WO2002050210A1 - Agent absorbeur de lumiere - Google Patents
Agent absorbeur de lumiere Download PDFInfo
- Publication number
- WO2002050210A1 WO2002050210A1 PCT/JP2001/011107 JP0111107W WO0250210A1 WO 2002050210 A1 WO2002050210 A1 WO 2002050210A1 JP 0111107 W JP0111107 W JP 0111107W WO 0250210 A1 WO0250210 A1 WO 0250210A1
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- WIPO (PCT)
- Prior art keywords
- group
- ring
- light
- optical recording
- polymethine
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- 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
- G11B7/2495—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 as anions
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- 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
- C09B67/00—Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
- C09B67/0033—Blends of pigments; Mixtured crystals; Solid solutions
- C09B67/0034—Mixtures of two or more pigments or dyes of the same type
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- 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
- C09B69/00—Dyes not provided for by a single group of this subclass
- C09B69/02—Dyestuff salts, e.g. salts of acid dyes with basic dyes
- C09B69/04—Dyestuff salts, e.g. salts of acid dyes with basic dyes of anionic dyes with nitrogen containing compounds
- C09B69/045—Dyestuff salts, e.g. salts of acid dyes with basic dyes of anionic dyes with nitrogen containing compounds of anionic azo dyes
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- 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
- C09B69/00—Dyes not provided for by a single group of this subclass
- C09B69/02—Dyestuff salts, e.g. salts of acid dyes with basic dyes
- C09B69/06—Dyestuff salts, e.g. salts of acid dyes with basic dyes of cationic dyes with organic acids or with inorganic complex acids
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Definitions
- the present invention relates to a light absorbing agent, and particularly to an optical recording medium.
- optical recording media such as CD-R (write-once memory using a compact disk) and DVDR- (write-once memory using a digital video disk) are in the spotlight.
- Optical recording media include inorganic optical recording media that use inorganic materials such as tellurium, selenium, and rhodium to form the recording layer, and organic optical recording media that use a light absorbing agent mainly composed of an organic dye compound to form the recording layer. They can be roughly classified.
- organic optical recording media usually dissolve a polymethine dye in an organic solvent such as 2,2,3,3-tetrafluoro-1-propanol (hereinafter abbreviated as “TFP”).
- TFP 2,2,3,3-tetrafluoro-1-propanol
- the solution is applied to a polycarbonate substrate.
- a reflective layer made of a metal such as gold, silver, and copper, and a protective layer made of an ultraviolet-curable resin or the like are sequentially adhered to each other to form a recording layer. Is produced.
- Organic optical recording media have the disadvantage that the recording layer is easily changed by environmental light such as artificial light or natural light compared to inorganic optical recording media, but the optical absorber is applied directly to the substrate in a solution.
- the recording layer can be formed, and there is an advantage that the optical recording medium can be manufactured at low cost.
- organic optical recording media are mainly composed of organic substances, they have the advantage of being resistant to corrosion even in environments exposed to moisture and seawater.
- the heat-deformable optical recording medium which is a type of body, information recorded on the optical recording medium in a predetermined format can be read using a commercially available read-only device. Recording media is becoming mainstream.
- an object of the present invention is to provide a light absorbing agent exhibiting excellent electric characteristics in an organic optical recording medium and its use. Disclosure of the invention
- an organometallic complex dione was used as a counter ion, and A first polymethine dye having a monomethine chain or a polymethine chain in the molecule, and a second polymethine dye having a monomethine chain or a polymethine chain in the molecule using an anion other than the organometallic complex anion as a counter ion.
- a formazan metal complex optical recording with excellent electrical characteristics such as resolution and jitter can be realized even when relatively low-output writing light is used.
- an organometallic complex anion as a counter ion
- a first polymethine dye having a monomethine chain or a polymethine chain in the molecule
- an organic metal complex other than anionic metal complex is an object of the present invention.
- An object of the present invention is to provide a light absorber comprising a second polymethine dye having a monomethine chain or a polymethine chain in the molecule and a formazan metal complex with anion as a counterion.
- the present invention solves the above-mentioned problems by providing an optical recording medium using such a light absorbing agent.
- the present invention solves the above-mentioned problems by providing a method for manufacturing an optical recording medium via a step of forming a uniform thin film containing such a light absorbing agent on a substrate.
- FIG. 1 shows a visible absorption spectrum of a light absorber according to the present invention in a solution state (solid line) and in a thin film state (dashed line).
- FIG. 2 is a schematic diagram of an optical recording medium having a substrate 1, a recording layer 2, a reflective layer 3, and a protective plate 4 used in an experimental example.
- the present invention uses the organometallic complex anion as a counter ion, A first polymethine dye having a monomethine chain or a polymethine chain in the molecule and a second polymethine dye having a monomethine chain or a polymethine chain in the molecule, using an anion other than the organometallic complex anion as a counter ion And a light-absorbing agent comprising a formazan metal complex.
- the first and second polymethine dyes used in the present invention usually have structures represented by general formulas 1 and 2, respectively.
- General formula 1 General formula 2: 1 m in the general formula 1 and 1 ′ m ′ in the general formula 2 each independently represent an integer that is either 0 or 1, and 1 and m, or 1 ′ and m ′, respectively, Neither can be zero.
- Z 2 represents a heterocyclic ring or an aromatic ring which is the same as or different from Zi, and the heterocyclic ring and the aromatic ring may have one or more substituents.
- the Z 3 in Formula 2 is heterocycle, also, sigma 4 represent the same or different that the heterocyclic or aromatic ring and 2 3, which heterocyclic and aromatic ring optionally a substituent 1 or a plurality Is also good.
- multiple Monocyclic or polycyclic including numbers, for example, indole, benzoindole, indolenine, benzoindolenine, oxazolyl, benzoxazolyl, thiazole, benzothiazole rings And a benzoimidazole ring and a quinoline ring.
- the heterocyclic ring in Z 2 and Z 4, and even the same heterocycle as in Z 3, else, for example, pyridine ring may be a heterocyclic ring such as quinoline rings.
- the aromatic ring for z 2 and z 4 is selected from monocyclic or polycyclic aromatic rings having a benzene ring as a basic unit, such as a benzene ring, a naphthylene ring, an anthracene ring, and a phenanthrene ring.
