Ortho-cyanophenyl biphenylcarboxylate liquid crystal esters and

Details Ortho-cyanophenyl biphenylcarboxylate liquid crystal esters and Ortho-cyanophenyl biphenylcarboxylate liquid crystal esters and

1979-01-08

1980-09-30

Torrence, Dolph H.

Compositions

Liquid crystal compositions

260465D, 350350R, C07C12160, C07C12175, C09K 334

Patent

active

042254540

ABSTRACT:
A number of alkyl and alkoxy-substituted ortho-cyanophenyl biphenylcarboxylate esters have been prepared for use as components for nematic liquid crystal mixtures which can be used in homeotropically aligned, field effect display devices or in dynamic scattering displays.
These materials have large negative dielectric anisotropies and high birefringence.

REFERENCES:
patent: 3925238 (1975-12-01), Gavrilovic et al.
patent: 3951846 (1976-04-01), Gavrilovic et al.
patent: 3953491 (1976-04-01), Steinstrasser et al.
patent: 4017416 (1977-04-01), Inukai et al.
patent: 4029594 (1977-06-01), Gavrilovic et al.
patent: 4073742 (1978-02-01), Erdmann et al.

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