Optically anisotropic melt forming aromatic copolyesters based o

Details Optically anisotropic melt forming aromatic copolyesters based o Optically anisotropic melt forming aromatic copolyesters based o

1986-04-23

1987-05-12

Phynes, Lucille M.

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Web or sheet containing structurally defined element or...

Noninterengaged fiber-containing paper-free web or sheet...

26433121, 528171, 528173, 528176, 528190, 528193, 528194, 528206, B32B 2700

Patent

active

046649727

ABSTRACT:
Novel copolyesters derived from (a) aromatic diols, (b) dicarboxylic acids and (c) aromatic hydroxy carboxylic acids, in which t-butylhydroquinone constitutes 55 to 95 mole % of the diol component (a) are disclosed. These copolyesters are anisotropic and fabricable in the melt. They generally can be processed using conventional thermoplastic shaping techniques at temperatures below 350.degree. C. into moldings, fibers and films which have outstanding mechanical properties.

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W. J. Jackson, Jr., "Liquid Crystal Polymers: VI Liquid Crystalline Polyesters of Substituted Hydroquinones," Contemporary-Topics in Polymer Science, 1984, vol. 5, pp. 177-208.

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