- the polymethine dye in the present invention is an organic dye compound having any one of a monomethine chain, a dimethine chain, and a trimethine chain in which the same or different cyclic nuclei are bonded to both ends.
- the first and second polymethine dyes referred to in the present invention have the same cation structure as the polymethine dye as long as the counterion is a predetermined anion, as seen in the general formulas 1 and 2. May be used.
- Examples of the structure of the cation in the first and second polymethine dyes include, for example, the cation of a monomethine or trimethine cyanine dye represented by the general formula 4, and the styryl dye represented by the general formula 5. Cations. Note that n in the general formula 4 represents an integer that is either 0 or 1.
- Z 8 and Z 9 in the general formula 4 each independently represent a condensed benzene ring or a condensed naphthalene ring for completing a benzowearnine skeleton.
- Z in general formula 5 Also represents a condensed benzene ring or a condensed naphthalene ring for completing a benzoin-drenine skeleton, similarly to Z 8 and Z 9 in the general formula 4.
- These condensed rings may have one or more substituents. Examples of the individual substituents include a methyl group, an ethyl group, a propyl group, an isopropyl group, a butyl group, an isobutyl group, and a sec-butyl group.
- one or more of the substituents may be, for example, a halogen group such as a fluoro group, a chloro group, a bromo group, an odo group, a methoxy group, an ethoxy group, or a propoxy group.
- a halogen group such as a fluoro group, a chloro group, a bromo group, an odo group, a methoxy group, an ethoxy group, or a propoxy group.
- Group isopropoxy group, butoxy group, isobutoxy group, sec-butoxy group, tert-butoxy group, pentyloxy group, phenoxy group, ether group such as benzyloxy group, phenyl group, o-tolyl group, m-tolyl group, p— It may be substituted by an aromatic hydrocarbon group such as a tolyl group, a xylyl group, a medityl group, a 0-cumenyl group, an m-cumenyl group, a p-cumenyl group, and further a carboxy group, a cyano group, a nitro group, and the like. .
- R and R 2 in Formula 4 each independently represent an aliphatic hydrocarbon group, and these aliphatic hydrocarbon groups may have one or more substituents.
- carbon number 1 2 typically of 1 to 8 carbon atoms,
- One or more hydrogen atoms in such an aliphatic hydrocarbon group may be, for example, phenyl, o-tolyl, m-tolyl, p-tolyl, xylyl, mesityl, o —Cumenyl, m-cumenyl, p—Cumenyl and other aromatic hydrocarbon groups, methoxy, ethoxy, propoxy, isopropoxy, butoxy, isobutoxy, sec —butoxy, tert —butoxy Ether groups such as pentyloxy group, phenoxy group and benzyloxy group; fluorene groups such as fluoro group, chloro group, promo group and sulfide group; and carboxy group, nitro group and cyano group. May be replaced by
- substituents in R 4 and R 5 include a methyl group, an ethyl group, a propyl group, an isopropyl group, a butyl group, an isobutyl group, a sec-butyl group, a tert-butyl group, a pentyl group, an isopentyl group, a neopentyl group, tert-aliphatic hydrocarbon group such as pentyl group, cyclopropyl group, cyclobutyl group, cyclopentyl group, cyclohexyl group, cyclohexenyl group, etc., phenyl group, o-tolyl group And aromatic hydrocarbon groups such as m-tolyl group, p-tolyl group, xylyl group, mesityl group, o-cumenyl group, m-cumen
- One or more of the hydrogen atoms in such a substituent may be, for example, a methoxy group, an ethoxy group, a propoxy group, an isopropoxy group, a butoxy group, an isobutoxy group, a sec-butoxy group, a tert-butoxy group, Ether groups such as pentyloxy group, phenoxy group and benzyloxy group, methoxycarbonyl group, ethoxycarbonyl group, ester group such as propoxycarbonyl group, acetooxy group and benzoyloxy group, methylamino group, dimethylamino group, ethylamino group , Dimethylamino group, propylamino group, dipropylamino group, isopropylamino group, diisopropylamine Pyramino group, butylamino group, dibutylamino group, isobutylamino group, diisobutylamino group, sec—butylamino
- R 4 and Z or R 5 include only the nitrogen atom to which they are bonded, or include the benzene ring to which the nitrogen atom is bonded, for example, a pyrrolidine ring, It may form a cyclic structure such as a lysine ring, a morpholine ring, a urolysine ring, or a tetrahydroquinoline ring.
- X in the general formula 1 represents an organometallic complex anion.
- the individual organometallic complex anions include azo, bisphenyldithiol, thiocatecholate, thiopisphenolate chelate, and the like. Bisdiol- ⁇ -diketone type.
- a preferred organometallic complex ion is an azo organic metal complex ion having a metal atom as a central atom and one or more azo compounds bonded to the metal atom as a ligand.
- the azo-based organometallic complex anion include, for example, those represented by the general formula 6.
- Z ii to Z i 4 in the general formula 6 represents the same or different aromatic rings or multiple ring together, these aromatic rings and heterocyclic ring may have one or more substituents.
- the preferred aromatic ring is a monocyclic benzene ring
- the heterocyclic ring includes one or more hetero atoms selected from a nitrogen atom, an oxygen atom, a sulfur atom, a selenium atom, and a tellurium atom.
- Such an aromatic ring and a heterocyclic ring include, for example, a methyl group, an ethyl group, a propyl group, an isopropyl group, a butyl group, an isopropyl group, a sec-butyl group, a tert-butyl group, a pentyl group, an isopentyl group and a neopentyl group , Tert-aliphatic hydrocarbon group such as pentyl group, phenyl group, o-tolyl group, m-tolyl group, p-tolyl group, xylyl group, mesityl group, o-cumenyl group, m-cumenyl Group, p-Cumenyl group and other aromatic hydrocarbon groups, methoxycarbonyl group, trifluoromethoxycarbonyl group, ethoxycalponyl group, propoxycarbonyl group, acetoxy group, trifluoroacetoxy group,
- Ester group methylamino group, dimethylamino group, ethylamino group, ethylamino group, propylamino group Dipropylamino group, isopropylamino group, diisopropylamino group, butylamino group, dibutylamino group, isobutylamino group, diisopropylamino group, sec-butylamino group, 'tert-butylamino group, pentylamino group, Anilino group, diphenylamino group, 0—triidino group, m—triidino group, p—triidino group, xylidino group, pyrazino group, piperidino group, pyrrolidino group, morpholino group, etc.
