WO2013058384A1 - Stratifié de verre - Google Patents

Stratifié de verre Download PDF

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Publication number
WO2013058384A1
WO2013058384A1 PCT/JP2012/077156 JP2012077156W WO2013058384A1 WO 2013058384 A1 WO2013058384 A1 WO 2013058384A1 JP 2012077156 W JP2012077156 W JP 2012077156W WO 2013058384 A1 WO2013058384 A1 WO 2013058384A1
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Prior art keywords
layer
heat ray
ray reflective
metal
glass
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PCT/JP2012/077156
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English (en)
Japanese (ja)
Inventor
和久 吉岡
富田　倫央
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旭硝子株式会社
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Publication of WO2013058384A1 publication Critical patent/WO2013058384A1/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
    • B32B17/10009—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
    • B32B17/10165—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
    • B32B17/1022—Metallic coatings
    • B32B17/10229—Metallic layers sandwiched by dielectric layers
    • 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
    • B32B17/10743—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
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/20—Filters
    • G02B5/208—Filters for use with infrared or ultraviolet radiation, e.g. for separating visible light from infrared and/or ultraviolet radiation

Definitions

  • the present invention relates to a glass laminate, and more particularly, to a glass laminate having excellent heat ray reflectivity and a color tone of reflected light close to neutrality.
  • Patent Document 1 using a laminated body of an Ag reflection layer and an antireflection layer made of a specific component, a glass laminate having a function of reflecting heat rays such as infrared rays and suppressing redness of the reflected light. I'm getting a body.
  • the material constituting the laminate is limited, and the heat ray reflectance is not sufficient, and there is a problem that the performance of the original heat ray reflective laminate cannot be exhibited sufficiently.
  • the glass laminate of the present invention is a glass laminate comprising a glass plate and a heat ray reflective film having a metal layer mainly composed of silver on one main surface side of the glass plate, the other of the glass plates Visible light reflectance is more than 15%, visible light transmittance is more than 30% and less than 65%, and solar reflectance Re is 40% as defined by the standard of JIS R 3106 (1998) Color coordinates in the XYZ color system in a 2 degree field of view defined by the standard of JIS Z 8722 (2009) of reflected light obtained by light incident at an incident angle of 5 degrees from a C light source ( x, y) is (0.290 ⁇ x ⁇ 0.320, 0.290 ⁇ y ⁇ 0.330).
  • FIG. 1 is a cross-sectional view showing an example of an embodiment of the glass laminate of the present invention.
  • a glass laminate 1A shown in FIG. 1 includes a glass plate 2, an adhesive layer 3 on one main surface of the glass plate 2, a heat ray reflective film 41 having a metal layer mainly composed of silver, and a resin substrate 42.
  • the other main surface of the glass plate 2 is a heat ray reflective surface 5.
  • the glass laminate 1A is prepared by preparing a heat ray reflective laminate 4 in which a heat ray reflective film 41 is formed on a resin substrate 42, and placing the heat ray reflective laminate 4 on one main surface of the glass plate 2 with an adhesive layer 3 interposed therebetween.
  • the heat ray reflective film 41 is obtained by laminating so as to be on the glass plate 2 side.
  • FIG. 2 is a cross-sectional view showing another example of the embodiment of the glass laminate of the present invention.
  • the heat ray reflective laminate 4 in which the heat ray reflective film 41 is formed on the resin base 42 is composed of two glass plates 2a via two adhesive layers 3a and 3b. 2b, and the surface on the glass plate 2b side is a heat ray reflective surface 5.
  • a glass laminate having a structure in which an adhesive layer and other functional layers are sandwiched between a plurality of glass plates is generally called “laminated glass”, and is a form of a glass laminate widely used for automobiles and buildings. It is.
  • the “heat ray reflective surface” refers to the surface of the glass laminate on which heat ray reflection is mainly performed by the action of the heat ray reflective film.
  • the side on which the heat rays are incident is a heat ray reflecting surface. If a plurality of heat ray reflective films are used, it is possible to design such that both surfaces of the glass laminate are heat ray reflective surfaces, but in a normal application, the glass laminate is from the direction facing either one of the surfaces. Designed to reflect heat rays. That is, the surface on one side of the glass laminate is a heat ray reflective surface. In the glass laminate, the main surface of the glass plate that does not have the heat ray reflective film is usually the heat ray reflective surface.
  • the glass laminate of the present invention has the following characteristics (a) and (b) in optical characteristics measured on the heat ray reflective surface.
