Security pigments and the process of making thereof

Disclosed are methods for using color inconstancy pigments and/or dyes, such as rare earth doped color inconstancy pigments, in security applications including semi-overt and covert security application.

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Bibliographische Detailangaben
Hauptverfasser:	LIN, HAI HUI, SCHWARTZ, RUSSELL J, POSTLE, STEPHEN, SCHOTTLAND, PHILIPPE, SAYERS, WILLIAM R, LEE, CASPAR
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ADHESIVES CHECKING-DEVICES CHEMISTRY COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS COMPOUNDS THEREOF DYES HANDLING OF COINS OR OF PAPER CURRENCY OR SIMILAR VALUABLEPAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING,DISPENSING, CHANGING OR DEPOSITING INORGANIC CHEMISTRY MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS NON-METALLIC ELEMENTS PAINTS PHYSICS POLISHES PREPARATION OF CARBON BLACK TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS,TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES
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Beschreibung
Zusammenfassung:	Disclosed are methods for using color inconstancy pigments and/or dyes, such as rare earth doped color inconstancy pigments, in security applications including semi-overt and covert security application.