Classifications

• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07D—HETEROCYCLIC COMPOUNDS
  • C07D221/00—Heterocyclic compounds containing six-membered rings having one nitrogen atom as the only ring hetero atom, not provided for by groups C07D211/00 - C07D219/00
  • C07D221/02—Heterocyclic compounds containing six-membered rings having one nitrogen atom as the only ring hetero atom, not provided for by groups C07D211/00 - C07D219/00 condensed with carbocyclic rings or ring systems
  • C07D221/04—Ortho- or peri-condensed ring systems
• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07D—HETEROCYCLIC COMPOUNDS
  • C07D217/00—Heterocyclic compounds containing isoquinoline or hydrogenated isoquinoline ring systems
  • C07D217/12—Heterocyclic compounds containing isoquinoline or hydrogenated isoquinoline ring systems with radicals, substituted by hetero atoms, attached to carbon atoms of the nitrogen-containing ring
  • C07D217/14—Heterocyclic compounds containing isoquinoline or hydrogenated isoquinoline ring systems with radicals, substituted by hetero atoms, attached to carbon atoms of the nitrogen-containing ring other than aralkyl radicals
• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07D—HETEROCYCLIC COMPOUNDS
  • C07D311/00—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings
  • C07D311/02—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings ortho- or peri-condensed with carbocyclic rings or ring systems
  • C07D311/04—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring
  • C07D311/06—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms directly attached in position 2
  • C07D311/08—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms directly attached in position 2 not hydrogenated in the hetero ring
  • C07D311/12—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms directly attached in position 2 not hydrogenated in the hetero ring substituted in position 3 and unsubstituted in position 7
• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07D—HETEROCYCLIC COMPOUNDS
  • C07D311/00—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings
  • C07D311/02—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings ortho- or peri-condensed with carbocyclic rings or ring systems
  • C07D311/78—Ring systems having three or more relevant rings
  • C07D311/80—Dibenzopyrans; Hydrogenated dibenzopyrans
• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07D—HETEROCYCLIC COMPOUNDS
  • C07D455/00—Heterocyclic compounds containing quinolizine ring systems, e.g. emetine alkaloids, protoberberine; Alkylenedioxy derivatives of dibenzo [a, g] quinolizines, e.g. berberine
  • C07D455/03—Heterocyclic compounds containing quinolizine ring systems, e.g. emetine alkaloids, protoberberine; Alkylenedioxy derivatives of dibenzo [a, g] quinolizines, e.g. berberine containing quinolizine ring systems directly condensed with at least one six-membered carbocyclic ring, e.g. protoberberine; Alkylenedioxy derivatives of dibenzo [a, g] quinolizines, e.g. berberine
  • C07D455/04—Heterocyclic compounds containing quinolizine ring systems, e.g. emetine alkaloids, protoberberine; Alkylenedioxy derivatives of dibenzo [a, g] quinolizines, e.g. berberine containing quinolizine ring systems directly condensed with at least one six-membered carbocyclic ring, e.g. protoberberine; Alkylenedioxy derivatives of dibenzo [a, g] quinolizines, e.g. berberine containing a quinolizine ring system condensed with only one six-membered carbocyclic ring, e.g. julolidine
• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07D—HETEROCYCLIC COMPOUNDS
  • C07D491/00—Heterocyclic compounds containing in the condensed ring system both one or more rings having oxygen atoms as the only ring hetero atoms and one or more rings having nitrogen atoms as the only ring hetero atoms, not provided for by groups C07D451/00 - C07D459/00, C07D463/00, C07D477/00 or C07D489/00
  • C07D491/02—Heterocyclic compounds containing in the condensed ring system both one or more rings having oxygen atoms as the only ring hetero atoms and one or more rings having nitrogen atoms as the only ring hetero atoms, not provided for by groups C07D451/00 - C07D459/00, C07D463/00, C07D477/00 or C07D489/00 in which the condensed system contains two hetero rings
  • C07D491/04—Ortho-condensed systems
• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
  • C07F15/00—Compounds containing elements of Groups 8, 9, 10 or 18 of the Periodic Table
  • C07F15/06—Cobalt compounds
  • C07F15/065—Cobalt compounds without a metal-carbon linkage
• • C—CHEMISTRY; METALLURGY
  • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
  • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
  • C09B23/00—Methine or polymethine dyes, e.g. cyanine dyes
  • C09B23/0091—Methine or polymethine dyes, e.g. cyanine dyes having only one heterocyclic ring at one end of the methine chain, e.g. hemicyamines, hemioxonol
• • C—CHEMISTRY; METALLURGY
  • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
  • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
  • C09B23/00—Methine or polymethine dyes, e.g. cyanine dyes
  • C09B23/02—Methine or polymethine dyes, e.g. cyanine dyes the polymethine chain containing an odd number of >CH- or >C[alkyl]- groups
  • C09B23/04—Methine or polymethine dyes, e.g. cyanine dyes the polymethine chain containing an odd number of >CH- or >C[alkyl]- groups one >CH- group, e.g. cyanines, isocyanines, pseudocyanines
• • C—CHEMISTRY; METALLURGY
  • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
  • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
  • C09B23/00—Methine or polymethine dyes, e.g. cyanine dyes
  • C09B23/10—The polymethine chain containing an even number of >CH- groups
  • C09B23/105—The polymethine chain containing an even number of >CH- groups two >CH- groups
• • C—CHEMISTRY; METALLURGY
  • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
  • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
  • C09B29/00—Monoazo dyes prepared by diazotising and coupling
  • C09B29/0025—Monoazo dyes prepared by diazotising and coupling from diazotized amino heterocyclic compounds
  • C09B29/0029—Monoazo dyes prepared by diazotising and coupling from diazotized amino heterocyclic compounds the heterocyclic ring containing only nitrogen as heteroatom
• • C—CHEMISTRY; METALLURGY
  • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
  • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
  • C09B29/00—Monoazo dyes prepared by diazotising and coupling
  • C09B29/0025—Monoazo dyes prepared by diazotising and coupling from diazotized amino heterocyclic compounds
  • C09B29/0074—Monoazo dyes prepared by diazotising and coupling from diazotized amino heterocyclic compounds the heterocyclic ring containing nitrogen and sulfur as heteroatoms
• • C—CHEMISTRY; METALLURGY
  • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
  • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
  • C09B29/00—Monoazo dyes prepared by diazotising and coupling
  • C09B29/34—Monoazo dyes prepared by diazotising and coupling from other coupling components
  • C09B29/36—Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds
• • C—CHEMISTRY; METALLURGY
  • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
  • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
  • C09B44/00—Azo dyes containing onium groups
  • C09B44/10—Azo dyes containing onium groups containing cyclammonium groups attached to an azo group by a carbon atom of the ring system
• • C—CHEMISTRY; METALLURGY
  • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
  • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
  • C09B47/00—Porphines; Azaporphines
  • C09B47/04—Phthalocyanines abbreviation: Pc
  • C09B47/045—Special non-pigmentary uses, e.g. catalyst, photosensitisers of phthalocyanine dyes or pigments
• • C—CHEMISTRY; METALLURGY
  • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
  • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
  • C09B47/00—Porphines; Azaporphines
  • C09B47/04—Phthalocyanines abbreviation: Pc
  • C09B47/08—Preparation from other phthalocyanine compounds, e.g. cobaltphthalocyanineamine complex
  • C09B47/085—Preparation from other phthalocyanine compounds, e.g. cobaltphthalocyanineamine complex substituting the central metal atom
• • C—CHEMISTRY; METALLURGY
  • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
  • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
  • C09B47/00—Porphines; Azaporphines
  • C09B47/04—Phthalocyanines abbreviation: Pc
  • C09B47/08—Preparation from other phthalocyanine compounds, e.g. cobaltphthalocyanineamine complex
  • C09B47/24—Obtaining compounds having —COOH or —SO3H radicals, or derivatives thereof, directly bound to the phthalocyanine radical
  • C09B47/26—Amide radicals
• • C—CHEMISTRY; METALLURGY
  • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
  • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
  • C09K9/00—Tenebrescent materials, i.e. materials for which the range of wavelengths for energy absorption is changed as a result of excitation by some form of energy
  • C09K9/02—Organic tenebrescent materials
• • G—PHYSICS
  • G11—INFORMATION STORAGE
  • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
  • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
  • G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
  • G11B7/0045—Recording
  • G11B7/00455—Recording involving reflectivity, absorption or colour changes
• • G—PHYSICS
  • G11—INFORMATION STORAGE
  • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
  • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
  • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
• • G—PHYSICS
  • G11—INFORMATION STORAGE
  • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
  • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
  • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
  • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
  • G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
  • G11B7/244—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only
• • G—PHYSICS
  • G11—INFORMATION STORAGE
  • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
  • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
  • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
  • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
  • G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
  • G11B7/244—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only
  • G11B7/246—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only containing dyes
  • G11B7/247—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only containing dyes methine or polymethine dyes
• • G—PHYSICS
  • G11—INFORMATION STORAGE
  • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
  • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
  • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
  • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
  • G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
  • G11B7/244—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only
  • G11B7/246—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only containing dyes
  • G11B7/248—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only containing dyes porphines; azaporphines, e.g. phthalocyanines
• • G—PHYSICS
  • G11—INFORMATION STORAGE
  • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
  • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
  • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
  • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
  • G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
  • G11B7/244—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only
  • G11B7/249—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only containing organometallic compounds
• • G—PHYSICS
  • G11—INFORMATION STORAGE
  • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
  • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
  • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
  • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
  • G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
  • G11B7/254—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of protective topcoat layers
• • G—PHYSICS
  • G11—INFORMATION STORAGE
  • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
  • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
  • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
  • G11B7/26—Apparatus or processes specially adapted for the manufacture of record carriers
• • G—PHYSICS
  • G11—INFORMATION STORAGE
  • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
  • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
  • G11B7/007—Arrangement of the information on the record carrier, e.g. form of tracks, actual track shape, e.g. wobbled, or cross-section, e.g. v-shaped; Sequential information structures, e.g. sectoring or header formats within a track

Definitions

• Optical data carrier containing a light-absorbing compound with several chromophoric centers in the information layer
• the invention relates to a write-once optical data carrier which contains a light-absorbing compound in the information layer with at least two identical or different chromophoric centers, as well as a process for its production and the application of the above-mentioned dyes to a polymer substrate, in particular polycarbonate, by spin coating or vapor deposition.
