Compositions – Liquid crystal compositions – Containing nonsteryl liquid crystalline compound of...
Patent
1996-05-23
1997-09-16
Wu, Shean C.
Compositions
Liquid crystal compositions
Containing nonsteryl liquid crystalline compound of...
544299, 544315, 544318, C09K 1934, C07D23902
Patent
active
056677227
ABSTRACT:
An antiferroelectric liquid crystal compound represented by the following general formula (I): ##STR1## wherein R.sup.1 represents an alkyl group having 6 to 16 carbon atoms; R.sup.2 represents a straight chain alkyl group having 3 to 8 carbon atoms or a branched alkyl group having 4 to 10 carbon atoms; and * means an asymmetric carbon atom, and an antiferroelectric liquid crystal composition comprising at least one liquid crystal compound as defined above. The optically active compound of the present invention is highly miscible with a number of known antiferroelectric liquid crystal compounds and thus capable of providing liquid crystal materials having improved temperature properties. A liquid crystal composition containing the optically active compound of the present invention is applicable to electro-optical devices with the use of antiferroelectric liquid crystals.
REFERENCES:
patent: 5316694 (1994-05-01), Murashiro
patent: 5378392 (1995-01-01), Murashiro
patent: 5405553 (1995-04-01), Terada et al.
patent: 5413735 (1995-05-01), Yamashita et al.
Hagiwara Toshimitsu
Iwaya Yukiharu
Kondo Hitoshi
Yamada Mamoru
Takasago International Corporation
Wu Shean C.
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