WO2010119771A1 - Procédé de production d'un verre stratifié dans lequel est inséré un film plastique, et verre stratifié dans lequel est inséré un film plastique - Google Patents

Procédé de production d'un verre stratifié dans lequel est inséré un film plastique, et verre stratifié dans lequel est inséré un film plastique Download PDF

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Publication number
WO2010119771A1
WO2010119771A1 PCT/JP2010/055833 JP2010055833W WO2010119771A1 WO 2010119771 A1 WO2010119771 A1 WO 2010119771A1 JP 2010055833 W JP2010055833 W JP 2010055833W WO 2010119771 A1 WO2010119771 A1 WO 2010119771A1
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WO
WIPO (PCT)
Prior art keywords
film
plastic film
glass
plastic
laminated glass
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PCT/JP2010/055833
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English (en)
Japanese (ja)
Inventor
健介 泉谷
敦 高松
浩道 坂本
功 中村
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セントラル硝子株式会社
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Publication of WO2010119771A1 publication Critical patent/WO2010119771A1/fr

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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
    • B32B17/10165—Functional features of the laminated safety glass or glazing
    • B32B17/10174—Coatings of a metallic or dielectric material on a constituent layer of glass or polymer
    • 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
    • B32B17/10036—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
    • 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
    • B32B17/10761—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 vinyl acetal
    • 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
    • B32B17/10788—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 ethylene vinylacetate

Definitions

  • a laminate of two glass plates using two resin interlayers sandwiching a plastic film, particularly a polyethylene terephthalate film, is known as a laminated glass having a heat ray reflecting function.
  • laminated glass is subjected to high-temperature and high-pressure treatment using an autoclave, and a glass plate and a polyester film are heat-sealed by a resin interlayer.
  • Patent Document 1 a flexible laminate in which a heat ray reflective plastic film having a thin film formed on a polyester film is sandwiched between two resin intermediate films is sandwiched and laminated between two glass plates. Glass is disclosed.
  • Patent Document 2 a polyethylene terephthalate film (PET film) or a polyethylene naphthalate film (PEN film) on which an infrared reflecting film is formed is heated at 199 to 204 ° C. or 227 to 243 ° C. It is disclosed that when a PET film or a PEN film is used, wrinkles are not caused by heat shrinkage.
  • PET film polyethylene terephthalate film
  • PEN film polyethylene naphthalate film
  • Patent Document 3 a plastic film-inserted laminated glass using a biaxially stretched thermoplastic support film having a thickness of 30 to 70 ⁇ m and a thermal shrinkage of 0.3 to 0.6% in the stretch direction A manufacturing method is disclosed.
  • Patent Document 4 has an infrared reflecting film made of a metal such as Ag formed on plastic, and Patent Document 5 has laminated dielectric materials having different refractive indexes.
  • An infrared reflecting film formed on a plastic film is disclosed in Patent Document 6, and a film obtained by laminating resin films having different refractive indexes on a plastic film is disclosed.
  • an object of the present invention is to provide a production method in which the plastic film is not wrinkled.
  • the method for producing a plastic film-inserted laminated glass according to the present invention comprises two glass plates curved by bending, two resin intermediate films, and a plastic film with an infrared reflecting film.
  • a plastic film-inserted laminated glass in which a film, a plastic film with an infrared reflecting film, a resin intermediate film, and a glass plate are laminated in this order, an opaque colored film is formed on the periphery of at least one glass plate,
  • Step 1 The plastic film with an infrared reflecting film is cut into a predetermined shape plastic film (a plastic film having an area smaller than the area of the glass plate and the edge of the film overlapping the opaque colored film of the glass plate on the entire circumference). Process.
  • Step 2 A step of stacking the two resin intermediate films and the predetermined shape plastic film so that the predetermined shape plastic film produced by cutting in Step 1 is sandwiched between the two resin intermediate films.
  • Step 3 A step of heat-sealing the resin intermediate film and the resin intermediate film or the resin intermediate film and the predetermined shape plastic film at a position close to the side of the predetermined shape plastic film to form a laminated intermediate film.
  • the manufacturing method of the plastic film insertion laminated glass which concerns on this invention uses the heating apparatus which has a heating body, or uses a laser beam for the heat fusion of the process 3 in the manufacturing method of the said plastic film insertion laminated glass. It is a manufacturing method of the plastic film insertion laminated glass characterized by the above-mentioned.
  • the plastic film-inserted laminated glass according to the present invention is a plastic produced by the method for producing a plastic film-inserted laminated glass, characterized in that the radius of curvature of the two glass plates is in the range of 0.9 to 3 m. Film-inserted laminated glass.
  • the plastic film-inserted laminated glass according to the present invention is the plastic film-inserted laminated glass, wherein the plastic film used for the plastic film with an infrared reflective film is polyethylene terephthalate, polyethylene naphthalate, polycarbonate, polymethyl methacrylate, polyether sulfone.
  • the plastic film-inserted laminated glass according to the present invention is the plastic film-inserted laminated glass, wherein the resin interlayer disperses fine particles of metal or metal oxide in polyvinyl acetal, ethylene vinyl acetate, or a fusible resin thereof.
  • the plastic film-inserted laminated glass according to the present invention is the plastic film-inserted laminated glass, wherein the infrared reflective film of the plastic film with an infrared reflective film comprises a high refractive index oxide film and a low refractive index oxide film.
