Compositions – Liquid crystal compositions – Containing nonsteryl liquid crystalline compound of...
Patent
1980-07-07
1982-05-18
Gron, Teddy S.
Compositions
Liquid crystal compositions
Containing nonsteryl liquid crystalline compound of...
2522995, 350350R, 350350S, 560141, 568642, 570129, 585 25, 585 20, G02F 113, C09K 334, C07C 1328, C07C 2124, C07C 43205, C07C 69017
Patent
active
043304265
ABSTRACT:
Compounds of the formula ##STR1## wherein R.sub.1 is alkyl of 1-12 C atoms and R.sub.2 is an optionally perfluorinated alkyl, alkoxy or alkanoyloxy group, each of 1-12 C atoms are valuable liquid crystalline components for broadening the mesophase temperature range of liquid crystalline dielectrics having negative dielectric anisotropy.
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Billard, J., et al., Mol. Cryst. Liq. Cryst., vol. 41 (Letters), pp. 217-222 (1978).
Advances in Liquid Crystal Research and Applications, Bath, L., Proceedings of Third L. C. Conf. of Socialist Countries, Budapest, Aug. 27-31 (1979), vol. 2, pp. 997-1002 Pergamon Press, N.Y. (1981).
Eidenschink Rudolf
Erdmann Dietrich
Krause Joachim
Pohl Ludwig
Gron Teddy S.
Merck Patent Gesellschaft mit beschrankter Haftung
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