Optically active mesomorphic compound and liquid crystal composi

Details Optically active mesomorphic compound and liquid crystal composi Optically active mesomorphic compound and liquid crystal composi

1988-11-07

1990-04-17

Gron, Teddy S.

Compositions

Liquid crystal compositions

Containing nonsteryl liquid crystalline compound of...

25229901, 25229967, 350350S, 558257, 560 55, G02F 113, C09K 1930, C07C 6976, C07C 6974

Patent

active

049178210

ABSTRACT:
An optically active mesomorphic compound represented by the formula: ##STR1## wherein R.sub.1 denotes an alkyl group having 1-16 carbon atoms; R.sub.2 denotes an alkyl group having 1-18 carbon atoms; C* is an asymmetric carbon atom; X is an oxygen atom or sulfur atom; and n is 0 or 1. The optically active mesomorphic compound, when included as a component, provides a ferro-electric liquid crystal composition showing an improved field response characteristic.

REFERENCES:
patent: 4576732 (1986-03-01), Isogai et al.
patent: 4596667 (1986-06-01), Inuka et al.
patent: 4613209 (1986-09-01), Goodby et al.
patent: 4728458 (1988-03-01), Higuchi et al.
patent: 4798680 (1989-01-01), Nohira et al.
patent: 4834904 (1989-05-01), Krause

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