Interference pigments from molecules fixed in a cholesteric arrangement and their use

Pigments (I) of laminar structure with a thickness of 1-20 microns are claimed, contg. oriented crosslinked liq crystalline (LC) substances with a chiral phase (II). Also claimed are compsns (III) contg (I) and data carriers contg (I). Also claimed is a process for the prodn of (I), by orienting (II...

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Bibliographische Detailangaben
Hauptverfasser:	MUELLER-REES, CHRISTOPH, GOEBLMEIER, WALTER, DOPPELBERGER, JOHANN, JUNG, SILVIA
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ADHESIVES CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS CORRECTING FLUIDS DYES FILLING PASTES INFORMATION STORAGE INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER INKS LAKES MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS MORDANTS NATURAL RESINS ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING PHYSICS POLISHES USE OF MATERIALS THEREFOR WOODSTAINS
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Beschreibung
Zusammenfassung:	Pigments (I) of laminar structure with a thickness of 1-20 microns are claimed, contg. oriented crosslinked liq crystalline (LC) substances with a chiral phase (II). Also claimed are compsns (III) contg (I) and data carriers contg (I). Also claimed is a process for the prodn of (I), by orienting (II) (opt. after adding other pigments and/or dyes), crosslinking to a 3-dimensional structure and pulverising to the required particles size. Also claimed is a process for the prodn. of compsns. (III), by incorporating pigments (I) into suitable compsns (see below) by conventional methods and then orienting the pigment by the application of shear forces.