Melt processable thermotropic wholly aromatic polyester containi

Details Melt processable thermotropic wholly aromatic polyester containi Melt processable thermotropic wholly aromatic polyester containi

1991-12-27

1992-12-15

Kight, III, John

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528176, 528190, 528194, 528219, 528271, 528272, C08G 6318, C08G 6300, C08G 6302

Patent

active

051718235

ABSTRACT:
The present invention discloses a wholly aromatic, melt processable polyester which is comprised of recurring moieties derived from the following compounds: 2,6-naphthalenedicarboxylic acid, 4-hydroxybenzoic acid, an aromatic dihydroxy compound, and 6-hydroxy-2-naphthoic acid. The resulting wholly aromatic polyester is capable of forming a thermotropic melt phase at temperatures below approximately 350.degree. C. and most preferably at temperatures below approximately 290.degree. C.

REFERENCES:
CA 111 (12): 97990u, Sugimoto et al., "Chemistry of Synthetic High Polymers" AB.

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