W-substituted, optically active alkanol ester derivatives

Details W-substituted, optically active alkanol ester derivatives W-substituted, optically active alkanol ester derivatives

1989-09-19

1991-09-10

Stoll, Robert L.

Compositions

Liquid crystal compositions

Containing nonsteryl liquid crystalline compound of...

25229965, 25229966, 544238, 544242, 560 62, 560 63, C09K 1912, C09K 1910, C09K 198

Patent

active

050471724

ABSTRACT:
Novel compounds characterized by increased spontaneous polarization values as one of the important specific features required for ferroelectric liquid crystal compositions, a liquid crystal composition containing the same, and an optical switching element utilizing the composition as a liquid crystal. The compounds are expressed by the formula (I) or (I') ##STR1##

REFERENCES:
patent: 4725688 (1988-02-01), Taguchi et al.
patent: 4775223 (1988-10-01), Yoshinga et al.
patent: 4834904 (1989-05-01), Krause et al.
patent: 4911863 (1990-03-01), Sage et al.
Sage, Ian C. et al., "Liquid Crystal Compounds Mixtures & Devices", Publication WO87/05012, Aug. 27, 1987.

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