Compositions – Liquid crystal compositions – Containing nonsteryl liquid crystalline compound of...
Patent
1987-04-16
1989-11-14
Terapane, John F.
Compositions
Liquid crystal compositions
Containing nonsteryl liquid crystalline compound of...
25229901, 25229963, 544315, 544318, 544335, 544298, 558414, 558416, 558426, 560 59, 560124, C09K 1934, C09K 1930, C07C 6976, C07C 6974
Patent
active
048805610
ABSTRACT:
Disclosed is an optically active cyclopropane compound represented by the formula (1): ##STR1## wherein R is an alkyl or cycloalkyl group, n is 0 or 1, Y.sup.4 is --CO.sub.2 CH.sub.2 --, --OCO-- or --OCH.sub.2 --, Y.sup.1, Y.sup.2 and Y.sup.3 independently represent --CO.sub.2 --, --OCO--, --O--, a direct bond or --CH.sub.2 O--, Z.sup.1, Z.sup.2, and Z.sup.3 independently represent ##STR2## A.sup.1, A.sup.2 and A.sup.3 independently represent fluorine, bromine, chlorine, a cyano group or hydrogen, and the mark ##STR3## indicates an asymmetric carbon atom. The optically active cyclopropane compound includes a compound which exhibits a ferroelectric liquid crystalline characteristic, and a compound which does not exhibit a ferroelectric liquid characteristic when used alone, but, can be used as a constituent of a ferroelectric liquid crystal composition.
REFERENCES:
patent: 4638073 (1987-01-01), Walba et al.
Petrzilka et al., Mol. Cryst. Liq. Cryst., Vol. 133, pp. 85-96 (1986).
Higuchi Ryoichi
Mikami Naoko
Sakurai Takao
Tabohashi Tatsuru
Takeuchi Koji
Ajinomoto Co. Inc.
Terapane John F.
Thomas J. E.
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