• the write-once optical data carriers using special light-absorbing substances or their mixtures are particularly suitable for use in high-density writable optical data storage devices that work with blue laser diodes, in particular Ga ⁇ or SHG laser diodes (360 - 460 nm) and / or for use with DVD-R or CD-R discs that work with red (635 - 660 nm) or infrared (780 - 830 nm) laser diodes.
• the next generation of optical data storage media - the DVD - is currently being launched on the market.
• the storage density can be increased by using shorter-wave laser radiation (635 to 660 nm) and a higher numerical aperture ⁇ A.
• the recordable format in this case is the DVD-R.
• the spot size scales with the laser wavelength ⁇ / ⁇ A.
• NA is the numerical aperture of the objective lens used.
• the aim should be to use the smallest possible wavelength ⁇ . 390 nm are currently possible on the basis of semiconductor laser diodes.
• the 780 nm wavelength of the CD-R lies at the foot of the long-wave flank of the absorption peak of the dye
• the red wavelength 635 nm and 650 nm of the DVD-R lies at the foot of the short-wave flank of the absorption peak of the dye.
• the recordable information layer made of light-absorbing organic substances must be as amorphous as possible
• the amorphous layer of light-absorbing substances should preferably have a high heat resistance, since otherwise further layers of organic or inorganic material, which are applied to the light-absorbing information layer by sputtering or vapor deposition, are diffused by diffusion Form interfaces and thus adversely affect reflectivity.
• a light-absorbing substance with too low heat resistance at the interface to a polymer carrier can diffuse in it and in turn adversely affect the reflectivity.
• An excessively high vapor pressure of a light-absorbing substance can sublimate the above-mentioned sputtering or vapor deposition of further layers in a high vacuum and thus reduce the desired layer thickness. This in turn leads to a negative influence on the reflectivity.
• the object of the invention is accordingly to provide suitable compounds which meet the high requirements (such as light stability, favorable signal-to-noise ratio, damage-free application to the substrate material, etc.) for use in the information layer in a write-once optical data carrier, in particular for high-density writable optical media Data storage formats in one
• the invention therefore relates to an optical data carrier, comprising a preferably transparent substrate, possibly already coated with one or more reflection layers, on the surface of which an information layer which can be written on with light, optionally one or more reflection layers and optionally a protective layer or a further substrate or a cover - Layer are applied, which can be written and read with blue, red or infrared light, preferably laser light, the information layer containing a light-absorbing compound and optionally a binder, characterized in that the light-absorbing compound is at least two of the same or has different chromophoric centers and has at least one absorption maximum in the range from 340 to 820 nm.
• chromophoric center is understood to mean a molecular residue of the light-absorbing compound which has an absorption maximum in the range from 340 to 820 nm. This residue is preferably monovalent.
• Those light-absorbing compounds are preferred which have an absorption maximum ⁇ max ⁇ in the range from 340 to 410 nm or an absorption maximum ⁇ max in the range from 400 to 650 nm or an absorption maximum ⁇ ma 3 in the range 630 to 820 nm, the wavelength ⁇ / 2 , in which the absorbance in the long-wave flank of the absorption maximum of wavelength ⁇ maxl , ⁇ max or ⁇ max3 or the extinction in the short-wave flank of the absorption maximum
• Wavelength ⁇ max 2 or ⁇ ma 3 is half the extinction value at ⁇ maxl , ⁇ max2 or ⁇ m ax3, and the wavelength where the extinction in the long-wave flank of the absorption maximum of wavelength ⁇ max ⁇ , ⁇ max2 or ⁇ maX3 or the extinction in the short-wave flank of the absorption maximum of wavelength ⁇ max2 or ⁇ ma 3 is one-tenth of the extinction value at ⁇ maxl , ⁇ max or ⁇ max3 , preferably not more than 80 nm apart.
• the physical characterization of the light-absorbing compound also applies to the chromophoric centers. That In a preferred embodiment, the shape and position of the absorption bands apply equally to the light-absorbing compound and to the chromophoric center.
• the light-absorbing compound should preferably be thermally changeable.
• the thermal change preferably takes place at a temperature ⁇ 600 ° C., particularly preferably at a temperature ⁇ 400 ° C., very particularly preferably at one
• Such a change can, for example, be a decomposition or chemical change in the chromophoric center of the light absorbing compound.
• the absorption maximum ⁇ ma ⁇ i of the light-absorbing compound is preferably in the range 340 to 410 nm
• Such a light-absorbing compound preferably has no longer-wave maximum ⁇ ma up to a wavelength of 500 nm, particularly preferably 550 nm, very particularly preferably 600 nm.
• ⁇ j / 2 and ⁇ ⁇ no are preferably not more than 40 nm apart, particularly preferably not more than 30 nm apart, very particularly preferably not more than 10 nm apart.
• the absorption maximum ⁇ max of the light-absorbing compound (s) is in the range from 420 to 550 nm, preferably 410 to 510 nm, in particular 420 to 510 nm, particularly preferably 430 to 500 nm, the wavelength ⁇ / 2 , at which the extinction in the short-wave flank of the absorption maximum of wavelength ⁇ max is half the extinction value at ⁇ max , and the wavelength ⁇ / 10 , at which the extinction in the short-wave flank of the absorption maximum of wavelength ⁇ max2 is one tenth of the Extinction value at ⁇ max is not more than 50 nm apart.
• Such a light-absorbing compound preferably does not have a shorter-wave maximum ⁇ max ⁇ up to a wavelength of 350 nm, particularly preferably 320 nm, very particularly preferably 290 nm.
• ⁇ 2 and ⁇ ⁇ 0 are preferably not more than 40 nm apart, particularly preferably not more than 30 nm apart, very particularly preferably not more than 20 nm apart.
• the absorption maximum ⁇ ma ⁇ 2 of the light-absorbing compound (s) is in the range from 500 to 650 nm, preferably 530 to 630 nm, in particular 550 to 620 nm, particularly preferably 580 to 610 nm, the wavelength ⁇ j / 2 , at which the extinction in the long-wave flank of the absorption maximum of wavelength ⁇ ma 2 is half the extinction value at ⁇ max , and the wavelength ⁇ o, at which the extinction in the long-wave flank of the absorption maximum of wavelength ⁇ max2 is one tenth of the extinction value at ⁇ max , must not be more than 50 nm apart.
• Such a connection preferably has no longer-wavelength maximum ⁇ maX 3 up to a wavelength of 750 nm, particularly preferably 800 nm, very particularly preferably 850 nm.
• These light-absorbing compound (s) ⁇ / 2 and ⁇ o, as defined above, are preferably not more than 40 nm apart, more preferably not more than 30 nm apart, very particularly preferably not more than 10 nm apart.
