WO2014007313A1 - ガラス樹脂積層体 - Google Patents
ガラス樹脂積層体 Download PDFInfo
- Publication number
- WO2014007313A1 WO2014007313A1 PCT/JP2013/068335 JP2013068335W WO2014007313A1 WO 2014007313 A1 WO2014007313 A1 WO 2014007313A1 JP 2013068335 W JP2013068335 W JP 2013068335W WO 2014007313 A1 WO2014007313 A1 WO 2014007313A1
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- WIPO (PCT)
- Prior art keywords
- glass
- resin
- layer
- glass sheet
- resin laminate
- Prior art date
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- Ceased
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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
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
- B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific 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
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
- B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
- B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
- B32B17/10009—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets
- B32B17/10018—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets comprising only one glass sheet
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
- B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
- B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
- B32B17/10009—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets
- B32B17/10036—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets comprising two outer glass sheets
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
- B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
- B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
- B32B17/1055—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer
- B32B17/10678—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer comprising UV absorbers or stabilizers, e.g. antioxidants
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- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
- B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
- B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
- B32B17/1055—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer
- B32B17/10743—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer containing acrylate (co)polymers or salts thereof
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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
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
- B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
- B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
- B32B17/1055—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer
- B32B17/10752—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer containing polycarbonate
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
- B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
- B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
- B32B17/1055—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer
- B32B17/1077—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer containing polyurethane
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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
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
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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
- B32B2307/412—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
- B32B2307/70—Other properties
- B32B2307/712—Weather resistant
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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
- B32B2333/00—Polymers of unsaturated acids or derivatives thereof
- B32B2333/04—Polymers of esters
- B32B2333/08—Polymers of acrylic acid esters, e.g. PMA, i.e. polymethylacrylate
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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
- B32B2369/00—Polycarbonates
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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
- B32B2457/00—Electrical equipment
- B32B2457/20—Displays, e.g. liquid crystal displays, plasma displays
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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
- Y10T428/266—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension of base or substrate
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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
- Y10T428/269—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension including synthetic resin or polymer layer or component
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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
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31507—Of polycarbonate
Definitions
- the present invention relates to a flat panel display such as a building, a vehicle, a frame, an exhibition case, a liquid crystal display or an organic EL display, a glass substrate of a device such as a solar battery, a lithium ion battery, a touch panel or electronic paper, a digital signage, and a use thereof. More specifically, the present invention relates to a glass material used for a cover glass of a device such as a light guide plate and organic EL lighting, a pharmaceutical package, and the like.
- Glass plate is excellent in weather resistance, chemical resistance, scratch resistance, and is transparent and excellent in daylighting, so it can be used for windows in general buildings and high-rise buildings, lighting from roofs, frames and display cases, automobiles and trains. Widely used in window materials such as vehicles.
- glass is a brittle material, and has a problem that it is easily damaged by physical impact. It is known that when a flying object or a high-speed object hits a glass plate, it is easily damaged, and it is also easily damaged by thermal shock.
- Patent Document 1 proposes a laminated glass (glass resin laminate) configured by sequentially laminating glass / polyvinyl butyral / polycarbonate / polyvinyl butyral / glass.
- Patent Document 1 glass that is weak against physical impact is supported by a transparent resin material, thereby preventing breakage and scattering of the glass plate, and sandwiching the transparent resin material with a glass plate having excellent weather resistance and scratch resistance.
- the transparent resin material is prevented from being exposed to the external environment, and the respective advantages of the glass plate and the transparent resin material are complemented.
- the glass laminate of Patent Document 1 when the glass laminate of Patent Document 1 is observed from the front, it is colorless and transparent, but when observed from an oblique direction (an angled direction), it may be slightly colored yellow.
- the glass laminate is used as a backlight for a liquid crystal display or a light guide plate such as an advertising board or a guide plate by applying light from an end of the glass laminate described in Patent Document 1 with a light source such as an edge light. In some cases, it was perceived as yellow as it moved away from the edge light.
- resin materials are rich in color variations compared to glass, and various materials such as colorless and highly transparent materials, transparent colored products and opaque colored products have been commercialized and sold and used in various places. Yes. These resin materials are used not only for windows having transparency, but also for colored articles as covers and cases for decorative items. Also in this case, as described above, there is a problem that the color is slightly yellow unlike the original color of the resin material.
