Liquid crystalline substituted 1,3-dioxanes and mixtures contain

Details Liquid crystalline substituted 1,3-dioxanes and mixtures contain Liquid crystalline substituted 1,3-dioxanes and mixtures contain

1979-12-12

1982-09-07

Gron, Teddy S.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

2522995, 25229961, 350350R, C09K 334, G01F 113, C07D31906, C07D31904

Patent

active

043483240

ABSTRACT:
Liquid crystal substituted 1,3 dioxanes and mixtures containing the same.
The invention relates to liquid crystalline substituted 1,3 dioxanes and substances containing the same, for electrooptical arrays for the modulation of incident or transmitted light as well as for the reproduction of figures, symbols and images.
The objects of the invention are nematic crystal liquid substances with favorable properties with respect to melting and clear points; stability toward thermal stress, effect of light, chemicals and electric fields as well as loss of color; and processes for their production.
The task is solved by the creation of new nematic liquid-crystal substances.
As per invention, liquid crysalline 2,5-disubstituted derivatives of 1,3-dioxane of the general formula: ##STR1## are proposed, wherein: ##STR2## The new substances are used in mixtures containing at least one of the substances according to the invention.

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