  • a plastic film-inserted laminated glass which is a multilayer film formed by alternately laminating, a multilayer film of polymer thin films having different refractive indexes, or a conductive thin film.
  • the plastic film insertion laminated glass according to the present invention is the plastic film insertion laminated glass, wherein the oxide film is TiO 2 , Nb 2 O 5 , Ta 2 O 5 , SiO 2 , Al 2 O 3 , ZrO 2 ,
  • the oxide film is TiO 2 , Nb 2 O 5 , Ta 2 O 5 , SiO 2 , Al 2 O 3 , ZrO 2
  • a plastic film-inserted laminated glass characterized by comprising two or more kinds of oxides selected from MgF 2 , or a multilayer film of polymer thin films having different refractive indices, comprising 50 layers of two types of polymer thin films alternately.
  • plastic glass film characterized by being a multilayer film formed by laminating 200 layers, or the conductive thin film is made of Ag, Au, Cu, Al, Pd, Pt, Sn, In, Zn, Ti, Metal film or alloy film made of metal or alloy such as Cd, Fe, Co, Cr, Ni, or antimony-doped tin oxide, tin-doped
  • a plastic film-inserted laminated glass characterized in that consists characterized by comprising a conductive metal oxide film made of indium or the like.
  • the plastic film insertion laminated glass which concerns on this invention WHEREIN:
  • a plastic film-inserted laminated glass characterized in that (A) The thickness is in the range of 30 to 200 ⁇ m. (B) The thermal shrinkage is in the range of 0.1 to 3% in the temperature range of 100 to 150 ° C. (C) When a tensile force of 10 N is applied per 1 m width of the plastic film with an infrared reflecting film in a temperature range of 100 to 150 ° C., the elongation percentage of the plastic film with the infrared reflecting film is 0.3% or less.
  • the plastic film-inserted laminated glass according to the present invention is a plastic film-inserted laminated glass characterized in that the visible light transmittance defined in JIS R3212: 1998 is 70% or more in the plastic film-inserted laminated glass.
  • the plastic film insertion laminated glass according to the present invention is a plastic film insertion laminated glass characterized in that in the plastic film insertion laminated glass, the solar reflectance defined in JIS R3106: 1998 is 20% or more. .
  • plastic film-inserted laminated glass according to the present invention, the plastic film-inserted laminated ISO13837 in glass: total solar transmittance as defined in 2008 (Total Solar Transmittance) plastic T TS is equal to or less than 50% Film-inserted laminated glass.
  • the present invention relates to a plastic-inserted laminated glass produced by using two glass plates curved in the same shape by a laminated film in which a plastic film with an infrared reflecting film is sandwiched between two resin intermediate films.
  • the manufacturing method of the plastic film insertion laminated glass with a favorable external appearance which does not produce is provided.
  • the plastic film-inserted laminated glass to be manufactured has an infrared reflecting film, and therefore reflects the heat rays of sunlight and has excellent heat insulation properties.
  • FIG. 2 is a cross-sectional view taken along line aa ′ in FIG. 1.
  • the edge part schematic sectional drawing of the plastic film insertion laminated glass of FIG. The top view which shows the place where the plastic film 22 with an infrared reflecting film is cut
  • FIG. The top view of the intermediate film laminated body obtained by pinching
  • FIG. 1 The top view of the lamination
  • cross-sectional view Sectional drawing of the lamination
  • FIG. 3 is a schematic cross-sectional view showing a heat fusion apparatus in which resin intermediate films 23 and 23 ′ sandwiching a predetermined shape plastic film 25 are sandwiched between a heating body 31 and a pressing portion 32 of a heater 30 and partially heat-sealed.
  • FIG. 3 is a schematic cross-sectional view showing a heat fusion apparatus in which resin intermediate films 23 and 23 ′ sandwiching a predetermined-shaped plastic film 25 are sandwiched between two heaters and partially heat-sealed.
  • the schematic sectional drawing which shows the heat sealing
  • FIG. 11 is a schematic cross-sectional view showing a deaeration method using a tube (cross-section gg ′ in FIG. 10).
  • FIG. 13 is a schematic sectional view showing a deaeration method using a vacuum bag (cross section taken along line hh ′ in FIG. 12).
  • the method for producing a laminated plastic film-inserted glass of the present invention is to produce a curved plastic film-inserted laminated glass 1 as shown in FIGS.
  • a laminated film 28 having a configuration in which a plastic film 14 having a predetermined shape formed by cutting a plastic film with an infrared reflecting film is sandwiched between resin interlayers 11 and 12 as shown in FIG. It is a laminated glass formed by bonding two glass plates 10 and 13 that are used and bent.
  • glass plates 10 and 13 As the shape of the two glass plates 10 and 13 that have been bent, there are glass plates having different radii of curvature depending on places, such as a spherical surface, an elliptical spherical surface, or a front glass of an automobile.
  • the radius of curvature of the curved glass plate is 0.9 m to 3 m.
  • the curvature radius is smaller than 0.9 m, wrinkles of the predetermined-shaped plastic film 14 are likely to occur in the laminating process. Therefore, the curvature radius is desirably 0.9 m or more.
  • the reason why the radius of curvature is 3 m or less is that when the radius of curvature increases, the glass plate has a shape close to a flat surface, and there is almost no effect of the present invention that wrinkles of the predetermined shape plastic film 14 do not occur. This is because the effect of the present invention appears when the radius is 3 m or less.
