Liquid crystal compositions with pleochroic anthraquinone dyes

Details Liquid crystal compositions with pleochroic anthraquinone dyes Liquid crystal compositions with pleochroic anthraquinone dyes

1981-07-27

1983-09-20

Gron, Teddy S.

Compositions

Radioactive compositions

Nuclear reactor fuel

2522991, 260369, 260378, 260380, 260383, G02F 113, C09K 334

Patent

active

044052111

ABSTRACT:
A material suitable for a guest-host liquid crystal device comprises a solution of a liquid crystal material and a pleochroic dye wherein the pleochroic dye comprises at least one compound having a formula: ##STR1## wherein: R represents a group selected from optionally substituted alkyl and optionally substituted monocyclic aryl;

REFERENCES:
patent: 4032219 (1977-06-01), Constant et al.
patent: 4232949 (1980-11-01), Huffman
patent: 4232950 (1980-11-01), Benham
patent: 4273929 (1981-06-01), Boller et al.
patent: 4299720 (1981-11-01), Osman et al.
patent: 4304683 (1981-12-01), Moriiyaka et al.
patent: 4363743 (1982-12-01), Moeller et al.
Bloom, A., et al., Mol. Cryst. Liq. Cryst., vol. 41, (Letters), pp. 1-4 (1977).
Cochard, J. et al., Mol. Cryst. Liq. Cryst., vol. 70, pp. 1-19, (1981).
Saeva, F. D., Xerox Discl. J., vol. 1, Nos. 9/10, pp. 61-62, (1976).

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