- one or more of the hydrogen atoms in such substituents may be, for example, methyl, ethyl, propyl, isopropyl, butyl, isobutyl, sec-butyl, tert- Butyl, pentyl, isopentyl, neopentyl, tert-pentyl, and other aliphatic hydrocarbon groups, phenyl, o-tolyl, m-tolyl, p-tolyl, xylyl, Aromatic hydrocarbon groups such as mesityl group, o-cumenyl group, m-cumenyl group, p -cumenyl group, methoxy group, ethoxy group, propoxy group, isopropoxy group, butoxy group, isobutoxy group, sec.
- the azo organic metal complex anion represented by the general formula 6 is formed by bonding two azo compounds, which are the same or different from each other, to the metal atom M serving as a central atom as a ligand as described above. Things.
- the metal atoms are usually scandium, yttrium, titanium, zirconium, hafnium, vanadium, niobium, tantalum, chromium, molybdenum, tungsten, manganese, technetium, rhenium, iron, ruthenium. , Osmium, cobalt, rhodium, iridium, nickel, palladium, platinum, copper, silver, gold, zinc, cadmium, mercury, etc.
- a and A ′ in the general formula 6 can form a coordination bond by donating an electron pair to a metal atom, for example, a periodic bond such as an oxygen atom, a sulfur atom, a selenium atom, and a tellurium atom. represents mutually same or different hetero atoms selected from the first group 6 element in the periodic table, those heteroatoms may be those constituting the atomic group bonded to Z 1 4.
- azo-based organometallic complexes include, for example, those represented by Chemical Formula 1 and Chemical Formula 2.
- the azo-based organometallic complex represented by the chemical formulas 1 and 2 is used for subjecting aniline or an aniline derivative to a diazo-bonding reaction, and converting the resulting azo compound to an appropriate metal salt.
- the desired amount can be obtained according to a known method in which the reaction is carried out in the presence of a base and a base.
- a polymethine dye having the azo organic metal complex anion as a counter ion for example, a polymethine dye having an anion other than the azo organic metal complex anion as a counter ion in a suitable solvent is used.
- the dye and the salt of the azo-based organometallic complex dione as described above are heated at a temperature above ambient temperature for 0.1 to 10 hours with stirring.
- X 2 — in the general formula 2 represents an anion other than the organometallic complex anion as described above.
- X 2 — is an anion other than the organometallic complex anion, and although it depends on the application, the key is to indicate the thermal properties such as melting point, decomposition point, and calorific value. It is appropriate to use the appropriate one.
- an anion that hardly alters the reflection layer containing a metal for example, phosphate ion, perchlorate ion, periodate ion, hexafluorophosphate ion, antimony hexafluoride
- Inorganic acid ions such as ionic ions, stannate hexafluoride ion, borofluoride ion, and tetrafluoroborate ion, thiocyanate ion, benzenesulfonate ion, naphthalenesulfonate ion, P-toluenesulfonate ion
- Organic acid ions such as alkyl sulfonate ion, benzene carboxylate ion, alkyl carboxylate ion, trihalide alkyl carboxylate ion, alkyl sulfate ion, trihaloalkyl sulfate i
- Preferred examples of the first polymethine dye for practicing the present invention include those represented by Chemical Formulas 3 to 8, and examples of the second polymethine dye include Chemical Formulas 9 to 20. The following are examples.
- the formazan metal complex referred to in the present invention has a metal atom as a central atom, and a formazan compound or a tautomer thereof as a ligand.
- formazan metal complexes are those having a group of formazan compounds represented by the general formula 3 or a tautomer thereof as a ligand.
- General formula 3 :
- Z 5 represents a pyridine ring, and the pyridine ring may have one or more substituents.
- Individual substituents include, for example, methyl, ethyl, propyl, isopropyl, butyl, isobutyl, sec-butyl, tert-butyl, pentyl, isopene Aliphatic hydrocarbon groups such as tyl group, neopentyl group, tert-pentyl group, methoxy group, ethoxy group, propoxy group, isopropoxy group, butoxy group, isobutoxy group, sec-butoxy group, tert-butoxy group Ether, such as pentyloxy, phenoxy, and benzyloxy, methylamino, dimethylamino, ethylamino, getylamino, propylamino, dipropylamino, isopropylamino, diisopropylamino, and butylamino.
- Dibutylamino isobutylamino, diisobutylamino, sec-butylamino, tert-butylamino, pentylamino, anilinino, o-triidino, m-triidino, p—triidino group, xylidino group, piberidino Groups, amino groups such as a piperazino group and a morpholino group, octalogene groups such as a fluoro group, a chloro group, a bromo group and a sulfide group, and a cyano group and a nitro group.
- One or more of the hydrogen atoms in such a substituent is, for example, a methyl group, an ethyl group, a propyl group, an isopropyl group, a butyl group, an isopropyl group, a sec-butyl group, a tert-butyl group, a benzyl group, Aliphatic hydrocarbon groups such as isopentyl group, neopentyl group, tert-pentyl group, methoxy group, ethoxy group, propoxy group, isopropoxy group, butoxy group, isobutoxy group, sec-butoxy group, tert-butoxy group, pentyloxy Groups, phenoxy groups, ether groups such as benzyloxy groups, halogens such as fluoro groups, chloro groups, promo groups and iodine groups , An ester group such as a methoxycarbonyl group, a trifluoromethoxycarbonyl group, an e
- Z 6 in the general formula 3 represents an aromatic ring or a heterocyclic ring.
- the aromatic ring in Z 6 include a benzene ring, a naphthalene ring, and an anthracene ring.
- the heterocycle include an imidazole ring, a benzimidazole ring, a quinoline ring, an isoquinoline ring, and an oxazolyl ring.
- Benzookisazo Le ring thiazole ring, benzothiazole ring, piperidines Rajin ring, pyridine ring, pyridazine ring, such as pyrimidine ring, and these aromatic rings and heterocycles 1 or the same substituent as in Z 5 You may have more than one.
- Z 7 is a pyridine ring in general formula 3 represents a furan ring or an aliphatic hydrocarbon group, their pyridine ring and furan ring may have one or more of the same substituents as in the z 5.