  • the eaves glass plate 10 When the eaves glass plate 10 is disposed on the outdoor side, it is desirable to use the glass plate 10 positioned on the outdoor side with an opaque colored film 15 formed on the periphery as shown in FIG.
  • the use of the outdoor glass plate 10 on which the opaque colored film 15 is formed is that when sunlight hits the edge 4 of the predetermined shape plastic film 14, the light is scattered at the edge 4 and the edge 4 is only noticeable. This is because there is a risk of disturbing driving.
  • soot coloring film 15 on the mating surface of the glass plate 10 located on the outdoor side.
  • the shape of the predetermined shape plastic film 14 is such that the edge 4 of the predetermined shape plastic film overlaps the opaque colored film 15 of the glass plate 10 on the entire circumference and is cut to an area smaller than the area of the glass plate 10 or 13. It is preferable to use those prepared.
  • the edge 4 of the predetermined shape plastic film 14 overlaps the opaque colored film 15 of the glass plate 10 on the entire circumference, and the shape of the predetermined shape plastic film 14 is similar to the see-through portion 5 of the glass plate 10. This is desirable because CAD data for forming the film 15 can be used.
  • FIG. 3 shows a schematic cross section of the end of the plastic-inserted laminated glass.
  • the dimension d1 dimension from the glass edge 2 to the plastic film edge 4
  • the dimension d2 dimension from the glass edge 2 to the colored film edge 3.
  • Is reduced and d3 d2 ⁇ d1 is preferably 5 mm or more in order to prevent scattering of sunlight at the edge of the plastic film.
  • a hot melt type adhesive such as polyvinyl butyral (PVB) or ethylene vinyl acetate (EVA) is preferably used for the resin intermediate films 11 and 12.
  • PVB polyvinyl butyral
  • EVA ethylene vinyl acetate
  • the resin intermediate film 12 used on the indoor side has fine metal particles such as Ag, Al, Ti, metal nitride, metal oxide fine particles, ITO, ATO, AZO,
  • conductive transparent oxide fine particles such as GZO and IZO
  • metal fine particles such as Ag, Al and Ti, metal nitride and metal oxide fine particles, and conductive materials such as ITO, ATO, AZO, GZO and IZO
  • the transparent transparent oxide fine particles are preferable because they absorb infrared rays and can improve the heat insulating property of the plastic-inserted laminated glass.
  • plastic film with an infrared reflecting film those prepared by a stretching method are suitable, and are made of polyethylene terephthalate, polyethylene naphthalate, polycarbonate, polymethyl methacrylate, polyether sulfone, nylon, polyarylate, cycloolefin polymer, or the like.
  • a plastic film selected from plastic films having an infrared reflective film (not shown) formed thereon is used.
  • the crystalline polyethylene terephthalate film (PET film) formed by the biaxial stretching method has excellent heat resistance and can be used in a wide range of temperature environments, and is highly transparent and produced in large quantities. Therefore, the quality is stable and suitable.
  • the conductive thin film is a metal or alloy such as Ag, Au, Cu, Al, Pd, Pt, Sn, In, Zn, Ti, Cd, Fe, Co, Cr, or Ni.
  • a metal film or an alloy film made of, or a conductive metal oxide film made of antimony-doped tin oxide, tin-doped indium oxide, or the like is preferably used.
  • a dielectric multilayer film having a different refractive index or a resin multilayer film having a different refractive index as the infrared reflective film laminated on the plastic film, because it transmits electromagnetic waves used in broadcasting and communication.
  • a dielectric multilayer film having a different refractive index or a resin multilayer film having a different refractive index is formed by alternately laminating a laminated film having a refractive index n1 and a laminated film having a refractive index n2 (n2 ⁇ n1). It is a multilayer film.
  • a multilayer film formed by alternately stacking a high refractive index oxide film and a low refractive index oxide film is used as the infrared reflective film
  • a film made of at least one dielectric selected from Al 2 O 3 , ZrO 2 , and MgF 2 is preferably used.
  • SiO 2 is used for a film having a low refractive index and one or more kinds of dielectrics selected from TiO 2 , Nb 2 O 5 , and Ta 2 O 5 are used for a film having a high refractive index
  • 4 to 11 A multilayer film of layers is preferable because a suitable infrared reflection film that reflects near infrared rays can be formed.
  • the infrared reflective film made of a dielectric film has a dielectric film of 4 layers or more and 11 layers or less so as to satisfy the following conditions (1) and (2). It is desirable to have a maximum value of reflection exceeding 50% in a wavelength range of 900 nm to 1400 nm.
  • the maximum value of the refractive index of the even-numbered layer is n emax
  • the minimum value is n emin
  • the maximum value of the refractive index of the odd-numbered layer is no max
  • the minimum value is when the n omin, n emax ⁇ n omin or n omax ⁇ n emin.
  • polyethylene terephthalate polyethylene naphthalate, polycarbonate, polymethyl methacrylate, polyether sulfone, nylon, polyarylate, cycloolefin A polymer or the like is preferably used, and the total number of multilayer films in which two types of polymer layers are alternately stacked is preferably 50 to 200 layers.
  • the conductive thin film and the dielectric film are preferably formed by a PVD method, a sputtering method, or the like, and the polymer thin film is preferably formed by a roll coating method, a flow coating method, a dipping method, or the like.
