Compositions – Liquid crystal compositions – Containing nonsteryl liquid crystalline compound of...
Patent
1987-03-20
1988-11-01
Gron, Teddy S.
Compositions
Liquid crystal compositions
Containing nonsteryl liquid crystalline compound of...
25222901, 2522995, 350350R, 3503505, 546339, G02F 113, C09K 1934, C07D2117, C07D21182
Patent
active
047818573
ABSTRACT:
A novel liquid crystal compound exhibiting SC phase which, when added to an optically active liquid crystal, makes the resulting chiral smectic liquid crystal material exhibit superior performances in liquid crystal display elements utilizing the ferroelectricity of the material, and a chiral smectic C composition using the compound. The compound is expressed by the formula ##STR1## wherein X represents F or Cl and R.sub.1 and R.sub.2 each represent a straight chain alkyl group of 1 to 18 carbon atoms.
REFERENCES:
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patent: 4684220 (1987-08-01), Shionozaki et al.
patent: 4684477 (1987-08-01), Sugimori et al.
Pavluchemko, A. I., et al., Advances in Liquid Crystal Research and Applications, Data, L., Pergamon Press, Oxford, pp. 1007-1013, (1980).
Demus, D., et al., Flussige Kristalle in Tabellen II, VEB Deutscher Verlag fur Grumdstoffihaustrie, Leipzig, pp. 363-364, (1984).
Gray, G. W., et al., Liquid Crystals & Plastic Crystals, vol. 1, pp. 165-166, John Wiley & Sons, N.Y., (1974).
Inoue Hiromichi
Inukai Takashi
Miyazawa Kazutoshi
Ohno Kouji
Saito Shin-ichi
Chisso Corporation
Gron Teddy S.
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