- the present invention was made to solve the problems of the prior art as described above, and prevents yellowing, while maintaining the original color characteristics of the resin material, and is resistant to scratches and the environment. It aims at obtaining the laminated body by which the fault of resin sheets, such as property, was supplemented with the glass sheet of the surface layer.
- the present inventors have found that even when the visible light transmittance of the transparent adhesive layer exceeds 90%, the short wavelength side end (380 nm to 450 nm) or the long wavelength of the visible light wavelength region It has been found that when the transmittance at the side end (650 nm to 780 nm) is less than 90%, the glass resin laminate is observed with a tint. In the transparent adhesive, the transmittance on the short wavelength side tends to be particularly low, and it has been found that the glass resin laminate is observed yellowish due to this influence, and the present invention has been achieved.
- the invention according to claim 1 includes a layer structure composed of a glass sheet, a layer composed of a resin layer, and an adhesive layer that bonds the glass sheet and the resin layer, and has a laminated structure of at least three layers.
- the adhesive layer has a spectral transmittance of 90% or more in a wavelength region of at least 430 nm to 680 nm.
- the spectral transmittance here means the sum of the parallel light transmittance and the diffuse light transmittance at each wavelength.
- the adhesive layer has a spectral transmittance of 90% or more in a wavelength range of at least 430 nm to 680 nm, it means the spectral transmittance at the thickness when the thickness of the adhesive layer changes.
- the spectral transmittance is 90% or more with the thickness of all layers added.
- the invention according to claim 2 is the glass resin laminate according to claim 1, wherein the glass sheets of both outermost layers, and the one resin layer interposed between the glass sheets of the outermost layers, It has a five-layer structure composed of the two outermost glass sheets and the two adhesive layers that adhere the resin layers.
- the invention according to claim 3 is the glass resin laminate according to claim 1 or 2, wherein the resin layer is transparent.
- that the resin layer is transparent means that the visible light transmittance is 90% or more.
- the visible light transmittance in the state where the thickness of all the resin layers is added is It means 90% or more.
- the invention according to claim 4 is the glass resin laminate according to any one of claims 1 to 3, wherein the thickness of the adhesive layer is 50 to 800 ⁇ m.
- the invention according to claim 5 is the glass resin laminate according to any one of claims 1 to 4, characterized in that the glass sheet is non-alkali glass.
- the invention according to claim 6 is the glass resin laminate according to any one of claims 1 to 5, wherein the glass sheet is produced by an overflow down draw method.
- the invention according to claim 7 is the glass resin laminate according to any one of claims 1 to 6, wherein the resin layer is a polycarbonate material or an acrylic material.
- the invention according to claim 8 is the glass resin laminate according to any one of claims 1 to 7, wherein the glass sheet has a thickness of 100 to 300 ⁇ m.
- the present invention includes a layer composed of a glass sheet, a layer composed of a resin layer, and an adhesive layer that bonds the glass sheet and the resin layer, and includes at least three layers.
- the original color of the resin layer is not impaired, and the color characteristics of the resin layer can be sufficiently exhibited.
- the said glass sheet of both outermost layers, the said one resin layer interposed between the glass sheets of both said outermost layers, the glass sheet of said both outermost layers, and said resin Since it has a five-layer structure composed of two adhesive layers that adhere to each other, by sandwiching the resin layer with a glass sheet having excellent weather resistance and scratch resistance, weather resistance and scratch resistance can be achieved. It is possible to prevent the inferior resin layer from being exposed to the external environment. Moreover, the glass layer which is excellent in touch and texture can be used as the outermost layer.
- the resin layer is transparent, it can be a colorless and highly transparent glass resin laminate.
- the thickness of the adhesive layer is 50 to 800 ⁇ m, the difference in thermal expansion between the glass sheet and the resin layer is prevented while preventing the glass resin laminate from exhibiting a yellow color. Can be absorbed by the adhesive layer, and the glass sheet and the resin layer can be prevented from being peeled off due to thermal expansion.
- the said glass sheet is an alkali free glass, since the weather resistance of a glass sheet and chemical resistance improve, it shall be set as the glass resin laminated body suitable for a long-term use. Can do.
- the glass sheet is produced by the overflow downdraw method, a glass sheet having excellent surface quality can be produced in large quantities and at low cost.
- the glass sheet produced by the overflow downdraw method does not need to be polished or ground.