  • the plastic film with an infrared reflective film satisfies any of the following conditions (A), (B), and (C): Is preferred.
  • the thickness is in the range of 30 to 200 ⁇ m.
  • the thermal shrinkage is in the range of 0.1 to 3% in the temperature range of 100 to 150 ° C.
  • C When a tensile force of 10 N is applied per 1 m width of the plastic film with an infrared reflecting film in a temperature range of 100 to 150 ° C., the elongation percentage of the plastic film with the infrared reflecting film is 0.3% or less.
  • the thickness of the plastic film with an infrared reflecting film should be in the range of 30 to 200 ⁇ m. If the thickness is smaller than 30 ⁇ m, This is because wrinkles are likely to occur, and if it exceeds 200 ⁇ m, the shape of the plastic film with an infrared reflecting film does not follow the curved surface of the glass plate, and wrinkles are generated.
  • the plastic film with the infrared reflecting film is at a temperature of 100 to 150 ° C., and it is preferable that the thermal shrinkage rate is in the range of 0.1 to 3% within this temperature range.
  • the thermal shrinkage rate of the plastic film with an infrared reflecting film at 90 to 150 ° C. is less than 0.1%, the film with the infrared reflecting film is bumped around the curved glass plate, resulting in wrinkled appearance defects. appear.
  • the thermal shrinkage rate is greater than 3%, the infrared reflective film cannot withstand the shrinkage of the film, resulting in appearance defects that crack and crack.
  • the thermal shrinkage rate of the plastic film with an infrared reflecting film is specified in JIS relating to a transparent plastic film, it is preferably performed according to the corresponding JIS, for example, according to JIS C2318: 2007. .
  • the measurement temperature of the heat shrinkage rate is, for example, 150 ° C. in JIS C2318, but it is desirable to determine the measurement temperature according to the temperature setting conditions of the alignment process, and in the temperature range from 90 ° C. to 150 ° C. It is preferable to measure the heat shrinkage rate.
  • the elongation rate is increased. Is preferably 0.3% or less.
  • the tensile force of 10N applied per 1m width of the plastic film with the infrared reflecting film is such that the plastic film with the infrared reflecting film sandwiched between the intermediate films is made high temperature and high pressure by an autoclave, and the plastic film with the infrared reflecting film is formed by the intermediate film.
  • this corresponds to a tensile force that is generated in the plastic film with an infrared reflecting film and is intended to stretch the plastic film with the infrared reflecting film.
  • the elongation percentage of the plastic film with an infrared reflecting film is measured by the following procedures 1 to 5.
  • Procedure 1 A plastic film with an infrared reflecting film is cut into a length of 15 mm and a width of 5 mm to obtain a measurement sample. Attach fixing jigs to both ends of the measurement sample. The measurement sample is exposed between the fixing jigs at both ends, and the exposed length of the measurement sample is set to 10 mm.
  • Procedure 2 A load with a tensile force of 10 N per 1 m width is applied to the measurement sample. In the case of the measurement sample shown in Procedure 1, a load of 0.05 N is applied.
  • Procedure 3 The length L 0 of the measurement sample between the fixing jigs is measured.
  • Procedure 4 Heat to a measurement temperature between 90 and 150 ° C. at 5 ° C./min, and measure the length L between the fixing jigs of the measurement sample at the measurement temperature.
  • Elongation rate (%) is calculated by (L 0 -L) / L ⁇ 100.
  • the plastic film-inserted laminated glass 1 shown in FIGS. 1 and 2 is manufactured by the following steps 1 to 5.
  • steps 1 to 3 a laminated intermediate film 28 having a configuration in which the plastic film 14 having a predetermined shape is sandwiched between the two resin intermediate films 11 and 12 is produced.
  • Step 1 A plastic film with an infrared reflecting film is formed into a plastic film having a predetermined shape (a plastic film having an area smaller than the area of the glass plate and the edge of the plastic film having a predetermined shape overlaps the opaque colored film of the glass plate on the entire circumference) The process of cutting.
  • Step 2 A step of superposing the two resin intermediate films 11 and 12 and the predetermined shape plastic film 14 so that the predetermined shape plastic film 14 is sandwiched between the two resin intermediate films 11 and 12.
  • Step 3 At a position close to the side of the predetermined shape plastic film 14, the resin intermediate film 11 and the resin intermediate film 12 or the resin intermediate films 11 and 12 and the predetermined shape plastic film 14 are heat-sealed to form a laminated intermediate. Step of forming film 28.
  • Step 4 The laminated intermediate film 28 obtained in Step 3 is placed between two curved glass plates 10 and 13 to form a glass plate laminate, and the space between the two glass plates 10 and 13 is deaerated. Process.
  • Process 5 The process of pressurizing and heating the glass plate laminated body after deaeration and bonding.
  • Steps 1 to 5 are performed as follows.
  • step 1 as shown in FIG. 4, the plastic film 22 with the infrared reflection film is cut into a plastic film 25 having a predetermined shape, and the unnecessary portion 26 is removed.
  • a linear or circular cutter knife or a laser cutter that scans and cuts the laser beam for cutting the plastic film 22 with an infrared reflective film.
  • a cutting device that moves the cutter knife by numerical control.
  • the plastic film 25 having a predetermined shape is similar to the see-through portion 5 of the plastic film-inserted laminated glass 1 shown in FIG.
