Benzoic acid derivative having a large positive dielectric aniso

Details Benzoic acid derivative having a large positive dielectric aniso Benzoic acid derivative having a large positive dielectric aniso

1990-02-14

1991-12-03

Stoll, Robert L.

Compositions

Liquid crystal compositions

Containing nonsteryl liquid crystalline compound of...

25229901, 560 59, 560 62, 560 64, 560 65, 558425, 570129, C09K 1920, C09C 6976, C07C25500

Patent

active

050698141

ABSTRACT:
A benzoic acid derivative having a large positive dielectric anisotropy value and a superior compatibility, reducing the threshold voltage value of the resulting liquid crystal cell and being very effective for broadening the mesomorphic range of the resulting liquid crystal composiiton and reducing the driving voltage, and a liquid crystal composition containing the derivative are provided, which benzoic acid derivative is expressed by the formula ##STR1## wherein R represents an alkyl group of 1 to 10 carbon atoms and A represents ##STR2##

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