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
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T428/00—Stock material or miscellaneous articles
  • Y10T428/21—Circular sheet or circular blank

Definitions

• Optical data carrier containing a triazacyanine dye in the information layer as a light-absorbing compound
• the invention relates to a write-once optical data carrier, which in the
• Information layer contains a triazacyanine dye as a light-absorbing compound, and a process for its preparation.
• the write-once optical data carriers using special light-absorbing substances or their mixtures are particularly suitable for use with high-density writable optical data storage devices that work with blue laser diodes, in particular GaN 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, as well as the application of the above-mentioned dyes to a polymer substrate, in particular polycarbonate
• 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 NA.
• the recordable format in this case is the DVD-R.
• the spot size scales with the laser wavelength ⁇ / 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.
• This concept is described in JP-A 02 557 335, JP-A 10 058 828, JP-A 06 336 086, JP-A 02 865 955, WO-A 09 917 284 and US-A 5 266 699 to the 450 nm range Working wavelength extended on the short-wave flank and the red and IR range on the long-wave flank of the absorption peak.
• 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 diffuse 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.
• the vapor pressure of a light-absorbing substance is too high, it can subhm in 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 connections 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 data storage formats in one
• the invention therefore relates to an optical data carrier, comprising a preferably transparent substrate, optionally 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 covering layer are applied, which can be written and read with blue or red light, preferably laser light, the information layer containing a light-absorbing compound and optionally a binder, characterized in that at least one triazacyanine dye is used as the light-absorbing compound.
• 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 a temperature ⁇ 300 ° C., in particular ⁇ 200 ° C.
• a change can be, for example, a decomposition or chemical change in the chromophoric center of the light-absorbing compound.
• a triazacyanin of the formula I is preferred
• X 1 and X 3 represent nitrogen or
• X 2 and X 4 independently of one another represent O, S, CH or NR 3 ,
• R, R and R independently of one another for C 6 -C 6 alkyl, C 3 - to C 6 alkenyl,
• the rings A and B together with X ⁇ , X ⁇ or X ⁇ , ⁇ 4 and the C atom bonded between them each independently represent a five- or six-membered aromatic or quasi-aromatic heterocyclic ring which contain 1 to 4 heteroatoms and / or benzyl or naphthane fused and / or substituted by nonionic radicals, and An "stands for an anion,
• nonionic radicals are C1 to C4 alkyl, C1 to C4 alkoxy, halogen, cyano, nitro, C1 to C4 alkoxycarbonyl, C1 to C4 alkylthio, C1 to C4 alkanoylamino, benzoylamino , Mono- or Di-C ⁇ - to C4-alkylamino in question.
• Alkyl, alkoxy, aryl and heterocyclic radicals can optionally carry further radicals such as alkyl, halogen, nitro, cyano, CO-NH2, alkoxy, trialkylsilyl, trialkylsiloxy or phenyl, 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, neighboring ones
• 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.
• Ring A of the formula is particularly preferably
• benzthiazol-2-yl benzoxazol-2-yl, benzimidazol-2-yl, thiazol-2-yl, isothiazol-3-yl, imidazol-2-yl, pyrazol-5-yl, l, 3,4-thiadiazole -2-yl, l, 2,4-thiadiazol-5-yl, 1,2,3-
• said rings may each by Ci to C6 alkyl, Ci to C 6 alkoxy, fluorine, chlorine, bromine, iodine, cyano, nitro, C to C 6 alkoxycarbonyl, Ci to C 6 alkylthio, Ci to C ⁇ acylamino, C 6 to Cio aryl, C 6 - to Cio-aryloxy, C 6 - to C10- Arylcarbonylamino, mono- or di-C to C 6 -alkylamino, Nd- to C 6 -alkyl-N- C 6 - to Cio-arylamino, pyrrohdino, morpholino or piperazino, and
• rings may each by Ci- to C 6 - alkyl, Ci to C 6 alkoxy, fluorine, chlorine, bromine, iodine, cyano, nitro, Ci to C6 - alkoxycarbonyl, CJ to C 6 alkylthio, C ⁇ - to C 6 acyla
• the triazacyanines are those of the formula
• R and R 2 independently of one another are Cp to C 6 alkyl, C 3 to C 6 alkenyl, C 5 to C 7 cycloalkyl or C 7 to C 6 aralkyl,
• X 5 represents N or CR 6 .
• X 6 represents N or CR 7 ,
• R 4 to R 7 independently of one another are hydrogen, Cp to C alkyl, Ci to C 4 -