  • the plastic film 22 with the infrared reflection film is overlapped on the glass plate 10 that is bent and cut to obtain the plastic film 25 having a predetermined shape.
  • the glass plate 10 when the glass plate 10 is used for a front window of an automobile, the glass plate 10 often has a complicated surface shape with different curvatures depending on the location, and the plastic film 22 with an infrared reflecting film is cut on the curved surface of the glass plate 10. Therefore, it is easy to cut the plastic film 22 with the infrared reflecting film in accordance with the shape of the see-through portion in the flat plate shape before the glass plate 10 is bent. 25 is obtained.
  • step 2 as shown in FIG. 5A, resin intermediate films 23 and 23 ′ are stacked on both sides of a predetermined shape plastic film 25, and an intermediate film stack 20 is produced.
  • step 3 as shown in FIGS. 6A and 6B, a linear heat-sealed portion 29 is formed between the resin intermediate films 23 and 23 'in the vicinity of the center of the side of the predetermined-shaped plastic film 25 of the intermediate film laminate.
  • the laminated intermediate film 28 is produced by heat fusion.
  • the resin intermediate films 23 and 23 ′ are overlapped on both sides of the predetermined shape plastic film 25 to form a heat-welded portion 29 ′ near the center of the side of the predetermined shape plastic film 25.
  • the laminated intermediate film 28 ′ may be manufactured by heat-sealing the resin intermediate film 23 to the plastic film 25 having a predetermined shape.
  • heat fusion parts 29 and 29 ′ are preferably formed in a linear shape, but may be in a dotted line shape or a dotted shape.
  • the resin intermediate film 23 is heat-sealed to the predetermined shape plastic film 25.
  • the resin intermediate film 23 ' is bonded to the predetermined shape plastic film 25 or both of the resin intermediate films 23 and 23'. May be heat-sealed to the plastic film 25 having a predetermined shape.
  • the ridge-like heat-sealed portions 29 and 29 ′ are formed near the center of the side of the predetermined-shaped plastic film 25 where wrinkles are likely to occur.
  • the length of the linear heat-sealed portions 29 and 29 ′ is 5 mm or more. Further, in order to prevent a degassing failure between the resin intermediate films 23 and 23 ', it is preferable that the length of the linear heat-sealing portions 29 and 29' is 300 mm or less.
  • the heat fusion parts 29 and 29 ' are preferably formed near the center of all sides of the plastic film 25 having a predetermined shape.
  • the curvature of the bent glass plate is larger than 3 m, and the plastic film is wrinkled. In the case of a side where there is no risk of occurrence, it may not be formed.
  • the heat fusion part 29 can be formed by using an electric heater 30 and pressing a heating body 31 of the electric heater against the resin intermediate film 23.
  • the heating body 31 may be pressed from both sides of the resin intermediate film using two electric heaters 30 and heated.
  • the heat fusion part 29 may be formed by condensing the laser beam 33 on the surface where the resin intermediate films 23 and 23 ′ are in contact with each other by the convex lens 34 or the like.
  • the surface of the resin intermediate film is pressed with a transparent plate 35 such as a glass plate so that the light is not scattered on the embossed surface of the resin intermediate film 23, and the laser beam is in the middle of the resin. It is desirable not to scatter on the surface of the film.
  • the heat fusion part 29 ′ in which the resin intermediate film 23 ′ and the predetermined shape plastic film 25 are heat-sealed can also be formed in the same manner as the heat fusion part 29.
  • step 4 the laminated intermediate film 28 or 28 ′ produced in steps 1 to 3 is used to overlap the glass plate 10, the laminated intermediate film 28, and the glass plate 13 to form a glass plate laminated body 40. Deaeration with the plate 13 is performed.
  • Deaeration is not particularly limited, but a method of pressing and degassing from both sides of the glass plate laminate 40 with a pressing roll 41 as shown in FIG. 9, as shown in FIGS. 10 and 11, A method of attaching a tube 42 made of rubber-based resin around the glass plate laminate 40 and exhausting air from the exhaust nozzle 43 to deaerate the inside of the vacuum bag 44 as shown in FIGS.
  • the glass plate laminated body 40 can be put in and the air can be exhausted from the exhaust nozzle 45.
  • a vacuum pump (not shown) can be preferably used for exhausting air.
  • the glass plate laminate 40 in the degassed state of the process 4 is heated and pressurized by an autoclave device.
  • the temperature range of the heat and pressure treatment is 90 to 150 ° C., and the pressure is 1 MPa or less, and it is preferably performed for about 30 minutes.
  • a laminated intermediate film in which the resin intermediate film is continuous may be produced by using a continuous roll of resin intermediate film.
  • the laminated intermediate film 20 and the glass plate may be overlapped from the state in which the resin intermediate film is continuous before the step 3 or 4 and cut into a shape as shown in FIGS. 5A and 4B.
  • the plastic film-inserted laminated glass according to the present invention produced by steps 1 to 5 is required for driving an automobile by setting the visible light transmittance defined in JIS R3212: 1998 to 70% or more. This is preferable because it can be used for windows.
  • the plastic film-inserted laminated glass according to the present invention has a solar reflectance specified by JIS R3106: 1998 of 20% or more, or a total solar transmittance T specified by ISO 13837: 2008.
