CHLORODIFLUOROMETHOXYPHENYL AND LIQUID CRYSTALLINE COMPOSITION FOR ELECTROOPTICAL DEVICES BASED THEREON Russian patent published in 1996 - IPC

FIELD: indicators in electrooptical devices. SUBSTANCE: chlorodifluoromethoxy phenyl derivatives of formula I wherein A₁ and A₂ are 1,4-cyclohexyl, trans-1,3- dioxane-2,5-diyl, tetrahydroquinoline, pyridin-2,5-diyl, unsubstituted 1,4-phenyl, Z¹ and Z² are single bond, -CH₂O,, COO, OOC, C ≡ C, R is alkyl, X₁ is hydrogen, X₂ and X₃ are hydrogen and fluorine provided that when A₂ is heteroaromatic, then A₁ is unsaturated. Liquid crystalline composition comprises 10-35 wt% of compound of formula I. EFFECT: improved properties of the liquid crystalline composition for electrooptical devices based thereon. 2 tbl