Method of producing thermotropic liquid crystalline polyester

Details Method of producing thermotropic liquid crystalline polyester Method of producing thermotropic liquid crystalline polyester

1992-06-24

1994-03-29

Kight, III, John

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

Synthetic resins

From carboxylic acid or derivative thereof

528190, 528193, 528195, 528272, 528279, 528282, 528283, C08G 6378, C08G 6382, C08G 6387

Patent

active

052985938

ABSTRACT:
A thermotropic liquid crystalline polyester is produced by carrying out polycondensation of ester monomer [I-2], an aromatic dicarboxylic acid [II] and an aromatic carboxylic acid [III-2]. The amounts of the compounds [I-2] and [II] are substantially equivalent and the amount of the compound [III-2] is not more than 20 times that of [I-2] by mole. A thermotropic liquid crystalline polyester having good heat resistance, fluidity and uniformity can be produced.

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Macromolecular Chemie, 187, 1145-1150 (1986), Liquid crystalline polyesters with 1,4-cyclohexane units.
Macromolecules 1988, 21, 2865-2869, Thermotropic Liquid Crystalline Main-Chain Polyesters Containing Cyclooctyl Units. 4. Influence of the Methylene Spacer Length on the Nature of the Mesophase.
Urethanes Technology, Apr./May 1992, "Dow Jumps In-Feet First-With New CFC-Free and Rim Shoe Sole Processes", pp., 24,26.

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