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US 4,330,426 AGranted
Cyclohexylbiphenyls, their preparation and use in dielectrics and electrooptical display elements
AssigneeMerck Patent GmbH
InventorsRudolf Eidenschink, Dietrich Erdmann, Joachim Krause, Ludwig Pohl
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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.
Claims7
A cyclohexylbiphenyl of the formula ##STR13## wherein R.sub.1 is alkyl of 1-12 C atoms and R.sub.2 is alkyl, alkoxy or alkanoyloxy each of 1-12 C atoms and each optionally perfluorinated.
Dependencies are inferred from the claim text.