- the said resin layer is a polycarbonate material or an acrylic material, it is excellent in transparency, and when using an acrylic material especially, it is set as the glass resin laminated body excellent in the light guide characteristic. be able to.
- the glass sheet has a thickness of 100 to 300 ⁇ m, a lightweight glass resin laminate can be obtained.
- a glass sheet 2 and a resin layer 3 are bonded with an adhesive layer 4 as shown in FIG.
- silicate glass is used, preferably silica glass, borosilicate glass, soda lime glass, and aluminosilicate glass, and most preferably non-alkali glass.
- glass is generally excellent in weather resistance, when an alkali component is contained in the glass sheet 2, if the glass sheet 2 is continuously used in a situation where it has been exposed to the external environment for a long period of time, cations are dropped on the surface. However, a so-called soda blowing phenomenon may occur and the structure may become rough, and the translucency of the glass sheet 2 may be deteriorated.
- the alkali-free glass is a glass that does not substantially contain an alkali component (alkali metal oxide), and specifically, a glass having a weight ratio of the alkali component of 1000 ppm or less. It is.
- the weight ratio of the alkali component in the present invention is preferably 500 ppm or less, more preferably 300 ppm or less.
- chemically tempered glass or physically tempered glass can be used as the glass sheet 2.
- the thickness of the glass sheet 2 is preferably 10 ⁇ m to 1000 ⁇ m, more preferably 50 ⁇ m to 500 ⁇ m, and most preferably 100 ⁇ m to 300 ⁇ m.
- the strength of the glass resin laminate increases as the thickness of the glass sheet increases.
- the thickness of the glass sheet 2 is smaller than the thickness of the resin layer 3. Thereby, since the ratio for which the glass sheet 2 accounts in the glass resin laminated body 1 reduces, the weight reduction of the glass resin laminated body 1 can be achieved.
- the thickness is preferably 300 ⁇ m to 1000 ⁇ m.
- the density of the glass sheet 2 is low. Thereby, the weight reduction of the glass sheet 2 can be achieved, and the weight reduction of the glass resin laminated body 1 can be achieved by extension.
- the density of the glass sheet 2 is preferably 2.6 g / cm 3 or less, and more preferably 2.5 g / cm 3 or less.
- the glass sheet 2 used in the present invention is preferably formed by the overflow downdraw method as shown in FIG. Thereby, the glass sheet 2 excellent in surface quality can be produced in large quantities and at low cost.
- the overflow down draw method is a molding method in which both surfaces of the glass sheet 2 do not come into contact with the molded member at the time of molding, and both surfaces (translucent surface) of the obtained glass sheet 2 are fire-making surfaces and are not polished. Even high surface quality can be obtained. Thereby, it becomes possible to laminate
- a molded body 51 having a wedge-shaped outer surface shape is disposed inside the molding device 5.
- glass molten glass
- a melting furnace not shown
- Molten glass overflows from the top of the molded body 51.
- the molten glass which overflowed passes along the both sides
- molding of the glass ribbon G is started from molten glass.
- the glass ribbon G just after joining at the lower end of the formed body 51 is drawn downward while being contracted in the width direction by the cooling roller 52 and thinned to a predetermined thickness.
- the glass ribbon G that has reached the predetermined thickness is fed out by an annealing roller 53 so that it is gradually cooled in a slow cooling furnace (annealer), the thermal distortion of the glass ribbon G is removed, and the slowly cooled glass ribbon G is cooled to room temperature. It is designed to cool sufficiently to a certain temperature.
- the glass ribbon G that has passed through the slow cooling furnace is cut into a predetermined size by a cutting device (not shown) that exists below the forming device 5, and the glass sheet 2 is formed.
- the resin layer 3 is not particularly limited, such as colored or colorless, transparent or non-transparent, for example, polyethylene, polyvinyl chloride, polyethylene terephthalate, polyvinylidene chloride, polypropylene, polyvinyl alcohol, polyester, polystyrene, polyacrylonitrile, ethylene vinyl acetate.
- a polymer, an ethylene-vinyl alcohol copolymer, an ethylene-methacrylic acid copolymer, acrylic, polycarbonate, or the like can be used.
- acrylic and polycarbonate are preferably used because of excellent transparency.