- One or more hydrogen atoms in the aliphatic hydrocarbon group are selected from those having 1 to 5 carbon atoms such as a neopentyl group and a tert'-pentyl group, and one or more of the hydrogen atoms are, for example, a halogen group such as a fluoro group.
- the formazan compound represented by the general formula 3 has an asymmetric structure in which Z 5 and Z 6 are different from each other. , In theory, there will be two tautomers. Unless otherwise specified, the formazan compound in the present invention includes all such tautomers. As for the formazan compound of the present invention which exists as an equilibrium mixture of such tautomers, unless otherwise required, the structure of only one of the tautomers is displayed in accordance with the practice of the art.
- the formazan metal complex used in the present invention is usually such a formazanated
- the compound or its tautomer is one or more coordinated to a metal (central atom).
- the central metal include scandium, yttrium, titanium, zirconium, hafnium, vanadium, niobium, tantalum, chromium, molybdenum, tungsten, manganese, technetium, rhenium, iron, cobalt, nickel, rubidium, and rhodium.
- octa-logenides such as chlorides, chlorides, bromides and iodides.
- nickel, zinc, cobalt, iron, copper, palladium, and their carbides and halides are usually used because of their cost and availability.
- formazan metal complexes the central atom of divalent metal (M), particularly preferred is a complex represented by the formula FZ p (X 3) q.
- Fz is a formazan compound represented by the general formula 3 or a tautomer thereof
- p is the number of the formazan compound or a tautomer thereof as a ligand (Fz) coordinated to M.
- X 3 represents a counter ion as appropriate
- q is the number of X 3 to maintain charge balance in the complex.
- the formazan metal complex of the present invention usually takes a monovalent, zero-valent or monovalent charge, but when the charge is zero-valent, q is zero, and therefore, X 3 does not exist.
- Counter ions x for example, hexafluorophosphate ion, Fussosan I O emissions, hydrochloric ion, bromate ion, iodate ion, phosphate ion, perchlorate ion, periodate ion, Rokudoruka antimonate Ion, hexafluorostannate, boron borofluoride, tetrafluoroborate, thiocyanate, benzenesulfonate, naphthalenesulfonate, benzenecarbonate, alkylcarboxylate, Trihaloalkyl carboxylic Examples include anions such as acid ions, alkyl sulfate ions, trialkylsulfate ions, and nicotinate
- formazan metal complex used in the present invention include, for example, nickel complexes represented by Chemical Formulas 21 to 24.
- the polymethine cyanine dyes and the formazan metal complexes represented by Chemical Formulas 3 to 24 are merely examples, and the first and second polymethine dyes and the formazan metal complexes used in the present invention are by no means limited to these. must not.
- Japanese Patent Application No. 11-34-3211 Tile of Invention "Styryl Dye”
- Japanese Patent Application No. 11-3598949 by the same patent applicant (Title of Invention "Styryl Dye")
- Japanese Patent Application No. 2000-81 541 Specification (Title of Invention "Cyanine Dye")
- the light absorber according to the present invention comprises the first and second polymethine dyes as described above and a formazan metal complex.
- the mixing ratio depends on the application and the type of the polymethine dye or the formazan metal complex to be mixed.
- the second polymethine is used in the case of an optical recording medium.
- the weight ratio of the first polymethine dye to the base dye is adjusted to 1% by weight or more, usually in the range of 5 to 50% by weight.
- the weight ratio of the formazan metal complex to the total amount of the first and second polymethine dyes is adjusted to 0.1% by weight or more, usually in the range of 1 to 20% by weight.
- the weight ratio of the first polymethine dye to the second polymethine dye depending on the application, for example, in an optical recording medium, when the ratio of the first polymethine dye increases, the durability increases. However, electrical characteristics such as sensitivity and jitter may decrease. Also, if the formazan metal complex is too large or too small, it is difficult to obtain the desired electrical characteristics. Therefore, the first and second polymethine dyes and the formazan metal complex are usually blended in the above range in an optical recording medium so that the light absorber according to the present invention can be used to exhibit the desired electrical properties. It is desirable to do.
- the first and second polymethine dyes and the formazan metal complex in the light absorber according to the present invention only need to be incorporated in the final product such as an optical recording medium, and therefore, prior to use, Even if the two or three are blended in a predetermined ratio, each component is separately used while adjusting the mixing ratio of each component in the application subject to the predetermined ratio. May be added.
- Each of the first and second polymethine dyes and the formazan metal complex may be a single compound or a mixture of a plurality of compounds.
- the light absorbing agent of the present invention may be used in other organic dye compounds that substantially absorb visible light and optical recording media without departing from the object of the present invention.
- a light resistance improving agent a binder, It does not prevent the incorporation of one or more dispersants, flame retardants, lubricants, antistatic agents, surfactants, heat interference inhibitors, plasticizers, and solvents.
- organic dye compounds to be incorporated into the light absorber of the present invention include: Is not particularly limited as long as it can substantially absorb visible light and can adjust the light reflectance and light absorption of an optical recording medium or the like.
- Such organic dye compounds may have one or more substituents at both ends of a polymethine chain such as a monomethine chain or a dimethine chain, a trimethine chain, or a pentamethine chain, which may have one or more substituents, and may be the same as each other.
- imidazoline imidazole, benzimidazole, ⁇ -naphtoimidazole, iS—naphtoimidazole, indole, isoindole, indrenine, isoindolenine, benzoindolenine, pyridinoindolenine Ring, oxazoline ring, oxazole ring, isoxazole ring, benzoxazole ring, pyridinoxazole ring, ⁇ -naphthoxazole ring, j3-naphthoxazole ring, selenazoline ring, selenazole ring, benzoselenazole ring, Q!
- pentamethine-based cyanine dyes and heptamethine-based cyanine dyes are preferred.
- pentamethine-based indocyanine dyes are preferred.
- the individual cyanine dyes include, for example, Japanese Patent Application No. 11-10553 by the same patent applicant. 3 No. 2 (Title of Invention "Cyanine Dye"), Japanese Patent Application No. 11-111 9 14 No. 2 Specification (Title of Invention "Cyanine Dye”), Japanese Patent Application No. 11-28 What is described in the specification of No. 5123 (the title of the invention "Cyanine dye”), the specification of Japanese Patent Application No.
- Cyanine dye 2000-62072 (the title of the invention "Cyanine dye"), etc. No.