  • (A) Reflectance and transmittance The visible light reflectance Rv is defined as 15% ⁇ Rv, the visible light transmittance Tv is defined as 30% ⁇ Tv ⁇ 65%, and the solar reflectance defined by the standard of JIS R3106 (1998). Re is 40% ⁇ Re.
  • the visible light reflectance Rv is preferably 15% ⁇ Rv ⁇ 55%, more preferably 20% ⁇ Rv ⁇ 50%. When Rv is in these ranges, visibility can be secured.
  • the visible light transmittance Tv is preferably 40% ⁇ Tv ⁇ 60%.
  • the solar reflectance Re is preferably 45% ⁇ Re, more preferably 50% ⁇ Re.
  • (B) Color Tone of Reflected Light Color coordinates in the XYZ color system in a 2 degree visual field defined by the standard of JIS Z8722 (2009) of reflected light obtained by light incident at an incident angle of 5 degrees from a C light source ( x, y) is (0.290 ⁇ x ⁇ 0.320, 0.290 ⁇ y ⁇ 0.330).
  • the color tone of the reflected light is a color tone that can be said to be almost neutral in appearance. It is.
  • the color coordinates (x, y) are more preferably (0.290 ⁇ x ⁇ 0.310, 0.290 ⁇ y ⁇ 0.320).
  • Such optical characteristics (a) and (b) in the glass laminate of the present invention are obtained from all components including the glass plate and the heat ray reflective film constituting the glass laminate, for example, the glass laminate 1A shown in FIG.
  • the glass plate 2, the adhesive layer 3, the heat ray reflective film 41 having a metal layer mainly composed of silver and the inorganic layer, and the resin substrate 42 have optical characteristics obtained by the comprehensive action of the optical characteristics of each.
  • the excellent heat ray reflection function of the glass laminate and the expression of reflected light having a color tone close to neutrality are mainly attributed to the optical characteristics of the heat ray reflective film having a metal layer mainly composed of silver.
  • the heat ray reflective film having such optical characteristics will be specifically described as a heat ray reflective laminate in which the heat ray reflective film is formed on a resin substrate.
  • the heat ray reflective film used in the present invention is a heat ray reflective film having a metal layer mainly composed of silver and an inorganic layer, and realizes the optical characteristics of (a) and (b) above when a glass laminate is formed. There is no particular limitation as long as it is possible.
  • the said heat ray reflective film is prepared as a heat ray reflective laminated body in which this heat ray reflective film was formed on the resin base
  • a transparent resin substrate As the resin substrate that the heat ray reflective laminate has, a transparent resin substrate is preferable. “Transparent” means that the visible light transmittance Tv defined by the standard of JIS R3106 (1998) is 60% or more.
  • the transparent resin substrate preferably has a visible light transmittance Tv of 80% or more, and more preferably 90% or more.
  • the material of the transparent resin substrate is polyethylene terephthalate (PET), polyethylene naphthalate, triacetyl cellulose (MC), polycarbonate (PC), polymethyl methacrylate (PMMA), polypropylene (PP), polyethylene (PE), polyether sulfide. And polysulfide.
  • a film produced by a stretching method such as a PET film is relatively high in strength, and can suppress defects such as film breakage that occur at the time of processing with an adhesive layer.
  • the resin substrate is preferable.
  • the thickness of the resin substrate is preferably 5 ⁇ m or more and 200 ⁇ m or less.
  • As the resin substrate a film-like resin substrate is preferable.
  • ⁇ Heat ray reflective film> As the heat ray reflective film formed on the resin substrate of the heat ray reflective laminate, an inorganic layer having a refractive index of 1.55 to 2.5 from the resin substrate side, a metal layer mainly composed of silver, Is a multilayer film in which n metal layers and n + 1 inorganic layers (where n is an integer of 1 to 4) are provided, and the inorganic layer is a metal oxide or metal layer.
  • a heat ray reflective film which is a layer made of a silver alloy containing seeds or more and can realize the optical characteristics of the above (a) and (b) can be mentioned.
  • the term “to” indicating the above numerical range is used in the sense that the numerical values described before and after it are used as the lower limit value and the upper limit value. Unless otherwise specified, “to” is the same in the following specification. Used with meaning.
  • the following films (A) to (D) are arranged in that order every time the number n of metal layers of the heat ray reflective film is 4 to 1.
  • a configuration is mentioned.
  • (A) n 4, ie, when the metal layer is 4 layers and the inorganic layer is 5 layers
  • the thickness of the 5 inorganic layers is set to h1, h2, h3, h4 and h5 in this order from the resin substrate side , (H3 + h5) ⁇ (h1 + h2 + h3 + h4 + h5) ⁇ 3/8.