- the thickness of the resin layer 3 can be appropriately set and selected from the thickness of the glass sheet 2 to be used, the target thickness of the glass resin laminate 1, and the like.
- the transparent resin layer 3 has a thickness that can support the glass sheet 2. It is preferable.
- the resin layer 3 may be formed into a curved shape such as a concave surface or a convex surface.
- the glass sheet 2 may be bent according to the curved shape of the resin layer 3, and the shape of the resin layer 3 is constrained by the glass sheet 2 whose shape is fixed to the curved shape.
- the effect that the resin layer 3 is reinforced by the sheet 2 becomes remarkable.
- the glass sheet 2 deforms following the curved surface of the resin layer 3, so that the glass resin laminate is not bent and formed. 1 can be produced.
- the resin layer 3 when the resin layer 3 is formed into a concave curved surface shape, a compressive stress is formed on the surface of the glass sheet 2 by causing the glass sheet 2 to follow the curved surface of the resin layer 3 formed into a concave surface.
- the laminated body 1 as a whole is excellent in impact absorbability.
- the adhesive layer 4 bonds the glass sheet 2 and the resin layer 3 together.
- the adhesive layer 4 needs to have a spectral transmittance of 90% or more in a wavelength range of at least 430 nm to 680 nm. Thereby, the original color of the resin layer 3 is not impaired, and the color characteristics of the resin layer can be sufficiently exhibited.
- the spectral transmittance in the visible light short wavelength region such as 450 nm or less of the adhesive layer 4 is less than 90%, the glass resin laminate 1 may be observed in a yellow state depending on the application, which is not preferable.
- the adhesive layer 4 has a spectral transmittance in the wavelength range of 430 nm to 680 nm of more preferably 92% or more, and most preferably 94% or more.
- the thickness of the adhesive layer 4 is preferably 25 ⁇ m to 1000 ⁇ m, more preferably 50 ⁇ m to 800 ⁇ m, and even more preferably 50 ⁇ m to 500 ⁇ m.
- the thickness of the adhesive layer 4 is preferably 25 ⁇ m to 1000 ⁇ m, more preferably 50 ⁇ m to 800 ⁇ m, and even more preferably 50 ⁇ m to 500 ⁇ m.
- the adhesive layer 4 is thicker, the difference in expansion and contraction due to the difference in thermal expansion between the resin layer 3 and the glass sheet 2 can be absorbed, but the spectral transmittance in the wavelength region of 430 nm to 680 nm is inferior.
- the thickness of the adhesive layer 4 is smaller, the spectral transmittance in the wavelength region of 430 nm to 680 nm is improved, but it becomes difficult to absorb the difference in shrinkage due to the difference in thermal expansion between the resin layer 3 and the glass sheet 2.
- the thickness of the resin layer 3 is most preferably 100 to 500 ⁇ m. In the present invention, even if the thickness of the adhesive layer 4 is increased, the spectral transmittance in the wavelength range of 430 nm to 680 nm does not fall below 90%.
- the material of the adhesive layer 4 is not particularly limited as long as the spectral transmittance at a wavelength of 430 nm to 680 nm satisfies 90% or more, and is a double-sided pressure-sensitive adhesive sheet, a thermoplastic adhesive sheet, a thermally crosslinkable adhesive sheet, an energy curable liquid.
- Adhesives can be used, for example, optical transparent adhesive sheet, EVA, TPU, PVB, ionoplast resin, acrylic thermoplastic adhesive sheet, UV curable adhesive, thermosetting adhesive, room temperature curable type You may adhere
- the adhesive layer 4 has ultraviolet shielding properties (ultraviolet absorption), the resin layer 3 can be prevented from being deteriorated by ultraviolet rays.
- the adhesive layer 4 preferably has a spectral transmittance of 90% to 94% or more in the wavelength region of 410 nm to 700 nm, and more preferably has a spectral transmittance of 90% to 94% or more in the wavelength region of 380 nm to 780 nm. Is almost transparent and most preferable.
- the adhesive layer 4 preferably has a haze of 2% or less. Thereby, when a highly transparent material such as acrylic or polycarbonate is used as the resin layer 3, a highly transparent glass resin laminate 1 can be obtained.
- the adhesive layer 4 preferably has a haze of 1% or less, and more preferably 0.5% or less.
- the glass resin laminate 1 according to the present invention preferably has a five-layer structure consisting of glass sheet / adhesive layer / resin layer / adhesive layer / glass sheet.
