US 4,361,494 A · Anisotropic cyclohexyl cyclohexylmethyl ethers

Abstract

New anisotropic compounds suitable for use in LC-display devices are disclosed and claimed. The new compounds are cyclohexyl cyclohexylmethyl ethers of formula (1): ##STR1## in which X and Y are respectively hydrogen, alkyl group with 1 to 12 C-atoms, alkoxy group with 1 to 12 C-atoms, monoalkylamino group with 1 to 12 C-atoms, nitrile group, nitro group, halogen, or cyclic radical of formula (1a) or (1b): ##STR2## in which R.sup.1 and R.sup.2 represent hydrogen alkyl group with 1 to 12 C-atoms, alkoxy group with 1 to 12 C-atoms, monoalkylamino group with 1 to 12 C-atoms, nitrile group, nitro group or halogen, and Z.sup.1 and Z.sup.2 represent simple covalent bonds or grounds of the formulas --COO--, --OOC--, --CH.sub.2 O-- or --OCH.sub.2, with the requirement that only one of the groups X, Y can be a cyclicradical or formula (1a) or (1b). Also disclosed and claimed are LC-mixtures containing these compounds and methods for their synthesis.

Claims14

Dependent claims

Anisotropic compounds of formula (1):

##STR21## in which X and Y independently represent hydrogen, an alkyl group with 1 to 12 C-atoms, an alkoxy group with 1 to 12 C-atoms, a monoalkylamino group with 1 to 12 C-atoms, a nitrile group, a nitro group, halogen, or a cyclic radical of formula (a) or (b):
##STR22## in which R.sup.1 and R.sup.2 independently represent hydrogen, an alkyl group with 1 to 12 C-atoms, an alkoxy group with 1 to 12 C-atoms, a monalkylamino group with 1 to 12 C-atoms, a nitrile group, a nitro group, or halogen, with the proviso that only one of the groups X,Y may be a cyclic radical of formula (a) or (b).

Dependencies are inferred from the claim text.

Anisotropic cyclohexyl cyclohexylmethyl ethers

Life of this patent

Anisotropic cyclohexyl cyclohexylmethyl ethers

Life of this patent

Abstract

Claims14