Compositions – Liquid crystal compositions
Patent
1973-10-30
1976-08-17
Padgett, Benjamin R.
Compositions
Liquid crystal compositions
252408, 350160LC, G02F 113, G02F 116, C09K 334
Patent
active
039752852
ABSTRACT:
A liquid crystal composition having long-life dynamic light scattering properties under application of DC or AC voltage, comprising (1) at least one liquid crystalline substance selected from the group consisting of nematic and cholesteric, and (2) at least one additive selected from the group consisting of (A) mixtures of at least one first organic cyclic compound selected from the group consisting of quinone compounds, quinoneimine compounds, imino compounds, desoxybenzoin compounds, dibenzyl methane compounds and triphenyl methane compounds, with at least one second organic cyclic compound selected from the group consisting of hydroquinone compounds, aromatic amino compounds, heterocyclic amino compounds and alicyclic amino compounds, and (B) aromatic, heterocyclic and alicyclic compounds having at least one radical selected from the group consisting of carbonyl and imino radicals and at least one radical selected from the group consisting of hydroxyl and amino radicals.
REFERENCES:
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patent: 3803050 (1974-04-01), Haas et al.
patent: 3806229 (1974-04-01), Schoot et al.
patent: 3806230 (1974-04-01), Haas et al.
patent: 3814700 (1974-06-01), Aviran et al.
patent: 3838059 (1974-09-01), Wong
Baise A.; Teucher, I., Labes, M.; Appl. Phys. Lett., vol. 21, No. 4, pp. 142-143 (Aug. 15, 1972).
Gonda Michihiro
Miyazawa Yoshihide
Ohnishi Yoshitake
Ozutsumi Minoru
Gron T. S.
Hodogaya Chemical Co. Ltd.
Nippon Electric Company Ltd.
Padgett Benjamin R.
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