• the absorption maximum ⁇ ma ⁇ 3 of the light-absorbing compound (s) is in the range 630 to 800 nm, preferably 650 to 770 nm, in particular 670 to 750 nm, particularly preferably 680 to 720 nm, the wavelength where the absorbance in the short-wave
• Flank of the absorption maximum of the wavelength ⁇ ma 3 is half of the extinction value at ⁇ ma 3
• the wavelength ⁇ mo, at which the extinction in the short-wave flank of the absorption maximum of the wavelength ⁇ maX3 is one tenth of the extinction value at ⁇ ma 3 is no further than 50 nm apart.
• Such a connection preferably has a wavelength of up to 600 nm, particularly preferably 550 nm, very particularly preferably 500 nm, no shorter-wave maximum ⁇ max2 .
• These light-absorbing compound (s) ⁇ 2 and ⁇ y ⁇ o, as defined above, are preferably not more than 40 nm, particularly preferably not more than
• the absorption maximum ⁇ max3 of the light-absorbing compound (s) is in the range from 650 to 810 nm, preferably 660 to 790 nm, in particular 670 to 760 nm, particularly preferably 680 to
• wavelength ⁇ j / at which the absorbance in the long-wave flank of the absorption maximum of wavelength ⁇ max3 is half the absorbance value at ⁇ ma ⁇ 3
• wavelength ⁇ y ⁇ at which the absorbance in the long-wave flank of the absorption maximum the wavelength ⁇ max3 is one tenth of the extinction value at ⁇ ma ⁇ 3 , preferably not more than 50 nm apart.
• ⁇ / 2 and ⁇ y ⁇ o are preferably not more than 40 nm apart, particularly preferably not more than 30 nm apart, very particularly preferably not more than 10 nm apart.
• the light-absorbing compounds preferably have a molar extinction coefficient ⁇ > 10,000 1 / mol cm, preferably> 15,000 1 / mol cm, particularly preferably> 20,000 1 / mol cm, very particularly preferably> 25,000 l / mol cm, in particular> 30,000 l / mol cm, preferably> 40,000 l / mol cm.
• the light-absorbing compounds can be used, for example, as polymers, such as
• Homo-, co- or graft polymers dendrimers or in another form.
• Linear homopolymers are preferred, the repeating units of which carry the chromophoric centers.
• Such polymers of the formula (I) are particularly preferred.
• light-absorbing compounds in dendrimeric form the chromophoric centers preferably being located at the ends of a dendrimeric base body.
• Dendrimers of the formula (II) are particularly preferred.
• light-absorbing compounds in the form of so-called side chain polymers, on which the chromophoric centers are preferably in a more suitable manner
• a compound of the formula is preferred as the light-absorbing compound in the information layer of an optical data carrier
• the polymer having a degree of polymerization of 2 to 1000
• F 1 represents a mono valentes chromophoric center
• F 2 represents a bivalent chromophoric center
• B stands for a bivalent bridge -B l - or - (B 2 F l ) - or - (B 3 F 1 2 ) -,
• B 2 is a trivalent and B 3 is a quarter-valued remainder
• S represents a bivalent spacer group
• n stands for an integer from 0 to 1000
• k represents the number 3-2 1 or 4-2 1 ,
• 1 represents an integer from 0 to 6.
• Preferred light-absorbing compounds are those of the formulas (I) and (II)
• B 2 stands for -Q ⁇ 2 -Q 2 -
• p represents an integer from 1 to 12
• q, r, s and t independently represent an integer from 0 to 12, u represents an integer from 2 to 4,
• R 1 for hydrogen, C to C 2 alkyl, C 3 - to Cio-cycloalkyl, C 2 - to C 12 -
• R 2 to R 4 and R 6 independently of one another are hydrogen, Ci to C 1-4 alkyl, C 3 to do cycloalkyl, C 2 to C 12 alkenyl, C 6 to C 10 aryl,
• R 5 represents methyl or ethyl
• N is preferably an integer from 0 to 10, particularly preferably from 0 to 2, very particularly preferably from 0.
• Preferably 1 is an integer from 0 to 3, particularly preferably from 0 to 1.
• Preferred polymers with radicals of the formula (III) as light-absorbing compounds are those in which the polymer chain is based on the same or different structural elements K and
• K for a structural element of a polyacrylate, methacrylate, acrylamide, methacrylamide, siloxane, ⁇ -oxirane, ether, ether ids, urethane,
• Polyacrylates, methacrylates and esters are preferred. Also preferred are copolymers containing acrylate or methacrylate and acrylamide units.
• R represents hydrogen or methyl
• R represents hydrogen or methyl and the yesterday (*) bond leads to the bivalent spacer group S.
• a degree of polymerization of 2 to 100 is preferred, particularly preferably 2 to 20.
• the chromophoric centers of the light-absorbing compounds can contain, for example, residues of the following structure types (cf., for example, G. Ebner and D. Schulz, textile dyeing and coloring, Springer-Verlag, Berlin Heidelberg, 1989; H. Zollinger, Color Chemistry, VCH Verlagsgesellschaft mbH Weinheim, 1991) be:
• Azo dyes anthraquinone dyes, indigoid dyes, polymethine dyes,
• Arylcarbonium dyes phthalocyanine dyes, nitro dyes, perylenes, coumarins, formazans, metal complexes, in particular
• hetero optionally bridged (hetero) -cinnamic acid derivatives, (hetero) stilbenes, coumarins, methines, cyanines, hemicyanines, neutromethines (merocyanines), null methines,
• Preferred light-absorbing compounds with an absorption maximum ⁇ max ⁇ in the range 340 to 410 nm are, for example, those of the following formulas.
• Corresponding optical data memories with these connections in the information layer can be read and written with blue or red light, in particular laser light:
• Ar 101 and Ar 102 independently of one another are C 6 to C 10 aryl or the residue of a five- or six-membered aromatic, quasi-aromatic or partially hydrogenated heterocyclic ring which can be benzylated or naphthanellated and / or substituted by nonionic radicals,
• Y rlOl and Y r! 02 independently of one another represent N or C-R 101 or
• R 101 and R 104 independently of one another represent hydrogen, C ⁇ - to -C 6 alkyl, cyano, carboxylic acid, C ⁇ - to C 6 alkoxycarbonyl, Ci to C 16 alkanoyl or Ar 102 or R 101 for a bridge Ar 101 stands, R and R independently of one another are cyano, nitro, carboxylic acid, Ci to -C 6 alkoxycarbonyl, aminocarbonyl or d to C 6 alkanoyl or R 102 is hydrogen, halogen, Ci to d 6 alkyl or a radical of the formula
• R 103 is Ar 102 , CH 2 -COOalkyl or P (O) (OC, - to C 12 -alkyl) 2 or Ci- to -C 6 -alkyl or R 102 ; R 103 together with the carbon atom connecting them represent a five- or six-membered carbocyclic or aromatic, quasi-aromatic or partially hydrogenated heterocyclic ring which can be benzylated or naphthanellated and / or substituted by nonionic radicals, or R 103 is a bridge to Ar 101 or ring A 101 forms the one
• R 100 is hydrogen, C, - to C 16 alkyl, C 7 - to -C 6 aralkyl or R 101 or
• NR 100 R 100 represents pyrrolidino, piperidino or morpholino or
• R 100 and R 104 together represent a -CH 2 -CH 2 - or -CH 2 -CH 2 -CH 2 - bridge,
• X 101 , X 102 , X 103 , X 104 , X 106 , X 109 and X 110 independently of one another for O, S, or N-
• R 100 stand or X 102 , X 104 or X 106 additionally stand for CH or CR 100 R 100 ,
• a 101 , B 101 , C 101 , F 101 , G 101 and H 101 independently of one another represent a five- or six-membered aromatic, quasi-aromatic or partially hydrogenated heterocyclic ring which can be benzylated or naphthanellated and / or substituted by nonionic radicals,
• X 105 and X 108 independently of one another represent N,
• Ar 103 and Ar 104 independently of one another represent 2-hydroxyphenyl radicals which can be benzanellated and / or substituted by hydroxy, C 1 -C 16 -alkoxy or C 6 -dis aryloxy,