• Ci 5 -aralkylamino N-Cp to C 4 -alkyl-NC 5 - to C ⁇ 7 -cyclo- alkylamino, N-Cp to C -alkyl-NC 6 - to Cio-arylamino, C 6 - to Ciö- Arylamino, Pyrrohdino, Piperidino, Piperazino or Morpholino stand or
• C 4 alkoxy substituted Cp to Cio alkanoate optionally substituted by nitro, cyano, hydroxy, Cp to C 25 alkyl, perfluoro Cp to C alkyl, Cp to C alkoxycarbonyl or chlorine, benzene or naphthalene or biphenyl sulfonate , benzene or naphthalene or biphenyl disulfonate, optionally substituted by nitro, cyano, hydroxy, Cp to C alkyl, Cp to C 4 alkoxy, Cp to C 4 alkoxycarbonyl or chlorine, optionally by nitro, cyano, Cp to C 4- alkyl, Cp to C -alkoxy, Cp to C 4 -alkoxy- carbonyl, benzoyl, chlorobenzoyl or toluoyl substituted benzoate, the anion of naphthalenedicarboxylic acid, diphenyl ether disulfonate, the
• Bromide, iodide, tetrafluoroborate, perchlorate, methanesulfonate, benzenesulfonate, toluenesulfonate, dodecylbenzenesulfonate, tetradecanesulfonate are preferred.
• the triazacyanines used are those of the formula (IV)
• R 1 and R 2 independently of one another are methyl, ethyl, propyl, butyl, pentyl, hexyl, benzyl, cyclohexyl, chloroethyl, cyanomethyl, cyanoethyl, hydroxyethyl, 2-hydroxypropyl, methoxyethyl, ethoxyethyl or a radical of the formula
• X 5 represents N or CR 6 .
• X 6 represents N or CR 7
• R 4 and R 5 independently of one another are hydrogen, methyl, ethyl, methoxy, cyano, methoxycarbonyl, dimethylamino, diethylamino, dipropylamino, dibutylamino, N-methyl-N-cyanoethylamino, N-methyl-N-methoxyethylamino, N-methyl- N-hydroxyethylamino, bis (cyanoethyl) amino, bis (methoxyethyl) amino, bis (hydroxyethyl) amino, N-methyl-N-benzylamino, N-methyl-N-phenylamino, phenylamino, methoxyphenylamino, pyrrohdino, piperidino , N-methyl-, N-ethyl-, N-hydroxyethyl- or N-cyanoethylpiperazino or morpholino,
• R 6 and R 7 independently of one another represent hydrogen, methyl, ethyl, methoxy or cyano or
• the triazacyanines used are those of the formula (IV)
• R 1 and R 2 are the same and represent methyl, ethyl, propyl, butyl, pentyl, hexyl, benzyl, cyclohexyl, chloroethyl, cyanomethyl, cyanoethyl, hydroxyethyl, 2-hydroxypropyl, methoxyethyl, ethoxyethyl or a radical of the formula
• the triazacyanines used are those of the formula (IV)
• R 1 and R 2 are the same and represent methyl, ethyl, propyl, butyl, pentyl, hexyl,
• X 5 represents N
• X 6 represents N
• R 4 and R 5 are the same and represent dimethylamino, diethylamino, dipropylamino, dibutylamino, N-methyl-N-cyanoethylamino, N-methyl-N-methoxyethylamino, N-methyl-N-hydroxyethylamino, bis- (cyanoethyl) amino, Bis (methoxyethyl) amino, bis (hydroxyethyl) amino, N-methyl-N-benzylamino, N-methyl-N-phenylamino, phenylamino, methoxyphenylamino, pyrrohdino, piperidino, N-methyl, N-ethyl, N-hydroxyethyl- or N-cyanoethylpiperazino or morpholino, and
• the triazacyanines used are those of the formula (IV)
• R 1 and R 2 are the same and represent methyl, ethyl, propyl, butyl, pentyl, hexyl, benzyl, cyclohexyl, chloroethyl, cyanomethyl, cyanoethyl, hydroxyethyl, 2-hydroxypropyl, methoxyethyl, ethoxyethyl or a radical of the formula
• X b CR 7 stands, R 4 for dimethylamino, diethylamino, dipropylamino, dibutylamino, N-
• Methyl-N-hydroxyethylamino bis- (cyanoethyl) amino, bis- (methoxyethyl) amino, bis- (hydroxyethyl) amino, N-methyl-N-benzylamino, N- methyl-N-phenylamino, phenylamino, methoxyphenylamino,
• those triazacyanine dyes are preferred whose absorption maximum ⁇ max2 is in the range 420 to 550 nm, the wavelength ⁇ / at which the extinction in the short-wave Flank of the absorption maximum of the wavelength ⁇ max is half the extinction value at ⁇ maX2 , and the wavelength ⁇ ⁇ 0 , at which the absorbance in the short-wave flank of the absorption maximum of the wavelength ⁇ max2
• Tenths of the extinction value at ⁇ max2 is preferably not more than 50 nm apart.
• Such a triazacyanine dye preferably does not have a shorter-wave maximum ⁇ max ⁇ up to a wavelength of 350 nm, particularly preferably up to 320 nm, very particularly preferably up to 290 nm.
• Triazacyanin dyes with an absorption maximum ⁇ max2 of 410 to 530 nm are preferred.
• Triazacyanine dyes with an absorption maximum ⁇ max2 of 420 to 510 nm are particularly preferred.
• Triazacyanine dyes with an absorption maximum ⁇ max of 430 to 500 nm are very particularly preferred.
• triazacyanine dyes ⁇ / 2 and ⁇ / ⁇ 0 are preferably not more than 40 nm apart, more preferably not more than 30 nm apart, very particularly preferably not more than 20 nm apart.