- the glass sheet 2 excellent in touch and texture can be used as the outermost layer.
- the thickness of the resin layer 3 is preferably equal to or greater than the thickness of the glass sheets 21 and 22, and more preferably three or more times the thickness of the glass sheets 21 and 22. Thereby, since the ratio for which the transparent resin layer 3 accounts in the glass resin laminated body 1 increases, the weight of the whole glass resin laminated body 1 can be further reduced, and the lightweight of the glass resin laminated body 1 can be more effectively performed. Can be achieved.
- the thickness of the transparent resin layer 3 is preferably three times or more the thickness of the thickest glass sheet. As for the thickness of the transparent resin layer 3, 10 times or more of the thickness of the glass sheets 21 and 22 is more preferable, and it is most preferable that it is 20 times or more.
- the glass sheets 21 and 22 may use the same type of glass material or different types of glass materials.
- a non-alkali glass excellent in weather resistance is used for the glass sheet 21 on the side exposed to the external environment, and the interior environment side such as a room is used.
- the glass sheet 22 can be made of soda lime glass or the like.
- a glass sheet that is more transparent to visible light is required, and the spectral transmittance in the wavelength region of at least 430 nm to 680 nm is preferably 90% or more. Thereby, the original color of the resin layer 3 is not impaired, and the color characteristics of the resin layer can be sufficiently exhibited.
- the thickness of the glass sheets 21 and 22 may be the same or different.
- the thickness of the glass sheet 21 on the side exposed to the external environment is set to be thick (for example, 100 ⁇ m) and You may set the thickness of the glass sheet 22 thin (for example, 50 micrometers).
- this invention is not limited to the said embodiment, It can implement with a various form.
- a glass resin laminate having a three-layer structure or a five-layer structure has been described, but a glass resin laminate having a seven-layer structure or more may be used.
- Example 1 One rectangular glass sheet having a length of 300 mm, a width of 300 mm, and a thickness of 100 ⁇ m was prepared.
- the glass sheet non-alkali glass manufactured by Nippon Electric Glass Co., Ltd. was used.
- the glass sheet formed by the overflow downdraw method was used as it was without being polished.
- As the resin layer a rectangular milky white translucent polycarbonate plate (manufactured by Takiron Co., Ltd.) having a length of 300 mm, a width of 300 mm, and a thickness of 1 mm was prepared. After laminating 150 ⁇ m of a thermoplastic sheet (EVA) as an adhesive layer on one surface of the resin layer, a glass sheet was laminated to prepare a three-layer glass resin laminate.
- EVA thermoplastic sheet
- the spectral transmittance of the adhesive layer at wavelengths of 410 nm to 700 nm was 90% or more at each wavelength. Further, the adhesive layer is added with an ultraviolet absorber and has an ultraviolet shielding performance.
- the milky white translucency of the polycarbonate plate was reproduced as it was, and yellow was not exhibited.
- the weather resistance test was implemented with the xenon weather meter with respect to the glass surface side of the obtained glass resin laminated body for 1000 hours, the polycarbonate did not deteriorate.
- the present embodiment can be suitably used as a lighting cover.
- Example 2 Two rectangular glass sheets having a length of 600 mm, a width of 600 mm, and a thickness of 700 ⁇ m were prepared.
- the glass sheet non-alkali glass manufactured by Nippon Electric Glass Co., Ltd. was used.
- the glass sheet formed by the overflow downdraw method was used as it was without being polished.
- the resin layer a rectangular white opaque acrylic plate (manufactured by Mitsubishi Rayon Co., Ltd.) having a length of 600 mm, a width of 600 mm, and a thickness of 6 mm was prepared.
- thermoplastic sheet (EVA) 400 ⁇ m was laminated as an adhesive layer on both surfaces of the resin layer, and the resin layer was sandwiched between two glass sheets to prepare a glass resin laminate having a five-layer structure.
- the spectral transmittance of the adhesive layer at wavelengths of 430 nm to 680 nm was 90% or more at each wavelength.
- the white color of the acrylic plate was reproduced as it was, and yellow color was not exhibited.
- This example can reproduce the white color of acrylic, is excellent in scratch resistance due to the acrylic being protected by a glass sheet, and the acrylic itself has UV durability, so it is preferably used as a display shelf. be able to.