• R 108 for d- to Ci6-alkyl, CHO, CN, CO-d- to C 8 -alkyl, CO-C 6 - to C ⁇ 0 -aryl or CH C (CO-C to C 8 -alkyl) -CH 2 -CO-d- to C 8 -alkyl, R 109 represents hydroxy or d- to C 16 alkoxy,
• R 112 represents hydrogen, d- to C 16 -alkyl or cyano
• R 1 13 is hydrogen, cyano, d- to C 4 -alkoxycarbonyl, C 6 to C 10 -aryl, thien-2-yl, pyrid-2- or - -yl, pyrazol-1-yl or 1,2, 4-triazol-l- or -4-yl, which can be benzylated or naphthanellated and / or substituted by nonionic radicals,
• R 1 14 is hydrogen, C ⁇ d- to 6 alkoxy, l, 2,3-triazol-2-yl, which may be substituted by nonionic radicals, CJ to dö alkanoylamino,
• Ci Ci to C 8 alkanesulfonylamino or C 6 to C 10 arylsulfonylamino
• Ar 105 and Ar 106 independently of one another are C 6 - to Cio-aryl or the residue of a five- or six-membered aromatic, quasi-aromatic or partially hydrogenated heterocyclic ring which is benzylated or naphthanellated and / or substituted by nonionic radicals and / or by sulfo can,
• a, b and c independently of one another represent an integer from 0 to 2
• E 103 represents N, CH, C-CH 3 or C-CN, R 115 and R 1 16 independently of one another represent hydrogen or C 1 -C 6 -alkyl,
• R 1 17 and R 1 18 independently of one another are hydrogen, C 1 -C 6 -alkyl, cyano or C 1 -C 16 -alkoxycarbonyl,
• R 119 is hydrogen, d- to C 16 -alkyl, d- to C 16 -alkoxy or in each case 2
• R 1 'of a thiophene ring represent a bivalent radical of the formula -O-CH 2 -CH 2 -O-,
• Y 103 and Y 104 independently of one another represent O or N-CN
• R 120 to R 123 independently of one another are hydrogen, d- to C 16 -alkyl, d- to Ci 6 -alkoxy, cyano, d- to C 16 -alkoxycarbonyl, halogen, Ar 101 ,
• R 124 represents Ci to C 16 alkyl, d to C 6 alkoxy, cyano, d to Ci 6 alkoxy carbonyl, carboxylic acid, d to C 16 alkylaminocarbonyl or Ci to C 16 dialkylaminocarbonyl,
• R 125 and R 126 independently of one another represent hydrogen, d- to C 1-4 -alkyl, C to C 6 -alkoxy, cyano, Ci- to dö-alkoxycarbonyl, hydroxy, carboxylic acid or C 6 - do-aryloxy,
• e, f and g independently represent an integer from 1 to 4, where if e, f or g> 1, the radicals can be different, X 111 represents N or C-Ar 102 ,
• R 127 represents hydrogen, C 1 -C 6 -alkyl or C 6 - cio-aryl
• R and R independently of one another are hydrogen, d- to C] 6- alkyl, C 6 -cio-aryl or C - to -CC 5 aralkyl or
• NR 128 R 129 stands for Mo ⁇ holino, Piperidino or Pyrrolidino,
• R 130 represents Ci to C 16 alkyl, C 7 to C 5 aralkyl or Ar 1 ,
• R 131 and R 132 independently of one another for hydrogen, Ci- to -C 6 alkyl, d- to
• Nonionic radicals are Ci to C4 alkyl, Ci to C 4 alkoxy, halogen, cyano, nitro, Ci to C 4 alkoxycarbonyl, Ci to C 4 alkylthio, d- to C 4 alkanoylamino, benzoylamino , Mono- or Di-Cj to C 4 alkylamino.
• Alkyl, alkoxy, aryl and heterocych residues can optionally carry further residues such as alkyl, halogen, nitro, cyano, CO-NH 2 , alkoxy, trialkylsilyl, trialkylsiloxy or phenyl, the alkyl and alkoxy residues can be straight-chain or branched ,
• the alkyl radicals can be partially or perhalogenated, the alkyl and alkoxy radicals can be ethoxylated or propoxylated or silylated, neighboring
• Alkyl and / or alkoxy residues on aryl or heterocych residues can jointly form a three- or four-membered bridge and the heterocych residues can be fused to benzene and / or quaternized.
• Ar 101 and Ar 102 independently of one another for phenyl, naphthyl, benzthiazol-2-yl,
• Dimethylindolen-2-yl stand by methyl, ethyl, propyl, butyl, methoxy, ethoxy, propoxy, butoxy, chlorine, bromine, iodine, cyano, nitro, methoxycarbonyl, ethoxycarbonyl, methylthio, acetylamino, propionylamino, butanoylamino, benzoylamino, dimethylamino , Diethylamino, Dipropylamino or Dibutylamino can be substituted,
• Y 101 and Y 102 independently of one another represent N or CR 101 or
• R 101 and R 104 independently of one another represent hydrogen, methyl, ethyl, propyl, butyl, cyano, carboxylic acid, methoxycarbonyl, ethoxycarbonyl, acetyl, propionyl or Ar 102 or Ar 101 and R 101 together represent a ring of the formula
• R 102 , R 103 and R 105 independently of one another represent cyano, carboxylic acid, methoxycarbonyl, ethoxycarbonyl, propoxycarbonyl, butoxycarbonyl, methoxyethoxycarbonyl, acetyl, propionyl or butanoyl or R 102 represents hydrogen, or a radical of the formula
• R 103 stands for Ar 102 or R 105 stands for Ar 101 or R 102 ; R 103 or R 104 ; R 105 together with the connecting carbon atom for a ring of the formulas
• R 103 for a -CH 2 -, -C (CH 3 ) 2 -, -O-, -NH-, -N (CH 3 ) -, -N (C 2 H 5 ) -, -N (COCH 3 ) -, N (COC 4 H 9 ) - or -N (COC 6 H 5 ) bridge which attacks in the 2 position (based on the substitution site) of Ar 101 or ring A 101 ,
• R 100 represents hydrogen, methyl, ethyl, propyl, butyl or benzyl or
• NR, 100 ⁇ R> 100 represents pyrrolidino, morpholino or piperidino or
• R .100 and R, 104 together represent a -CH -CH 2 bridge or
• R 100 in formula (CVII) or (CXIII) represent a -CH 2 -CH 2 - or -CH 2 -CH 2 - CH 2 bridge
• a 101, T BJ IOI and G .101 independently of one another for benzthiazol-2-ylidene, benzoxazol-2-ylidene, benzimidazol-2-ylidene, thiazol-2-ylidene, thiazolin-2-ylidene, pyrrolin-2-ylidene, isothiazole -3-ylidene, imidazol-2-ylidene, 1,3,4-thiadiazol-2-ylidene, l, 3,4-triazol-2-ylidene, pyridin-2- or 4-ylidene, quinolin-2- or 4 -ylidene, pyrrole-2- or -3-ylidene, thiophene-2- or -3-ylidene, furan-2- or -3-ylidene, indole-2- or -3-ylidene, Benzothiophene-2-ylidene, benzofuran-2-ylidene
• Methylthio, acetylamino, propionylamino, butanoylamino or benzoylamino can be substituted
• C 101 and F 101 independently of one another for benzthiazol-2-yl, benzoxazol-2-yl, benzimidazol-2-yl, thiazol-2-yl, thiazolin-2-yl, pyrrolin-2-yl,
• Isothiazol-3-yl imidazol-2-yl, l, 3,4-thiadiazol-2-yl, l, 3,4-triazol-2-yl, 2- or 4-pyridyl, 2- or 4-quinolyl, Pyrrol-2- or -3-yl, thiophene-2- or -3-yl, furan-2- or -3-yl, indol-2- or -3-yl, benzothiophene-2-yl, benzofuran-2- yl or 3,3-dimethylindolen-2-yl, which are represented by methyl, ethyl, propyl, butyl, methoxy, ethoxy,
• X 101 , X 102 , X 103 , X 104 , X 106 , X 109 and X 110 independently of one another represent O, S or NR 100 and X 102 , X 104 or X 106 additionally represent CH or CR 100 R 100 ,
• X 105 and X 108 independently of one another represent N,
• X 107 stands for N or N + -R 100 An
• Ar 103 and Ar 104 independently of one another represent 2-hydroxyphenyl radicals which can be substituted by hydroxy, methoxy, ethoxy, propoxy, butoxy or phenoxy,
• R 108 represents methyl, ethyl, propyl, butyl, CHO, CN, acetyl, propionyl or benzoyl,
• R 109 represents hydroxy, methoxy, ethoxy, propoxy or butoxy
• R 1 ' 2 represents hydrogen or methyl
• R 1 13 for hydrogen, cyano, methoxycarbonyl, ethoxycarbonyl, phenyl, thien-2-yl, pyrid-2- or -4-yl, pyrazol-1-yl or 1,2,4-triazoI-l- or -4- yl stands, which can be substituted by methyl, methoxy or chlorine,
• R 1 14 represents hydrogen, methoxy, ethoxy, propoxy, butoxy, l, 2,3-triazol-2-yl, which can be substituted by methyl and / or phenyl,
• Ar 105 and Ar 106 independently of one another for phenyl, benzthiazol-2-yl, benzoxazol-2-yl, benzimidazol-2-yl, thiazol-2-yl, thiazolin-2-yl, pyrrolin-2-yl, isothiazol-3- yl, imidazol-2-yl, l, 3,4-triazol-2-yl, 2- or 4-pyridyl, 2- or 4-quinolyl, thiophene-2- or -3-yl, furan-2- or - 3-yl, Benzothiophen-2-yl or Benzofuran-2-yl, which can be substituted by methyl, ethyl, propyl, butyl, methoxy, ethoxy, propoxy, butoxy, chlorine, bromine, iodine, cyano, nitro, methoxycarbonyl, ethoxycarbonyl or sulfo,
