Optical data carrier whose information layer contains light-absorbing compound having a number of chromophoric centers

Optical data carrier comprising a preferably transparent substrate which may, if desired, have previously been coated with a reflection layer and to whose surface a light-writeable information layer, if desired a reflection layer and if desired a protective layer or a further substrate or a covering...

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Bibliographische Detailangaben
1. Verfasser:	H. BERNETH,T. BIERINGER,F-K. BRUDER
Format:	Patent
Sprache:	eng
Schlagworte:	ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM ADHESIVES CHEMISTRY COLOUR PRINTING COMPOSITIONS BASED THEREON DYES HETEROCYCLIC COMPOUNDS INFORMATION STORAGE INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER LAKES LINING MACHINES MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS MORDANTS NATURAL RESINS ORGANIC CHEMISTRY ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES ORGANIC MACROMOLECULAR COMPOUNDS PAINTS PERFORMING OPERATIONS PHYSICS POLISHES PRINTING PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES STAMPS THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING TYPEWRITERS
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Beschreibung
Zusammenfassung:	Optical data carrier comprising a preferably transparent substrate which may, if desired, have previously been coated with a reflection layer and to whose surface a light-writeable information layer, if desired a reflection layer and if desired a protective layer or a further substrate or a covering layer have been applied, which can be written on or read by means of blue, red or infrared light, preferably laser light, where the information layer comprises a light-absorbent compound and, if desired, a binder, characterized in that the light-absorbent compound has at least two identical or different chromophoric centers and has at least one absorption maximum in the range from 340 to 820 nm.