Ferroelectric chiral smectic liquid crystal composition and liqu

Details Ferroelectric chiral smectic liquid crystal composition and liqu Ferroelectric chiral smectic liquid crystal composition and liqu

1993-06-16

1996-05-07

Geist, Gary

Compositions

Liquid crystal compositions

Containing nonsteryl liquid crystalline compound of...

25229966, 25229960, 359104, C09K 1934, C09K 1912, C09K 1906, G02F 113

Patent

active

055142974

ABSTRACT:
A ferroelectric chiral smectic liquid crystal composition, comprising at least one compound represented by the following formula (I): ##STR1## wherein R.sub.1 and R.sub.2 respectively denote a linear or branched alkyl group having 1-18 carbon atoms capable of having a substituent; X.sub.1 and X.sub.2 respectively denote a single bond, ##STR2## Y.sub.1 denotes --CH.sub.2 O-- or --OCH.sub.2 ; and m and n are respectively 1 or 2; and at least one compound represented by the following formula (II): ##STR3## wherein R.sub.3 and R.sub.4 respectively denote a linear or branched alkyl group having 1-18 carbon atoms capable of having a substituent, at least one of R.sub.3 and R.sub.4 being optically active; and; X.sub.3 and X.sub.4 respectively denote a single bond, ##STR4##

REFERENCES:
patent: 4279770 (1981-07-01), Inukai et al.
patent: 4753752 (1988-06-01), Raynes et al.
patent: 4783280 (1988-08-01), Petrzilka et al.
patent: 4911863 (1990-03-01), Sage et al.
patent: 5183586 (1993-02-01), Terada et al.
patent: 5188761 (1993-02-01), Terashima et al.
patent: 5198150 (1993-03-01), Takeshita et al.
Patent Abstracts of Japan, vol. 13, No. 61 (C-567) 3409! (Feb. 10, 1989) 63-254182.

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