FLUESSIGKRISTALLINE PHENYLPYRIMIDIN-CYCLOHEXANCARBONSAEUREESTER, VERFAHREN ZU IHRER HERSTELLUNG UND IHRE VERWENDUNG IN FLUESSIGKRISTALLMISCHUNGEN

Phenylpyrimidinyl trans-cyclohexanecarboxylates of the formula form, in addition to a relatively broad nematic phase, a smectic C phase if R denotes an alkyl radical having 10 to 16 carbon atoms, in particular 11 to 16 carbon atoms, or an alkyloxy radical having 8 to 14 carbon atoms and R denotes an...

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Hauptverfasser:	ESCHER,CLAUS,DR, OHLENDORF,DIETER,DR, HEMMERLING,WOLFGANG,DR, MUELLER,INGRID,DR, DUEBAL,HANS-ROLF,DR, WINGEN,RAINER,DR
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:	Phenylpyrimidinyl trans-cyclohexanecarboxylates of the formula form, in addition to a relatively broad nematic phase, a smectic C phase if R denotes an alkyl radical having 10 to 16 carbon atoms, in particular 11 to 16 carbon atoms, or an alkyloxy radical having 8 to 14 carbon atoms and R denotes an alkyl radical having 2 to 9 carbon atoms. Accordingly, they are suitable in particular as components of liquid-crystalline mixtures having a smectic C phase, since they induce a relatively broad nematic phase or widen a narrow nematic phase present and enlarge the temperature range of the smectic C phase towards low, but in particular towards high temperatures.