- Example 3 Two rectangular glass sheets having a length of 500 mm, a width of 500 mm, and a thickness of 200 ⁇ m were prepared.
- the glass sheet non-alkali glass manufactured by Nippon Electric Glass Co., Ltd. was used.
- the glass sheet formed by the overflow downdraw method was used as it was without being polished.
- the resin layer a rectangular, colorless and transparent acrylic plate (manufactured by Mitsubishi Rayon Co., Ltd.) having a length of 500 mm, a width of 500 mm, and a thickness of 2 mm was prepared.
- a glass resin laminate having a five-layer structure was prepared by sandwiching the resin layer with two glass sheets.
- the spectral transmittance of the adhesive layer at wavelengths of 420 nm to 780 nm was 91% or more at each wavelength.
- Example 4 Two rectangular glass sheets having a length of 600 mm, a width of 600 mm, and a thickness of 100 ⁇ m were prepared.
- the glass sheet non-alkali glass manufactured by Nippon Electric Glass Co., Ltd. was used.
- the glass sheet formed by the overflow downdraw method was used as it was without being polished.
- the resin layer a cylindrical, colorless and transparent acrylic plate (manufactured by Mitsubishi Rayon Co., Ltd.) having a length of 600 mm, a width of 600 mm, a thickness of 4 mm, and R3000 mm was prepared.
- Example 5 Two rectangular glass sheets having a length of 600 mm, a width of 600 mm, and a thickness of 500 ⁇ m were prepared.
- soda glass manufactured by Nippon Electric Glass Co., Ltd. was used.
- the glass sheet formed by the overflow down draw method was bent into an R1000 mm cylindrical shape.
- As the resin layer a cylindrical transparent colorless and transparent polycarbonate plate (manufactured by Takiron Co., Ltd.) having a length of 600 mm, a width of 600 mm, a thickness of 6 mm, and R2000 mm was prepared.
- thermoplastic sheet (TPU) 400 ⁇ m As an adhesive layer on both surfaces of the resin layer, a glass resin laminate having a five-layer structure was produced by sandwiching the resin layer with two glass sheets.
- the spectral transmittance of the adhesive layer at a wavelength of 430 nm to 700 nm was 90% or more at each wavelength.
- the adhesive layer is added with an ultraviolet absorber and has an ultraviolet shielding performance.
- the obtained glass resin laminate was observed obliquely from a 45 ° direction, the transparency of the polycarbonate plate was reproduced as it was, and yellow was not exhibited.
- the weather resistance test was implemented for 1000 hours with the xenon weather meter with respect to the obtained glass resin laminated body, the polycarbonate did not deteriorate.
- the present embodiment can be suitably used as a safety window having impact resistance.
- Comparative Example 1 Two rectangular glass sheets having a length of 500 mm, a width of 500 mm, and a thickness of 200 ⁇ m were prepared.
- the glass sheet non-alkali glass manufactured by Nippon Electric Glass Co., Ltd. was used.
- the glass sheet formed by the overflow downdraw method was used as it was without being polished.
- the resin layer a rectangular transparent colorless acrylic plate (manufactured by Mitsubishi Rayon Co., Ltd.) having a length of 500 mm, a width of 500 mm, and a thickness of 6 mm was prepared.
- thermoplastic sheet (TPU) 400 ⁇ m As an adhesive layer on both surfaces of the resin layer, a glass resin laminate having a five-layer structure was produced by sandwiching the resin layer with two glass sheets.
- the spectral transmittance of the adhesive layer at wavelengths of 430 nm to 680 nm was less than 90% in each wavelength region, and the maximum value was 88%.
- the obtained glass resin laminate was observed obliquely from a 45 ° direction, it was confirmed to be yellow.
