WO2005070665A1 - ガスバリア性フィルム及びガスバリア性積層体 - Google Patents
ガスバリア性フィルム及びガスバリア性積層体 Download PDFInfo
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- WO2005070665A1 WO2005070665A1 PCT/JP2005/001017 JP2005001017W WO2005070665A1 WO 2005070665 A1 WO2005070665 A1 WO 2005070665A1 JP 2005001017 W JP2005001017 W JP 2005001017W WO 2005070665 A1 WO2005070665 A1 WO 2005070665A1
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- gas barrier
- resin
- barrier film
- film
- thin film
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/10—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of paper or cardboard
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/34—Layered products comprising a layer of synthetic resin comprising polyamides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
- C23C14/10—Glass or silica
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B2255/00—Coating on the layer surface
- B32B2255/10—Coating on the layer surface on synthetic resin layer or on natural or synthetic rubber layer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2255/00—Coating on the layer surface
- B32B2255/20—Inorganic coating
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B2255/00—Coating on the layer surface
- B32B2255/26—Polymeric coating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2255/00—Coating on the layer surface
- B32B2255/28—Multiple coating on one surface
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/30—Properties of the layers or laminate having particular thermal properties
- B32B2307/31—Heat sealable
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/40—Properties of the layers or laminate having particular optical properties
- B32B2307/402—Coloured
- B32B2307/4023—Coloured on the layer surface, e.g. ink
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- B32B2307/00—Properties of the layers or laminate
- B32B2307/40—Properties of the layers or laminate having particular optical properties
- B32B2307/412—Transparent
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/54—Yield strength; Tensile strength
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/552—Fatigue strength
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/716—Degradable
- B32B2307/7163—Biodegradable
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/724—Permeability to gases, adsorption
- B32B2307/7242—Non-permeable
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2439/00—Containers; Receptacles
- B32B2439/40—Closed containers
- B32B2439/46—Bags
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2439/00—Containers; Receptacles
- B32B2439/40—Closed containers
- B32B2439/62—Boxes, cartons, cases
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2439/00—Containers; Receptacles
- B32B2439/70—Food packaging
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
- Y10T428/24843—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.] with heat sealable or heat releasable adhesive layer
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
- Y10T428/256—Heavy metal or aluminum or compound thereof
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
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- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
- Y10T428/259—Silicic material
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
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- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/26—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/26—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
- Y10T428/263—Coating layer not in excess of 5 mils thick or equivalent
- Y10T428/264—Up to 3 mils
- Y10T428/265—1 mil or less
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
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- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31652—Of asbestos
- Y10T428/31667—Next to addition polymer from unsaturated monomers, or aldehyde or ketone condensation product
Definitions
- the present invention relates to a gas barrier film and a gas barrier laminate.
- a gas barrier film comprising a plastic film as a base material and an inorganic thin film of aluminum oxide, magnesium oxide, silicon oxide or the like formed on the surface thereof by a vapor deposition method, a sputtering method, a CVD method, or an ion plating method
- a vapor deposition method a vapor deposition method
- a sputtering method a CVD method
- an ion plating method It is widely used for packaging of goods that need to shut off various gases such as water vapor and oxygen, and for wrapping to prevent deterioration of foods, industrial supplies, and pharmaceuticals.
- these gas barrier films have been used for new applications such as liquid crystal display elements, solar cells, electromagnetic wave shields, touch panels, EL substrates, and some of the transparent conductive sheets used in color filters, etc., in addition to packaging. Is also attracting attention.
- the strength of the gas-noble film is generally excellent in the wettability of the inorganic thin film, the film has good printability and is widely
- a gas-barrier laminated film in which a gas-barrier resin such as a mixture of a water-soluble polymer and a metal alkoxide, a vinylidene chloride-based copolymer, and an ethylene-bulcohol copolymer (hereinafter referred to as “EVOH”) is coated on a vapor deposition surface.
- a gas-barrier resin such as a mixture of a water-soluble polymer and a metal alkoxide, a vinylidene chloride-based copolymer, and an ethylene-bulcohol copolymer (hereinafter referred to as “EVOH”) is coated on a vapor deposition surface.