  • the film thickness of each of the five inorganic layers has a relationship of h5 ⁇ (h1 + h2 + h3 + h4 + h5) / 10. More preferably, the film thickness of each of the five inorganic layers has a relationship of h3 ⁇ (h1 + h2 + h3 + h4 + h5) / 5.
  • m3 is the largest of m1 to m4, and m3> 1.3 ⁇ m2 and m3> Film structure satisfying 1.3 ⁇ m 4. More preferably, the thickness of each of the four metal layers is such that m4 is the smallest of m1 to m4 and 10% or less smaller than any of m1 to m3.
  • n 3
  • the thickness of the four inorganic layers is set to h1, h2, h3, and h4 in this order from the resin substrate side.
  • (1) h2 is the largest of h1 to h4.
  • the constituent materials of the metal layer are as follows.
  • the inorganic layer having a refractive index of 1.55 to 2.5 that is alternately laminated with the metal layer to form the heat ray reflective film is, as described above, from the group consisting of metal oxide, metal nitride, and metal oxynitride. Contains at least one selected.
  • the inorganic layer has a refractive index of 1.55 to 2.5, preferably 1.8 to 2.5, and particularly preferably 1.9 to 2.5. By setting the refractive index within this range, the transmittance can be increased due to the interference effect with the metal layer.
  • “Refractive index” means the refractive index at a wavelength of 550 nm. In addition, as long as a refractive index exists in the said range, it may be the same in each layer of the inorganic substance layer which exists in multiple numbers in a heat ray reflective film, or may differ.
  • Examples of the metal oxide having a refractive index of 1.55 to 2.5 include aluminum oxide, zinc oxide, indium oxide, titanium oxide, niobium oxide, tin oxide, bismuth oxide, tantalum oxide, tungsten oxide, and zirconium oxide.
  • the metal oxide as a component is mentioned.
  • zinc oxide is a main component in that the compatibility with silver contained in the metal layer is good and the durability of the heat ray reflective film can be improved.
  • Examples of the metal nitride having a refractive index of 1.55 to 2.5 include metal nitrides mainly composed of silicon nitride (Si 3 N 4 ), aluminum nitride (AlN), and the like.
  • Examples of the metal oxynitride having a refractive index of 1.55 to 2.5 include metal oxynitrides mainly composed of silicon oxynitride (SiON), aluminum oxynitride (AlON), and the like.
  • the main component means a case where 80% or more of the metal oxide, metal nitride, or metal oxynitride mentioned as the main component is included.
  • the inorganic layer is preferably a layer made of zinc oxide containing at least one element selected from the group consisting of tin, aluminum, chromium, titanium, silicon, boron, magnesium, indium and gallium.
  • An indium oxide layer containing a tin element is also preferable.
  • Particularly preferred as the inorganic layer is zinc oxide containing aluminum element (hereinafter abbreviated as AZO), zinc oxide containing gallium element (hereinafter abbreviated as GZO), or zinc oxide containing titanium element (hereinafter referred to as AZO). , Abbreviated as TZO).
  • the constituent material of an inorganic layer may be the same in each layer of the inorganic layer which exists in multiple numbers in a heat ray reflective film, or may differ.
  • AZO zinc and aluminum are considered to exist as zinc oxide and aluminum oxide or in a mixed form of these composite oxides.
  • GZO is used as the inorganic layer
  • zinc and gallium are present as zinc oxide and gallium oxide or in a mixed form of these composite oxides.
  • TZO is used as the inorganic layer
  • zinc and titanium exist as zinc oxide and titanium oxide or in a mixed form of these composite oxides.
  • the inorganic layer is 90% by mass or more in total of Al 2 O 3 and ZnO in terms of oxide, and in the case of GZO, 90% by mass or more in total of Ga 2 O 3 and ZnO in terms of oxide.
  • TiO 2 and ZnO in a total amount of 90% by mass or more, more preferably 95% by mass or more, and more preferably 99% by mass or more in total. It is particularly preferable to do this.
  • the refractive index of AZO is 1.9 to 2.2 depending on the content of the aluminum oxide, and the inorganic layer made of AZO plays a role as a high refractive index layer.
  • the refractive index of GZO is 1.9 to 2.2 depending on the content of gallium oxide, and the inorganic layer made of GZO plays a role as a high refractive index layer.
  • the refractive index of TZO is 1.9 to 2.2 depending on the titanium oxide content, and the inorganic layer made of TZO plays a role as a high refractive index layer.
  • AZO, GZO, or TZO When AZO, GZO, or TZO is used as a constituent material of the inorganic layer, these include zinc oxide and thus have crystallinity similar to silver. Therefore, it is easy to crystallize silver in the metal layer formed on the surface of the inorganic layer.
