Anisotropic compounds and liquid crystal mixtures

Details Anisotropic compounds and liquid crystal mixtures Anisotropic compounds and liquid crystal mixtures

1989-04-06

1992-06-09

Stoll, Robert L.

Compositions

Liquid crystal compositions

Containing nonsteryl liquid crystalline compound of...

25229963, 2522995, 2522996, C09K 1934, C09K 1930

Patent

active

051204673

ABSTRACT:
New anisotropic compounds of the formula (1) are useful in liquid crystal mixtures for electrooptical displays; at least one of the end groups of the compounds (1) is an alkyl group which carries cyano or halogen in a terminal or non-terminal position. This offers advantages for longitudinal polarization and/or cross-polarization of the anisotropic compounds with the aid of the comparatively highly polarizing cyano or halogen substituents, in particular high clear points, low ##EQU1## values and/or negative .DELTA..epsilon. values.

REFERENCES:
patent: 4027950 (1977-06-01), Moriyama et al.
patent: 4147655 (1979-04-01), Dubois et al.
patent: 4191776 (1980-03-01), Nickl et al.
patent: 4293404 (1981-10-01), Deutscher et al.
patent: 4344856 (1982-08-01), Demus et al.
patent: 4348324 (1982-09-01), Demus et al.
patent: 4393231 (1983-07-01), Misaki et al.
patent: 4550981 (1985-11-01), Petrzilka et al.
patent: 4572794 (1986-02-01), Eidenschink et al.
patent: 4576732 (1986-03-01), Isogai et al.
patent: 4592858 (1986-06-01), Higuchi et al.
patent: 4596667 (1986-06-01), Inukai et al.
patent: 4613209 (1986-09-01), Goodby et al.
patent: 4622163 (1986-11-01), Huynh-Ba et al.
patent: 4657695 (1987-04-01), Saito et al.
patent: 4668427 (1987-05-01), Saito et al.
patent: 4694098 (1987-09-01), Hirai et al.
patent: 4695650 (1987-09-01), Walba et al.
patent: 4695651 (1987-09-01), Higuchi et al.
patent: 4725688 (1988-02-01), Taguchi et al.
Tsumo, Y. et al, Bull. Chem. Soc. Jpn., vol. 51(2), pp. 596-600 (1978).
Goodby, J. W. et al, Liquid Crystals and Ordered Fluids, vol. 4, Griffin, A., et al, Ed., Plenum Press, N.Y., pp. 1-32 (1974), Proceedings of an ACS symposium, Las Vegas, Mar. 29-Apr. 1, 1982.
Demus, D., Nonemissive Electrooptic Displays, pp. 83-119 (1975).
Dabrowski, R., et al, Mol. Cryst. Liq. Cryst., vol. 87, pp. 109-135 (1982).

Affiliated with

Also associated with

Rating

Anisotropic compounds and liquid crystal mixtures does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1802702