- EVOH ethylene-bulcohol copolymer
- paramagnetic defects in silicon oxide are determined by electron spin resonance (ESR) measurements, which are caused by defects at the interface between Si and SiO, such as Pb center (g value 2.003) and oxygen vacancies in Si ⁇ .
- ESR electron spin resonance
- the E 'center (g value: 2.001) is known due to the defects that occur (Applied physics: m, 852 (2001)), and the radical density of the E' center observed by the ESR method as a silicon oxide thin film formed by the CVD method was specified.
- a gas barrier film has been proposed (for example, see Patent Document 5).
- Patent Document 1 Japanese Patent Application Laid-Open No. 2-299826
- Patent Document 2 JP-A-2-50837
- Patent Document 3 JP-A-8-267637
- Patent Document 4 JP-A-7-80986
- Patent Document 5 Japanese Patent Application Laid-Open No. 2002-192646
- the radical density of the E ′ center is regulated, but while the silicon oxide formed by the vapor deposition method has a structure centered on the Pb center. It is a main component, and it is found that it is difficult to specify the structure at the E 'center, and the radical density at the E' center is not enough to specify the structure to obtain high gas barrier properties.
- the present invention has been made with a focus on powerful circumstances, and an object of the present invention is to provide a gas barrier film having an improved gas barrier property of an inorganic thin film and a laminate using the gas barrier film. is there.
- the present inventors have conducted intensive studies in order to solve the above-mentioned object, and as a result, when vapor-depositing or post-treating a gas barrier film provided with an inorganic thin film under specific conditions, oxidation was performed.
- the present inventors have found that it is possible to improve the gas barrier property by setting the radical density of the Pb center of the silicon film in an appropriate range, and have completed the present invention.
- the gas barrier film of the present invention comprises a substrate and both or one side of the substrate.
- the gas barrier film of the present invention is a gas barrier film having a substrate and an inorganic thin film containing silicon oxide and other metal components formed on both surfaces or one surface of the substrate.
- the Pb center of silicon oxide in the inorganic thin film which is observed by an ESR method, has a radical concentration of 3 ⁇ 10 ′′ 3 ⁇ 10 17 spins / mol or less.
- the gas barrier film of the present invention is a gas barrier film having a substrate and an inorganic thin film containing silicon oxide formed on both surfaces or one surface of the substrate, and is observed by ESR measurement.
- the ratio (S2 / S1) of the Pb center spin density (S2) measured after heating the gas barrier film at 120 ° C. for 24 hours to the Pb center spin density (S1) of the silicon oxide film is 0.5 or more. It is characterized by the following.
- the gas barrier laminate of the present invention is characterized in that a print layer is formed on the inorganic thin film surface of the gas barrier film, and a heat seal layer is laminated on the surface of the print layer. I do.
- the gas barrier laminate of the present invention is characterized in that a print layer is formed on a top coat layer surface of the gas barrier film having a top coat layer provided on the inorganic thin film surface, and heat is applied to the surface of the print layer. It is characterized by being laminated with a seal layer.
- the gas barrier film and the laminate thereof of the present invention exhibit high gas barrier performance while minimizing the increase in the number of steps and costs, and exhibit sufficient gas barrier performance immediately after production, as compared with the prior art. Therefore, it is of great value as satisfying the characteristics required for packaging films in recent years.
- a plastic substrate is preferably used as a substrate used in the present invention.
- the base material made of plastic is made of a resin that can be a normal packaging material.
- resins include polyolefins such as homopolymers or copolymers of ethylene, propylene, butene, etc., amorphous polyolefins such as cyclic polyolefins; polyethylene terephthalate, polyethylene 1,6_naphthalate, etc.
- Polyesters such as nylon 6, nylon 66, nylon 12, and copolymerized nylon; partially hydrolyzed ethylene-vinyl acetate copolymer (EVOH), polyimide, polyetherimide, polysanolone, polyethersulfone, and polyether Substrates made of ether ether ketone, polycarbonate (PC), polybutyral, polyarylate, fluororesin, atalylate resin, and biodegradable resins such as polylactic acid, succinic acid, and starch are included. Among them, polyester, polyamide, polyolefin and biodegradable resin are preferred.