• a, b and c independently of one another represent an integer from 0 to 1,
• E 103 represents N or C-CN
• R 115 and R 116 independently of one another represent hydrogen, methyl or ethyl
• R 1 17 and R 118 independently of one another represent hydrogen, methyl, ethyl, propyl, butyl, cyano, methoxycarbonyl or ethoxycarbonyl,
• R 1 19 represents hydrogen, methyl, methoxy, ethoxy or in each case 2 radicals R 119 of a thiophene ring represent a bivalent radical of the formula -O-CH 2 CH 2 -O-,
• Y 103 and Y 104 independently of one another represent O or N-CN
• R 120 to R 123 independently of one another are hydrogen, methyl, ethyl, propyl, butyl, methoxy, ethoxy, propoxy, butoxy, cyano, methoxycarbonyl, ethoxycarbonyl, chlorine, bromine, or
• R 124 for methyl, ethyl, propyl, butyl, methoxy, ethoxy, propoxy, butoxy,
• Cyano, methoxycarbonyl or ethoxycarbonyl, R 125 and R 126 independently of one another represent hydrogen, methyl, ethyl, propyl, butyl, methoxy, ethoxy, propoxy, butoxy, cyano, methoxycarbonyl, ethoxycarbonyl or hydroxy, at least one of the radicals R being in ring position 1 or 3 and methoxy, Means ethoxy, propoxy or butoxy,
• e, fund g independently of one another represent an integer from 1 to 2, where if e, f or g> 1, the radicals can be different,
• X 1 11 represents N or C-Ar 1 , 0 ⁇ 2,
• R 1 1 2 ⁇ 7 represents hydrogen, methyl, ethyl, propyl, butyl or phenyl
• R and R independently of one another are hydrogen, methyl, ethyl, propyl, butyl,
• NR 128 R 129 represents morpholino, piperidino or pyrrolidino
• R 131 and R 132 independently of one another for hydrogen, methyl, ethyl, propyl, butyl,
• M 300 stands for 2 H atoms, Al, Si, Ge, Zn, Mg or Ti TM, where M 300 in
• Si, Ge or Ti TM also carries one or two further substituents or ligands R 313 and / or R 314 which are relative to the
• Phthalocyanine plane are arranged axially, R, 306 to R, 309 independently of one another represent methyl, ethyl, propyl, butyl, methoxy or chlorine,
• w to z independently of one another represent an integer from 0 to 4,
• R 306 to R 309 , M 300 and w to z may additionally have the meaning defined below,
• Ar "1 1 0 U 6 0 and the rings A 1'0 U 1 1 to G .1 1 0 U 1 1 can be substituted via R 3 j 0 ⁇ 6 o to R, 3 j 0 ⁇ 9 y , R , 313 or R, 314. In this case, these residues stand for a direct bond.
• Preferred light-absorbing compounds with an absorption maximum ⁇ max2 in the range 400 to 650 nm are, for example, those of the following formulas:
• Corresponding optical data memories with these connections in the information layer can be read and written with blue or red light, in particular blue or red laser light.
• Ar 201 , Ar 202 , Ar 204 Ar 205 and Ar 206 independently of one another are C 6 - to C ] 0 -aryl or the residue of a five- or six-membered aromatic, quasi-aromatic or partially hydrogenated heterocyclic ring which is benzylated or naphthanellated and / or can be substituted by nonionic radicals or sulfo,
• Ar stands for the bifunctional radical of a C 6 to Cio aromatic or the bifunctional radical of a five- or six-membered aromatic, quasi-aromatic or partially hydrogenated heterocyclic ring which can be benzylated or naphthanellated and / or substituted by nonionic radicals or sulfo, where two such bifunctional residues can be connected via a bifunctional bridge,
• Y 201 stands for N or CR 201 ,
• R 201 is hydrogen, CJ to C 16 - alkyl, cyano, carboxylic acid, C ⁇ - Cj to 6 - alkoxycarbonyl, Ci to C 16 alkanoyl or Ar 202, or for a
• R and R independently of one another represent cyano, carboxylic acid, Ci to C 16 alkoxycarbonyl, aminocarbonyl or Ci to C 16 alkanoyl or R 202 represents hydrogen, halogen or a radical of the formula
• R 203 stands for Ar 202 , CH 2 -COOalkyl or P (O) (O-Cj to C 12 alkyl) 2 or Ci to C 16 alkyl or R; R together with the one connecting them C atom represents a five- or six-membered carbocyclic or aromatic, quasi-aromatic or partially hydrogenated heterocyclic ring which can be benzylated or naphthanellated and / or substituted by nonionic radicals,
• o 1 or 2
• R 204 represents hydrogen, d to C 6 alkyl or C 7 to C 6 aralkyl or a bridge to Ar 201 or Ar 202 or E 201 or Ar 205 or E 207 or
• NR, 204r R> 204 represents pyrrolidino, piperidino or morpholino
• X 201 , X 202 , X 204 and X 206 independently of one another represent O, S or NR 200 and X 202 , X 204 and X 206 additionally represent CH or CR 200 R 200 ,
• a 201 , B 201 , C 201 and J 201 independently of one another represent a five- or six-membered aromatic, quasi-aromatic or partially hydrogenated heterocyclic ring which can be benzylated or naphthanellated and / or substituted by nonionic radicals, Fl1 fl ⁇
• R 200 represents hydrogen, C r to C 6 alkyl or C 7 to C 6 aralkyl or forms a ring to E 202 , E 203 , E 205 or E 206 ,
• radicals R can form a two, three or four-membered bridge which contain heteroatoms and / or can be substituted and / or benzanellated by nonionic radicals,
• R 206 represents hydrogen, cyano or C i - to C 4 -alkyl-SO 2 -,
• R 207 represents hydrogen, cyano, Ci to C 4 alkoxycarbonyl or Ar 201 ,
• R 208 represents NR 222 R 223 , piperidino, morpholino or pyrrolidino,
• R 213 , R 218 , R 219 , R 222 and R 223 independently of one another represent hydrogen, C to d 6 -alkyl, C 7 - to C 16 -aralkyl or C 6 - to cio-aryl,
• Y 202 and Y 204 independently of one another stand for OR 222 , SR 222 or NR 222 R 223 ,
• Y 203 and Y 205 independently of one another represent O, S or N + R 222 R 223 An " , Is at 'an anion,
• h and i independently of one another represent an integer from 0 to 3,
• R 21 ' represents hydrogen, C 1 -C 4 -alkyl or Ar 201 ,
• Y 210 and Y 211 independently of one another represent O, S or N-CN,
• X 208 and X 209 independently of one another represent O, S or NR 213 ,
• R 212 for hydrogen, halogen, d to C 6 alkyl, C 7 to C 6 aralkyl or
• R 214 and R 215 independently of one another for hydrogen, Cj- to C 8 -alkyl, Cj- to C 8 -
• j and m independently of one another represent an integer from 1 to 4,
• D, E, G and H independently of one another for a five- or six-membered aromatic or quasi-aromatic carbocyclic or an aromatic, quasi-aromatic or partially hydrogenated hetero- are cyclic rings which can be benzylated or naphthanellated and / or substituted by nonionic radicals or sulfo,
• Y 206 and Y 207 independently of one another represent -O-, -NR 224 -, -CO-O-, -CO-NR 224 -, -SO 2 -O- or -SO 2 -NR 224 -,
• Y 208 , Y 209 and Y 210 independently of one another represent N or CH
• Y 21 1 represents O or -NR 224 ,
• R 224 for hydrogen, d- to C 16 -alkyl, cyano, d- to C ⁇ 6 -alkoxy carbonyl, Cr to C ⁇ 6 -alkanoyl, Cr to Ci 6 -alkylsulfonyl, C 6 - to Cio-aryl, C 6 - to C 10 arylcarbonyl or C 6 to do-arylsulfonyl,
• M 200 and M 201 independently of one another represent an at least divalent metal ion which can also carry further substituents and / or ligands, and M 2! can additionally represent two hydrogen atoms,
• F 201 represents a five- or six-membered aromatic, quasi-aromatic or partially hydrogenated heterocychic ring, the other
• R 220 and R 221 independently of one another for hydrogen, Cr to C 16 -alkyl, d- to
• X 210 represents N, CH, Ci-C ⁇ -alkyl, C-Ar 201 , C-Cl or CN (d-C 6 -alkyl) 2 ,
• Nonionic radicals are Cr to C 4 alkyl, Cj to C 4 alkoxy, halogen, cyano, nitro, Cj to C 4 alkoxycarbonyl, Cj to C 4 alkylthio, Cr to C 4 alkanoylamino, benzoylamino, mono - Or di-Cr to C 4 alkylamino.
