Antiferroelectric liquid crystal composition

Details Antiferroelectric liquid crystal composition Antiferroelectric liquid crystal composition

1995-03-16

1997-12-23

Kelly, C. H.

Compositions

Liquid crystal compositions

2522996, 25229961, 25229966, 25229965, 25229967, C09K 1912, C09K 1920, C09K 1952, C09K 1934

Patent

active

057003920

ABSTRACT:
An antiferroelectric liquid crystal composition comprising a liquid crystal composition having the chiralsmectic C.sub.A phase and a compound represented by the formula (I) shown below: ##STR1## wherein X is --CH.sub.3, --CF.sub.3 or --C.sub.2 H.sub.5 ; R.sup.1 and R.sup.2 are straight-chain or branched alkyl radicals having 3 to 14 and 3 to 10 carbon atoms respectively; Y represents a single bond, or --O--, --CO--, --COO-- or --OCO-- radical; Z represents --COO--, --C.tbd.C-- or --CH.sub.2 CH.sub.2 -- radical; and A.sup.1, A.sup.2 and A.sup.3 independently represent a six membered ring including benzene rings, cyclohexane rings, pyridine rings, and pyrimidine rings, at least one hydrogen of which six membered rings may be replaced by a fluorine atom, chlorine atom, bromine atom, cyano group, nitro group, methyl group, ethyl group or methoxy group.

REFERENCES:
patent: 4576732 (1986-03-01), Isogai et al.
patent: 4754051 (1988-06-01), Sasaki et al.
patent: 4921632 (1990-05-01), Nakamura et al.
patent: 4961874 (1990-10-01), Takeuchi et al.
patent: 5046823 (1991-09-01), Mori et al.
patent: 5110498 (1992-05-01), Suzuki et al.
patent: 5151213 (1992-09-01), Reiffenrath et al.
patent: 5171471 (1992-12-01), Suzuki et al.
patent: 5184847 (1993-02-01), Suzuki et al.
patent: 5204020 (1993-04-01), Suzuki et al.
patent: 5262086 (1993-11-01), Suzuki et al.
patent: 5316694 (1994-05-01), Murashino et al.
patent: 5330678 (1994-07-01), Okabe et al.
patent: 5344586 (1994-09-01), Suzuki et al.
patent: 5352382 (1994-10-01), Johno
patent: 5356562 (1994-10-01), Greenfield et al.
patent: 5374375 (1994-12-01), Yui et al.
patent: 5378392 (1995-01-01), Murashino et al.
patent: 5378396 (1995-01-01), Yui et al.
patent: 5393460 (1995-02-01), Okabe
patent: 5417885 (1995-05-01), Suzuki et al.
patent: 5534190 (1996-07-01), Johno et al.
Nishiyama et al., "Effect of Size of the Lateral Substituent at the Chiral Centre on the Stability of Some Chiral Smectic Liquid-Crystalline Phases" Journal of Materials Chemistry 3(1993)No. 2, Cambridge, GB, pp. 149-159.
Suzuki et al., "New Fluorine-Containing Ferroelectric Liquid Crystal Compounds Containing Tristable Switching" Liquid Crystals 6(1989) No.2, London, GB, pp. 167-174.
Japanese Journal of Applied Physics, vol. 27, No. 5, May 1988, pp. L729-L732, May 5, 1988.
Mol. Cryst. Liq. Cryst., 1977, vol. 40, pp. 33-48.

Affiliated with

Also associated with

Rating

Antiferroelectric liquid crystal composition does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Antiferroelectric liquid crystal composition, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Antiferroelectric liquid crystal composition will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1799844