Patent ID: 7179511
Filing Date: 2007-02-20
Classification: C09K

Abstract:
1. A liquid crystalline medium comprising: at least one phenol ester of formula I in which R is H, an alkyl radical or alkenyl radical having up to 15 carbon atoms which is unsubstituted, monosubstituted by CN or CF A Z Y is F, Cl, or a monohalogenated or polyhalogenated alkyl, alkenyl, alkenyloxy or alkoxy radical having up to 5 carbon atoms, L is H or F, and m is 0, 1 or 2; and wherein R b is 0, 1 or 2, Y Alkyl* is a straight-chain alkyl radical having up to 9 carbon atoms, and Alkenyl or Alkenyl* is, in each case independently of one another, an alkenyl radical having up to 9 carbon atoms, wherein R X Z Y Y r is 0 or 1.