• Alkyl, alkoxy, aryl and heterocych residues can optionally carry further residues such as alkyl, halogen, nitro, cyano, COOH, CO-NH 2 , alkoxy, trialkylsilyl, trialkylsiloxy, phenyl or SO 3 H, the alkyl and Alkoxy radicals can be straight-chain or branched, the alkyl radicals can be partially or perhalogenated, the alkyl and alkoxy radicals can be ethoxylated or propoxylated or silylated, adjacent alkyl and / or alkoxy radicals on aryl or heterocychic radicals can together form a three or four-membered bridge and the heterocych residues can be benzannelated and / or quaternized.
• the alkyl and Alkoxy radicals can be straight-chain or branched
• the alkyl radicals can be partially or perhalogenated
• the alkyl and alkoxy radicals can be e
• Light-absorbing compounds of the formulas (CCI) to (CCXXVI) and (CCIVa) are particularly preferred,
• Ar 201 , Ar 202 , Ar 204 , Ar 205 and Ar 206 independently of one another for phenyl, naphthyl, benzthiazol-2-yl, benzoxazol-2-yl, benzimidazol-2-yl, thiazol-2- or -5-yl, thiazoline -2-yl, pyrrolin-2-yl, isothiazol-3-yl, imidazol-2-yl, l, 3,4-thiadiazol-2-yl, l, 3,4-triazol-2-yl, 2- or 4-pyridyl, 2- or 4-quinolyl, pyrrol-2- or -3-yl, thiophene-2- or -3-yl, furan-2- or -3-yl, indol-2- or -3-yl , Benzothiophene-2-yl, benzofuran-2-yl or 3,3-dimethylindolen-2-yl, which are
• Y 201 stands for N or CR 201 ,
• R 201 for hydrogen, methyl, ethyl, propyl, butyl, cyano, carboxylic acid
• R 202 and R 203 independently of one another represent cyano, carboxylic acid, methoxycarbonyl, ethoxycarbonyl, propoxy carbonyl, butoxycarbonyl, methoxyethoxycarbonyl, acetyl, propionyl or butanoyl or R 202 represents hydrogen or a radical of the formula
• R 203 represents Ar 202 or R 202 ; R 203 together with the connecting carbon atom for a ring of the formulas
• R 204 represents hydrogen, methyl, ethyl, propyl, butyl, benzyl or
• Ar ⁇ -NR 204 or Ar 205 -NR 204 stands for a pyrrole, indole or carbazole ring attached via N, which is formed by methyl, ethyl, methoxy, ethoxy, propoxy, chlorine, bromine, iodine, cyano, nitro or Methoxycarbonyl can be substituted or
• Isothiazol-3-ylidene imidazol-2-ylidene, 1, 3,4-thiadiazol-2-ylidene, l, 3,4-triazol-2-ylidene, pyridin-2- or 4-ylidene, quinolin-2- or 4-ylidene, pyrrole-2- or -3-ylidene, thiophene-2- or -3-ylidene, furan-2- or -3-ylidene, indole-2- or -3-ylidene, benzothiophene-2-ylidene, Benzofuran-2-ylidene, 1,3-dithiol-2-ylidene, benzo-1,3-dithiol-2-ylidene or 3,3-dimethylindolen-2-ylidene, which are represented by methyl, ethyl, propyl, butyl, methoxy , Ethoxy, propoxy, butoxy, chlorine, bromine,
• Acetylamino, propionylamino, butanoylamino, benzoylamino, dimethylamino, diethylamino, dipropylamino, dibutylamino, methylbenzylamino, methylphenylamino, pyrrolidino or morpholino may be substituted
• X 201 , X 202 , X 204 and X 206 independently of one another represent O, S or NR 200 and X 202 , X 204 and X 206 additionally stand for CR 200 R 200 ,
• X and X independently of one another represent N, and
• R 200 represents hydrogen, methyl, ethyl, propyl, butyl or benzyl
• R 200 represents methyl, ethyl, propyl, butyl or benzyl
• R 201 ' represents hydrogen, methyl or cyano or two radicals
• R 206 represents cyano or methyl-SO 2 -
• R 207 represents hydrogen, cyano, Cr to C 4 -alkoxycarbonyl or Ar 201 ,
• R 208 represents NR 222 R 223 , piperidino, morpholino or pyrrolidino,
• R 213 , R 218 , R 219 , R 222 and R 223 independently of one another for hydrogen, methyl
• Butanoylamino, benzoylamino, COOH or SO 3 H can be substituted
• X 207 represents O, S or NR 222 ,
• Y 202 and Y 204 independently of one another represent NR 222 R 223 ,
• Y 203 and Y 205 independently of one another represent O or N + R 222 R 223 An " ,
• R 209 and R 210 independently of one another for hydrogen, methyl, ethyl, methoxy,
• a and b independently of one another represent an integer from 0 to 3, R 21 1 for hydrogen, methyl, ethyl, propyl, butyl, pentyl, hexyl or
• Phenyl which may be substituted by 1 to 3 radicals from the group hydroxyl, methyl, methoxy, chlorine, bromine, COOH, methoxycarbonyl, ethoxycarbonyl or SO 3 H,
• Y 210 and Y 21 'independently of one another represent O or N-CN
• X 208 and X 209 independently of one another represent O or NR 213 ,
• R 212 represents hydrogen or chlorine.
• R and R 215 independently of one another for hydrogen, methyl, ethyl, propyl, butyl,
• d and e independently of one another represent an integer from 1 to 3,
• D 201 and E 201 independently of one another for phenyl, naphthyl, pyrrole, indole, pyridine,
• Quinoline, pyrazole or pyrimidine which can be substituted by methyl, ethyl, propyl, butyl, methoxy, ethoxy, propoxy, butoxy, chlorine, bromine, cyano, nitro, hydroxy, NR 222 R 223 , acetylamino, propionylamino or benzoylamino,
• Y 206 and Y 207 independently of one another represent -O-, -NR 224 -, -CO-O- or-CO-NR 224 -,
• Y 210 represents N or CH
• R 224 represents hydrogen, methyl, formyl, acetyl, propionyl, methylsulfonyl or ethylsulfonyl,
• M 200 stands for Cu, Fe, Co, Ni, Mn or Zn,
• M 201 for 2 H atoms Cu 11 , Co 11 , Co m , Ni u , Zn, Mg, Cr, AI, Ca, Ba, In, Be,
• Si also carries one or two further substituents or ligands R 225 and / or R 226 which are arranged axially relative to the porphyrin ring plane,
• 99 ⁇ 99A R and R independently of one another for methyl, ethyl, phenyl, hydroxy, fluorine,
• Chlorine, bromine, methoxy, ethoxy, phenoxy, tolyloxy, cyano or O,
• R 204 represents hydrogen, methyl, ethyl, propyl, butyl, benzyl or
• w 4 represents a pyrrole, indole or carbazole ring which is bonded via N and which is formed by methyl, ethyl, methoxy, ethoxy, propoxy, chlorine, bromine, iodine, Cyano, nitro or methoxycarbonyl can be substituted, R> 220.
• R, 221 independently of one another for hydrogen, methoxy, ethoxy, propoxy, butoxy, cyano, methoxycarbonyl, chlorine, bromine, phenyl, dimethylamino, diethylamino, dipropylamino, dibutylamino, anilino or together for a bivalent radical of the formula
• X 210 represents N or CH
• Y 212 stands for NR 204 , N-Ar 201 or CR 202 R 203 ,
• -213 stands for NH-R 204 NH-Ar 201 or C " R 202 R 203 An ⁇ ,
• connection to the bridge B, the dentrimeric structure D or the spacer group S takes place via the radicals R 200 to R 224 or via the nonionic radicals with which Ar 201 to Ar 205 and the rings A 201 to H 201 can be substituted ,
• these residues stand for a direct bond.
• Preferred light-absorbing compounds with an absorption maximum ⁇ maX3 in the range 630 to 820 nm are those of the following formulas:
• Corresponding optical data memories with these connections in the information layer can be read and written with red or infrared light, in particular red or infrared laser light.
