Optically anisotropic melt forming copolyesters

Details Optically anisotropic melt forming copolyesters Optically anisotropic melt forming copolyesters

1983-12-16

1985-02-12

Lee, Lester L.

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528176, 528191, 528193, 528194, 528271, C08G 6360

Patent

active

044992599

ABSTRACT:
Copolyesters useful for fibers from hydroquinone, hydroxybenzoic acid or 6-hydroxy-2-naphthoic acid, 3,4'-dicarboxydiphenyl ether and optionally isophthalic acid or resorcinol.

REFERENCES:
patent: 3991014 (1976-11-01), Kleinschuster
patent: 4066620 (1978-01-01), Kleinschuster
patent: 4118372 (1978-10-01), Schaefgen
patent: 4267304 (1981-05-01), Feasey et al.
patent: 4269965 (1981-05-01), Irwin

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