Halogen-containing, optically active liquid crystal compound and

Details Halogen-containing, optically active liquid crystal compound and Halogen-containing, optically active liquid crystal compound and

1986-03-11

1988-10-25

Gron, Teddy S.

Compositions

Liquid crystal compositions

Containing nonsteryl liquid crystalline compound of...

25229967, 25229901, 350350S, 560 59, 560 65, 560 66, 560 73, 560102, 560108, 560109, C09K 1920, C09K 1912, C09K 1952, C07C 6976

Patent

active

047802421

ABSTRACT:
A novel optically active liquid crystal compound and a liquid crystal composition containing the same are provided, which compound is expressed by the formula ##STR1## wherein R.sub.1 is alkyl or alkoxy of 4-18 C; R.sub.2 is alkyl, alkoxy, acyl or alkoxymethyl of 4-18 C; but either one of R.sub.1 or R.sub.2 is an optically active group; either one of X.sub.1 or X.sub.2 is halogen atom and the other is H; m and n each are 0 or 1 and m+n is 0 or 1.

REFERENCES:
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patent: 4647398 (1987-03-01), Saito et al.
patent: 4689176 (1987-08-01), Inoue et al.
Gray et al., Liquid Crystals & Plastic Crystals, vol. 1, pp. 142-143, (1974).
Li et al., CA 94:191853d, (1981).
Demus et al., Flussige Kristalle in Tabellon II, pp. 133-136, (1984).
Gray et al., Mol. Cryst. Liq. Cryst., 67, pp. 1-24, (1981).

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