Compositions – Liquid crystal compositions
Patent
1994-02-24
1995-02-14
Wu, Shean
Compositions
Liquid crystal compositions
25229961, 25229963, C09K 1952, C09K 1934, C09K 1930
Patent
active
053892895
ABSTRACT:
The invention relates to a liquid-crystalline medium essentially comprising
a) 5-65% by weight of a component A, comprising two or more compounds selected from group A: ##STR1## b) 20-95% by weight of a component B comprising two or more compounds selected from group B: ##STR2## and c) 0-40% by weight of a component C, comprising one or more compounds having a clearing point above 170.degree. C., where R, X and Y each, independently of one another, have the following meanings:
REFERENCES:
patent: 4419264 (1983-12-01), Eidenschink et al.
patent: 4814523 (1989-03-01), Tanaka et al.
patent: 4923632 (1990-05-01), Sawada et al.
patent: 5122295 (1992-06-01), Weber et al.
patent: 5238599 (1993-08-01), Obikawa et al.
patent: 5250220 (1993-10-01), Wacktler et al.
patent: 5254698 (1993-10-01), Coates et al.
Bartmann Ekkehard
Kurmeier Hans A.
Plach Herbert
Poetsch Eike
Rieger Bernhard
Merck Patent Gesellschaft mit beschrankter Haftung
Wu Shean
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