- a cyanine dye When used in combination with such a cyanine dye, it is usually in the range of 0.1 to 20% by weight, preferably 1 to 10% by weight, based on the total amount of the first and second polymethine dyes. Increase or decrease with.
- Examples of the lightfastness improver include nitroso compounds such as nitrosodiphenylamine, nitrosoanilin, nitrosophenol, and nitrosonaphthol, and tetrathanoquinodimethane compounds and dimonium compounds. These are used in an appropriate combination as needed. Since the light absorbing agent of the present invention has high light resistance, such a light resistance improving agent is not required for use, or the amount of the light resistance improving agent used in combination can be reduced. You.
- the light absorber according to the present invention has an absorption maximum in the visible region, substantially absorbs visible light having a wavelength of 700 nm or less, and has high light resistance to environmental light such as natural light and artificial light.
- An organic dye compound having such properties is required, and has a wide variety of uses in various fields including, for example, optical recording media, photochemical polymerization, solar cells, and dyeing.
- the light absorbing agent of the present invention is used as visible light having a wavelength of 70 O nm or less, particularly, a wavelength of around 400 to 45 O nm or around 63 to 68 O nm as writing light. It is particularly useful as a light absorber for forming a recording layer of a high-density optical recording medium such as a DVD-R using a laser beam.
- the light absorbing agent according to the present invention does not require any special treatment or operation when used in an optical recording medium.
- the light absorbing agent according to the present invention is dissolved in an organic solvent, and the solution is uniformly applied to one surface of the substrate by a spraying method, a dipping method, a mouth coating method, a spin coating method, etc., and dried to form a recording layer.
- a protective layer that adheres to the reflective layer is formed by spin-coating an ultraviolet-curing resin or a thermosetting resin containing a flame retardant, stabilizer, antistatic agent, etc., and then irradiating with light or heating to cure.
- the substrate on which the recording layer, the reflective layer, and the protective layer are formed as described above may be provided with, for example, an adhesive, Laminate the protective layers facing each other with an adhesive sheet, or attach a protective plate of the same material and shape as the substrate to the protective layer.
- the light absorbing agent according to the present invention exhibits practically acceptable solubility not only in fluorinated solvents such as TFP but also in various other organic solvents. Therefore, the organic solvent for applying the light absorbing agent to the substrate is used. There are no particular restrictions. Therefore, in producing the optical recording medium according to the present invention, for example, the TFP force frequently used for producing the optical recording medium, or hexane, cyclohexane, methylcyclohexane, dimethylcyclohexane, and ethylhexane , Isopropircyclohexane, tert-butylcyclohexane, cyclooctane, benzene, toluene, xylene and other hydrocarbons, chloroform, 1,2-dichloroethane, 1,2-dibromoethane, trichloroethylene , Tetrachloroethylene, chlorobenzene, bromobenzene, halides such as ⁇
- the light absorber according to the present invention has a high solubility in an organic solvent that easily evaporates, such as TFP, the light absorber according to the present invention is dissolved in such a solvent and applied to a substrate. Crystals of polymethine dyes and formazan metal complexes do not appear, and the thickness and surface of the recording layer do not become uneven. Further, when the light absorber according to the present invention is dissolved in alcohols such as methyl sorb, ethylcellosolve, and diaceton alcohol and applied to the substrate, the solvent is less likely to damage the substrate or contaminate the environment.
- alcohols such as methyl sorb, ethylcellosolve, and diaceton alcohol
- TFP 2,2,3,3,4,4-hexafluoro-1-butanol, 2,2,3,3,3,4,4,5,5,5-octafluoro-1-pentanol
- fluorinated solvents such as fluorinated aliphatic alcohols and ether solvents such as getyl ether, diisopropyl ether, dibutyl ether, etc., acetone, ethyl methyl ketone, methyl isobutyl ketone Ketone solvents such as hexane, cyclohexanone, and isophorone, methanol, ethanol, and 2-methoxetano Alcohol, 2-ethoxyethanol, 1-propanol, 1-butanol, alcohol solvents such as diacetone alcohol, nitrile solvents such as acetate nitrile and propionitrile, ethyl acetate, butyl acetate, etc.
- fluorinated solvents such as fluorinated aliphatic
- Ester solvents dichloromethane, chloroform, carbon tetrachloride, hydrocarbon solvents such as 1,1,2,2-tetrachloroethane, hexane, heptane, octane, etc., and sulfur-containing compounds such as dimethyl sulfoxide
- the optical recording medium having excellent electrical characteristics without substantially reducing the solubility of the light absorber according to the present invention in the solvent. Can be obtained with good yield, and the amount of fluorinated solvent that has recently been pointed out as a cause of environmental pollution can be significantly reduced.
- the mixing ratio of the fluorinated solvent to the non-fluorinated solvent is usually 1:99 to 99: 1 by volume, taking into account the solubility of the solute as a light absorber and the viscosity of the solution. Preferably, it is adjusted in the range of 10:90 to 90:10, and more preferably in the range of 20:80 to 80:20.
- the method of forming a thin film containing a light absorbing agent according to the present invention on a substrate should not be limited to a method of applying a solution in an organic solvent and applying the solution. General-purpose methods such as vacuum evaporation, chemical vapor deposition (CVD), sputtering, and atomic layer epitaxy (ALE) can be appropriately used.
- the substrate may also be a general-purpose substrate, and is usually appropriately formed by an extrusion molding method, an injection molding method, an extrusion injection molding method, a photopolymer method (2P method), a thermosetting integrated molding method, a light curing integrated molding method, or the like.
- the material is formed into a disk with a diameter of 12 cm and a thickness of 0.1 to 1.2 mm, and is used as a single plate, or a pressure-sensitive adhesive sheet, adhesive, etc. And used as appropriate.
- the material of the substrate is substantially transparent and has a light transmittance of 80% or more, preferably 90% or more in a wavelength range of 400 to 800 nm. In principle, any material can be used.
- Individual materials include, for example, glass, ceramic, polyacrylate, polymethyl acrylate, polycarbonate, polystyrene (styrene copolymer), polymethylpentene, polyester, polyolefin, polyimide, Polyetherimide, polysulfone, polyethersulfone, polyarylate, polyacrylonitrile, polystyrene alloy, polyester polyester, polyphthalate polyester, polyphthalonepolyethylene, polyethylenediethylene glycol, Examples include plastics such as epoxy resin and phenolic resin, and usually poly-polyponate is frequently used.
