| abstract |
New hydroterphenyls of formula I n n R.sup.1 --Cy--Cy--Ph--R.sup.2 I n n wherein R 1 is alkyl; R 2 is H, F, Cl, Br, I, OH, CN, alkyl, --O-alkyl, --COOR 3 or --O--CO--R 3 ; R 3 is H, alkyl, --Cy-alkyl, --Ph-alkyl, --Ph--O-alkyl, --Ph--CN or --Ph--F; Cy is 1,4-cyclohexylene; and Ph is 1,4-phenylene; can be used as dielectrics for electrooptical display elements. |