Compositions – Liquid crystal compositions – Containing pleochroic dye
Patent
1986-05-19
1988-04-12
Gron, Teddy S.
Compositions
Liquid crystal compositions
Containing pleochroic dye
350349, 534577, C09K 1900, G02F 113
Patent
active
047373105
ABSTRACT:
A liquid crystal composition containing azo dyes represented by the formula (I.sub.0) ##STR1## wherein X represents ##STR2## A.sup.1 represents --O-- or --NH--; R.sup.1 represents a hydrogen atom, an alkyl group, an alkoxyalkyl group, an aryloxyalkyl group, a dialkylaminoalkyl group, an arylaminoalkyl group, a cycloalkyl group, an alkoxy group, an alkoxyalkoxy group, an arylalkoxy group, an aryl group, a halogen atom or a group of ##STR3## D.sup.1 and D.sup.2 each represents an aromatic group which does not contain an ionic group;
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Imazeki Shuji
Iwanami Junko
Kaneko Masaharu
Mukoh Akio
Sato Mikio
Gron Teddy S.
Hitachi , Ltd.
Mitsubishi Chemical Industries
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