- the synchronization signal and the recess indicating the address of the track and sector are usually transferred to the inner circumference of the track during molding.
- the shape of the concave portion is not particularly limited, the concave portion has an average width in a range of 0.3 to 0.8 m and a depth in a range of 70 to 20 O nm. It is desirable to do.
- the light absorbing agent according to the present invention is formed into a solution having a concentration of 0.5 to 5% by weight in an organic solvent as described above while considering the viscosity, and the recording layer is dried. Is uniformly coated on the substrate so that the thickness of the substrate is 10 to 1,000 nm, preferably 50 to 30 nm.
- an undercoat layer may be provided on the substrate, if necessary, for the purpose of protecting the substrate or improving the adhesiveness.
- the material of the undercoat layer may be, for example, ionomer resin. And polymer materials such as polyamide resins, vinyl resins, natural resins, silicones, and liquid rubbers.
- cellulose esters such as nitrocellulose, cellulose phosphate, cellulose sulfate, cellulose acetate, cellulose propionate, cellulose butyrate, cellulose palmitate, cellulose acetate / propionate, methylcellulose, and ethylcellulose
- Cellulose ethers such as cellulose, propylcellulose and butylcellulose , Polystyrene, polyvinyl chloride, polyvinyl acetate, polypinyl acetal, polyvinyl butyral, polyvinyl resin such as polypinyl formal, polypinyl alcohol, polyvinylpyrrolidone, styrene, butadiene copolymer, styrene-acrylonitrile copolymer, chloride Copolymer resins such as vinyl mono-vinyl acetate copolymer and maleic anhydride copolymer, acrylic resins such as polymethyl methacrylate, polymethyl acrylate, polyacrylate, poly
- the high-density optical recording medium such as a DVD-R according to the present invention includes, for example, GaN-based, A1GalnP-based, GaAsP-based, a Combined with AlAs, InGaP, InGaAsP or InGaA1P semiconductor laser or second harmonic generation element (SHG element)
- Various types of information using visible light with a wavelength of 700 nm or less, especially from a laser with a wavelength of about 400 to 450 nm or about 63 to 680 nm by a YAG laser, etc. Can be written at high density.
- the laser output at the time of writing information is It is desirable to set the output relatively higher than the threshold value of the energy at which the pits are formed, and relatively weaker than the threshold value when reading the written information.
- the laser output at the time of writing information is It is desirable to set the output relatively higher than the threshold value of the energy at which the pits are formed, and relatively weaker than the threshold value when reading the written information.
- more than 5 mW power typically 6 to 20 Write and read in the mW range, output less than 5 mW, typically in the range of 0.1 to 3 mW.
- the recorded information is read by detecting a change in the amount of reflected light or transmitted light between the pit and the portion where the pit is not formed on the recording surface of the optical recording medium by an optical pickup.
- visible light having a wavelength of 700 nm or less in particular, laser light having a wavelength of about 400 to 450 nm or about 63 to 68 O nm is used.
- an optical pickup it is possible to stabilize the fine pitch with a track pitch of less than 1.6 m and a pitch length of less than 0.834 m, which is adopted in the current standard CD-R. It can be formed with high density. Therefore, for example, when a disk-shaped substrate with a diameter of 12 cm is used, the recording capacity far exceeds 0.682 GB on one side, which cannot be easily achieved with a polymethine dye for CD-R. It will be possible to realize an extremely high-density optical recording medium that can record moving images such as movies and animations for about 2 hours or more.
- optical recording medium can record character information, image information, audio information, and other digital information at a high density, so that it can be used for recording and archiving documents, data, and computer programs. It is extremely useful as a business recording medium.
- the types of business and information to which the optical recording medium according to the present invention can be applied include, for example, construction and construction in civil engineering '' civil engineering drawings, maps, roads and river accounts, apachiyua cards, architectural drawings, disaster prevention materials, '' wiring Drawings, layout drawings, newspaper / magazine information, regional information, construction reports, etc., manufacturing drawings, ingredient lists, prescriptions, product specifications, product price lists, parts lists, maintenance information, accident / failure cases, complaint handling Customer information, sales partner information, company information, contracts, newspapers, magazine information, sales reports, including casebooks, manufacturing process charts, technical documents, drawings, details, in-house works, technical reports, inspection reports, etc. , Corporate credit check, inventory list, etc.
- the optical recording medium of the present invention which can be written only once, must not be falsified or erased. For example, in addition to preserving records such as medical records and official documents, museums, libraries, museums, broadcasting stations, etc. It is extremely useful as one of the electronic libraries.
- optical recording medium includes compact discs, digital video discs, laser discs, MDs (information recording systems using magneto-optical discs), CDVs (laser discs using compact discs), DAT (information recording system using magnetic tape), CD-ROM (read-only memory using compact disk), DVD-ROM (read-only memory using digital video disk), DVD-RAM (digital video disk) Writable read menu using Mori), digital photography, movies, video software, audio software, computer graphics, publications, broadcast programs, commercial messages, game software, etc., editing and proofreading, as well as large computers and car navigation systems As an external program recording means.
- the application of the light absorbing agent according to the present invention in the field of optical recording media will be described focusing on an example of application to an organic optical recording medium using visible light having a wavelength of 70 O nm or less as writing light. I've been.
- the light absorber according to the present invention is used not only in high-density optical recording media such as DVD-R, but also in current optical recording media such as CD-R.
- a pit is formed directly on a substrate by using the polymethine dye of the present invention.
- Excitation energy by laser light at around 50 nm or 63 to 680 nm is transferred to these organic dye compounds via the polymethine dye of the present invention, thereby indirectly decomposing the latter compound.
- a pit may be formed in an objective manner.
- the optical recording medium according to the present invention means any recording medium utilizing the property that the light absorbing agent of the present invention substantially absorbs visible light having a wavelength of 700 nm or less.
- a heat-sensitive coloring method using a chemical reaction between a coloring agent and a color developing agent due to heat generated by light absorption of an organic color compound, or a periodic coloring method provided on a substrate surface for example, a heat-sensitive coloring method using a chemical reaction between a coloring agent and a color developing agent due to heat generated by light absorption of an organic color compound, or a periodic coloring method provided on a substrate surface.
- Pattern A so-called “moth-eye method” that utilizes the phenomenon of flattening due to such heat generation may be used.
