104, 528106, 528110, 528112, 528176, 528193, 528194, 524 5, C08G 6300

Patent

active

053108590

ABSTRACT:
A liquid crystalline polyester comprising dicarboxylic acid units of the following formula (1): ##STR1## wherein R.sup.1 is a bivalent aromatic hydrocarbon group having from 6 to 18 carbon atoms, diol units of the following formula (2):

REFERENCES:
patent: 4581443 (1986-04-01), Garg
Journal of Polymer Science, Polymer Chemistry Ed., vol. 14, 1976, pp. 2043-2058, New York, U.S.; W. L. Jackson, Jr., et al.: "Liquid crystal polymers . . . "
Kobunshi Kagaku (Polymer Chemistry), vol. 30, No. 341, Sep. 1973, pp. 572-578 (no English language translation).
Polymer Journal, vol. 14, No. 1, 1982, pp. 9-17, Tokyo, JP; C. Ober, et al.: "Liquid crystal polymers . . . "
Macromolecules, vol. 20, No. 11, Nov. 1987, pp. 2660-2664, Wash., D.C., U.S.: K. Clausen, et al.: "Thermotropic . . . "
Patent Abstracts of Japan, vol. 14, No. 330 (C-741) [4273], Jul. 16, 1990 & Jp-A-2 120 317 (Japanese Synthetic Rubber Co., LTD.) Aug. 5, 1990.

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