Organic compounds -- part of the class 532-570 series – Organic compounds – Four or more ring nitrogens in the bicyclo ring system
Patent
1984-09-10
1988-02-02
Gron, Teddy S.
Organic compounds -- part of the class 532-570 series
Organic compounds
Four or more ring nitrogens in the bicyclo ring system
2522995, 2522996, 25229961, 25229962, 25229963, 25229964, 25229965, 25229966, 25229967, 558414, 558415, 558416, 558418, 558419, 558423, 558425, 558411, 558426, 558428, 558429, 558430, 560 19, 560 48, 560 45, 560 46, 560 59, 560 73, 560102, 560105, 560106, 560107, 560108, 560111, 560116, 560118, 560 8, 560125, 560138, 560141, 560356, 560 1, 570129, 570130, 570182, 570183, 570187, 570188, 544224, 544239, 544240, 544241, 544294, 544296, 544297, 544316, 544318, 544315, 544322, 544330, 544332, 544334, 544335,
Patent
active
047230053
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 .DELTA..epsilon./.epsilon..perp. values and/or negative .DELTA..epsilon. values.
REFERENCES:
patent: 3983049 (1976-09-01), Aftergut et al.
patent: 4027950 (1977-06-01), Moriyama et al.
patent: 4293434 (1981-10-01), Deutscher et al.
patent: 4311610 (1982-01-01), Zaschke et al.
patent: 4330426 (1982-05-01), Eidenschink et al.
patent: 4344856 (1982-08-01), Demus et al.
patent: 4348324 (1982-09-01), Demus et al.
patent: 4361494 (1982-11-01), Osman et al.
patent: 4363767 (1982-12-01), Demus et al.
patent: 4393231 (1983-07-01), Misaki et al.
patent: 4400293 (1983-08-01), Romer et al.
patent: 4510069 (1985-04-01), Eidenschime et al.
patent: 4514317 (1985-04-01), Huynh-Ba et al.
patent: 4550981 (1985-11-01), Petrzilka et al.
patent: 4564694 (1986-01-01), Hirai et al.
patent: 4565425 (1986-01-01), Petrzilfa et al.
patent: 4572794 (1986-02-01), Eidenschink et al.
patent: 4583826 (1986-04-01), Petrzilka et al.
Petrzilka, M., Mol. Cryst. Liq. Cryst., vol. 111, pp. 329-346 (Nov. 1984) presented at the 13th Freiburger Arbeit Stagung Flussigyristalle, Freiburg, Ger., Mar. 23-25, 1983.
Dabrowski, R., et al., Mol. Cryst. Liq. Cryst., vol. 107, pp. 411-443 (Jun. 1984).
Demus, D., et al., Flussige Kristalle in Tabellen II, VEB Deutscher Verlag Fur Grundstoffinoustrie, Leipzig, p. 38, Nos. 5233-5238 (1984), Compounds published by Deutscher, H. J., Dissertation B, Halle 1980.
Dabrowski, R., et al., Mol. Cryst. Liq. Cryst., vol. 87, pp. 109-135 (Jun. 1982).
Demus, D., Nonemissive Electrooptic Displays, pp. 83-119 (1975).
Demus, D., et al., Mol. Cryst. Liq. Cryst., vol. 63, pp. 129-144 (1981).
Titov, V. V., et al., Mol. Cryst. Liq. Cryst., vol. 47, pp. 1-5.
Abstract presented at 13th Freiburger Arbeitstagung Fluessigkristalle, Freiburg i. Br., Ger, Mar. 23-25, 1983, (Petrzilka).
Huynh-Ba Tuong
Osman Maged A.
Gron Teddy S.
Merck Patent Gesellschaft mit beschrankter Haftung
LandOfFree
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.
Profile ID: LFUS-PAI-O-1636449