- the polymethine dye of the present invention substantially absorbs visible light having a wavelength of 700 nm or less
- the light absorbing agent of the present invention containing such a polymethine dye can be used in an optical recording medium.
- materials for polymerizing by exposing polymerizable compounds to visible light materials for sensitizing solar cells, laser-active substances in dye lasers, and dyeing various types of clothing It is also useful as a material for performing
- the light absorber according to the present invention may be used together with one or more other light absorbers that absorb light in the ultraviolet region, the visible region, the Z region, or the infrared region, and may be used in general clothing or other clothing.
- Shoe insoles, shoe lining, shinji, furoshiki, umbrellas, umbrellas, stuffed animals and lighting equipment for example, CRT displays, LCD displays Screens, panels and screens, sunglasses, sunroofs, sun visors, PET bottles, storages, etc.
- Example 1 Light absorber
- the first polymethine dye, the second polymethine dye and the formazan metal complex According to the composition shown in Table 1, the first polymethine dye, the second polymethine dye and the formazan metal complex, and, if necessary, a chemical formula 25 as a wavelength adjuster for correcting the light absorption characteristics.
- a pentamethine-based or heptamethine-based cyanine dye represented by any one of Chemical Formulas 28 to 28, and uniformly mixed to obtain a light absorber.
- FIG. 1 shows the visible absorption spectrum (broken line) in the thin film state and the visible absorption spectrum (solid line) of the methanol solution separately measured for the light absorber 10 according to the present invention.
- an optical recording medium was prepared by laminating a substrate 1, a recording layer 2, a reflective layer 3, and a protective plate 4 in this order. That is, one of the light absorbers 1 to 12 shown in Table 1 was added to an appropriate amount of TFP to a concentration of 2% by weight, and after heating for a while, ultrasonic waves were applied to dissolve it.
- This solution is spin-coated evenly on one side of a polycarbonate disc-shaped substrate 1 (diameter 12 cm, thickness 0.6 mm), and dried to absorb light with a thickness of 10 O nm according to the usual method.
- the recording layer 2 was formed by the agent.
- An optical recording medium for a test was produced by attaching a disk-shaped protective plate 4 (diameter 12 cm, thickness 0.6 mm) made of a resin. At the same time, an optical recording medium was prepared in the same manner as above except that the light absorbing agent 13 omitting the first polymethine dye was used as a control.
- the results in Table 1 indicate that the use of the light absorbing agent of the present invention can significantly improve the resolution and jitter of the optical recording medium.
- the optical recording media of the present invention used for the measurement all had significantly smaller jitter than the control, and also showed that I 13 II 14, which is an important index of resolution, It was obviously big.
- the write output is around 9 mW
- the above results show that the use of the light absorber of the present invention makes it possible to achieve a small jump and a high resolution even when writing at a relatively low output. It shows that excellent optical recording can be realized.
- silver is vapor-deposited on the substrate so as to have a thickness of 30 to 10 O nm to form a reflective layer which is in close contact with the recording layer.
- YUACLEAR SD 1700 (manufactured by Dainippon Ink & Chemicals, Inc.) was evenly spin-coated and irradiated with light to form a protective layer that adheres to the reflective layer.
- a pair of substrates in which a recording layer, a reflective layer and a protective layer are sequentially laminated are taken, and the protective layers are adhered to each other using a general-purpose adhesive to form one or two types of optical recording media. did.
- the optical recording medium of this example which has excellent electrical characteristics such as sensitivity, resolution, and jitter, has a recording capacity of more than 4 GB per side, and has a visible light wavelength of 70 O nm or less.
- a large amount of character information, image information, audio information, and other digital information can be written at high density.
- the recording surface of the optical recording medium of this example in which information was written using a semiconductor laser element having an oscillation wavelength of 6588 nm, was observed with an electron microscope, it was found that the pit length was less than 1 m. At a track pitch of less than 1 X m.
- Example 3 Optical recording medium
- Example 2 In the same manner as in Example 2 except that a mixed solution of TFP and acetone (volume ratio of 7: 3) was used instead of TFP, dissolution and application of the light absorber were hindered. Without bringing about, 12 kinds of optical recording media were produced with good yield.
- the optical recording medium of this example has excellent electrical characteristics such as sensitivity, resolution, and jitter despite being manufactured using a mixed solvent in which a part of TFP, which is a fluorinated solvent, is replaced with acetone, which is a non-fluorinated solvent. All have a recording capacity of more than 4 GB per side, and use an optical pickup using visible light with a wavelength of 700 nm or less, especially a single laser with a wavelength of about 630 to 680 nm. As a result, a large amount of text information, image information, audio information, and other digital information can be written at a high density. Industrial applicability
- the first polymethine dye having an organometallic complex aion as a counter ion As described above, the first polymethine dye having an organometallic complex aion as a counter ion, the second polymethine dye having an anion other than the organometallic complex aion as a counter ion, and a formazan metal complex
- the light absorbing agent of the present invention markedly improves the sensitivity to writing light, and as a result, even when a relatively low output writing light is used.
- Optical recording with excellent electrical characteristics such as resolution, resolution, and jitter can be performed.
- a recording layer is constituted by such a light absorbing agent, and visible light having a wavelength of 70 O nm or less, particularly laser light having a wavelength of about 400 to 450 nm or about 63 to 68 nm is used as writing light.
- the optical recording medium according to the present invention which employs an optical recording medium, can record character information, image information, audio information, and other digital information in an incomparably large amount and at a high density, as compared with the existing CD-R. It has the potential to significantly reduce the required price per bit.
- the optical recording medium according to the present invention has high sensitivity to writing light, and thus has the advantage of not necessarily using a high-power laser element for writing.
