Novel alkylsubstituted N-benzylideneanilines and liquid crystal

Details Novel alkylsubstituted N-benzylideneanilines and liquid crystal Novel alkylsubstituted N-benzylideneanilines and liquid crystal

1976-12-15

1979-11-06

Padgett, Benjamin R.

Compositions

Liquid crystal compositions

252408, 260566R, 260566F, 350350, C09K 334, G02F 113, C07C11900

Patent

active

041735447

ABSTRACT:
Novel alkylsubstituted N-benzylideneanilines of formula ##STR1## in which n and m each represent zero or integers of from 1 to 8 and wherein the sum of n plus m is at least 6; the novel formula (I) compounds are suitable for use as dielectric component of electro-optic LC-display devices. Liquid crystal compositions containing the novel compounds for use as dielectric phase in nematic or smectic electro-optic LC-display devices and an improved method for producing 4-alkylsubstituted and 4,4'-dialkylsubstituted N-benzylideneanilines including the novel formula (I) compounds by condensation of the corresponding aldehydes and anilines in bulk.

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Oh, Chan. S., Mol. Cryst. Liq. Cryst., vol. 42, pp. 1-14 (1977).

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