WO2004061836A1 - Procede de fabrication de support d'information optique - Google Patents

Procede de fabrication de support d'information optique Download PDF

Info

Publication number
WO2004061836A1
WO2004061836A1 PCT/JP2003/016069 JP0316069W WO2004061836A1 WO 2004061836 A1 WO2004061836 A1 WO 2004061836A1 JP 0316069 W JP0316069 W JP 0316069W WO 2004061836 A1 WO2004061836 A1 WO 2004061836A1
Authority
WO
WIPO (PCT)
Prior art keywords
layer
hard coat
uncured
surface layer
information medium
Prior art date
Application number
PCT/JP2003/016069
Other languages
English (en)
Japanese (ja)
Inventor
Kenji Yoneyama
Kazushi Tanaka
Original Assignee
Tdk Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tdk Corporation filed Critical Tdk Corporation
Priority to JP2004564491A priority Critical patent/JP4185496B2/ja
Priority to AU2003289353A priority patent/AU2003289353A1/en
Publication of WO2004061836A1 publication Critical patent/WO2004061836A1/fr

Links

Classifications

    • 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

Definitions

  • the present invention relates to a method for manufacturing an optical information medium, and more particularly, to a composite eighty-coat coating layer.
  • the composite hard coat layer refers to a hard coat layer provided on the surface of the optical information medium and responsible for abrasion resistance and abrasion resistance, and a hard coat layer provided on the hard coat layer surface. And a surface layer responsible for lubricity and lubricity.
  • the optical information medium includes various types such as a read-only optical disk, an optical recording disk, and a magneto-optical recording disk.
  • optical disks have been required to have higher recording capacities for enormous information processing of moving image information and the like.
  • recording / reproducing becomes extremely susceptible to scratches on the surface of the light transmitting layer on the recording / reproducing laser beam incidence side of the optical disc.
  • a stain such as a fingerprint, a sebum, a sweat, a cosmetic, or the like often adheres to the surface of the optical disc by a user.
  • Such dirt is not easy to remove once adhered, and the adhered dirt causes remarkable trouble in recording and reproduction of information signals. From these facts, it is required that the surface of the light transmitting layer, which is the incident side of one light of the recording / reproducing laser of the optical disc, has excellent abrasion resistance, abrasion resistance, stain resistance and lubricity.
  • optical materials such as a light transmission layer of an optical information medium
  • resin materials such as polymethyl ponate and methyl methacrylate are often used in terms of moldability, transparency and cost.
  • such materials have abrasion resistance *
  • the antifouling property is not sufficient, and because of its high insulating property, it is easily charged, and a large amount of dust adheres to the surface during storage or use of the medium, and it is difficult to record and reproduce optical information. There is also the problem of generating errors.
  • a transparent and scratch-resistant hard coat on the surface of the light transmitting layer of the medium.
  • the hard coat is formed by applying an active energy ray polymerization curable compound having two or more polymerizable functional groups such as (meth) acryloyl groups in the molecule to the surface of the light transmitting layer, and applying this to the active energy such as ultraviolet rays. This is performed by re-curing by irradiation of a line.
  • an active energy ray polymerization curable compound having two or more polymerizable functional groups such as (meth) acryloyl groups in the molecule to the surface of the light transmitting layer, and applying this to the active energy such as ultraviolet rays. This is performed by re-curing by irradiation of a line.
  • the obtained eighteenth dough is excellent in abrasion resistance as compared with a resin film surface such as polycarbonate methyl methacrylate, the level of attainable abrasion resistance is low.
  • Japanese Unexamined Patent Publication (Kokai) No. Hei 10-111118 discloses a method in which a non-crosslinkable fluorine surfactant is kneaded in a hard coat agent. It has been proposed that However, there is a problem that when a non-bridged fluorine-based surfactant is added to the hard coat agent, when the medium is used, for example, when wiping is performed, the surfactant gradually disappears.
  • Japanese Patent Application Laid-Open No. 11-214344 discloses that a fluorine-based polymer is applied to the surface of an optical disk substrate such as a conventional polycarbonate.
  • the fluoropolymer is only physically adsorbed to the substrate surface by van der Waals force, and the adhesion of the fluoropolymer to the substrate surface is extremely poor. Therefore, the durability of surface treatment by fluoropolymer coating Has a big problem.
  • Japanese Patent Application Laid-Open No. 2002-190130 discloses that a hard coat contains metal chalcogenide fine particles such as silica fine particles to improve the abrasion resistance of a hard coat, It is disclosed that a film of a silane coupling agent containing a water-repellent or oil-repellent group is provided on a substrate to improve the antifouling property of the surface.
  • the numerical aperture (NA) of the objective lens for focusing the recording / reproducing laser light has been increased to 0.7 or more, for example, to about 0.85, and the wavelength ⁇ of the recording / reproducing laser light has been increased to 40. Attempts have been made to reduce the laser beam focusing spot diameter by shortening it to about 0 nm, thereby recording large amounts of digital data.
  • NA 0.85
  • the working distance is small.
  • It is remarkably narrower than about 100 Atm compared to the conventional model.
  • the surface of the optical information medium will come into contact with the objective lens or the support that supports it. Get higher. Therefore, it is required to increase the wear resistance of the hard coat surface and at the same time, to lower the friction coefficient. Disclosure of the invention
  • an object of the present invention is to solve the above-mentioned problems of the prior art and provide an inexpensive method for producing an optical information medium having a surface having excellent scratch resistance, abrasion resistance and antifouling property and lubricating property. is there. Summary of the Invention
  • a hard coat layer having scratch resistance and abrasion resistance and a surface of the above-mentioned hard coat layer are provided on the surface of the light transmitting layer on the light / incident side of the recording / reproducing laser.
  • a composite eighteen coat layer including the above-mentioned surface layer having antifouling properties and lubricity optical information having a surface with excellent scratch resistance / abrasion resistance and antifouling properties / lubricity is provided. I found that a medium could be obtained.
  • the present inventors further studied a method for manufacturing an optical information medium, and reached the present invention.
  • the present invention includes the following inventions.
  • An uncured hard coat layer is formed by coating a hard coat agent composition containing an active energy ray-curable component on the light transmitting layer,
  • An uncured surface layer is formed by forming a surface layer material containing an active energy linear curing component having a lubricating and / or antifouling function on the uncured coating layer.
  • the cured coating layer and the uncured surface layer are irradiated with an electron beam, and then irradiated with ultraviolet light to cure both layers, thereby forming a cured hard coat layer and a cured surface layer.
  • a method for manufacturing an optical information medium comprising: This optical information medium is used so that one laser beam for recording or reproduction enters through a surface layer, a hard coat layer and a light transmission layer.
  • the active energy ray-curable component contained in the material for the surface layer is an electron beam-curable component and has a silicone-based substituent and / or a fluorine-based substituent, according to (1) or (2).
  • an active energy ray-curable material is applied and irradiated with ultraviolet rays to form a semi-cured or cured light transmitting layer, and thereafter, a semi-cured or cured light transmitting layer.
  • a light transmitting layer is formed using a resin sheet, and thereafter, a hard coat agent composition is applied on the light transmitting layer to form an uncured hard coat layer.
  • a hard coat agent composition is applied on the light transmitting layer to form an uncured hard coat layer.
