High temperature liquid-crystalline ester compounds

Details High temperature liquid-crystalline ester compounds High temperature liquid-crystalline ester compounds

1983-03-23

1985-03-05

Gron, Teddy S.

Compositions

Liquid crystal compositions

Containing nonsteryl liquid crystalline compound of...

2522995, 350350R, 260465D, 560102, 560107, 560108, 560116, C09K 334, C07C 69773, C07C 69753, C07C12152, C07C12004, C07C 6976

Patent

active

045029741

ABSTRACT:
New liquid-crystalline ester compounds which exhibit a liquid-crystalline phase within a broad temperature range and have a positive, dielectric anisotropy, and a liquid-crystalline composition comprising the same are provided which ester compounds are expressed by the general formula ##STR1## wherein R represents hydrogen atom or an alkyl group of 1 to 10 carbon atoms; ##STR2## X represents ##STR3## Y represents hydrogen atom, F, Cl or CN; and Z represents F, Cl or CN.

REFERENCES:
patent: 4229315 (1980-10-01), Krause et al.
patent: 4261652 (1981-04-01), Grat et al.
patent: 4340498 (1982-07-01), Sugimori
patent: 4387038 (1983-06-01), Fukui et al.
patent: 4387039 (1983-06-01), Sugimori et al.
patent: 4399298 (1983-08-01), Sugimori et al.
patent: 4400293 (1983-08-01), Romer et al.
patent: 4405488 (1983-09-01), Sugimori et al.
patent: 4410445 (1983-10-01), Baur et al.
patent: 4415470 (1983-11-01), Eidenschink et al.
Osman, M. A. et al., Mol. Cryst. Liq. Cryst., vol. 82 (Letters), pp. 331-338 (1983).

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