Liquid crystal copolyesters containing terephthalic acid, 2,6-na

Details Liquid crystal copolyesters containing terephthalic acid, 2,6-na Liquid crystal copolyesters containing terephthalic acid, 2,6-na

1978-05-08

1980-05-06

Lee, Lester L.

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528193, 528194, C08G 6318

Patent

active

042018560

ABSTRACT:
Disclosed are liquid crystal copolyesters having melting points low enough to allow the copolyesters to be melt-processed in conventional equipment. The copolyesters are prepared from terephthalic acid, 2,6-naphthalenedicarboxylic acid, a diacyl ester of hydroquinone and a diacyl ester of resorcinol and contain the following divalent radicals: ##STR1##

REFERENCES:
patent: 3160602 (1964-12-01), Kantor et al.
patent: 3637595 (1972-01-01), Cottis et al.
patent: 3778410 (1973-12-01), Kuhfass et al.
patent: 4083829 (1978-04-01), Calundann et al.

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