Compositions – Liquid crystal compositions
Patent
1974-09-18
1976-09-07
Padgett, Benjamin R.
Compositions
Liquid crystal compositions
350150, 350160LC, C09K 334, G02F 113
Patent
active
039793206
ABSTRACT:
A liquid crystal composition having a homogeneous alignment of the liquid crystalline molecules, comprises a liquid crystal material, for example, nematic, smectic and cholesteric liquid crystal substances, an additive effective for forming the homogeneous alignment, said additive consisting of at least one heterocyclic compound having a five or six-membered heterocyclic ring containing therein at least one atomic group selected from the class consisting of the atomic group of the formulae; ##EQU1## wherein X is a hydrogen atom or substituted or unsubstituted phenyl radical, and at least one atomic group of the formula: ##EQU2## Y, wherein Y represents an oxygen or sulfur atom, said heterocyclic compounds being different from indigo, and, if necessary, a supplementary additive effective for enhancing the dynamic scattering property of the liquid crystal material, said supplementary additive consisting of at least one substance selected from the class consisting of
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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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