  • An optical information medium having at least a recording layer on one surface of a light-transmitting support substrate and having a hard coat layer and a surface layer in this order on the other surface of the light-transmittable support substrate.
  • a hard coat agent thread containing an active energy ray-curable component is applied to form an uncured hard coat layer
  • An uncured surface layer is formed by forming a surface layer material containing an active energy linear curing component having a lubricating and / or antifouling function on the uncured coating layer.
  • the cured hard coat layer and the uncured surface layer are irradiated with an electron beam, and then irradiated with ultraviolet light to cure the two layers, and the cured hard coat layer and the cured surface layer are cured.
  • a method for manufacturing an optical information medium comprising forming. This optical information medium is used such that a laser beam for recording or reproduction is incident through a surface layer, a hard coat layer, and a translucent support substrate.
  • the active energy ray-curable component contained in the surface layer material is an electron beam-curable component and has a poly, a silicone-based substituent and / or a fluorine-based substituent, according to (14) or (15). Of manufacturing an optical information medium.
  • the optical information medium includes various media such as a read-only optical disk, an optical recording disk, and a magneto-optical recording disk. According to the present invention, there is provided an inexpensive method for producing an optical information medium having a composite hard coat layer and having excellent scratch resistance, abrasion resistance, antifouling property and lubricity.
  • FIG. 1 is a schematic cross-sectional view of an example of an optical disk manufactured by the present invention.
  • FIG. 1 is a schematic cross-sectional view of an example of an optical disk manufactured by the present invention.
  • an optical information medium hereinafter, abbreviated as an optical disk
  • a phase-change type optical disk will be described as an example, but the present invention is not limited to this, and can be widely applied regardless of the type of recording layer, such as a read-only optical disk and an optical disk that can record only once. .
  • FIG. 1 is a schematic cross-sectional view of an example of an optical disk manufactured by the present invention.
  • the optical disc (1) includes a reflective layer (3) and a second dielectric layer on the surface of the support base (2) on which the information pits and pre-grooves are formed.
  • (4) a phase-change recording material layer (5) and a first dielectric layer (6) in this order; a light-transmitting layer (8) on the first dielectric layer (6);
  • a hard coat layer (9) and a surface layer (10) are provided on the transmission layer (8).
  • the reflective layer (3), the second dielectric layer (4), the phase-change recording material layer (5), and the first dielectric layer (6) constitute a recording layer (7).
  • Both the hard coat layer (9) and the surface layer (10) are conveniently referred to as a composite hard coat layer.
  • the optical disk (1) is used so that a laser beam for recording or reproduction enters through a surface layer (10), a hard coat layer (9) and a light transmitting layer (8).
  • an optical disc having a recording layer (7) and a recording layer further provided via a spacer layer, and having two or more recording layers is also included in the present invention.
  • the optical disc has a light transmitting layer (8), an optical coating layer (9), and a surface layer (10) on the recording layer farthest from the support base (2).
  • the support base (2) has a thickness of 0.3 to 1.6 mm, preferably 0.5 to 1.3 mm, and has an information pit or an information pit on the surface on which the recording layer (7) is formed. Fine irregularities such as pre-groups are formed.
  • the optical disk (1) is used so that one laser beam enters from the light transmitting layer (8) side, it is not necessary for the supporting substrate (2) to be optically transparent.
  • the transparent material include polyacrylonitrile resin, acryl-based resin such as polymethyl methacrylate (PMMA), and various plastic materials such as polyolefin resin.
  • PMMA polymethyl methacrylate
  • plastic materials such as polyolefin resin.
  • the use of such a flexible material is particularly effective since the occurrence of disk warpage can be suppressed.
  • glass, ceramics, metal, etc. may be used.
  • the concavo-convex pattern is often formed by injection molding.
  • the pattern is formed by a photopolymer method (2P method).
  • a reflective layer (3) is usually formed by a sputtering method.
  • a metal element, a metalloid element, a semiconductor element, or a compound thereof is used alone or in combination.
  • the material may be selected from well-known reflective layer materials such as Au, Ag, CUsAI, and Pd.
  • the reflection layer is preferably formed as a thin film having a thickness of 20 to 200 nm.
  • the phase-change recording material layer (5) is reversibly changed between a crystalline state and an amorphous state by laser light irradiation, and is formed of a material having optical characteristics different between the two states.
  • a material having optical characteristics different between the two states For example, Ge—Sb—Te, In—Sb—Te, Sn—Se—Te, Ge—Te—Sn, In—Se—T U In—Sb—Te, and the like.
  • these materials are selected from Co, Pt, Pd, Au, Ag, Ir, Nb, Ta, V, W, Ti, Cr, Zr, Bi, In, etc.
  • At least one of the metals may be added in a trace amount, or a reducing gas such as nitrogen may be added in a trace amount.
  • the thickness of the recording material layer (5) is not particularly limited, and is, for example, about 3 to 50 nm.
  • the second dielectric layer (4) and the first dielectric layer (6) are formed on both upper and lower surfaces of the recording material layer (5) with the two layers interposed therebetween.
  • the second dielectric layer (4) and the first dielectric layer (6) have a function of mechanically and chemically protecting the recording material layer (5) and a function as an interference layer for adjusting optical characteristics.
  • Each of the second dielectric layer (4) and the first dielectric layer (6) may be composed of a single layer, or may be composed of a plurality of layers.
  • the second dielectric layer (4) and the first dielectric layer (6) are respectively Si, Zn, AI, Ta, Ti, Co, Zr, Pb, Ag, Zn, S It can be formed from oxides, nitrides, sulfides, fluorides, or composites containing at least one of the metals selected from n, Ca, Ce, V, Cu, Fe, and Mg preferable.
  • the extinction coefficient k of each of the second dielectric layer (4) and the first dielectric layer (6) is preferably 0.1 or less.
  • the thickness of the second dielectric layer (4) is not particularly limited, and is preferably, for example, about 20 to 150 nm.
  • the thickness of the first dielectric layer (6) is not particularly limited, and is, for example, about 20 to 200 nm.
  • the reflection can be adjusted by selecting the thickness of both dielectric layers (4) and (6) within such a range.
  • the light transmitting layer (8) is formed using an active energy ray-curable material or using a light transmitting sheet such as a polycarbonate sheet.
  • an active energy ray refers to an electron beam, an ultraviolet ray, or the like.
  • the active energy ray-curable material used for the light transmitting layer (8) is, as long as it is optically transparent, has low optical absorption and reflection in one wavelength region of the laser used, and has low birefringence, Select from curable materials and electron beam curable materials.
  • the active energy ray-curable material is preferably composed of an ultraviolet (electron beam) curable compound or a composition for polymerization thereof.
  • ultraviolet (electron beam) curable compound examples include ester compounds of acrylic acid and methacrylic acid, acryl-based double bonds such as epoxy acrylate and urethane acrylate, aryl-based double bonds such as diaryl phthalate, and maleic acid derivatives.
  • a compound having a molecular weight of less than 2000 is preferable as the ultraviolet-curable monomer, and a compound having a molecular weight of 2000 to 1000 is preferable as the oligomer.
  • These include styrene, ethyl acrylate, ethylene glycol diacrylate, ethylene glycol dimethacrylate, diethylene glycol diacrylate, diethylene glycol methacrylate, 1,6-hexanediol diacrylate, and 1,6-hexanediol. Examples thereof include rudimethacrylate.
  • UV-curable oligomers include oligoester acrylate -Modified acryl of the urethane elastomer.
  • the active energy ray-curable material may include a known photopolymerization initiator.
  • the photopolymerization initiator is not particularly required when an electron beam is used as an active energy ray, but is required when an ultraviolet ray is used.
  • the photopolymerization initiator may be appropriately selected from ordinary ones such as acetate phenone, benzoin, benzophenone, and thioxanthone.
