Anti-ferroelectric liquid crystal compounds

Compositions – Liquid crystal compositions – Containing nonsteryl liquid crystalline compound of...

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560 65, 560 83, 570129, 25229967, C09K 1912, C09K 1920, C07C 6976, C07C 2208

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059684135

ABSTRACT:
Novel anti-ferroelectric liquid crystal compounds of the formula (1), ##STR1## wherein R is a linear alkyl group having 6 to 12 carbon atoms, X is a hydrogen atom or a fluorine atom, n is an integer of 2 to 7, p is an integer of 0 to 2 and C* is an asymmetric carbon atom. The above anti-ferroelectric liquid crystal compounds have an anti-ferroelectric phase in a broad temperature range and have a low melting point, so that they can be advantageously used as a main component for a practically valuable liquid crystal material or as a component for a liquid crystal composition.

REFERENCES:
patent: 5108650 (1992-04-01), Koden et al.
patent: 5352382 (1994-10-01), Johno et al.
patent: 5702637 (1997-12-01), Johnson et al.
patent: 5705094 (1998-01-01), Takeuchi et al.
patent: 5716545 (1998-02-01), Kikuchi et al.
patent: 5723069 (1998-03-01), Mineta et al.
A.D.L. Chandani, et al., "Tristable Switching in Surface Stabilized Ferroelectric Liquid Crystals with a Large Spontaneous Polarization", Japan Journal of Appl. Physics, 27(5), L729-L732 (May 1988).
A.D.L. Chandani, et al., "Novel Phases Exhibiting Tristable Switching", Japan Journal of Appl. Physics, 28(7), L1261-L1264 (Jul. 1989).
A.D.L. Chandani, et al., "Antiferroelectric Chiral Smectic Phases Responsible for the Tristable Switching in MHPOBC", Japan Journal of Appl. Physics, 28(7), L1265-L1268 (Jul. 1989).
M. Johno, et al. "Smectic Layer Switching by an Electric Field in Ferroelectric Liquid Crystal Cells", Jap. Jour. Appl. Phys. 28(1), L119-L120 (Jan. 1989).
M. Johno, et al., Correspondence between Smectic Layer Switching and DC Hysteresis of Apparent Tilt Angle in an Antiferroelectric Liquid Crystal Mixture, Jap. Jour. Appl. Phys., 29(1), L111-L114 (Jan. 1990).
Y. Suzuki, et al., "New Fluorine-containing Ferroelectric Liquid Crystal Compounds Showing Tristable Switching", Liquid Crystals, 6(2), 167-174 (1989).

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