Patent ID: 6036884
Filing Date: 2000-03-14
Classification: C07D,C09K

Abstract:
Liquid-crystalline medium based on a mixture of polar compounds having positive dielectric anisotropy, characterized in that it comprises one or more compounds of the general formula I, ##STR50## and simultaneously one or more compounds of the general formula I' ##STR51## in which R.sup.1 and R.sup.2 are each, independently of one another, an alkenyl radical having 2 to 7 carbon atoms,R.sup.0' is n-alkyl, alkoxy, oxaalkyl, fluoroalkyl or alkenyl, in each case having up to 12 carbon atoms, ##STR52## Y.sup.2' is H or F, and X.sup.0' is F, Cl, halogenated alkyl, alkenyl, alkoxy, alkenyloxy or oxaalkyl having 1 to 6 carbon atoms.