  • the inorganic layer includes aluminum, gallium, or titanium, the internal stress of the inorganic layer can be reduced. Therefore, when AZO, GZO, or TZO is used as the inorganic layer, silver migration can be prevented, conductivity can be increased, and internal stress of the inorganic layer can be reduced.
  • the content of aluminum oxide or gallium oxide is preferably 1 to 15% by mass with respect to the total amount of aluminum oxide or gallium oxide and zinc oxide.
  • the internal stress of the inorganic layer can be sufficiently reduced, and the adhesion between the inorganic layer and the metal layer can be maintained.
  • moisture resistance is improved.
  • moisture resistance can be maintained by setting it as 15 mass% or less. This is presumably because the crystallinity of zinc oxide can be maintained and the compatibility with silver can be maintained by setting the ratio of aluminum oxide or gallium oxide to a certain level or less.
  • the amount of aluminum oxide or gallium oxide is more preferably 2 to 10% by mass, and 3 to 7% by mass. % Is particularly preferred.
  • the content of titanium oxide is preferably 5 to 15% by mass with respect to the total amount of titanium oxide and zinc oxide.
  • the internal stress of an inorganic layer can fully be reduced and the adhesiveness of an inorganic layer and a metal layer can be maintained.
  • moisture resistance is improved.
  • moisture resistance can be maintained by setting it as 15 mass% or less. This is considered to be because the crystallinity of zinc oxide can be maintained and the compatibility with silver can be maintained by setting the ratio of titanium oxide to a certain level or less.
  • the amount of titanium is more preferably 7 to 12% by mass.
  • Each inorganic layer may be composed of one layer made of a uniform inorganic material, or may have a multilayer structure in which two or more layers of different kinds of inorganic materials are stacked.
  • the inorganic layer may have a two-layer structure such as an AZO layer / TZO layer, a niobium oxide layer / TZO layer, or a three-layer structure such as a titanium oxide layer / tin oxide layer / TZO layer.
  • each layer of the inorganic layer present in a plurality in the heat ray reflective film may have the same configuration or a different configuration.
  • the refractive index is 1.55 to 2.5 as long as the average refractive index of all the constituent layers constituting the inorganic layer is 1.55 to 2.5.
  • a layer that deviates from the above may be included.
  • Average refractive index means a refractive index averaged by weighting the refractive index of each layer constituting the inorganic layer by weighting, and is obtained by the following formula (1).
  • m represents the number of layers constituting the inorganic layer
  • nj represents the refractive index of the jth layer
  • dj represents the film thickness of the jth layer.
  • the metal layer is preferably a layer made of pure silver from the viewpoint of reducing the resistance value of the heat ray reflective film.
  • the “pure silver” in the present invention means that 99.9% by mass or more of silver is contained in the metal layer (100% by mass).
  • the metal layer is made of a silver alloy containing at least one or more other metals selected from the group consisting of gold, palladium, copper and bismuth from the viewpoint of suppressing diffusion of silver and consequently increasing moisture resistance.
  • a layer is also preferred.
  • the total of other metals is preferably 0.2 to 3.0% by mass in the metal layer (100% by mass) in order to make the specific resistance 10.0 ⁇ ⁇ cm or less, particularly 5 ⁇ ⁇ cm or less. 2 to 1.5% by mass is more preferable.
  • the metal layer containing silver as a main component means a metal layer containing 80% or more by mass of silver.
  • the heat ray reflective film according to the glass laminate of the present invention is a heat ray reflective film laminated such that the inorganic layer and the metal layer satisfy the conditions (A) to (D), for example.
  • the film configuration of the heat ray reflective film in the above (A) to (D) will be described below with reference to the drawings as necessary.
  • the heat ray reflective film 41 side is bonded to one main surface of the glass plate 2 through the adhesive layer 3, so that the glass plate 2 The other main surface is made to function as the heat ray reflective surface 5.
  • the resin substrate 42 side is bonded to the glass plate 2a via the adhesive layer 3a
  • the heat ray reflective film 41 side is bonded to the glass plate 2b via the adhesive layer 3b.
  • the surface in contact with the air on the side of the glass plate 2b is caused to function as the heat ray reflective surface 5 by being adhered to.
  • n 4
  • five inorganic layers 43a and 43b are formed on the resin substrate 42.
  • 43c, 43d, and 43e and four metal layers 44a, 44b, 44c, and 44d are formed by alternately laminating one layer each in the order of the inorganic layer and the metal layer from the resin substrate 42 side.