- the substrate of the present invention may be an unstretched substrate or a stretched substrate, preferably using the above resin as a raw material. Further, it may be laminated with another plastic substrate.
- This substrate can be produced by a conventionally known general method, which is preferably a substrate formed into a film in terms of productivity of forming a thin film.
- a raw resin is melted by an extruder, extruded by an annular die or a T die, and quenched to produce a substantially amorphous unoriented film.
- the unstretched film is subjected to a film flow (vertical axis) direction or by a conventionally known general method such as uniaxial stretching, tenter-type sequential biaxial stretching, tenter-type simultaneous biaxial stretching, and tubular simultaneous biaxial stretching.
- a film stretched in at least one direction can be produced.
- the thickness of the film is selected in the range of usually 5500 ⁇ , preferably 10 200 xm, depending on the application such as mechanical strength, flexibility, transparency and the like as a substrate of the laminated structure of the present invention. .
- the width and length of the film are not particularly limited, and can be appropriately selected according to the intended use.
- an anchor coat layer between the base material and the inorganic thin film.
- a method of forming the anchor coat layer a method of applying an anchor coat agent to the surface of the base material can be adopted, and an inorganic thin film is formed on the formed anchor coat layer.
- the anchor coating agent examples include a solvent-soluble or water-soluble polyester resin, an isocyanate resin, a urethane resin, an acrylic resin, a vinyl alcohol resin, an ethylene vinyl alcohol resin, a vinyl modified resin, an epoxy resin, an oxazoline group-containing resin, It is possible to use a modified styrene resin, a modified silicone resin, an alkyl titanate or the like singly or in combination of two or more.
- the thickness of the anchor coat layer is usually 0.0055 ⁇ m, preferably 0.01 ⁇ m. If the thickness exceeds 5 zm, the slipperiness may be poor, or the film may be easily peeled off from, for example, a film-like or sheet-like base material due to the internal stress of the anchor coat layer itself. On the other hand, if the film thickness is less than 0.005 x m, the film thickness may not be uniform.
- the surface of the base material may be subjected to a chemical treatment, a discharge treatment or the like before the application.
- silicon oxide is most preferred because it can be easily formed by a vacuum evaporation method and can stably maintain a high gas barrier property.
- the inorganic thin film may contain other metal components (including a metal compound; the same applies hereinafter) in addition to silicon oxide. Examples of such a metal component include metals such as aluminum, magnesium, potassium, lithium, calcium, sodium, titanium, lead, and tin, and oxides, carbides, and nitrides thereof.
- the thickness of the inorganic thin film is generally 0.1 to 500 nm, preferably 0.5 to 40 nm.
- silicon oxide is used as an inorganic substance, and the density of radioactive holes at the Pb center of the silicon oxide film observed by ESR method measurement is 1 ⁇ 10 16 1 it is necessary N X 10 19 spins is m 3, more preferably 1 X 10 17 - is 8 X 10 18 spins N m 3.
- the radical density at the Pb center can be calculated by the comparative quantitative method using the ESR method.
- the radical density at the Pb center of the inorganic thin film is not increased while introducing a gas such as oxygen at the time of vapor deposition. It can be controlled by controlling the adhesion amount of the thin film. In addition, it can be controlled by irradiating the evaporation material with an electron beam or an ion beam at the time of vapor deposition.
- the radical concentration of the Pb center can be reduced by the heat treatment, the hot water treatment, the electron beam treatment, the ultraviolet treatment, and the radical trapping agent coating treatment after the inorganic thin film is formed, so that the gas barrier property can be improved.
- an acidic solution such as hydrochloric acid, sulfuric acid, nitric acid, acetic acid, and phosphoric acid.
- the acid solution preferably has a pH of 26.5, particularly preferably in the range of 3-6. When the pH is lower than 2, the barrier property is reduced due to damage to the inorganic thin film, and when the pH is higher than 6.5, the effect of reducing the radical is small.
- an inorganic thin film made of silicon oxide and a metal component other than silicon oxide is used, and the radical concentration of the Pb center of silicon oxide in the inorganic thin film is 3 ⁇ 10 14 — 3 X 10 17 spins / mol, preferably 3 X 10 15 — 2 X 10 17 spins / mol.