  • examples of the photoradical initiator include Darocure 1173, Irgacure 651, Irgacure 184, and Irgacure 907 (all manufactured by Ciba Specialty Chemicals).
  • the content of the photopolymerization initiator is, for example, about 0.5 to 5% by weight based on the active energy ray-curable component.
  • a composition containing is also preferably used.
  • the epoxy resin an alicyclic epoxy resin is preferable, and in particular, a resin having two or more epoxy groups in a molecule is preferable.
  • alicyclic epoxy resins examples include 3,4-epoxycyclohexylmethyl-1,3,4-epoxycyclohexanecarboxylate, bis- (3,4-epoxycyclohexylmethyl) adipate, bis- (3,4 1-epoxycyclohexyl) adipate, 2- (3,4-epoxycyclohexyl 5,5-spiro 3,4-epoxy) cyclohexane-meta-dioxane, bis (2,3-epoxy)
  • the epoxy equivalent of the alicyclic epoxy resin is not particularly limited, but is preferably from 60 to 300, particularly preferably from 100 to 200, since good curability can be obtained.
  • any known photothion polymerization catalyst may be used, and there is no particular limitation.
  • a complex of at least one metal fluoroborate and boron trifluoride, a metal salt of bis (perfluoroalkylsulfonyl) methane, an aryldiazonium compound, an aromatic onium salt of a Group 6A element , Aromatic onium salt of 5A group element, dicarboxylate of 3A to 5A group element, thiopyrriium salt, MF 6 anion M can be a group 6A element having P, octyl or 513), a triarylsulfonium complex salt, an aromatic didonium complex salt, an aromatic sulfonium complex salt, and the like.
  • the content of the polymerization catalyst for light power is, for example, about 0.5 to 5% by weight based on the active energy ray-curable component. Preferably, it has a viscosity (25 ° C.) of ⁇ 1,000 to 10,000 cp.
  • the active energy ray-curable material is preferably applied onto the first dielectric layer (6) by spin coating.
  • the thickness of the light transmitting layer (8) is, for example, about 10 to 300 after curing, preferably 20 m or more and 200 nm or less, particularly 70 m or more and 150 / m or less, and especially 75 nm or more. It should be less than 150 m.
  • the curable material layer is irradiated with ultraviolet rays to be in a semi-cured or cured state, preferably in a semi-cured state. Thereafter, in the next step, it is preferable to apply a hard coat agent composition on the semi-cured or cured light-transmitting layer to form an uncured 81-coat layer.
  • the amount of UV irradiation at this time depends on the thickness of the light-transmitting layer (8) and the type of active energy ray-curable material, but when a light-transmitting layer in a semi-cured state is obtained, for example, 10 to 150 OmJ / cm 2 , preferably 50 to 100 OmJ / cm 2 .
  • a light-transmitting layer in a semi-cured state can be easily obtained with this amount of ultraviolet irradiation.
  • semi-cured means that a part of the applied curable material is not reacted. Therefore, the degree of physical curing of the light transmitting layer is not particularly limited, and even if the tackiness (tack) on the surface is lost, there is no problem.
  • a light-transmitting layer in a cured state for example, from 1,000 to 50 0 O m J / cm 2, preferably 2 0 0 0-4 0 0 good O m J / cm 2 to.
  • a light transmitting layer in a cured state can be obtained with such an amount of ultraviolet irradiation.
  • the fluidity is lost, the interface is not disturbed by the application of the hard coating agent composition in the next step, and the adhesion to the light transmitting layer is extremely high. This is preferred because a hard coat layer having excellent heat resistance is formed.
  • the ultraviolet irradiation may be performed a plurality of times, and in this case, the integrated irradiation amount of the ultraviolet light may be set to be in the above range.
  • the application operation of the active energy ray-curable material may be performed in a plurality of times, and ultraviolet irradiation may be performed after each application operation.
  • annealing treatment thermal relaxation treatment
  • the stress caused by curing shrinkage is maximized at the moment when the curable material is cured, and is alleviated over time. Therefore, it is preferable to once release the stress caused by the curing shrinkage accumulated on the disk by annealing treatment.
  • the ultraviolet irradiation is performed in a plurality of times, more preferable results can be obtained by performing an enamel treatment step between the ultraviolet irradiation and the next ultraviolet irradiation.
  • the annealing temperature is preferably 60 ° C. or higher, more preferably 80 ° C. or higher. By setting the annealing temperature to 80 ° C or more, the stress can be released more quickly and completely.
  • the upper limit of the annealing temperature depends on the material of the supporting substrate to be used, it is preferable to perform the annealing at a temperature lower by at least 10 ° C. than the glass transition temperature T g of the generally used material.
  • the annealing time depends on the annealing temperature, but is preferably 1 to 5 minutes from the viewpoint of production efficiency.
  • a light transmitting layer is formed using a light transmitting resin sheet.
  • the same active energy ray curable material as that for the light transmitting layer described above is applied on the first dielectric layer (6) to form an uncured resin material layer.
  • a light-transmitting sheet as a light-transmitting layer (8) is placed on the uncured resin material layer, and then the resin material layer is cured by irradiating active energy rays such as ultraviolet rays.
  • a light-transmitting sheet is adhered to form a light-transmitting layer (8).
  • the active energy linear curable material used for the resin material layer a material having a viscosity of 3 to 500 cp (25 ° C.) is preferable.
  • the application of the resin material layer is preferably performed by a spin coating method.
  • the thickness of the resin material layer is, for example, about 1 to 5 Ozm after curing, and preferably 10 to 40 ⁇ .
  • the light-transmitting sheet for example, a polyponic sheet having a desired thickness selected from 50 to 300 / m, preferably 50 to 150 is used. More specifically, the light transmitting layer (8) is formed by mounting a polycarbonate sheet having a desired thickness on an uncured resin material layer in a vacuum (0.1 atm or less). Then, the atmosphere is returned to the atmospheric pressure, and the resin material layer is cured by irradiating ultraviolet rays. A composite hard coat layer comprising a hard coat layer (9) and a surface layer (10) is formed on the light transmitting layer (8).
  • the material for the surface layer containing is described.
  • the active energy ray-curable component contained in the hard coat agent composition is an ultraviolet-curable material provided that it is optically transparent, has low optical absorption and reflection in the laser wavelength range used, and has low birefringence. And an electron beam-curable material, but preferably from an ultraviolet-curable material. That is, the eighteenth drug composition is preferably an ultraviolet-curable composition.
  • the UV curable material contained in the hard coat agent composition is selected from the same UV curable materials for the light transmitting layer (8) described above.
  • a hard coat agent composition Ester compounds of curc acid and methacrylic acid, acrylic double bonds such as epoxy acrylate and urethane acrylate, aryl double bonds such as diaryl phthalate, unsaturated double bonds such as maleic acid derivatives, etc.
  • a radical polymerizable composition containing a monomer, an oligomer, a polymer, or the like containing or introducing a group to be polymerized in the molecule and a photopolymerization initiator can be used.
  • a cationically polymerizable composition containing an epoxy resin and a photo-induced thione polymerization catalyst is also preferably used.
  • the active energy ray-curable I compound contained in the hard coating composition only one kind may be used, or two or more kinds may be used in combination.
  • the hard coat agent composition may contain an inorganic filler as needed to improve abrasion resistance.
  • the inorganic filler include silica, alumina, zirconium, and titania.
  • the average particle size of the inorganic filler is preferably 100 nm or less, particularly when transparency is required, and is more preferably 50 nm or less.
  • the surface of the inorganic filler is modified with a compound having an active energy ray polymerizable group.
  • silica particles described in JP-A-9-100111 and JP-A-2001-187812 preferably used in the present invention.
  • the silica particles described in Japanese Patent Application Laid-Open No. 11-62035 contain a cation-reactive xentanyl group as a reactive group.