  • TS solar reflectance specified by JIS R3106: 1998 of 20% or more
  • T total solar transmittance
  • Example 1 1 and 2 a plastic film insertion laminated glass 1 in which a glass plate 10, a resin intermediate film 11, a plastic film 14 having a predetermined shape on which an infrared reflecting film is formed, a resin intermediate film 12, and a glass plate 13 are laminated. Produced.
  • the glass plates 10 and 13 are made by bending float glass having a size of 1100 mm ⁇ 1800 mm and a thickness of 2 mm.
  • the glass plate 10 used for the outdoor side is screen-printed with a ceramic paste on the concave side, fired, and colored. A film was formed.
  • a green heat ray absorbing glass having a thickness of 2 mm was used.
  • the width of the soot-colored film (d2 in FIG. 3) was 30 mm at the minimum and 200 mm at the maximum.
  • the curvature radius of the curved glass plate was between 0.9 m and 1 m, the peripheral portion was 0.9 m, and the central portion was 1 m.
  • PVB films having a thickness of 0.38 mm were used.
  • a PET film with a thickness of 100 ⁇ m was used as the plastic film with an infrared reflective film.
  • a hard coat film mainly composed of an acrylic resin in which tin-doped indium oxide (ITO) fine particles are dispersed is used as an infrared absorption layer (not shown) to a thickness of 5 ⁇ m after curing.
  • ITO tin-doped indium oxide
  • a dielectric multilayer film is used, and a TiO 2 film (thickness 105 nm), a SiO 2 film (thickness 175 nm), a TiO 2 film (thickness 105 nm), a SiO 2 film (thickness 175 nm), A TiO 2 film (thickness 105 nm), a SiO 2 film (thickness 175 nm), a TiO 2 film (thickness 105 nm), a SiO 2 film (thickness 175 nm), and a TiO 2 film (thickness 105 nm) are formed on the hard coat film. Films were formed sequentially by sputtering.
  • silane coupling agent was applied to the surface of the PET plastic film where the infrared reflective film was not formed.
  • Steps 1 to 5 were carried out as follows to produce the plastic-inserted laminated glass shown in FIGS.
  • a plastic film 22 with an infrared reflecting film in which a hard coat film, an infrared reflecting film and a coating film of a silane coupling agent are formed on a PET film using a thin blade cutter knife made of stainless steel has a predetermined shape as shown in FIG. Cut into a plastic film 25.
  • the shape of the plastic film 25 having a predetermined shape is similar to that of the see-through portion 5 of FIG. 1, and the size of the overlapping width (d3 shown in FIG. 3) of the plastic film 25 of the predetermined shape and the colored film 15 is 10 mm.
  • the intermediate film laminate 20 shown in FIG. 5A was formed by overlapping the resin intermediate films 23 and 23 ′ and the predetermined shape plastic film 25 so as to sandwich the predetermined shape plastic film 25.
  • Heat fusion was performed using the apparatus shown in FIG. 8A.
  • the area pressed against the resin intermediate film 23 of the heating body 31 is 10 mm ⁇ 200 mm, the temperature of the heating body is heated to 45 ° C., and pressed against the resin intermediate film 23 with a force of 1 N per square centimeter for 20 seconds.
  • the heat fusion part 29 shown in FIG. 6A and FIG. 6B was formed.
  • Step 4 The laminated intermediate film 28 produced in Step 3 is stacked on the curved outdoor glass 10, and the curved indoor glass 13 is stacked thereon, and the resin intermediate film protruding from the edge of the curved glass plate is cut with a cutter.
  • the glass plate laminate 40 was formed by cutting with a knife.
  • the laminated intermediate film 28 was laminated on the curved outdoor glass 10 so that d3 shown in FIG.
  • the infrared reflective film formed on the plastic film with the infrared reflective film is disposed so as to be in contact with the resin intermediate film 11 on the outdoor side of FIG. 2, and the hard coat layer that absorbs infrared rays is formed on the resin intermediate film 12 on the indoor side. I made contact.
  • the glass plate laminate 40 was degassed by using the tube 42 shown in FIGS. 10 and 11 and connecting the exhaust nozzle 43 to a vacuum pump (not shown).
  • the tube 42 was made of rubber resin.
  • Step 5> The glass plate laminate 40 is placed in an autoclave while being deaerated using the tube 42 shown in FIGS. 10 and 11, and subjected to pressurization (0.2 MPa) and heating (95 ° C.) for 15 minutes, and then glass. The plate laminate 40 was taken out from the autoclave.
  • the tube 42 is removed from the glass plate laminate 40, and the glass plate laminate 40, from which the tube 42 has been removed, is again placed in the autoclave, subjected to pressure (1 MPa) and heating (140 ° C.) for 30 minutes, and the plastic insertion shown in FIG. Laminated glass 1 was produced.
  • the produced plastic film-inserted laminated glass 1 has a predetermined-shaped plastic film 14 with no wrinkles and no defective appearance, has a visible light transmittance of 73% as defined in JIS R3211-1998, and is a windshield of an automobile. Can be suitably used.
  • JIS plastic film-inserted laminated glass of this embodiment R3106: solar reflectance as defined in the 1998 21%, also, ISO 13 837: total solar transmittance as defined in 2008 (Total Solar Transmittance) T TS is 48%.
