Liquid crystal compositions and devices and novel compounds

Details Liquid crystal compositions and devices and novel compounds Liquid crystal compositions and devices and novel compounds

1984-06-04

1986-07-01

Gron, Teddy S.

Compositions

Liquid crystal compositions

Containing pleochroic dye

350349, 546 37, C02F 113, C09K 334, C07C40300

Patent

active

045978913

ABSTRACT:
There are described novel perylene dyes which have at least one, and preferably two, substituted twisted biphenylene radicals. The substituted biphenylene radicals include substituents which confer a non-coplanar molecular configuration about the long axis of the dye molecule. The dyes are soluble in various liquid crystal materials and exhibit a high order parameter in solutions of liquid crystal material. Also disclosed are liquid crystal compositions and liquid crystal devices.

REFERENCES:
patent: 2890222 (1959-06-01), Eckert et al.
patent: 3043843 (1962-07-01), Koch
patent: 3554776 (1971-01-01), Gerson et al.
patent: 4378302 (1983-03-01), Aftergut et al.
patent: 4384107 (1983-03-01), Rogers et al.

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