发明授权
US4330426A Cyclohexylbiphenyls, their preparation and use in dielectrics and electrooptical display elements 失效
环己基联苯,它们的制备和用于电介质和电光显示元件

Cyclohexylbiphenyls, their preparation and use in dielectrics and
electrooptical display elements
摘要:
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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