  • the metal layers are collectively referred to as a metal layer 44.
  • the inorganic substance layer closest to the resin base 42 that is, the first inorganic substance from the resin base 42 is shown.
  • the film thickness of the layer 43a is h1
  • the film thickness of the second inorganic layer 43b is h2
  • the film thickness of the third inorganic layer 43c is h3
  • the film thickness of the fourth inorganic layer 43d is h4, and the fifth inorganic layer 43e.
  • the film thickness will be described below as h5.
  • the metal layer closest to the resin substrate 42 that is, the film thickness of the first metal layer 44a from the resin substrate 42 is m1
  • the film thickness of the first metal layer 44b Is m2
  • the thickness of the third metal layer 44c is m3
  • the thickness of the fourth metal layer 44d is m4.
  • the optical characteristics measured on the heat ray reflective surface of the glass laminate are the reflectance of the above (a)
  • the film configuration for satisfying the conditions of the transmittance and the color tone of the reflected light of (b) above is such that the film thicknesses h1 to h5 of the inorganic layers are (h3 + h5) ⁇ (h1 + h2 + h3 + h4 + h5) ⁇
  • the film configuration has a relationship of 3/8 (hereinafter, this condition is referred to as (A-1)).
  • the heat ray reflective film 41A when the glass laminate is formed by satisfying the condition (A-1), the heat ray reflective film 41A satisfies the above conditions (a) and (b), has an excellent heat ray reflection function, and reflects light.
  • a glass laminate having a color tone close to neutrality can be provided.
  • the film thicknesses h1 to h5 of the inorganic layers are h5 ⁇ (h1 + h2 + h3 + h4 + h5) / 10 (hereinafter, this condition is expressed as (A -2))).
  • this condition is expressed as (A -2))).
  • m3 is within m1 to m4. More preferably, m3> 1.3 ⁇ m2 and m3> 1.3 ⁇ m4 (hereinafter, this condition is referred to as (A-3)).
  • the thicknesses h1 to h5 of each of the inorganic layers are h3 ⁇ (h1 + h2 + h3 + h4 + h5) / 5 (hereinafter, this condition is A-4))) is preferred.
  • the thickness m1 to m4 of each of the metal layers is the smallest among m1 to m4. More preferably, it is 10% or more smaller than any of m1 to m3 (hereinafter, this condition is referred to as (A-5)).
  • heat ray reflective film 41A in which the four metal layers and the five inorganic layers are alternately laminated as described above, particularly preferable film configurations include the above (A-1), (A-2) and (A-3). And a film configuration that satisfies all the conditions (A-1), (A-4), and (A-5).
  • the film thicknesses h1 to h5 of the five inorganic layers 43a to 43e are preferably 200 to 320 nm and more preferably 220 to 300 nm as the total film thickness (h1 + h2 + h3 + h4 + h5).
  • h1 is preferably 10 to 45 nm, more preferably 15 to 38 nm, and particularly preferably 15 to 30 nm.
  • h2 is preferably 60 to 100 nm, and more preferably 65 to 75 nm.
  • h3 is preferably 35 to 80 nm, and more preferably 65 to 75 nm.
  • h4 is preferably 50 to 80 nm, and more preferably 65 to 75 nm.
  • h5 is preferably 10 to 50 nm, more preferably 10 to 30 nm, and particularly preferably 10 to 20 nm.
  • the film thicknesses m1 to m4 of the four metal layers 44a to 44d are preferably 400 to 650 nm, more preferably 430 to 600 nm, as the total film thickness (m1 + m2 + m3 + m4).
  • Each film thickness of m1 to m4 satisfies the above preferable relationship and ratio, and m1 is preferably 5 to 25 nm, and more preferably 10 to 20 nm.
  • m2 is preferably 5 to 20 nm, more preferably 7 to 17 nm, and particularly preferably 8 to 15 nm.
  • m3 is preferably 5 to 30 nm, more preferably 10 to 25 nm, and particularly preferably 15 to 23 nm.
  • m4 is preferably 5 to 20 nm, more preferably 7 to 18 nm, and particularly preferably 8 to 15 nm.
  • n 3
  • the metal layer is three layers and the inorganic layer is four layers
  • the heat ray reflective laminate 4B whose sectional view is shown in FIG. 4, four inorganic layers 43a and 43b are formed on the resin substrate 42.
  • 43c, and 43d and three metal layers 44a, 44b, and 44c are formed by alternately laminating one layer each in the order of the inorganic layer and the metal layer from the resin substrate 42 side. .
  • the thickness of the inorganic layer closest to the resin base 42 that is, the thickness of the first inorganic layer 43a from the resin base 42 is h1, 2nd.