  • the silica particles described in JP-A-11-111 contain a radically reactive (meth) acryloyl group as a reactive group.
  • the silica particles described in Japanese Patent Application Laid-Open Publication No. 2001-18782 include a radical-reactive unsaturated double bond such as a (meth) acryloyl group and a force-reactive group such as an epoxy group. And at the same time Including.
  • the wear resistance of the hard coat layer can be further improved.
  • the content of the inorganic filler is, for example, about 5 to 80% by weight in the hard coat agent composition (as solid content). If the inorganic filler is contained in an amount of more than 80% by weight, the film strength of the hard coat layer tends to be weak.
  • the non-polymerizable diluting solvent organic filler, polymerization inhibitor, antioxidant, ultraviolet absorber, light stabilizer, defoamer, leveling agent , Pigments, silicon compounds and the like.
  • the surface layer (10) As a material for the surface layer (10), provided that it is optically transparent, has little optical absorption or reflection in one wavelength region of the laser used, and has low birefringence, it has an antifouling property (water repellency and / or The compound is not particularly limited as long as it has a substituent capable of imparting oil repellency and / or lubricity and has a reactive group capable of polymerizing active energy rays.
  • a silicone-based substituent and a fluorine-based substituent are exemplified.
  • the active energy ray-polymerizable reactive group include an active energy linear polymerizable reactive group such as a (meth) acryloyl group, a vinyl group and a mercapto group, and an active energy ray-polymerizable reactive group such as a cyclic ether group and a vinyl ether group.
  • Energy radiation thione polymerizable reactive groups A silicon-based compound or a fluorine-based compound having such a radical polymerizable reactive group or a thione polymerizable reactive group can be used.
  • silicone compound a moiety having a silicone-based substituent and at least one reactive group selected from a (meth) acryloyl group, a vinyl group, a mercapto group, a cyclic ether group, and a vinyl ether group are included. Specific examples include, but are not limited to, compounds represented by the following formulas (1) to (3). R- [Si (CH 3 ) 20 ] nR (1)
  • fluorine-based compound examples include a fluorine-containing (meth) acrylate compound.
  • a fluorine-containing (meth) acrylate compound for example, 2,2,3,3,3-pentafluoropropyl (meth) acrylate, 2,2,3 , 3-tetrafluoropropyl (meth) acrylate, 2,2,2-trifluoroethyl (meth) acrylate, 1H, 1H, 5H—tactfluoropentyl (meth) acrylate, 3- ( Perfluoro-5-methylhexyl) -2-hydroxypropyl (meth) acrylate, 2- (perfluent octyl) ethyl acrylate, 3-propylfluorooctyl-2-hydroxypropyl (meth) acrylate, 2 -(Perfluorodecyl) ethyl (meth) acrylate, 2- (perfluoro-9-methyloctyl) eth
  • a polymer compound such as perfluoropolyester into which a (meth) acrylate group is introduced, or a fluorine compound having a vinyl group or a mercapto group in place of the (meth) acrylate group is also preferably used.
  • Examples include Foam mbrin Z D0L (alcohol-modified perfluoropolyether (manufactured by Audimont)) diacrylite, full-length light ART3, and fulllight ART4 (Kyoeisha Chemical).
  • fluorine-based compound examples include a compound having a site having a fluorine-containing substituent and at least one reactive group selected from a cyclic ether group and a vinyl ether group. More specifically, 3- (1H, 1H-perfluoro-butyroxy) -1,2-epoxypropane, 3- (1H, 1H-perfluoro-non-oxyxy) -1,2-epoxypropane, 3- (1H , 1H-perfluorodecoxy) -1,2-epoxypropane, 3- (1H, 1H-polyfluoroundexy) -1,2-epoxypropane, 3- (1H, 1H-fluorotetradeci) Mouth xy) -1,2-Epoxypropane, 3- (1H, 1H-perfluent hexadeci-mouth xy) -1,2-Epoxypropane, 1H, 1H, 6H, 6H-Perfluoro -1,6 -Hexanedi
  • the active energy ray-curable compound contained in the surface layer material only one kind may be used, or two or more kinds may be used in combination.
  • the active energy linear curable component contained in the surface layer material is preferably an electron beam curable component.
  • non-polymerizable diluting solvents organic fillers, inorganic fillers, polymerization inhibitors, antioxidants, ultraviolet Absorbers, light stabilizers, defoamers, leveling agents, pigments, silicon compounds, etc.
  • a composite coating comprising a hard coat layer (9) and a surface layer (10) on the light transmitting layer (8) —The formation of the docket layer will be described.
  • the hard coat agent is provided on the surface of the semi-cured or cured light transmitting layer (8) using a curable material, or on the surface of the light transmitting layer (8) made of a light transmitting sheet.
  • the composition is applied to form an uncured octacoat layer.
  • the coating method of the eighteen coating agent is not limited, and various coating methods such as a spin coating method, a dip coating method, and a gravure coating method may be used.
  • the thickness of the hard coat layer after curing is preferably from 1 m to 10 m, more preferably from 1 / m to 5 / m. If the thickness is less than 1 Atm, sufficient surface hardness cannot be imparted to the disk, and if it exceeds 10 m, cracks occur and the warpage of the disk tends to increase.
  • the hard coat agent composition After applying the hard coat agent composition to the surface of the light transmitting layer (8), it is preferable to remove the fluidity of the uncured hard coat layer before forming the surface layer material.
  • the fluidity of the uncured hard coat layer By eliminating the fluidity of the uncured hard coat layer, it is possible to prevent fluctuations in the thickness of the 1-coated layer and deterioration of the surface properties when the surface layer material is formed thereon. It is easy to uniformly form the surface layer material.
  • the solvent contained in the hard coat agent composition may be removed from the hard coat agent layer by heating after application.
  • the annealing temperature is preferably at least 60 ° C, more preferably at least 80 ° C. By setting the annealing temperature to 80 ° C or higher, the stress can be released more quickly and completely.
  • the upper limit of the annealing temperature depends on the material of the supporting substrate to be used, but is preferably at least 10 ° C. lower than the glass transition temperature Tg of the generally used material.
  • the annealing time depends on the annealing temperature, but is preferably 1 to 5 minutes from the viewpoint of production efficiency.
  • the annealing treatment after the application of the 81-coat layer can obtain the effect of releasing the stress that has accumulated on the disc.
  • the annealing time is preferably about 1 to 5 minutes.
  • the uncured hard coat layer in order to eliminate the fluidity of the uncured hard coat layer, it may be heated after application, if necessary, and irradiated with ultraviolet rays to make the hard coat layer semi-cured. At this time, care should be taken to irradiate ultraviolet rays so that the eighteenth layer is not completely cured.
  • semi-cured means that a part of the applied hard coat agent composition has not reacted. Therefore, the physical hardening degree of the hard coat layer is not particularly limited, and the adhesiveness (tack) of the surface may be lost.
  • UV irradiation dose at this time depending on the thickness of the hard Dokoto layer, for example, 1 ⁇ 5 0 O m J / cm 2, may preferably be a 1 ⁇ 2 0 O m J / cm 2. With this amount of UV irradiation, a semi-cured hard coat layer is easily obtained. It is also preferable to perform the same annealing treatment as described above after irradiating the ultraviolet light to the eighteenth coat layer.
  • the surface layer material is formed on the surface of the hard coat layer in an uncured or semi-cured (partially cured) state to form an uncured surface layer.
  • the surface layer may be formed so that the thickness obtained after curing is from 1 nm to 100 nm, preferably from 5 nm to 50 nm. If it is less than 1 nm, the effect of antifouling property and lubricity cannot be obtained so much. If it exceeds 100 nm, the hardness of the lower hard coat layer is not reflected, and the scratch resistance and abrasion resistance Effect is reduced.
  • the film can be formed by applying the surface layer material or by vapor deposition.
  • the surface layer material is diluted with an appropriate solvent, and the coating solution is not limited to various coating methods such as spin coating, dip coating, gravure coating, and spray coating. It is good to apply with.
  • a heat treatment is preferably performed.
  • the solvent evaporates due to the heat treatment, and the surface layer material is leveled by heat to facilitate obtaining a smooth surface.
  • the heat treatment temperature at this time is preferably 60 ° C. or higher, more preferably 80 ° C. or higher.
  • the interval is preferably about 1 to 5 minutes.