- the present invention includes window materials for general buildings and high-rise buildings, lighting from roofs, covering materials for agricultural greenhouses, window materials for vehicles such as automobiles and trains, substrates and cover glasses for electronic devices, touch panels, and planar shapes. It can be suitably used for an advertising board, a guide board, etc. that emit light.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Biochemistry (AREA)
- Laminated Bodies (AREA)
- Joining Of Glass To Other Materials (AREA)
Description
2 ガラスシート
3 樹脂層
4 接着層
Claims (8)
- ガラスシートで構成される層と、樹脂層で構成される層と、前記ガラスシートと前記樹脂層とを接着する接着層とを含み、少なくとも3層以上の積層構造を有するガラス樹脂積層体であって、
前記接着層は、少なくとも430nm~680nmの波長域における分光透過率が90%以上であることを特徴とするガラス樹脂積層体。 - 両最外層の前記ガラスシートと、前記両最外層のガラスシート間に介装された1層の前記樹脂層と、前記両最外層のガラスシートと前記樹脂層とを接着する2層の前記接着層とで構成される5層構造を有することを特徴とする請求項1に記載のガラス樹脂積層体。
- 前記樹脂層は、透明であることを特徴とする請求項1または2に記載のガラス樹脂積層体。
- 前記接着層の厚みは、50~800μmであることを特徴とする請求項1~3のいずれかに記載のガラス樹脂積層体。
- 前記ガラスシートは、無アルカリガラスであることを特徴とする請求項1~4のいずれかに記載のガラス樹脂積層体。
- 前記ガラスシートは、オーバーフローダウンドロー法で作製されていることを特徴とする請求項1~5のいずれかに記載のガラス樹脂積層体。
- 前記樹脂層が、ポリカーボネート材あるいはアクリル材であることを特徴とする請求項1~6のいずれかに記載のガラス樹脂積層体。
- 前記ガラスシートの厚みは、100~300μmであることを特徴とする請求項1~7のいずれかに記載のガラス樹脂積層体。
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR20147031882A KR20150035532A (ko) | 2012-07-05 | 2013-07-04 | 글래스 수지 적층체 |
| US14/411,691 US20150174861A1 (en) | 2012-07-05 | 2013-07-04 | Glass-resin laminate |
| CN201380032237.1A CN104395071B (zh) | 2012-07-05 | 2013-07-04 | 玻璃树脂层叠体 |
| EP13813039.8A EP2871055A4 (en) | 2012-07-05 | 2013-07-04 | GLASS-RESIN LAMINATE |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012151069A JP6186675B2 (ja) | 2012-07-05 | 2012-07-05 | ガラス樹脂積層体 |
| JP2012-151069 | 2012-07-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2014007313A1 true WO2014007313A1 (ja) | 2014-01-09 |
Family
ID=49882064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2013/068335 Ceased WO2014007313A1 (ja) | 2012-07-05 | 2013-07-04 | ガラス樹脂積層体 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20150174861A1 (ja) |
| EP (1) | EP2871055A4 (ja) |
| JP (1) | JP6186675B2 (ja) |
| KR (1) | KR20150035532A (ja) |
| CN (1) | CN104395071B (ja) |
| TW (1) | TWI583548B (ja) |
| WO (1) | WO2014007313A1 (ja) |
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| JP2017512175A (ja) * | 2014-03-07 | 2017-05-18 | コーニング インコーポレイテッド | ヘッドアップディスプレイシステム用のガラス積層構造体 |
| CN106794676A (zh) * | 2014-12-19 | 2017-05-31 | 日本电气硝子株式会社 | 玻璃树脂层叠体 |
| US10279567B2 (en) | 2013-08-30 | 2019-05-07 | Corning Incorporated | Light-weight, high stiffness glass laminate structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11305517B2 (en) | 2012-05-31 | 2022-04-19 | Corning Incorporated | Stiff interlayers for laminated glass structures |
| US10279567B2 (en) | 2013-08-30 | 2019-05-07 | Corning Incorporated | Light-weight, high stiffness glass laminate structure |
| JP2017512175A (ja) * | 2014-03-07 | 2017-05-18 | コーニング インコーポレイテッド | ヘッドアップディスプレイシステム用のガラス積層構造体 |
| EP3154783A1 (de) * | 2014-06-12 | 2017-04-19 | Saint-Gobain Glass France | Verbundscheibe aus einer polymeren scheibe und einer glasscheibe |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN104395071A (zh) | 2015-03-04 |
| JP2014012373A (ja) | 2014-01-23 |
| EP2871055A1 (en) | 2015-05-13 |
| JP6186675B2 (ja) | 2017-08-30 |
| TWI583548B (zh) | 2017-05-21 |
| US20150174861A1 (en) | 2015-06-25 |
| CN104395071B (zh) | 2016-03-23 |
| EP2871055A4 (en) | 2016-03-09 |
| KR20150035532A (ko) | 2015-04-06 |
| TW201412520A (zh) | 2014-04-01 |
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