Liquid crystalline substances

Nematic liquid crystalline substances as additives in mixtures for electro-optical systems for the rendition of numbers, symbols and images. The additives provide new liquid crystalline substances of broad mesophase ranges which improve the chemical stability of the substance mixtures. It has been f...

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Bibliographic Details
Main Authors PASCHKE; REINHARD, DEMUS; DIETRICH, WIEGELEBEN; ADALBERT, ZASCHKE; HORST
Format Patent
LanguageEnglish
Published 26.05.1987
Edition4
Subjects
ADHESIVES
CHEMISTRY
DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING
DYES
FREQUENCY-CHANGING
HETEROCYCLIC COMPOUNDS
MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
NATURAL RESINS
NON-LINEAR OPTICS
OPTICAL ANALOGUE/DIGITAL CONVERTERS
OPTICAL LOGIC ELEMENTS
OPTICS
ORGANIC CHEMISTRY
PAINTS
PHYSICS
POLISHES
TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF
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Summary:Nematic liquid crystalline substances as additives in mixtures for electro-optical systems for the rendition of numbers, symbols and images. The additives provide new liquid crystalline substances of broad mesophase ranges which improve the chemical stability of the substance mixtures. It has been found that liquid crystalline 5-alkyl-pyridine-2-carboxylic acid esters of the general formula R1 = OCnH2n+1, CN, CnH2n+1 wherein m, n = 1 to 8 are suitable for utilization in mixtures for electro-optical displays for the rendition of numbers, symbols and images.
Bibliography:Application Number: US19850717419