  • the solvent it is preferable to select and use a solvent that does not substantially dissolve the active energy linear curing compound in the uncured or semi-cured (partially cured) hard coat layer. Whether or not the hard coat agent composition is substantially dissolved depends not only on the type of the solvent but also on the application method. For example, when a spin coating method is used as a coating method of a surface layer material, in most cases, most of the diluting solvent contained in the coating solution is volatilized at the time of spin coating. Even if a solvent that dissolves is used as a diluting solvent, there is no practical problem.
  • the contact time between the uncured hard coat layer surface and the surface layer material coating solution is long, so that the eighteen coating agent is used. It is necessary to use a solvent that does not dissolve the composition at all or hardly dissolves it.
  • a hard coat layer in an uncured or semi-cured (partially cured) state and an uncured surface layer on its surface are formed.
  • the formed uncured or semi-cured hard coat layer and the uncured surface layer are irradiated with an electron beam, and then irradiated with ultraviolet rays to cure the two layers.
  • the light transmitting layer (8) using a curable material is in a semi-cured state, the light transmitting layer (8) is cured.
  • the irradiation amount of the electron beam is, for example, ⁇ to 50 Mrad, preferably Should be 3 to 30 Mrad.
  • the accelerating voltage of the electron beam is, for example, 20 to 100 kV, preferably 30 to 70 kV.
  • the surface layer is hardened and the hard coat layer is hardened to some extent, especially the hard coat layer near the surface layer is hardened, and these two layers are solid at the interface.
  • the recording layer can be prevented from being damaged by the electron beam.
  • the amount of UV irradiation following electron beam irradiation depends on the thickness of the light-transmitting layer (9), but if the light-transmitting layer (8) using a curable material is in a semi-cured state, 8 ), For example, 500 to 500 mJ / cm 2 , and preferably 100 to 400 mJ / cm 2 .
  • oxygen inhibition inhibitors when irradiating with an electron beam or ultraviolet rays, nitrogen or the like is used so that the oxygen concentration in the atmosphere becomes 500 ppm or less, preferably 200 ppm or less, and more preferably 10 ppm or less. Purge with an active gas is preferably performed. This is to suppress surface hardening inhibition caused by oxygen radicals generated in the irradiation atmosphere.
  • various oxygen inhibition inhibitors may be added to the hard coat agent composition and / or the material for the surface layer. Examples of such an oxygen inhibition inhibitor include, for example, Japanese Patent Application Laid-Open No. 2000-109988, Japanese Patent Application Laid-Open No. 2000-109828 and Japanese Patent Oxygen inhibition inhibitors described in Japanese Patent Application Laid-Open No. 2000-144011 can be used. Needless to say, the oxygen inhibition inhibitor and the oxygen concentration control in the irradiation atmosphere may be used in combination.
  • FIG. 2 is a schematic sectional view of another example of the optical disc manufactured by the present invention.
  • the optical disc (31) illustrated in FIG. 2 has an organic dye layer (25) on one surface of a light-transmitting support substrate (20), a reflective layer (23) on the dye layer (25), and a reflective layer ( 23) has a supporting substrate (21) bonded thereto via an adhesive layer (28), and has a light transmitting hard coat layer (29) on the other surface of the supporting substrate (20). And a conductive surface layer (30).
  • the dye layer (25) and the reflection layer (23) constitute a recording layer.
  • the optical disk (31) is used so that one laser beam for recording or reproduction is incident through the surface layer (30), the hard coat layer (29) and the support base (20).
  • As the recording / reproducing laser beam a laser beam having a wavelength of 65 nm or 660 nm is used.
  • one blue laser beam (wavelength of about 405 nm) is used.
  • optical information media such as a read-only DVD-ROM and a rewritable DVD-RAM
  • DV D-Video As the read-only type of DV D.
  • a metal reflective layer such as AI is formed on top of it, and a protective layer is further formed.
  • Another supporting substrate is bonded on the protective layer via an adhesive layer, and the final optical recording medium is obtained.
  • the recording layer may be configured in the same manner as described for the phase change optical disk.
  • a method of recording / reproducing a medium having such a configuration using a blue laser beam is being studied.
  • a light-transmitting substrate is used as the support base (20).
  • the light-transmitting support substrate (20) is formed by injection molding a polycarbonate resin and forming various information, for example, a pre-prepared group, on its surface, but the material used is not limited to this.
  • resins such as polyolefin resins are also preferably used.
  • it can also be obtained by forming a repreprite or a pre-group on a glass plate by the 2P method.
  • An organic dye dissolved in a solvent is applied to the support base (20) by a spin coating method and dried to form an organic dye layer (25) having a desired thickness.
  • the organic dye is selected from various cyanine dyes, azo dyes, phthalocyanine dyes and the like.
  • a spray method, a screen printing method, a vapor deposition method, or the like can be applied as a method for forming the dye layer.
  • the dye component When the spin coat method is applied, the dye component is dissolved in a solvent and used as an organic dye solution, but a solvent that can sufficiently dissolve the dye and does not adversely affect the permeable substrate is used. Select and use.
  • the concentration is about 0.01 to 10% by weight.
  • the solvent examples include alcohols such as methanol, ethanol, isopropyl alcohol, crude pentofol, pentanol, aryl alcohol, methyl sorb, methyl sorb, ethyl sorb, tetrapropanol, and propane; hexane, heptane, octane, decane, cyclohexane.
  • alcohols such as methanol, ethanol, isopropyl alcohol, crude pentofol, pentanol, aryl alcohol, methyl sorb, methyl sorb, ethyl sorb, tetrapropanol, and propane; hexane, heptane, octane, decane, cyclohexane.
  • Aliphatic or alicyclic hydrocarbon solvents such as hexane, methylcyclohexane, ethylcyclohexane and dimethylcyclohexane; aromatic hydrocarbon solvents such as toluene, xylene and benzene; carbon tetrachloride, Halogenated hydrocarbon solvents such as mouth form, tetrachloroethane and dibromoethane; ether solvents such as ethyl ether, dibutyl ether, diisopropyl ether and dioxane; ketone solvents such as 3-hydroxy-3-methyl-2-butanone Vinegar Ester solvents such as ethyl acid and methyl lactate; water; etc. Among them, those which do not attack the substrate material can be used. These may be used alone, Alternatively, two or more kinds may be used as a mixture.
  • the thickness of the organic dye layer is not particularly limited, but is preferably about 10 to 300 nm, and more preferably about 60 to 250 nm.
  • a reflection layer (23) is provided on the organic dye layer (25).
  • a material for the reflective layer a material having a sufficiently high reflectance at the wavelength of the reproduction light, for example, an element such as Au, Ag, Cu, Al, Ni, Pd, Cr, Pt, alone or as an alloy. Used. In addition to the above, the following may be included. For example, Mg, Se, Hf, V, Nb, Ru, W, Mn, ResFe, Co, Rh, Ir, Zn, Cd, Ga, ln, Si, Ge , Te, Pb, Po, Sn, Bi and the like, and metalloids.
  • the formation of the reflective layer includes, for example, a sputtering method, an ion plating method, a chemical vapor deposition method, and a vacuum vapor deposition method, but is not limited thereto. Further, a known inorganic or organic intermediate layer or adhesive layer may be provided on the substrate or below the reflective layer to improve the reflectance and the recording characteristics.
  • the thickness of the reflective layer is not particularly limited, but is preferably about 10 to 300 nm, and particularly preferably about 80 to 200 nm.
  • the support base (21) is usually bonded onto the reflective layer (23) via an adhesive layer (28) also serving as a protective layer.
  • an adhesive layer (28) also serving as a protective layer.
  • the material of the adhesive layer (28) is not particularly limited as long as the two substrates (21) and (20) can be adhered and the reflective layer is protected from external force.
  • the adhesive include a thermoplastic resin, a thermosetting resin, and an ultraviolet curable resin.
  • a thermoplastic resin, a thermosetting resin, or the like can be formed by dissolving in a suitable solvent, applying a coating solution, and drying.