  • the film thickness of the inorganic layer 43b is h2
  • the film thickness of the third inorganic layer 43c is h3
  • the film thickness of the fourth inorganic layer 43d is h4.
  • the thickness of the three metal layers 44a to 44c in the heat ray reflective film 41 the thickness of the metal layer closest to the resin base 42, that is, the thickness of the first metal layer 44a from the resin base 42 is m1, the second. In the following description, the thickness of the metal layer 44b is m2, and the thickness of the third metal layer 44c is m3.
  • the optical characteristics measured on the heat ray reflective surface of the glass laminate are the reflectance of the above (a)
  • the film configuration for satisfying the conditions of the transmittance and the color tone of the reflected light of (b) above is the film thickness h1 to h4 of each layer of the inorganic layer, and the film thickness m1 of each layer of the metal layer.
  • m3 is a film configuration satisfying all the following relationships (1) to (4).
  • (1) h2 is the largest of h1 to h4.
  • the above conditions (1) and (2) indicate that h2 is the maximum among h1 to h4, and h2 exceeds 1.3 times h3.
  • h2 is preferably 2.3 times or less of h3, and h2 is more preferably 1.4 to 1.8 times h3.
  • the condition of h2 according to the above (3) is (h1 + h2 + h3 + h4) ⁇ 0.35 ⁇ h2 ⁇ (h1 + h2 + h3 + h4) ⁇ 0.55, but this condition is (h1 + h2 + h3 + h4) ⁇ 0.4 ⁇ h2 ⁇ (h1 + h2 + h3 + h4) ) ⁇ 0.5 is more preferable.
  • m2 is the maximum among m1 to m3. Further, m2 is preferably 1.2 to 3.5 times, and more preferably 1.5 to 3 times each of m1 and m3.
  • the heat ray reflecting function satisfying the optical property conditions (a) and (b) when the glass laminate is formed. It is possible to provide a glass laminate having an excellent color tone and a color tone of reflected light close to neutrality.
  • the film thicknesses h1 to h4 of the four inorganic layers 43a to 43d are preferably 200 to 240 nm, more preferably 210 to 230 nm as the total film thickness (h1 + h2 + h3 + h4).
  • h1 is preferably 10 to 40 nm, more preferably 15 to 35 nm, and particularly preferably 20 to 30 nm.
  • h2 is preferably 80 to 130 nm, more preferably 85 to 120 nm, and particularly preferably 90 to 110 nm.
  • h3 is preferably 40 to 80 nm, and more preferably 50 to 70 nm.
  • h4 is preferably 20 to 50 nm, more preferably 25 to 45 nm.
  • the film thicknesses m1 to m3 of the three metal layers 44a to 44c are preferably 30 to 50 nm and more preferably 35 to 45 nm as the total film thickness (m1 + m2 + m3).
  • the film thicknesses m1 to m3 satisfy the above relationships and ratios, respectively, and m1 and m3 are each preferably 5 to 20 nm, more preferably 7 to 15 nm. m2 is preferably 15 to 30 nm.
  • the film thickness of the three inorganic layers is h1, h2, and h3 in order from the resin substrate side
  • the film thickness of the two metal layers is m1 and m2 in order from the resin substrate side. The relationship of film thickness will be described.
  • the optical characteristics measured on the heat ray reflective surface of the glass laminate are the reflectance and transmission of (a) above.
  • Specific examples of the film configuration for satisfying the conditions of the ratio and the color tone of the reflected light (b) include a film configuration satisfying the relationship of m2> 2 ⁇ m1 or m1> 2 ⁇ m2.
  • the total thickness (h1 + h2 + h3) of the three inorganic layers is preferably 130 to 170 nm, and more preferably 140 to 165 nm.
  • h1 is preferably 20 to 40 nm, more preferably 25 to 35 nm, and particularly preferably 28 to 33 nm.
  • h2 is preferably 80 to 100 nm, more preferably 85 to 97 nm, and particularly preferably 88 to 95 nm.
  • h3 is preferably 15 to 45 nm, more preferably 20 to 42 nm.
  • the film thicknesses m1 and m2 of the two metal layers are preferably 20 to 40 nm and more preferably 25 to 35 nm as the total film thickness (m1 + m2).
  • Each film thickness of m1 and m2 satisfies the above relationship and ratio, and m1 is preferably 5 to 15 nm, and more preferably 8 to 12 nm. m2 is preferably 10 to 30 nm, more preferably 15 to 25 nm.
  • n 1, that is, when the metal layer is one layer and the inorganic layer is two layers
  • n 1, that is, one metal layer and two inorganic layers.
