Optically active-2-methylbutyrate and materials using the same

Details Optically active-2-methylbutyrate and materials using the same Optically active-2-methylbutyrate and materials using the same

1987-12-15

1989-10-24

Gron, Teddy S.

Compositions

Liquid crystal compositions

Containing nonsteryl liquid crystalline compound of...

25229901, 25229966, 350350R, 350350S, 544315, 544316, 544318, 544334, 544335, 546290, 546300, 546301, 546302, 546303, 546330, 546339, 546341, 558414, 560141, G02F 113, C09K 1934, C07D23902, C07D, C07D

Patent

active

048760269

ABSTRACT:
An optically active-2-methylbutyrate capable of imparting a spontaneous polarization value to achiral smectic compositions and also constituting ferroelectric liquid crystal compositions exhibiting a fast response at room temperature, and a liquid crystal composition containing the same, and further a light-switching element therefrom, are provided, which optically active-2-methylbutyrate is expressed by the formula ##STR1## wherein R represents a linear or branched alkyl group or alkoxy group, each of 1 to 18 carbon atoms; A represents ##STR2## wherein X represents any one of F, Cl, Br or cyano group; and * indicates an optically active carbon atom.

REFERENCES:
patent: 4572413 (1988-06-01), Inoue et al.
patent: 4592858 (1986-06-01), Higuchi et al.
patent: 4684477 (1987-08-01), Sugimori et al.
patent: 4695651 (1987-09-01), Higuchi et al.
patent: 4697015 (1987-09-01), Kano et al.
patent: 4723018 (1988-02-01), Shionozaki et al.
patent: 4725688 (1988-02-01), Taguchi et al.
patent: 4728458 (1988-03-01), Higuchi et al.
patent: 4765924 (1988-08-01), Inoue et al.
patent: 4781857 (1988-11-01), Inoue et al.
patent: 4784792 (1988-11-01), Inoue et al.

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