  • the ultraviolet curable resin can be formed by preparing a coating solution as it is or by dissolving it in an appropriate solvent, applying the coating solution, and irradiating ultraviolet rays to cure the resin.
  • acrylate resins such as urethane acrylate, epoxy acrylate, and polyester acrylate can be used. These materials alone are Alternatively, they may be used as a mixture, or may be used as a multilayer film as well as a single layer.
  • a coating method such as a spin coat method or a cast method is used similarly to the recording layer.
  • Adhesives used for bonding include hot melt adhesives, UV-curable adhesives, heat-curable adhesives, adhesive adhesives, and the like, and a suitable method, such as a roll coater method, is used. And screen printing, spin coating, etc., but in the case of DVD-R, screen printing and UV curing adhesives are used to determine comprehensively based on workability, productivity, disc characteristics, etc. A spin coat method is used.
  • a composite eighteenth layer comprising a hard coat layer (29) and a surface layer (30) is formed.
  • a hard coat agent composition containing an active energy linear curable component used for the hard coat layer (29), and a surface containing an active energy ray curable component having a lubricating and / or antifouling function used for the surface layer (30) The layer materials are the same as those described in the manufacture of the optical disk in FIG.
  • the formation of the hard coat layer (29) and the surface layer (30) can be performed in the same manner as described in the manufacture of the optical disk of FIG.
  • the hard coat layer (29) may be formed to have a thickness of 1 m or more and 10 ix m or less, preferably 1 ⁇ m or more and 5 ⁇ m or less.
  • the surface layer (30) is preferably formed to have a thickness of 1 nm or more and 100 nm or less.
  • the surface is thin enough to reflect the hardness on the outermost surface, and has a good antifouling property and a good lubricating property.
  • good adhesion between the hard coat layer (29) and the surface layer (30) can be obtained.
  • an optical information medium having a composite hard coat layer having excellent scratch resistance, abrasion resistance and stain resistance, and excellent lubricity and excellent durability can be obtained.
  • Example 1 Light transmitting layer made of active energy ray-curable material
  • the reflective layer (3) surface by a sputtering method using the AI 2 0 3 data one rodents Bok, to form the second dielectric layer having a thickness of 2 0 nm (4).
  • a recording material layer (5) having a thickness of 12 nm was formed on the surface of the second dielectric layer (4) by a sputtering method using an alloy target made of a phase change material.
  • the composition of the recording material layer (5) (atomic ratio) was S b T 4 Te 18 (G e 7 I n,) and.
  • a first dielectric layer was formed by sputtering using a ZnS (80 mol%)-Si 0 2 (20 mol%) target. 6) was formed.
  • the light transmitting layer (8) was formed to have a thickness of 98 Aim after complete curing. (Light transmitting layer: composition of ultraviolet curable material)
  • Tetrahydrofurfurylcreatine 25 parts by weight
  • Photopolymerization initiator (1-hydroxycyclohexyl phenyl ketone) 3 parts by weight
  • cure with ultraviolet / electron beam of the following composition After the mold hard coat agent was applied by spin coating, the diluting solvent inside the coating was removed by heating at 80 ° C for 3 minutes in air to form an uncured hard coat layer (9). .
  • Reactive group-modified colloidal silica (dispersion medium: propylene glycol monomethyl ether acetate, nonvolatile content: 40% by weight) 100 parts by weight
  • the hard coat layer (9) and the surface layer (10) were simultaneously cured by irradiating an electron beam under a nitrogen stream.
  • an electron beam irradiation device MinEB manufactured by Toyo Ink Mfg. Co., Ltd.
  • the electron beam acceleration voltage was 50 kV
  • the irradiation dose was 100 kGy (10 Mrad).
  • the oxygen concentration in the irradiation atmosphere was 80 ppm.
  • the light transmission layer (8) and the hard coat layer (9) were completely cured by irradiating ultraviolet rays (irradiation amount: 300 mJ / cm 2 ) under a nitrogen stream.
  • the oxygen concentration in the irradiation atmosphere was 80 ppm.
  • the thickness of the hard coat layer (9) was 2.1 m, and the thickness of the surface layer (10) was about 25 nm.
  • the film thickness of the surface layer was measured by X-ray fluorescence analysis (XRF) using perfluoropolyether (Denkin Industries, Demnum) as a standard substance. Thus, a disk sample was obtained.
  • the hard coat layer (9) was irradiated with ultraviolet light (irradiation amount: 8 OmJ / cm 2 ).
  • a disk sample was obtained in the same manner as in Example I except that the coating was partially cured.
  • the thickness of the Hachido coat layer (9) was 2.1 / zm, and the thickness of the surface layer (10) was about 25 nm.
  • the irradiation amount of ultraviolet rays in forming the light transmitting layer (8) was changed to 300 mJ / cm 2 to completely cure the light transmitting layer (8) before applying the hard coat agent, and After the formation of the hard coat layer (9) and before the application of the surface layer (10), the hard coat layer (9) was partially cured by irradiating ultraviolet rays (irradiation amount: 80 mJ / cm 2 ).
  • a disk sample was obtained in the same manner as in Example 1.
  • the thickness of the hard coat layer (9) was 2.1 m, and the thickness of the surface layer (10) was about 25 nm.
  • Example 4 Light transmitting layer using light transmitting sheet
  • a radical polymerizable UV-curable resin solution (Mitsubishi Rayon Co., Ltd., 4X108E, solvent: butyl acetate) is applied to the surface of the first dielectric layer (6) by spin coating and cured.
  • a resin material layer was formed so as to have a later thickness of 1.0 // m.
  • a polycarbonate sheet having a thickness of 100 m was placed on the resin material layer.
  • the polycarbonate sheet Pure Ace manufactured by Teijin Limited using a casting method was used. Subsequently, the atmosphere was returned to the atmospheric pressure, and the resin material layer was cured by irradiating ultraviolet rays, whereby the poly-polycarbonate sheet was adhered to obtain a light transmitting layer (8).
  • Example 2 Subsequent operations were performed in the same manner as in Example 1. That is, an uncured 81-coat layer (9) is formed on the light-transmitting layer (8), then an uncured surface layer (10) is formed, and then the electron beam is irradiated under a nitrogen stream. As a result, the rehard coat layer (9) and the surface layer (10) were simultaneously cured.
  • the electron beam acceleration voltage was 50 kV and the irradiation dose was 100 kGy (10 Mrad).
  • the oxygen concentration in the irradiation atmosphere was 80 ppm.
  • the hard coat layer (9) was completely cured by irradiating ultraviolet rays (irradiation amount: 300 mJ / cm 2 ) under a nitrogen stream. The oxygen concentration in the irradiation atmosphere was 80 ppm.
  • the thickness of the hard coat layer (9) was 2.1 ms and the thickness of the surface layer (10) was about 25 nm.
  • a disk sample was obtained in the same manner as in Example 1 except that the final ultraviolet irradiation (irradiation amount: 300 OmJ / cm 2 ) was not performed.
  • Electron beam irradiation [Irradiation dose: 1 OO kGy (1 OMrad) 3] A disk sample was obtained in the same manner as in Example 1 except that irradiation was not performed. [Comparative Example 3]
  • the hard coat layer (9) was irradiated with ultraviolet light (irradiation amount: 300 OmJ / cm 2 ).
  • a disk sample was obtained in the same manner as in Example 1 except that the sample was completely cured.
  • a solvent was included.
  • the test was performed after the sample surface was slid with an L solution.
  • the sliding conditions were as follows. That is, a nonwoven fabric (made by Asahi Kasei Corporation, Bencott Lint Free)
  • Table 1 shows the above measurement results.
  • Comparative Example 1 the final UV irradiation was not performed, so that the abrasion resistance was remarkably poor.
  • the antifouling property was extremely poor because no electron beam irradiation was performed.
  • Comparative Example 3 since the surface layer was applied after the hard coat layer was completely cured, the antifouling property was extremely poor.
  • the present invention is applied not only to an optical disk having a recording layer of a phase change type, but also to a read-only optical disk and a write-once optical disk. Therefore, the above-described embodiment is merely an example in every respect and should not be construed as limiting. In addition, all modifications that fall within the equivalent scope of the claims are within the scope of the present invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacturing Optical Record Carriers (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)