  • the thickness of the two inorganic layers is h1 and h2 in order from the resin substrate side, and the thickness of one metal layer is m1.
  • the optical characteristics measured on the heat ray reflective surface of the glass laminate are the reflectance and transmission of (a) above.
  • Specific examples of the film configuration for satisfying the conditions of the ratio and the color tone of the reflected light of (b) above include a film configuration that satisfies the relationship of m1> 15 nm and 160 nm> (h1 + h2)> 100 nm.
  • the relationship of m1> 15 nm and 160 nm> (h1 + h2)> 100 nm in the heat ray reflective film of n 1
  • the film thicknesses h1 and h2 of the two inorganic layers are 160 nm> (h1 + h2)> 100 nm as the total film thickness (h1 + h2), preferably 150 nm> (h1 + h2)> 105 nm, and 130 nm> (h1 + h2)>. 110 nm is more preferable.
  • the thicknesses of h1 and h2 satisfy the above relationships and ratios, respectively, and h1 is preferably 40 to 65 nm, more preferably 45 to 60 nm, and particularly preferably 50 to 58 nm.
  • h2 is preferably 45 to 80 nm, more preferably 50 to 75 nm, and particularly preferably 60 to 70 nm.
  • the film thickness m1 of the metal layer is m1> 15 nm, and preferably 18 to 25 nm.
  • the heat ray reflective laminates in the glass laminate of the present invention are the heat ray reflective laminates 4A and 4B composed of the resin base 42 and the heat ray reflective films 41A and 41B shown in FIGS.
  • the heat ray reflective laminate 4A shown in FIG. 3 will be described as an example, and a method for forming an arbitrary layer or the heat ray reflective film 41A will be described, but the same can be applied to other heat ray reflective laminates.
  • a waterproof layer or the like can be provided on the surface of the heat ray reflective film 41A on the resin substrate 42.
  • the waterproof layer is a layer that protects the inorganic layer 43 and the metal layer 44 from moisture, and is preferably formed.
  • the waterproof layer include oxide films and nitride films of metals such as tin, indium, titanium, and silicon.
  • an oxide (ITO) layer of indium and tin is particularly preferable.
  • the film thickness of the waterproof layer is preferably 2 to 30 nm, more preferably 3 to 20 nm.
  • Examples of the method for forming the inorganic layer 43 and the metal layer 44 constituting the heat ray reflective film 41A and the waterproof layer include a sputtering method, a vacuum deposition method, an ion plating method, a chemical vapor deposition method, and the like. Of these, the sputtering method is preferred because of the good quality and stability of characteristics.
  • the formation of the heat ray reflective film 41A by the sputtering method can be performed as follows, for example.
  • a raw material target of a material constituting the inorganic layer 43 on the surface of the resin base 42 for example, a zinc oxide (AZO, GZO or TZO) target containing aluminum oxide, gallium oxide or titanium oxide, or a zinc oxide / titanium oxide mixed target
  • the inorganic layer 43 is formed by introducing argon gas mixed with oxygen gas and performing pulse sputtering using a predetermined composition of the components listed as components constituting the inorganic layer as a raw material target.
  • each of the constituent layers of the inorganic layer is sequentially laminated by repeatedly performing the same pulse sputtering operation using a raw material target of a predetermined inorganic layer material.
  • the inorganic layer 43 having the structure is formed.
  • argon gas is introduced using a pure silver or silver alloy target, and pulse sputtering is performed to form the metal layer 44. This operation is repeated, and finally, the inorganic layer 43 is formed by the same method as described above, thereby forming the heat ray reflective film 41A of the multilayer structure.
  • an argon gas mixed with oxygen gas is introduced into the surface of the heat ray reflective film 41A obtained as described above using, for example, an ITO target, Pulse sputtering is performed to form a waterproof layer.
  • the film thickness of each layer can be adjusted by adjusting the sputtering time.
  • Glass plate The glass plate used for the glass laminate of the present invention, for example, the glass plate 2 in the glass laminate 1A shown in the embodiment of FIG. 1, and the glass plates 2a and 2b in the glass laminate 1B shown in the embodiment of FIG.
  • a glass plate used for a window glass of a vehicle such as an automobile, a train, or an aircraft or a building is appropriately selected and used according to the application.
  • a narrowly-defined glass plate made of an inorganic substance but also a so-called organic glass plate made of plastic (a broadly-defined glass plate including organic glass) may be used.
  • the plastic glass plate examples include a plate made of a resin such as polycarbonate, polypropylene, or polystyrene, an acrylic resin, a methacrylic resin, or the like.
