Liquid crystal composition

Details Liquid crystal composition Liquid crystal composition

1980-09-11

1982-04-13

Gron, Teddy S.

Compositions

Radioactive compositions

Nuclear reactor fuel

2522991, 350350R, 350350S, C09K 334, G02F 113

Patent

active

043244556

ABSTRACT:
A liquid crystal composition containing at least one quinophthalone series dye represented by the formula ##STR1## wherein: X represents hydrogen, a chlorine atom or a bromine atom; and R represents --OR.sup.1 or --SR.sup.1, wherein R.sup.1 represents an alkyl group, a cycloalkyl group, an alkoxyalkyl group, a phenyl group, a p-hydroxyphenyl group, a p-cycloalkylphenyl group, a p-alkylphenyl group, a p-alkoxyphenyl group or an aralkyl group; ##STR2## wherein R.sup.2 and R.sup.3 each represents hydrogen, an alkyl group, a hydroxyalkyl group, an alkoxyalkyl group, a cycloalkyl group, a phenyl group, a p-alkylphenyl group, a p-hydroxyphenyl group, a p-alkoxyphenyl group or an aralkyl group; or a saturated heterocyclic ring.

REFERENCES:
patent: 4003633 (1977-01-01), Yamashita
patent: 4105299 (1978-08-01), Huffman et al.
Cox, R. J., Mol. Cryst. Liq. Cryst., vol. 55, pp. 1-32 (1979).
Bloom, A., et al.; Mol. Cryst. Liq. Cryst. (Letters), vol. 41, pp. 1-4 (1977).
Uchida, T., et al., Mol. Cryst. Liq. Cryst. (Letters), vol. 34, pp. 153-158 (1977).
Bloom, A., et al., Mol. Cryst. Liq. Cryst., vol. 40, pp. 213-221 (1977).

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