Abstract

L'invention concerne un procédé de fabrication de support d'information optique à surface qui présente une excellente résistance à l'abrasion et à l'usure, qui a des propriétés antisalissure et de pouvoir lubrifiant, et que l'on produit à faible coût. On décrit un procédé de fabrication de support d'information optique (1) qui comporte au moins une couche d'enregistrement (7), une couche de transmission de la lumière (8), une couche de revêtement dur (9) et une couche de surface (10) établie séquentiellement sur un substrat support (2), dans cet ordre. On forme une couche de revêtement dur non traitée sur la couche de transmission de la lumière (8) en appliquant une composition de matériau de revêtement dur qui renferme une composante de traitement par faisceau d'énergie actif, puis une couche de surface non traitée est formée sur la couche de revêtement dur non traitée par établissement d'un film de matériau de couche de surface renfermant une composante de traitement par faisceau d'énergie actif à fonction de lubrification et/ou antisalissure, et enfin on irradie ces deux couches avec un faisceau électronique et ensuite une lumière ultraviolette, aux fins de traitement, pour donner la couche de revêtement dur (9) et la couche de surface (10).
PCT/JP2003/016069 2002-12-27 2003-12-16 Procede de fabrication de support d'information optique WO2004061836A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2004564491A JP4185496B2 (ja) 2002-12-27 2003-12-16 光情報媒体の製造方法
AU2003289353A AU2003289353A1 (en) 2002-12-27 2003-12-16 Method for manufacturing optical information medium

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2002380301 2002-12-27
JP2002-380301 2002-12-27

Publications (1)

Publication Number Publication Date
WO2004061836A1 true WO2004061836A1 (fr) 2004-07-22

Family

ID=32708432

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2003/016069 WO2004061836A1 (fr) 2002-12-27 2003-12-16 Procede de fabrication de support d'information optique

Country Status (4)