• those triazacyanine dyes are preferred whose absorption maximum ⁇ maX 2 is in the range from 500 to 650 nm, the wavelength ⁇ / 2 at which the absorbance in the long-wave flank of the absorption maximum of the wavelength ⁇ max2 is half the extinction value at ⁇ maX2 , and the wavelength in which the extinction in the long-wave flank of the absorption maximum of the wavelength ⁇ max2 is one-tenth of the extinction value at ⁇ max2 , preferably not further than
• Such a triazacyanine dye preferably has no longer-wave maximum ⁇ max3 up to a wavelength of 750 nm, particularly preferably up to 800 nm, very particularly preferably up to 850 nm.
• Triazacyanin dyes with an absorption maximum ⁇ max2 of are preferred
• Triazacyanine dyes with an absorption maximum ⁇ maX 2 of 550 to 620 nm are particularly preferred.
• Triazacyanine dyes with an absorption maximum ⁇ max2 of 580 to 610 nm are very particularly preferred.
• triazacyanine dyes ⁇ / 2 and ⁇ ⁇ 0 are preferably not more than 40 nm apart, more preferably not more than 30 nm apart, very particularly preferably not more than 20 nm apart.
• the triazcyanine dyes have a molar extinction coefficient ⁇ > 20,000 l / mol cm, preferably> 30,000 l / mol cm, particularly preferably> 40,000 l / mol cm, very particularly preferably> 60,000 l / mol cm.
• the absorption spectra are measured, for example, in solution.
• Triazacyanins of formula (I) are known, for. B. from EP-A 0 567 846.
• the light-absorbing substances 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 in the range from 360 to 460 nm and 600 to 680 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 triazacyanine dyes according to the invention in particular guarantee a particularly high change in the refractive index during the transition from the unwritten to the described state.
• the triazacyanine dyes are preferably applied to the optical data carrier by spin coating.
• the triazacyanines can be mixed with one another or with other dyes with similar spectral properties.
• the information layer can contain additives such as binders, wetting agents, stabilizers, thinners and sensitizers and other constituents.
• the optical data storage device can carry further layers such as metal layers, dielectric layers and protective layers. Metals and dielectric layers are used, among other things, to adjust the reflectivity and the heat balance. Depending on the laser wavelength, metals can be gold, silver, aluminum and others. Dielectric layers are, for example, silicon dioxide and silicon nitride.
• Protective layers are, for example, photocurable lacquers, (pressure-sensitive) adhesive layers and protective films.
• Preferred pressure-sensitive adhesive layers consist mainly of acrylic adhesives.
• the optical data carrier has, for example, the following layer structure (cf. FIG. 1): a transparent substrate (1), optionally a protective layer (2), an information layer (3), optionally a protective layer (4), optionally one
• Adhesive layer (5) 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 one Cover layer (6) are applied.
• a preferably 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, optionally a protective layer (4), optionally an adhesive layer (5), and a trans Parente cover layer (6) are applied.
• a preferably transparent substrate (1) on the surface of which 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.
• the optical data carrier has, for example, the following layer structure (cf. FIG. 2): a preferably transparent substrate (11), an information layer (12), optionally a reflection layer (13), optionally an adhesive layer (14), another preferably transparent substrate (15).
• the invention further relates to optical data carriers according to the invention described with blue or red light, in particular laser light.

Landscapes

• Chemical & Material Sciences (AREA)
• Organic Chemistry (AREA)
• Engineering & Computer Science (AREA)
• Manufacturing & Machinery (AREA)
• Materials Engineering (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Optical Record Carriers And Manufacture Thereof (AREA)
• Thermal Transfer Or Thermal Recording In General (AREA)
• Manufacturing Optical Record Carriers (AREA)

Applications Claiming Priority (5)

Publications (1)

Family

ID=26008933

Family Applications (1)

Country Status (6)

Families Citing this family (16)

Family Cites Families (13)

• 2002
  • 2002-03-20 EP EP02735147A patent/EP1374233A1/de not_active Withdrawn
  • 2002-03-20 WO PCT/EP2002/003081 patent/WO2002084656A1/de not_active Ceased
  • 2002-03-20 JP JP2002581522A patent/JP2004524195A/ja active Pending
  • 2002-03-20 CN CNA028109074A patent/CN1513176A/zh active Pending
  • 2002-03-20 US US10/101,791 patent/US6641889B2/en not_active Expired - Fee Related
  • 2002-03-20 TW TW091105379A patent/TWI237257B/zh not_active IP Right Cessation

Non-Patent Citations (1)

Also Published As

Similar Documents

Legal Events