Optically active liquid crystal compound having cyano group

Details Optically active liquid crystal compound having cyano group Optically active liquid crystal compound having cyano group

1987-08-18

1989-12-12

Gron, Teddy S.

Compositions

Liquid crystal compositions

Containing nonsteryl liquid crystalline compound of...

25229901, 2522995, 25229963, 25229965, 25229966, 25229967, 350350R, 350350S, 544296, 544298, 544316, 544318, 544333, 544334, 544335, 546255, 546258, 546257, 546261, 546264, 546300, 546330, 546339, 558419, 558420, 558423, 558425, G02F 113, C09K 1930, C09K 1934, C09K 1946, C09K 1920, C09K 1912, C07C12175, C07C23930

Patent

active

048866229

ABSTRACT:
An optically liquid crystalline compound having an extremely large spontaneous polarization value and a chiral smectic liquid crystal composition containing the compound are provided, the compound being expressed by the formula ##STR1## wherein m represents an integer of 2 to 18; l represents an integer of 0 to 12; n represents 0 or 1; R represents an alkyl group or an alkoxy group each of 2 to 20 carbon atoms, a halogen atom or cyano group; and A and B each represent a single bond, ##STR2## wherein X represents hydrogen atom, a halogen atom or cyano group, and a chiral smectic liquid crystal composition containing at least one kind of the above compound.

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