• Ar and Ar independently of one another represent C 6 -C 10 -aryl or the residue of a five- or six-membered aromatic, quasi-aromatic or partially hydrogenated heterocyclic ring which can be benzylated or naphthanellated and / or substituted by nonionic radicals or sulfo,
• Ar 303 represents the bifunctional radical of a C 6 to C 10 aromatic or the bifunctional radical of a five- or six-membered aromatic, quasi-aromatic or partially hydrogenated heterocyclic ring which can be benzylated or naphthanellated and / or substituted by nonionic radicals or sulfo, where two such bifunctional residues over one bifunctional
• E 301 stands for N, C-Ar 302 or IsT-Ar 302 An ' ,
• R 302 and R 303 independently of one another represent cyano, carboxylic acid, Cr to Cj 6 -alkoxycarbonyl, aminocarbonyl or Cr to C 16 -alkanoyl or R represents Ar 302 or R 302 ; R 303 together with the carbon atom connecting them represent a five- or six-membered carbocyclic or aromatic, quasi-aromatic or partially hydrogenated heterocyclic ring which can be benzylated or naphthanellated and / or substituted by nonionic or ionic radicals,
• X 301 , X 302 , X 304 and X 306 independently of one another for O, S or NR 300 and X 302 , X 304 and X 306 additionally for CR 300 R 300 ,
• a 301 , B 301 and C 301 independently of one another represent a five- or six-membered aromatic, quasi-aromatic or partially hydrogenated heterocyclic ring which can be benzylated or naphthanellated and / or substituted by nonionic radicals,
• X 303 and X 305 independently of one another represent N or (X 303 ) + -R 300 stands for O + or S + and / or X 305 -R 300 stands for O or S,
• R 300 represents hydrogen, Cr to -C 6 alkyl or C 7 - to C 16 aralkyl or one
• 7301 represents N or CR 301 .
• R 301 represents hydrogen, Cr to C ) 6 -alkyl, cyano, carboxylic acid, Cr to C 16 -alkoxycarbonyl, C ⁇ - to Q ö -alkanoyl or Ar or a bridge to R or Ar 303 ,
• v 1 or 2
• X 307 represents O, S or NR 311 ,
• R 311 and R 312 independently of one another represent hydrogen, Cr to C 16 alkyl, C 7 to C 6 aralkyl or C 6 to C 1 aryl,
• ⁇ 302 stands for NR 3'1 "1 D R3 J 1 1 2,
• Y 303 stands for CR 302 R 303 ,
• h and i independently of one another represent an integer from 0 to 3,
• w to z independently of one another represent an integer from 0 to 4, where w, x, y or z> 1
• R 306 , R 307 , R 308 or R 309 can have different meanings
• R 313 and R 314 independently of one another for C to C 6 alkoxy, C 6 to C 0 aryloxy,
• phthalocyanines of the formula (CCCIX) also mean the corresponding mono- to tetraza derivatives and their quaternary salts.
• Nonionic radicals are, for example, Cr to C 4 alkyl, Cr to C 4 alkoxy, halogen, cyano, nitro, Cr to C 4 alkoxycarbonyl, Cr to C alkylthio, Cr to C 4 -
• Alkanoylamino Benzoylamino, Mono- or Di-Cr to C 4 -alkylamino.
• Alkyl, alkoxy, aryl and heterocych residues can optionally further
• Residues such as alkyl, halogen, nitro, cyano, COOH, CO-NH 2 , alkoxy, trialkylsilyl, trialkylsiloxy, phenyl or SO 3 H
• the alkyl and alkoxy radicals can be straight-chain or branched
• the alkyl radicals can be partially or perhalogenated his
• the alkyl and alkoxy radicals can be ethoxylated or propoxylated or silylated
• adjacent alkyl and / or alkoxy radicals on aryl or heterocychic radicals can jointly form a three- or four-membered bridge and the heterocychic radicals can be benzene-fused and / or quaternized.
• Light-absorbing compounds of the formulas (CCCI) to (CCCIX) are particularly preferred,
• Ar 301 and Ar 302 independently of one another for phenyl, naphthyl, benzthiazol-2-yl, benzoxazol-2-yl, benzimidazol-2-yl, thiazol-2-yl, isothiazol-3-yl, imidazol-2-yl, l, 3,4-thiadiazol-2-yl, l, 3,4-triazol-2-yl, 2- or 4-pyridyl, 2- or 4-quinolyl, pyrrol-2- or -3-yl, thiophene-2- or -3-yl, furan-2- or -3-yl, indol-2- or -3-yl, benzothiophene-2-yl, benzofuran-2-yl, l, 2-dithiol-3-yl or 3, 3-Dimethylindolen-2-yl are those represented by methyl, ethyl, propyl, butyl, methoxy, ethoxy,
• Morpholine, COOH or SO 3 H can be substituted, and Ar 301 additionally for a ring of the formulas
• Ar _303 represents phenylene, naphthylene, thiazole-2,5-diyl, thiophene-2,5-diyl or furan-2,5-diyl, which is represented by methyl, ethyl, propyl, butyl, methoxy, ethoxy,
• Propoxy, butoxy, hydroxy, chlorine, bromine, iodine, cyano, nitro, methoxycarbonyl, ethoxycarbonyl, methylthio, acetylamino, propionylamino, butanoylamino or benzoylamino can be substituted,
• E 301 stands for N, C-Ar 302 or N + -Ar 302 An " ,
• R and R independently of one another are cyano, carboxylic acid, methoxycarbonyl, ethoxycarbonyl, propoxycarbonyl, butoxycarbonyl, methoxyethoxycarbonyl, Acetyl, propionyl or butanoyl or R 303 represents Ar 302 or R 302 ; R 303 together with the connecting carbon atom for a ring of the formulas
• E -303 to E: 309 independently of one another are C-R 310 or N, two adjacent elements E to E for a bivalent grouping of the formulas
• R, 310 for hydrogen, methyl, ethyl, cyano, chlorine, phenyl or a radical of the formula
• benzthiazol-2-ylidene benzoxazol-2-ylidene, benzimidazol-2-ylidene, thiazol-2-ylidene, isothiazol-3-ylidene, imidazol-2-ylidene, l, 3,4-thiadiazol-2-ylidene, 1, 3, 4-triazol-2-ylidene, pyridin-2- or 4-ylidene, quinolin-2- or 4-ylidene, pyrrole-2- or -3-ylidene, thiophene-2- or -3-ylidene, Furan-2- or -3-ylidene, indol-2- or -3-ylidene, benzothiophene-2-ylidene, benzofuran-2-ylidene, 1,3-dithiol-2-ylidene, benzo-1,3-dithiol- 2 -ylidene, l, 2-dithi
• Butyl, methoxy, ethoxy, propoxy, butoxy, chlorine, bromine, iodine, cyano, nitro, methoxycarbonyl, ethoxycarbonyl, methylthio, acetylamino, propionylamino, butanoylamino or benzoylamino can be substituted
• Isothiazol-3-yl imidazol-2-yl, l, 3,4-thiadiazol-2-yl, l, 3,4-triazol-2-yl, 2- or 4-pyridyl, 2- or 4-quinolyl, Pyrrylium-2- or -4-yl, thiopyrrylium-2- or -4-yl, indol-3-yl, benz [c, d] indol-2-yl or 3,3-dimethylindolen-2-yl, which are by methyl, ethyl, propyl, butyl, methoxy, ethoxy, propoxy, butoxy, chlorine, bromine, iodine, cyano, nitro, methoxycarbonyl, ethoxycarbonyl,
• Methylthio, acetylamino, propionylamino, butanoylamino or benzoylamino can be substituted
• X 301 , X 302 , X 304 and X 306 independently of one another for O, S or NR 300 and X 302 , X 304 and X 306 additionally for CR 300 R 300 ,
• X 303 and X 305 independently of one another stand for N or (X 303 ) + -R 300 stand for O + or S + and / or ⁇ 305 .
• R 300 stand for O or S
• R 300 represents hydrogen, methyl, ethyl, propyl, butyl or benzyl
• R 300 represents methyl, ethyl, propyl, butyl or benzyl
• Propoxy, butoxy, acetamino, propionylamino or methylsulfonylamino may be substituted and / or benzanellated,
• Y 301 stands for N or CR 301
• R 301 represents hydrogen, methyl, ethyl, cyano, carboxylic acid, methoxycarbonyl, ethoxycarbonyl, acetyl or propionyl,
• v 1 or 2
• X 307 represents O, S or NR 31 ,
• R 311 and R 312 independently of one another represent hydrogen, methyl, ethyl, propyl, butyl, pentyl, hexyl, benzyl, phenyl, which are substituted by one or more of the radicals
• Methoxy, ethoxy, propoxy, chlorine, bromine, dimethylamino or diethylamino can be substituted
• Y 302 stands for NR 31 'R 312 .
