Liquid crystal compositions with pleochroic anthraquines dyes

Details Liquid crystal compositions with pleochroic anthraquines dyes Liquid crystal compositions with pleochroic anthraquines dyes

1982-02-24

1985-01-29

Gron, Teddy S.

Compositions

Radioactive compositions

Nuclear reactor fuel

2522991, C09K 334, G02F 113

Patent

active

044962215

ABSTRACT:
A material suitable for a guest-host liquid crystal device comprises a soion of a liquid crystal material and a pleochroic dye where in the pleochroic dye comprises at least one anthrquinone compound free from water solubilizing and ionic substituents and having the formula: ##STR1## wherein Q is NH.sub.2, OH, alkyl, aryl, NO.sub.2 or halo;

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Hoffman, N. J. et al., JACS, vol. 45, pp. 1831-1838, (1923).

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