Halogen-substituted phenyl benzyl ether derivatives

Details Halogen-substituted phenyl benzyl ether derivatives Halogen-substituted phenyl benzyl ether derivatives

1987-07-01

1988-11-15

Gron, Teddy S.

Compositions

Liquid crystal compositions

Containing nonsteryl liquid crystalline compound of...

2522995, 25229901, 25229966, 350350R, 350350S, 560 55, 560 59, G02F 113, C09K 1906, C09K 1912, C07C 6976

Patent

active

047847913

ABSTRACT:
A novel liquid crystal compound represented by the general formula (I): ##STR1## (wherein R is a straight or branched alkyl or alkoxy group having 1 to 20 carbon atoms, R* is an optically active alkyl group having 4 to 20 carbon atoms, X is a fluorine atom or a chlorine atom, and n is 1 or 2), a liquid crystal composition containing at least one liquid crystal compound of the general formula (I), a chiral smectic liquid crystal composition containing at least one liquid crystal compound of the general formula (I), and an optical switching element utilizing the chiral smectic liquid crystal composition containing at least one liquid crystal compound of the general formula (I) are described.

REFERENCES:
patent: 4576732 (1986-03-01), Isogai et al.
patent: 4668427 (1987-05-01), Saito et al.
patent: 4710315 (1987-12-01), Schad et al.
patent: 4728458 (1988-03-01), Higulai et al.
patent: 4729847 (1988-03-01), Miyazawa et al.
Gray, G. W., et al., Liquid Crystals & Plastic Crystals, vol. 1, John Wiley & Sons, Inc., pp. 142-143, N.Y. (1974).
C. A. 108:14754, (1/11/88).
C. A. 106:206160t (6/15/87).

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