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Optical Record Carriers And Manufacture Thereof (AREA)
- Thermal Transfer Or Thermal Recording In General (AREA)
- Inks, Pencil-Leads, Or Crayons (AREA)
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020027010396A KR20020080417A (ko) | 2000-12-19 | 2001-12-18 | 광흡수제 |
JP2002552092A JP4173735B2 (ja) | 2000-12-19 | 2001-12-18 | 光吸収剤 |
EP01271421A EP1347030A1 (en) | 2000-12-19 | 2001-12-18 | Light absorbing agent |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000385772 | 2000-12-19 | ||
JP2000-385772 | 2000-12-19 | ||
JP2001-287233 | 2001-09-20 | ||
JP2001287233 | 2001-09-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2002050210A1 true WO2002050210A1 (fr) | 2002-06-27 |
Family
ID=26606120
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2001/011107 WO2002050210A1 (fr) | 2000-12-19 | 2001-12-18 | Agent absorbeur de lumiere |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1347030A1 (ja) |
JP (1) | JP4173735B2 (ja) |
KR (1) | KR20020080417A (ja) |
TW (1) | TW593642B (ja) |
WO (1) | WO2002050210A1 (ja) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003019865A (ja) * | 2001-07-06 | 2003-01-21 | Hitachi Maxell Ltd | 光情報記録媒体 |
WO2005052064A1 (ja) * | 2003-11-27 | 2005-06-09 | Kabushiki Kaisha Hayashibara Seibutsu Kagaku Kenkyujo | シアニン色素 |
WO2005083011A1 (ja) * | 2004-02-27 | 2005-09-09 | Kabushiki Kaisha Hayashibara Seibutsu Kagaku Kenkyujo | シアニン色素 |
WO2005092988A1 (ja) * | 2004-03-26 | 2005-10-06 | Kabushiki Kaisha Hayashibara Seibutsu Kagaku Kenkyujo | シアニン色素 |
WO2006123786A1 (ja) * | 2005-05-20 | 2006-11-23 | Kabushiki Kaisha Hayashibara Seibutsu Kagaku Kenkyujo | シアニン色素および光学記録媒体 |
JP2009255593A (ja) * | 2009-08-10 | 2009-11-05 | Toshiba Corp | 情報記憶媒体、再生方法及び記録方法 |
JP2009269406A (ja) * | 2009-08-10 | 2009-11-19 | Toshiba Corp | 情報記憶媒体、再生方法及び記録方法 |
US7914969B2 (en) | 2005-04-14 | 2011-03-29 | Kabushiki Kaisha Toshiba | Storage medium, reproducing method, and recording method |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
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EP1517316A1 (en) * | 2003-09-19 | 2005-03-23 | Clariant International Ltd. | New azo type dyes for optical data recording |
JP4473768B2 (ja) * | 2005-04-14 | 2010-06-02 | 株式会社東芝 | 情報記憶媒体、再生方法及び記録方法 |
JP2007056114A (ja) * | 2005-08-23 | 2007-03-08 | Tdk Corp | 色素材料、並びに、これを用いた光記録媒体及びその製造方法 |
US8303671B2 (en) | 2007-02-06 | 2012-11-06 | Xerox Corporation | Colorant compounds |
EP2147433A2 (en) * | 2007-05-09 | 2010-01-27 | Clariant Finance (BVI) Limited | Use of indolinium diazamethine cations for optical data recording |
EP2045806A3 (en) * | 2007-10-01 | 2009-05-06 | Clariant International Ltd | Use of indolinium diazamethine cations for optical data recording |
KR100973768B1 (ko) * | 2008-08-19 | 2010-08-04 | (주)동성코메즈 | 열가공기 |
CN103224463B (zh) * | 2013-04-02 | 2016-03-30 | 中国药科大学 | 一种含苯并吲哚鎓的化合物lth02治疗多药耐药细菌感染性疾病的用途 |
CN115124825A (zh) * | 2022-08-01 | 2022-09-30 | 广州市博泰光学科技有限公司 | 一种pc高清光学镜片及其制备方法 |
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- 2001-12-18 KR KR1020027010396A patent/KR20020080417A/ko not_active Application Discontinuation
- 2001-12-18 EP EP01271421A patent/EP1347030A1/en not_active Withdrawn
- 2001-12-18 WO PCT/JP2001/011107 patent/WO2002050210A1/ja not_active Application Discontinuation
- 2001-12-18 JP JP2002552092A patent/JP4173735B2/ja not_active Expired - Fee Related
- 2001-12-18 TW TW090131392A patent/TW593642B/zh not_active IP Right Cessation
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JPS5948189A (ja) * | 1982-09-10 | 1984-03-19 | Ricoh Co Ltd | 熱転写記録材料 |
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Publication number | Priority date | Publication date | Assignee | Title |
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JP2003019865A (ja) * | 2001-07-06 | 2003-01-21 | Hitachi Maxell Ltd | 光情報記録媒体 |
WO2005052064A1 (ja) * | 2003-11-27 | 2005-06-09 | Kabushiki Kaisha Hayashibara Seibutsu Kagaku Kenkyujo | シアニン色素 |
WO2005083011A1 (ja) * | 2004-02-27 | 2005-09-09 | Kabushiki Kaisha Hayashibara Seibutsu Kagaku Kenkyujo | シアニン色素 |
JP4724113B2 (ja) * | 2004-02-27 | 2011-07-13 | 株式会社林原生物化学研究所 | シアニン色素 |
US8350015B2 (en) | 2004-02-27 | 2013-01-08 | Kabushiki Kaisha Hayashibara Seibutsu Kagaku Kenkyujo | Cyanine dye |
WO2005092988A1 (ja) * | 2004-03-26 | 2005-10-06 | Kabushiki Kaisha Hayashibara Seibutsu Kagaku Kenkyujo | シアニン色素 |
JPWO2005092988A1 (ja) * | 2004-03-26 | 2008-02-14 | 株式会社林原生物化学研究所 | シアニン色素 |
US7914969B2 (en) | 2005-04-14 | 2011-03-29 | Kabushiki Kaisha Toshiba | Storage medium, reproducing method, and recording method |
WO2006123786A1 (ja) * | 2005-05-20 | 2006-11-23 | Kabushiki Kaisha Hayashibara Seibutsu Kagaku Kenkyujo | シアニン色素および光学記録媒体 |
JP2009255593A (ja) * | 2009-08-10 | 2009-11-05 | Toshiba Corp | 情報記憶媒体、再生方法及び記録方法 |
JP2009269406A (ja) * | 2009-08-10 | 2009-11-19 | Toshiba Corp | 情報記憶媒体、再生方法及び記録方法 |
Also Published As
Publication number | Publication date |
---|---|
KR20020080417A (ko) | 2002-10-23 |
JPWO2002050210A1 (ja) | 2004-04-22 |
TW593642B (en) | 2004-06-21 |
EP1347030A1 (en) | 2003-09-24 |
JP4173735B2 (ja) | 2008-10-29 |
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