Country Link
JP (1) JP4185496B2 (fr)
AU (1) AU2003289353A1 (fr)
TW (1) TW200423111A (fr)
WO (1) WO2004061836A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009113278A1 (fr) * 2008-03-10 2009-09-17 パナソニック株式会社 Procédé de fabrication d'un support d'enregistrement d'informations optiques et support d'enregistrement d'informations optiques

Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57113433A (en) * 1981-01-07 1982-07-14 Mitsubishi Rayon Co Ltd Manufacture of imformation recording body
JPH0419839A (ja) * 1990-05-14 1992-01-23 Kao Corp 記録媒体の製造方法
JPH06162568A (ja) * 1992-11-19 1994-06-10 Sony Corp 光記録媒体
JPH06329819A (ja) * 1993-05-20 1994-11-29 Three Bond Co Ltd 帯電防止性保護膜のコーテイング方法
JPH07254169A (ja) * 1994-03-15 1995-10-03 Kao Corp 表面処理基体
JPH0863784A (ja) * 1994-06-13 1996-03-08 Matsushita Electric Ind Co Ltd 光記録媒体及び光記録媒体の使用方法
JPH10110118A (ja) * 1996-08-13 1998-04-28 Toray Ind Inc 防汚性ハードコート剤および光記録媒体
JPH10287974A (ja) * 1997-04-15 1998-10-27 Matsushita Electric Ind Co Ltd 薄膜形成方法及び薄膜形成装置
JPH11162015A (ja) * 1997-07-29 1999-06-18 Victor Co Of Japan Ltd 情報記録坦体及びその製造方法
JP2001344821A (ja) * 2000-05-31 2001-12-14 Asahi Glass Co Ltd ハードコート層を有する光ディスクおよびその製造方法
JP2002157782A (ja) * 2000-09-05 2002-05-31 Tdk Corp 光情報媒体およびその試験方法
JP2002157784A (ja) * 2000-11-20 2002-05-31 Asahi Glass Co Ltd ハードコート層を有する青色レーザーディスクおよびその製造方法
JP2002230837A (ja) * 2001-01-30 2002-08-16 Asahi Glass Co Ltd ハードコート層を有する青色レーザーディスク（（登録商標）およびその製造方法
JP2002269821A (ja) * 2001-03-06 2002-09-20 Fuji Photo Film Co Ltd 光情報記録媒体
JP2002367229A (ja) * 2001-03-23 2002-12-20 Matsushita Electric Ind Co Ltd 光学的情報記録媒体およびその製造方法

Patent Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57113433A (en) * 1981-01-07 1982-07-14 Mitsubishi Rayon Co Ltd Manufacture of imformation recording body
JPH0419839A (ja) * 1990-05-14 1992-01-23 Kao Corp 記録媒体の製造方法
JPH06162568A (ja) * 1992-11-19 1994-06-10 Sony Corp 光記録媒体
JPH06329819A (ja) * 1993-05-20 1994-11-29 Three Bond Co Ltd 帯電防止性保護膜のコーテイング方法
JPH07254169A (ja) * 1994-03-15 1995-10-03 Kao Corp 表面処理基体
JPH0863784A (ja) * 1994-06-13 1996-03-08 Matsushita Electric Ind Co Ltd 光記録媒体及び光記録媒体の使用方法
JPH10110118A (ja) * 1996-08-13 1998-04-28 Toray Ind Inc 防汚性ハードコート剤および光記録媒体
JPH10287974A (ja) * 1997-04-15 1998-10-27 Matsushita Electric Ind Co Ltd 薄膜形成方法及び薄膜形成装置
JPH11162015A (ja) * 1997-07-29 1999-06-18 Victor Co Of Japan Ltd 情報記録坦体及びその製造方法
JP2001344821A (ja) * 2000-05-31 2001-12-14 Asahi Glass Co Ltd ハードコート層を有する光ディスクおよびその製造方法
JP2002157782A (ja) * 2000-09-05 2002-05-31 Tdk Corp 光情報媒体およびその試験方法
JP2002157784A (ja) * 2000-11-20 2002-05-31 Asahi Glass Co Ltd ハードコート層を有する青色レーザーディスクおよびその製造方法
JP2002230837A (ja) * 2001-01-30 2002-08-16 Asahi Glass Co Ltd ハードコート層を有する青色レーザーディスク（（登録商標）およびその製造方法
JP2002269821A (ja) * 2001-03-06 2002-09-20 Fuji Photo Film Co Ltd 光情報記録媒体
JP2002367229A (ja) * 2001-03-23 2002-12-20 Matsushita Electric Ind Co Ltd 光学的情報記録媒体およびその製造方法

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009113278A1 (fr) * 2008-03-10 2009-09-17 パナソニック株式会社 Procédé de fabrication d'un support d'enregistrement d'informations optiques et support d'enregistrement d'informations optiques
US8211522B2 (en) 2008-03-10 2012-07-03 Panasonic Corporation Manufacturing method for optical information recording medium and optical information recording medium
JP5350268B2 (ja) * 2008-03-10 2013-11-27 パナソニック株式会社 光情報記録媒体の製造方法及び光情報記録媒体

Also Published As

Publication number Publication date
AU2003289353A1 (en) 2004-07-29
JPWO2004061836A1 (ja) 2006-05-18
JP4185496B2 (ja) 2008-11-26
TW200423111A (en) 2004-11-01

Similar Documents

Publication Publication Date Title
JP4590849B2 (ja) ハードコート剤組成物及びこれを用いた光情報媒体
JP4779293B2 (ja) ハードコート剤組成物及びこれを用いた光情報媒体
JP4319522B2 (ja) 光情報媒体
JP4784723B2 (ja) ハードコート剤組成物及びこれを用いた光情報媒体
JP5315681B2 (ja) ハードコート用組成物、ハードコート層を有する物体およびその製造方法
KR100646557B1 (ko) 복합 하드 코트층이 부여된 물체 및 복합 하드 코트층의형성방법
WO2003055679A1 (fr) Article possedant une couche de revetement dur composite et procede de formation de cette couche
JP2009096927A (ja) 活性エネルギー線硬化性樹脂組成物およびその積層体
JP2009143048A (ja) ハードコート層および光透過層を有する積層体およびその製造方法
JP4496766B2 (ja) 保護層の形成方法及び光情報媒体の製造方法
US7153558B2 (en) Optical information medium and production method therefor
JP4111818B2 (ja) 複合ハードコート層付き物体及び複合ハードコート層の形成方法
JP2003315503A (ja) 複合ハードコート層付き物体及び複合ハードコート層の形成方法
WO2004061836A1 (fr) Procede de fabrication de support d'information optique
JP2008287883A (ja) 光情報媒体
JP4815790B2 (ja) コーティング剤組成物及びこれを用いた光情報媒体
JP4794116B2 (ja) 光情報媒体
WO2004010425A1 (fr) Composition durcissant sous l'effet du rayonnement actinique pour support optique d'informations, et support optique d'informations en etant fait

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): BW GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: 2004564491

Country of ref document: JP

122 Ep: pct application non-entry in european phase