  • Example 2 Using a transparent PVB film having a thickness of 0.76 mm in which tin oxide (ATO) particles doped with antimony are dispersed in the resin intermediate film 13, and using a transparent PET film having a thickness of 80 ⁇ m as a plastic film with an infrared reflection film, As an infrared reflecting film, Nb 2 O 5 film (thickness 115 nm), SiO 2 film (thickness 175 nm), Nb 2 O 5 film (thickness 115 nm), SiO 2 film (thickness 175 nm), Nb 2 O 5 film (Thickness: 115 nm) was formed by sequential sputtering.
  • ATO tin oxide
  • a hard coat film mainly composed of an acrylic resin in which ATO fine particles are dispersed is applied by a roll coating method so as to have a thickness of 5 ⁇ m after curing, and an infrared reflection film is formed on the hard coat film. did.
  • the heat shrinkage rate of the plastic film with an infrared reflective film was 130 ° C., 0.7% in the MD direction, and 0.4% in the TD direction.
  • the produced plastic film-inserted laminated glass 1 has a predetermined-shaped plastic film 14 with no wrinkles and no defective appearance, has a visible light transmittance of 73% as defined in JIS R3211-1998, and is a windshield of an automobile. Can be suitably used.
  • JIS plastic film-inserted laminated glass of this embodiment R3106: solar reflectance as defined in the 1998 21%, also, ISO 13 837: total solar transmittance as defined in 2008 (Total Solar Transmittance) T TS is 48%.
  • Example 3 Except for using an infrared reflecting film formed by laminating a thin film of zinc oxide and silver on a PET film by a sputtering method on an infrared reflecting film of a plastic film with an infrared reflecting film, all the same as in Example 1 A plastic film-inserted laminated glass 1 was produced.
  • the plastic film-inserted laminated glass 1 produced in this example had no wrinkles in the predetermined shape plastic film and had no appearance defect.
  • Example 4 The infrared absorbing layer formed on the plastic film with the infrared reflecting film was used as an infrared reflecting film formed by sequentially laminating indium oxide, silver, indium oxide, silver, and indium oxide by a sputtering method.
  • a plastic film-inserted laminated glass 1 was produced in the same manner as Example 1 except for the other items.
  • the plastic film-inserted laminated glass 1 produced in this example had no wrinkles in the predetermined-shaped plastic film 14 and had no appearance defect.
  • the solar radiation reflectance defined in JIS R3106: 1998 of the heat insulating laminated glass 1 of this example was 24%, and the visible light transmittance defined in JIS R3212: 1998 was 71%.
  • ISO 13837: total solar transmittance as defined in 2008 (Total Solar Transmittance) T TS was 46%.
  • the thermal contraction rate of the plastic film 22 with an infrared reflecting film of this example is 0.7% in both the MD direction and the TD direction at 130 ° C., and the elongation rate is 0% in both the MD direction and the TD direction at 130 ° C. Met.
  • Example 5 Plastic film-inserted laminated glass in the same manner as in Example 1 except that a multilayer film formed by alternately laminating two types of polymer thin films having different refractive indexes was used for the infrared reflective film of the plastic film with the infrared reflective film. was made.
  • Polymethylmethacrylate was used for the low refractive index polymer thin film, and polyethylene terephthalate was used for the high refractive index polymer thin film.
  • a low refractive index layer formed using PMMA is called a PMMA layer, and a high refractive index layer formed using polyethylene terephthalate is called a PET layer.
  • the PMMA layer was formed by applying a solution obtained by dissolving PMMA in 2-methoxyethyl acetate by a roll coating method.
  • the refractive index was 1.49.
  • the PET layer was coated while melting the PET pellets with an extruder.
  • the refractive index of the PET layer was 1.65.
  • the infrared reflective layer 7 is formed by alternately stacking 20 layers of 0.144 ⁇ m PMMA layers and 0.159 ⁇ m PET layers, and alternately alternating 0.165 ⁇ m PMMA layers and 0.183 ⁇ m PET layers. Repeatedly layered 10 layers each, and further laminated 15 layers of 0.187 ⁇ m PMMA layer and 0.207 ⁇ m PET layer alternately, and further layered 158 ⁇ m PMMA layer and 0.175 ⁇ m PET layer. 15 layers were alternately stacked repeatedly, and further, a 0.172 ⁇ m PMMA layer and a 0.191 ⁇ m PET layer were alternately stacked repeatedly 15 layers each.
  • the polymer thin film has a total of 150 layers.
  • the thermal contraction rate of the film 22 with an infrared reflective film of this example was 130 ° C., and 1.1% in both the MD direction and the TD direction.
  • the plastic film-inserted laminated glass 1 produced in this example had no wrinkles in the predetermined-shaped plastic film 14 and had no appearance defect.
  • regulated to JIS R3106: 1998 of the plastic film insertion laminated glass produced in the present Example was 20%, and the visible light transmittance prescribed
  • ISO 13837: total solar transmittance as defined in 2008 (Total Solar Transmittance) T TS was 49%.
  • Comparative Example 1 A plastic film-inserted laminated glass was produced in the same manner as in Example 1 except that in Step 3 of Example 1, the laminated interlayer film 28 was formed without forming the heat-sealing portion 29.
  • the wrinkled plastic film-inserted laminated glass was not suitable for practical use because wrinkles were observed at the periphery of the plastic film having a predetermined shape and the appearance was poor.

