FLUORINATED XANTHINE AND ITS USE IN LIQUID CRYSTAL MIXTURE

PROBLEM TO BE SOLVED: To provide a liquid crystal mixture which has a large absolute value of dielectric anisotropy and has a preferable viscosity at a transparent point. SOLUTION: This compound represented by formula (I) (R1, R2, R3and R4are each H, an alkyl, or the like, but are simultaneously not...

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Hauptverfasser:	SCHMIDT WOLFGANG DR, HORNUNG BARBARA, WINGEN RAINER
Format:	Patent
Sprache:	eng
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 GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS 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 TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a liquid crystal mixture which has a large absolute value of dielectric anisotropy and has a preferable viscosity at a transparent point. SOLUTION: This compound represented by formula (I) (R1, R2, R3and R4are each H, an alkyl, or the like, but are simultaneously not H; X1and X2are each H or F, wherein at least one of X1and X2is F). COPYRIGHT: (C)2006,JPO&NCIPI