发明授权
US4473487A 4-Fluorobiphenyl derivatives, their preparation, and dielectrics and electro-optical display element containing them 失效
4-氟联苯衍生物及其制备物,以及包含它们的电介质和电光显示元件

4-Fluorobiphenyl derivatives, their preparation, and dielectrics and
electro-optical display element containing them
摘要:
4-Fluorobiphenyl derivatives of the formula (I) ##STR1## wherein X is --CO--O-- or --O--CO--; Z is 1,4-phenylene or 1,4-cyclohexylene; and R is alkyl, alkoxy or alkanoyloxy, each of 1 to 8 atoms, are valuable components of liquid-crystalline dielectrics for electro-optical applications.
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