VERWENDUNG VON OPTISCH AKTIVEN OXIRAN-2CARBONS|UREESTERN ALS DOTIERSTOFFE IN FLUESSIGKRISTALLMISCHUNGEN, DIESE ENTHALTENDE FLUESSIGKRISTALLMISCHUNGEN UND NEUE OPTISCH AKTIVE OXIRAN-2-CARBONSAEUREESTER

Optically active oxirane-2-carboxylic esters with a mesogenic moiety are suitable for use as dopants in liquid crystal mixtures. They lead to liquid-crystalline ferroelectric phases having short response times and to electroclinic phases having large electroclinic coefficients. A further advantage i...

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Hauptverfasser:	SCHEROWSKY, GUENTER, DR, GAY, JUERGEN, MUELLER, INGRID, DUEBAL, HANS-ROLF, ESCHER, CLAUS, HEMMERLING, WOLFGANG, OHLENDORF, DIETER, WINGEN, RAINER
Format:	Patent
Sprache:	ger
Schlagworte:	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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Zusammenfassung:	Optically active oxirane-2-carboxylic esters with a mesogenic moiety are suitable for use as dopants in liquid crystal mixtures. They lead to liquid-crystalline ferroelectric phases having short response times and to electroclinic phases having large electroclinic coefficients. A further advantage is that they induce a helix of very small pitch, so that they are also suitable for helix compensation in LC mixtures.