• ⁇ 30 3 represents C R 302 R 303 ,
• Plane of phthalocyanine rings are arranged axially
• R 306 to R 309 independently of one another are methyl, ethyl, propyl, butyl, pentyl, hexyl, methoxy, ethoxy, propoxy, butoxy, pentoxy, hexoxy, phenoxy, chlorine, bromine, -SO 3 H or SO 2 NR 3 II R 312 stands or two neighboring residues
• w to z independently of one another represent an integer from 0 to 4, where w, x, y or z> 1
• imidazolo or NR R which can be substituted by one or more of the radicals methoxy, ethoxy, propoxy, chlorine, bromine, dimethylamino or diethylamino,
• Examples of light-absorbing compounds which have at least two chromophoric centers as described above and which are suitable for the optical data carrier according to the invention are:
• the absorption spectra are preferably measured in solution.
• the light-absorbing compounds described guarantee a sufficiently high reflectivity (> 10%) of the optical data carrier in the blank state as well as a sufficiently high absorption for the thermal degradation of the information layer in the case of selective illumination with focused light, if the light wavelength is preferably in the range from 360 to 460 nm, 600 up to 680 nm or 750 to 820 nm.
• the contrast between written and unwritten points on the data carrier is realized by the change in reflectivity of the amplitude as well as the phase of the incident light by the optical properties of the information layer which have changed after thermal degradation.
• the invention further relates to a write-once optical data carrier containing a preferably transparent substrate, on the surface of which at least one information layer which can be written on with light, optionally a reflection layer and / or optionally a protective layer, is applied, which is coated with blue, red or infrared light, preferably laser light, can be described and read, the information layer containing at least one of the abovementioned light-absorbing compounds and, if appropriate, a binder, wetting agent, stabilizers, thinners and sensitizers and further constituents.
• the structure of the optical data carrier can be:
• the optical data storage device can carry further layers such as metal layers, dielectric layers and protective layers.
• Metals and dielectric layers serve u. a. to adjust the reflectivity and the heat balance.
• metals can be gold, silver, aluminum, etc. his.
• Dielectric layers are, for example, silicon dioxide and
• Protective layers are, for example photocurable lacquers, (pressure-sensitive) adhesive layers and protective films.
• Pressure-sensitive adhesive layers mainly consist of acrylic adhesives. Nitto Denko DA-8320 or DA-8310, disclosed in patent JP-A 11-273147, can be used for this purpose, for example.
• the optical data carrier has, for example, the following layer structure (cf.
• a transparent substrate (1) optionally a protective layer (2), an information layer (3), optionally a protective layer (4), optionally an adhesive layer (5), a cover layer (6).
• the structure of the optical data carrier can preferably:
• a transparent substrate (1) on the surface of which at least one information layer (3) which can be written on with light and which can be written on with light, preferably laser light, optionally a protective layer (4), optionally an adhesive layer (5), and a transparent cover layer (6) are applied.
• a transparent substrate (1) on the surface of which a protective layer (2), at least one information layer (3) which can be written on with light, preferably laser light, optionally an adhesive layer (5), and a transparent cover layer (6) are applied.
• a preferably transparent substrate (1) on the surface of which there is optionally a protective layer (2), at least one information layer (3) that can be written on with light, preferably laser light, and optionally one
• Protective layer (4) optionally an adhesive layer (5), and a transparent cover layer (6) are applied.
• a preferably transparent substrate (1) on the surface of which at least one item of information that can be written on with light, preferably laser light, tion layer (3), optionally an adhesive layer (5), and a transparent cover layer (6) are applied.
• the optical data carrier has, for example, the following layer structure (cf. FIG. 2): a preferably transparent substrate (11), an information layer
• the optical data carrier has, for example, the following layer structure (cf. FIG. 3): a preferably transparent substrate (21), an information layer
• the invention further relates to optical data carriers according to the invention described with blue, red or infrared light, in particular laser light.
• the invention also relates to the optical data storage media according to the invention after they have been described once with blue, red or infrared light, in particular laser light.
• the invention relates to the use of light-absorbing
• the information layer can also contain binders, wetting agents, stabilizers, thinners and sensitizers and further constituents.
• the substrates can be made of optically transparent plastics which, if necessary, have undergone a surface treatment.
• Preferred plastics are polycarbonates and polyacrylates, as well as polycycloolefins or polyolefins.
• the light-absorbing compound can also be used in a low concentration to protect the polymer substrate and stabilize it.
• the reflection layer can be made of any metal or metal alloy that is usually used for recordable optical data carriers. Suitable metals or metal alloys can be vapor-deposited and sputtered and contain e.g. Gold, silver, copper, aluminum and their alloys with each other or with other metals.
• the protective varnish over the reflective layer can consist of UV-curing acrylates.
• An intermediate layer that protects the reflection layer from oxidation can also be present.
• Mixtures of the above light absorbing compound can also be used.
• the invention further relates to a method for producing the optical data carrier according to the invention, which is characterized in that a preferably transparent substrate, which may have been previously provided with a reflection layer, with the light-absorbing compound in
• the coating of the substrate with the light-absorbing compound, optionally in combination with dyes, binders and / or solvents, is preferably carried out by spin coating.
• the light-absorbing compound is preferably dissolved with or without additives in a suitable solvent or solvent mixture, so that the UV absorber is 100 or less, for example 10 to 2 parts by weight to 100 parts by weight of solvent.
• the recordable information layer is then preferably metallized at reduced pressure by sputtering or vapor deposition (reflection layer) and possibly subsequently provided with a protective lacquer (protective layer) or another substrate or a covering layer.
• Multi-layer arrangements with partially transparent reflection layers are also possible.
• Solvents or solvent mixtures for coating with the light-absorbing compounds or their mixtures with additives and / or binders are selected on the one hand according to their solvency for the light-absorbing compound and the other additives and on the other hand according to a minimal influence on the substrate.
• Suitable solvents that have a minor influence on the substrate are, for example, alcohols, ethers, hydrocarbons, halogenated hydrocarbons, cellosolves, ketones. Examples of such
• Solvents are methanol, ethanol, propanol, 2,2,3,3-tetrafluoropropanol, butanol, diacetone alcohol, benzyl alcohol, tetrachloroethane, dichloromethane, diethyl ether, dipropyl ether, dibutyl ether, methyl tert-butyl ether, methyl cellosolve, ethyl cellosolve, l-methyl -2-propanol, methyl ethyl ketone, 4-hydroxy-4-methyl-2-pentanone, hexane, cyclohexane, ethylcyclohexane, octane, benzene, toluene, xylene.
• Preferred solvents are hydrocarbons and alcohols because they have the least influence on the substrate.
• Suitable additives for the recordable information layer are stabilizers, wetting agents, binders, thinners and sensitizers.
• Nitrosylsulfuric acid was added dropwise and the mixture was stirred at this temperature for 30 min.
• Solubility 2% in diacetone alcohol.
• the dye of the formula was analogous to Example 12 using the product from Example D and N-methyl-N-cyanoethylbenzaldehyde
• This film was subjected to a vacuum (pressure ⁇ 10 "6 mbar) at room temperature for 1 hour to simulate the stress during the sputtering of metallic or dielectric layers during the production of optical data carriers. After this treatment, the total layer thickness d after the vacuum treatment using the same method was evaluated 0 nm. That means the substance is completely sublimed.
• the substance was dissolved in tetrafluoropropanol (TFP) in a mass ratio of 1 part solid to 99 parts TFP.
• TFP tetrafluoropropanol
• This solution was spin-coated onto a quartz glass substrate and gave a transparent film.
• the evaluation of the transmission and reflection spectra resulted in a film thickness of 85 nm.
• This film was exposed to a vacuum (pressure ⁇ 10 "6 mbar) at room temperature for 1 hour in order to simulate the stress during the sputtering of metallic or dielectric layers during the production of optical data carriers. According to this
• the total layer thickness d after the vacuum treatment was 85 nm, evaluated using the same method. the substance has been completely preserved.
• Reflection spectra showed a film thickness of 90 nm.
• This film was subjected to a vacuum (pressure ⁇ 10 "6 mbar) at room temperature for 1 hour to simulate the stress during the sputtering of metallic or dielectric layers during the production of optical data carriers. After this treatment, the total layer thickness d after the vacuum treatment using the same method was evaluated 91 nm. That means the substance has been completely preserved.

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• 2001
  • 2001-03-28 DE DE10115227A patent/DE10115227A1/de not_active Withdrawn
• 2002
  • 2002-03-20 WO PCT/EP2002/003071 patent/WO2002086878A2/de not_active Ceased
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