- the inorganic thin film contains a metal component other than silicon oxide
- the radial concentration of the Pb center of silicon oxide is within this range, the gas emission property becomes good.
- the radical density at the Pb center of silicon oxide is calculated by the comparative quantitative method using the ESR method. If elements other than silicon are mixed in the inorganic thin film, the element ratio of the inorganic thin film is determined using an X-ray photoelectron spectrometer. In addition, the specific gravity and the thickness force of the thin film obtained by peeling the thin film by the density gradient tube method can also calculate the radical concentration of Pb center per 1 mol of silicon.
- the gas barrier film is heated at 120 ° C. for 24 hours with respect to the radical density (S1) of the Pb center of the silicon oxide film observed by the ESR method measurement. It is necessary that the ratio (S2 / S1) of the measured radionuclide density (S2) of the Pb center is 0.5 or more.
- An inorganic thin film having S2ZS1 of 0.5 or more has little change in gas barrier properties with time and has good gas barrier properties. As described above, S2 / S1 can be adjusted to 0.5 or more by controlling the radical density.
- the top coat layer includes a solvent-soluble or water-soluble polyester resin, an isocyanate resin, a urethane resin, an acrylic resin, a vinyl alcohol resin, an EVOH resin, a vinyl-modified resin, an epoxy resin, an oxazoline group-containing resin, and a modified styrene.
- the layer include a resin, a modified silicone resin, an alkyl titanate, and the like, alone or in combination of two or more.
- top coat layer one or more inorganic particles selected from silica sol, alumina sol, particulate inorganic filler and layered inorganic filler are mixed with the one or more resins to improve barrier properties, abrasion properties and slipperiness.
- a top coat agent composed of a resin containing inorganic particles formed by polymerizing the raw material of the resin in the presence of the inorganic particles.
- a top coat layer composed of at least one resin selected from polyester resins, urethane resins, acrylic resins and oxazoline group-containing resins, and silica sol, alumina sol, particulate inorganic fillers and layered inorganic
- a top coat layer made of the above resin obtained by adding one or more selected from fillers or by forming the above resin by polymerization or condensation in the presence of one particle thereof is preferable.
- the raw material of the resin means a monomer constituting the resin when the resin is obtained by polymerization, and a condensed raw material such as diol, diamine, dicarbonic acid and the like when obtained by condensation. I do.
- gas-noorous film of the present invention may be printed on the surface of the inorganic thin film layer or the surface of the top coat layer.
- an aqueous, solvent-based resin-containing ink is used as the print layer.
- the resin to be contained in the ink an acrylic resin, a urethane resin, a polyester resin, a vinyl chloride resin, a vinyl acetate copolymer resin, and a mixture thereof can be used.
- a silane coupling agent may be added to these resins in an amount of 0.01 to 5% by mass to improve the adhesion to the inorganic thin film.
- additives such as an antistatic agent, a light-blocking agent, an ultraviolet absorber, a plasticizer, a lubricant, a filler, a coloring agent, a stabilizer, a lubricant, a defoaming agent, a crosslinking agent, and a blocking agent are used.
- An antioxidant, an antioxidant and the like can be added.
- a well-known printing method such as an offset printing method, a gravure printing method, and a screen printing method can be used.
- Hot air drying, hot roll drying, infrared drying and the like can be used for drying the solvent contained in the printed ink.
- the gas barrier film of the present invention is 40.
- the ratio (P2 / P1) of the water vapor permeability value (P2) measured after 48 hours to the water vapor permeability value (P1) measured after 3 hours by the JIS K 7129B method under the conditions of C and 90% RH is 0.5 or more. Les, preferably to be. This can be achieved by controlling the state of film formation such as evaporation conditions.
- the gas barrier film of the present invention as described above has a gas barrier film having a water vapor permeability of usually 3 g / m 2 / day or less, preferably 2 g / m 2 / day or less, more preferably It is less than 1.2 g / m 2 / day.
- the lower limit is usually in the range of 0.0001 g / m 2 / day or more.
- gas barrier laminate of the present invention a laminate obtained by laminating a heat seal layer made of a heat sealable resin film on the inorganic thin film surface, the top coat layer surface or the print layer surface of the gas barrier film can be preferably exemplified.