Landscapes

  • Joining Of Glass To Other Materials (AREA)
  • Laminated Bodies (AREA)

Abstract

La présente invention concerne un procédé de production d'un verre stratifié dans lequel est inséré un film plastique. Selon ledit procédé, une plaque de verre du côté extérieur, un film intermédiaire en résine, un film plastique, un autre film intermédiaire en résine et une plaque de verre du côté intérieur sont stratifiés dans cet ordre. Le procédé de production d'un verre stratifié dans lequel est inséré un film plastique est caractérisé en ce qu'un film coloré opaque est formé sur la partie périphérique des plaques de verre, et en ce qu'un film intermédiaire stratifié est formé par interposition du film plastique, qui est découpé de manière à obtenir une zone qui est plus grande que la zone transparente des plaques de verre mais plus petite que les plaques de verre, entre les deux films intermédiaires en résine, et par collage par fusion d'un film intermédiaire en résine au film plastique ou à l'autre film intermédiaire en résine au niveau de la partie périphérique du film plastique. L'invention décrit également un verre stratifié dans lequel est inséré un film plastique.
PCT/JP2010/055833 2009-04-16 2010-03-31 Procédé de production d'un verre stratifié dans lequel est inséré un film plastique, et verre stratifié dans lequel est inséré un film plastique WO2010119771A1 (fr)

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WO2014200108A1 (fr) * 2013-06-14 2014-12-18 積水化学工業株式会社 Film intermédiaire pour verre feuilleté, film intermédiaire multicouche pour verre feuilleté, et verre feuilleté
CN106029597A (zh) * 2014-02-25 2016-10-12 积水化学工业株式会社 塑料片材、塑料片材的制造方法、夹层玻璃用中间膜及夹层玻璃
US20210078388A1 (en) * 2017-11-30 2021-03-18 Agp America S.A. Invisible edge solid substrate compensation layer for automotive glazing
US11833783B2 (en) 2019-09-18 2023-12-05 Acr Ii Glass America Inc. Laminated glazing and methods of laminating a glazing

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JP5699738B2 (ja) * 2011-03-29 2015-04-15 コニカミノルタ株式会社 ハードコートフィルムと、それを用いた熱線遮断フィルム及び有機素子デバイス
JP5828815B2 (ja) * 2011-08-29 2015-12-09 富士フイルム株式会社 積層中間膜およびその製造方法、ならびに、合わせガラスおよびその製造方法
EP2848595B1 (fr) * 2012-05-08 2020-12-16 Konica Minolta, Inc. Verre stratifié
US10654250B2 (en) * 2012-07-31 2020-05-19 Sekisui Chemical Co., Ltd. Intermediate film for laminated glass, laminated glass, and method of mounting laminated glass
JP6127805B2 (ja) * 2013-07-24 2017-05-17 旭硝子株式会社 車両用合わせガラスおよびその製造方法
RU2687997C2 (ru) 2014-01-31 2019-05-17 Секисуй Кемикал Ко., Лтд. Ламинированное стекло и способ установки ламинированного стекла
JPWO2015147218A1 (ja) * 2014-03-28 2017-04-13 積水化学工業株式会社 合わせガラス用中間膜及び合わせガラス
US10981358B2 (en) 2018-04-03 2021-04-20 AGC Inc. Laminated glass
JP7160091B2 (ja) * 2018-04-19 2022-10-25 Ａｇｃ株式会社 車両用フロントガラス
JP2020109051A (ja) * 2018-12-28 2020-07-16 日本板硝子株式会社 自動車用合わせガラス
JP7363547B2 (ja) * 2020-02-06 2023-10-18 Ａｇｃ株式会社 合わせガラス
JPWO2022181583A1 (fr) * 2021-02-24 2022-09-01

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WO2014200108A1 (fr) * 2013-06-14 2014-12-18 積水化学工業株式会社 Film intermédiaire pour verre feuilleté, film intermédiaire multicouche pour verre feuilleté, et verre feuilleté
US10363721B2 (en) 2013-06-14 2019-07-30 Sekisui Chemical Co., Ltd. Intermediate film for laminated glass and laminated glass
US10442163B2 (en) 2013-06-14 2019-10-15 Sekisui Chemical Co., Ltd. Multilayer interlayer film having infrared ray reflection layer and thermoplastic resin, and laminated glass having such film
CN106029597A (zh) * 2014-02-25 2016-10-12 积水化学工业株式会社 塑料片材、塑料片材的制造方法、夹层玻璃用中间膜及夹层玻璃
EP3112326A4 (fr) * 2014-02-25 2017-09-20 Sekisui Chemical Co., Ltd. Feuille plastique, procédé de fabrication d'une feuille plastique, film intercalaire pour verre feuilleté, et verre feuilleté
US10434753B2 (en) 2014-02-25 2019-10-08 Sekisui Chemical Co., Ltd. Plastic sheet, method for manufacturing plastic sheet, interlayer film for laminated glass, and laminated glass
US20210078388A1 (en) * 2017-11-30 2021-03-18 Agp America S.A. Invisible edge solid substrate compensation layer for automotive glazing
US11813821B2 (en) * 2017-11-30 2023-11-14 Agp America S.A. Invisible edge solid substrate compensation layer for automotive glazing
US11833783B2 (en) 2019-09-18 2023-12-05 Acr Ii Glass America Inc. Laminated glazing and methods of laminating a glazing

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