OPTISCH AKTIVE, IN 4-STELLUNG EINEN MESOGENEN REST TRAGENDE 1,3-DIOXOLAN-DERIVATE, EIN VERFAHREN ZU IHRER HERSTELLUNG UND IHRE VERWENDUNG ALS DOTIERSTOFFE IN FLUESSIGKRISTALLMISCHUNGEN

Optically active 1,3-dioxolane derivates of the general formula which carry a mesogenic radical in the 4-position are suitable as dopes in - in particular ferroelectric - liquid-crystal mixtures. The symbols in the general formula have the following meanings: R has a structure analogous to the moiet...

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Hauptverfasser:	ESCHER, CLAUS., 6109 MUEHLTAL, DE, WINGEN, RAINER., 6234 HATTERSHEIM, DE, MUELLER, INGRID., 6238 HOEIM, DE, GAY, JUERGEN, 1000 BERLIN, DE, DUEBAL, HANS-ROLF., 6240 KOENIGSTEIN, DE, OHLENDORF, DIETER., 6327 LIEDERBACH, DE, INOGUCHI, YOSHIO., 6000 FRANKFURT, DE, SCHEROWSKY, G., DR, HEMMERLING, WOLFGANG., 6231 SULZBACH, DE
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 1,3-dioxolane derivates of the general formula which carry a mesogenic radical in the 4-position are suitable as dopes in - in particular ferroelectric - liquid-crystal mixtures. The symbols in the general formula have the following meanings: R has a structure analogous to the moiety of the general formula on the right of X or is an alkyl or alkylene radical, which may be substituted, R , R and R are H or alkyl (R is alternatively alkenyl), which may also be substituted [R and R , together with the C(2) of the dioxolane ring, may alternatively be cycloaliphatic or keto groups], j, l and n are zero, 1 or 2, and k and m are zero or 1, with the proviso that n is zero if k is zero, m is zero if n is zero, and 1