- This gas-noble laminate can be easily heat-sealed.
- Heat sealable resins include polyethylene resin, polypropylene resin, EVOH resin, ionomer resin, EAA (ethylene-acrylic acid) resin, EMAA (ethylene-methacrylic acid) resin, EMA (ethylene-methyl acrylate) resin, EMMA Known resins such as (ethylene-methyl methacrylate) resin and EEA (ethylene-ethyl acrylate) resin I can get lost.
- Examples of the gas barrier laminate of the present invention include a laminate obtained by laminating at least one paper and / or plastic film between a printing layer and a heat sealing layer.
- Examples of paper used for the laminate include, but are not particularly limited to, high quality paper, art paper, and coated paper.
- the thickness of the plastic film to be laminated is usually selected in the range of 5500 zm, preferably 10200 x m, depending on the application such as mechanical strength, flexibility and transparency of the laminate.
- the width and length of the film can be appropriately selected without any particular limitation.
- the type of the plastic film is not particularly limited, but a polyolefin-based film is preferable as a heat sealable film. Further, as a finolem having excellent mechanical strength, a biaxially stretched polyester film and a biaxially stretched nylon film are particularly preferable.
- the inorganic thin film layer may be provided between the plastic film and the inorganic thin film layer. It is not limited to power.
- a lamination method a dry lamination method or an extrusion lamination method can be used. in this case
- an adhesive which may be used, an adhesive of urethane type, polyester type, acrylic type or the like is preferably used.
- a layer containing printing or an ultraviolet absorber may be formed on the surface of the laminate and / or between the layers to impart light-shielding properties or ultraviolet-ray blocking properties.
- a layer containing an oxygen absorbent such as iron powder may be formed on the surface of the laminate and between the layers to further prevent oxygen deterioration of the contents.
- the layer containing the oxygen absorbent is preferably located between the inorganic compound layer and the surface in contact with the contents.
- the gas barrier laminate of the present invention is 40.
- the ratio (P2 / P1) of the water vapor permeability value (P2) measured after 48 hours to the water vapor permeability value (P1) measured after 3 hours by the JIS K 7129B method under the conditions of C and 90% RH is 0.5 or more. Les, preferably to be. This is the deposition condition And the like, control of the film formation state, selection of the heat seal layer, selection of paper and plastic film laminated between the print layer and the heat seal layer, and the like.
- the water vapor permeability was evaluated by the following method according to various conditions of JIS K 7129B.
- the gas barrier laminated film of 10 cm square of 10 cm square was dried with 10% RH at a temperature of 40 ° C and a relative humidity of 90% for 3 hours using Modern Control Co., Ltd. W-1 equipment. After the measurement, zero level measurement of the test equipment with dry air was performed. After the measurement was performed for 48 hours, zero level measurement of the test equipment was performed using dry air.
- a gasoline carrier film formed with an inorganic thin film was cut into a size of 3 cm ⁇ 30 cm, inserted into a measurement tube in a cylindrical shape, and the center of the Pb center was measured with JEOL ESR JES_FA300 (trademark).
- the absorption spectrum of the radical was measured, and the radionuclide density per inorganic thin film support was quantified by conversion to an absorption spectrum measured by a spin label manufactured by JEOL Ltd. and TEMPOL (registered trademark).
- the amount of silicon in the inorganic thin film is determined by using an X-ray photoelectron spectrometer (ESCA 850, manufactured by Shimadzu Corporation) using the element of the inorganic thin film.
- the silicon content in the inorganic thin film was determined from the specific gravity determined by the density gradient tube method after separating the thin film, and the thickness determined by the electron beam microscope. From the measured radical density, the radical concentration spins / mol of Pb center per 1 mol of silicon was calculated.
- PET polyethylene terephthalate resin
- a polyethylene terephthalate resin (hereinafter abbreviated as PET; manufactured by Mitsubishi Chemical Corporation, Novavex (trade name)) is melt-extruded by a usual method to form a sheet, and the sheet is stretched at a stretching temperature of 95 ° C and a stretching temperature of 95 ° C. After stretching in the longitudinal direction at an elongation ratio of 3.3, the film was stretched in the transverse direction at an elongation temperature of 110 ° C and an elongation ratio of 3.3 to obtain a biaxially stretched PET film having a thickness of 12 / im.
- PET polyethylene terephthalate resin
- an isocyanate compound manufactured by Nippon Polyurethane Industry Co., Ltd., trade name Coronate L (trademark)
- a saturated polyester manufactured by Toyobo Co., Ltd., trade name Byron 300 (trade name)
- : 1 was applied and dried to form an anchor coat layer having a thickness of 0.1 ⁇ m.
- the oxygen gas was introduced using a vacuum deposition apparatus, 1.3 X 10- 2 Pa evaporated in Guangzhou wave heating scheme Si_ ⁇ under vacuum to form a thin film having a thickness of about 30nm on the anchor coat layer Inorganic on a thin film surface of the inorganic thin film, coated with a 1 X 10_ 3 molZL of dilute hydrochloric acid barcode in one coater, then blown dry 80 ° C3 minutes to obtain a gas barrier film.
- the gas barrier film was measured for water vapor transmission rate and Pb center radio cane density with a g value of 2.003. After heating the gas barrier film in an oven at 120 ° C. for 24 hours, the Pb center radical density was measured. Table 1 shows the measurement results.
- a gas barrier film was obtained in the same manner as in Example 1 except that dilute sulfuric acid having the same concentration was used instead of dilute hydrochloric acid. Table 1 shows the measurement results.
- a gas barrier film was obtained in the same manner as in Example 1 except that 10% of aluminum was mixed with Si ⁇ as a deposition material. Table 1 shows the measurement results.
- a gas barrier film was obtained in the same manner as in Example 1 except that the gas introduced during the vapor deposition was carbon monoxide, and the coating with dilute hydrochloric acid was not performed. Table 1 shows the measurement results. (Example 7)
- the pressure during the deposition was under a vacuum of 6.7 X 10- 3 Pa, the Gasunoku rear film in the same manner in place of the coating of dilute hydrochloric acid, except that heat treatment was carried out between 0.99 ° C, 1 hour as in Example 1 Obtained.
- Table 1 shows the measurement results.
- a gas barrier film was obtained in the same manner as in Example 1 except that the dilute hydrochloric acid was not applied and the coating was performed. Table 1 shows the measurement results.
- Example 1 To obtain a gas gas barrier film except that the concentration of dilute hydrochloric acid and 1 X 10- 7 mol / L in Example 1 in the same manner as in Example 1. Table 1 shows the measurement results.
- S2 / S1 is the value obtained by heating the gas barrier film at 120 ° C for 24 hours with respect to the Pb center-radio cane density (S1) of the silicon oxide film observed by ESR measurement. Shows the ratio of the measured radical density (S2) of the Pb center.
- P2 / P1 represents the ratio of the value of the water vapor transmission rate (P2) measured for 48 hours to the value of the water vapor transmission rate (PI) measured for 3 hours by the JIS K 7129B method at 40 ° C. and 90% RH.
- Table 1 force, et al, radical density of Pb center 1 X 10 16 - 1 X 10 19 gas barrier film of Comparative Example 1 one 3 having a silicon oxide thin film deviates from m 3 N spins the water vapor transmission rate There Kogukatsu, for values of P2 / P1 that low 0.2 0.4 example 1 one fourth radical density of Pb center 1 X 10 16 1 X 10 19 spins N m 3, 6, 7,
- the gas barrier film of Example 5 in which the Pb center of the inorganic thin film has a radical concentration of 3 ⁇ 10 14 —3 ⁇ 10 17 spins / mol has a low water vapor permeability and a high value of P2 / P1. It can be seen that they are excellent and have excellent gas barrier durability.
- the gas barrier film and the laminate of the present invention are used for packaging of articles which need to block various gases such as water vapor and oxygen, for packaging for preventing deterioration of foods, industrial supplies, pharmaceuticals, etc., and for liquid crystal displays. Suitable for applications such as elements, solar cells, electromagnetic wave shields, touch panels, EL substrates, and parts of transparent conductive sheets used in color filters.
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
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- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Laminated Bodies (AREA)
- Physical Vapour Deposition (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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US10/597,425 US7678448B2 (en) | 2004-01-27 | 2005-01-26 | Gas barrier film and gas barrier laminate |
CN2005800031193A CN1910040B (zh) | 2004-01-27 | 2005-01-26 | 阻气性膜以及阻气性叠层体 |
KR1020067014906A KR101159566B1 (ko) | 2004-01-27 | 2005-01-26 | 가스 배리어성 필름 및 가스 배리어성 적층체 |
EP20050709357 EP1712349B1 (en) | 2004-01-27 | 2005-01-26 | Gas barrier film and gas barrier laminate |
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JP2004-018518 | 2004-01-27 | ||
JP2004018518A JP4398265B2 (ja) | 2004-01-27 | 2004-01-27 | ガスバリア性フィルム及びガスバリア性積層体 |
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PCT/JP2005/001017 WO2005070665A1 (ja) | 2004-01-27 | 2005-01-26 | ガスバリア性フィルム及びガスバリア性積層体 |
Country Status (6)
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US (1) | US7678448B2 (ja) |
EP (1) | EP1712349B1 (ja) |
JP (1) | JP4398265B2 (ja) |
KR (1) | KR101159566B1 (ja) |
CN (1) | CN1910040B (ja) |
WO (1) | WO2005070665A1 (ja) |
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JP2012072028A (ja) * | 2010-09-29 | 2012-04-12 | Mitsubishi Materials Corp | 薄膜形成用の蒸着材及び該薄膜を備える薄膜シート並びに積層シート |
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EP2497636A1 (de) * | 2011-03-11 | 2012-09-12 | Deutsche SiSi-Werke Betriebs GmbH | Verbessertes Verbundsystem für Verpackungen |
JP5838578B2 (ja) * | 2011-03-29 | 2016-01-06 | 凸版印刷株式会社 | ガスバリア積層体 |
DE102011017403A1 (de) * | 2011-04-18 | 2012-10-18 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Verfahren zum Abscheiden eines transparenten Barriereschichtsystems |
US20130034689A1 (en) * | 2011-08-05 | 2013-02-07 | Andrew Tye Hunt | Inorganic Nanocoating Primed Organic Film |
JP5966928B2 (ja) * | 2011-09-07 | 2016-08-10 | 東レ株式会社 | ガスバリア性フィルム |
TWI549823B (zh) * | 2013-03-29 | 2016-09-21 | 財團法人工業技術研究院 | 複合膜及其製造方法 |
JP6843848B2 (ja) | 2015-10-07 | 2021-03-17 | ザ コカ・コーラ カンパニーThe Coca‐Cola Company | 改良されたヒートシール性および低減されたフレーバースカルピングを有するバリア積層材 |
CN110316690A (zh) * | 2019-06-11 | 2019-10-11 | 惠科股份有限公司 | 柔性器件缓冲层及其制备方法与柔性器件 |
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2005
- 2005-01-26 KR KR1020067014906A patent/KR101159566B1/ko active IP Right Grant
- 2005-01-26 WO PCT/JP2005/001017 patent/WO2005070665A1/ja active Application Filing
- 2005-01-26 EP EP20050709357 patent/EP1712349B1/en active Active
- 2005-01-26 CN CN2005800031193A patent/CN1910040B/zh active Active
- 2005-01-26 US US10/597,425 patent/US7678448B2/en active Active
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JP2002192646A (ja) * | 2000-03-14 | 2002-07-10 | Dainippon Printing Co Ltd | ガスバリアフィルム |
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Also Published As
Publication number | Publication date |
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KR20060129300A (ko) | 2006-12-15 |
US20080254266A1 (en) | 2008-10-16 |
CN1910040B (zh) | 2012-02-29 |
US7678448B2 (en) | 2010-03-16 |
EP1712349A4 (en) | 2009-01-21 |
JP4398265B2 (ja) | 2010-01-13 |
EP1712349A1 (en) | 2006-10-18 |
EP1712349B1 (en) | 2011-09-14 |
KR101159566B1 (ko) | 2012-06-25 |
JP2005212146A (ja) | 2005-08-11 |
CN1910040A (zh) | 2007-02-07 |
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