  • a glass plate in a narrow sense made of an inorganic material a transparent soda-lime silica glass, borosilicate glass, alkali-free glass, quartz glass, etc., to which no colorant is added, provided that the optical properties of the glass laminate of the present invention are obtained.
  • colored transparent glass or dark transparent glass colored bronze, gray, blue or the like with an appropriate colorant can be used.
  • a glass plate that absorbs ultraviolet rays or infrared rays can also be used.
  • a glass plate that absorbs light having a wavelength in the near-infrared region a green colored transparent glass that is a colored transparent glass, specifically, soda lime silica glass containing iron may be used. That is, the amount of when the amount of iron contained in the mother glass soda lime silica system, for example in terms of Fe 2 O 3 was total iron (i.e., the total amount of iron element contained in the glass is calculated as a Fe 2 O 3 ) Is a soda lime silica glass having a mass percentage display of 0.3 to 1%.
  • the mass of FeO (divalent iron) in terms of Fe 2 O 3 is Fe More preferably, it is 20 to 40% of the mass of total iron in terms of 2 O 3 .
  • cerium or the like can be added to soda lime silica-based mother glass.
  • soda lime silica glass having the following composition substantially in terms of mass percentage. SiO 2 : 65 to 75%, Al 2 O 3 : 0.1 to 5%, Na 2 O + K 2 O: 10 to 18%, CaO: 5 to 15%, MgO: 1 to 6%, Fe 2 O 3 conversion Total iron: 0.3 to 1%, CeO 2 converted total cerium and / or TiO 2 : 0.5 to 2%.
  • the dark transparent glass is not particularly limited, but is, for example, soda lime silica glass containing iron at a high concentration.
  • the glass plate may be subjected to chemical strengthening, physical strengthening, chemical and physical strengthening, or bend processing. There may be.
  • the thickness of the glass plate 2 in the glass laminate 1A shown in FIG. 1 and the thickness of the glass plates 2a and 2b in the glass laminate 1B shown in FIG. 2 are not particularly limited, and the window glass of vehicles such as automobiles, trains and aircraft It is appropriately selected according to the use of the window glass of the building or the building.
  • Adhesive layer As the adhesive layer in the glass laminate of the present invention, for example, the adhesive layer 3 in the glass laminate 1A shown in the embodiment of FIG. 1 or the adhesive layers 3a and 3b in the glass laminate 1B shown in the embodiment of FIG. Usually obtained by processing an intermediate film used when manufacturing a glass laminate such as a laminated glass, such as a resin composition mainly composed of a plastic resin, formed into a sheet shape, or a pressing process described later. There are no particular restrictions on the adhesive layer.
  • an acrylic pressure-sensitive adhesive comprising a polymer or copolymer containing a polymer unit based on an acrylic monomer as a main component, or an acrylic pressure-sensitive adhesive used together with a cross-linking agent by introducing a cross-linking group into the polymer or copolymer.
  • molded the resin composition which has a thermoplastic resin as a main component used for formation of an adhesive layer in the sheet form is demonstrated concretely.
  • the thermoplastic resin is not particularly limited, and examples thereof include polyvinyl acetal resin, ethylene-vinyl acetate copolymer resin, ethylene-acrylic copolymer resin, polyurethane resin, polyurethane resin containing sulfur element, and polyvinyl alcohol resin. It is done. Among these, a polyvinyl acetal resin is preferable because an interlayer film for a glass laminate that exhibits excellent adhesion to a glass plate can be obtained when used in combination with a plasticizer.
  • the polyvinyl acetal resin may be a polyvinyl acetal resin obtained by acetalizing polyvinyl alcohol with an aldehyde, and a polyvinyl butyral resin is preferable. Moreover, you may use together 2 or more types of polyvinyl acetal resin as needed.
  • the degree of acetalization of the polyvinyl acetal resin is preferably 40 to 85 mol%, more preferably 60 to 75 mol%.
  • the amount of hydroxyl group is preferably 15 to 35 mol%.
  • the hydroxyl group amount is 15 mol% or more, the adhesiveness between the glass laminate intermediate film and the glass plate is good, the adhesiveness between the resulting adhesive layer and the glass plate is good, and the resulting glass laminate is further obtained Excellent penetration resistance.
  • the hydroxyl group amount is 35 mol% or less, the adhesive layer in the obtained glass laminate has an appropriate hardness.
  • the polyvinyl acetal resin can be prepared by acetalizing polyvinyl alcohol with aldehyde.
  • the polyvinyl alcohol is usually obtained by saponifying polyvinyl acetate, and polyvinyl alcohol having a saponification degree of 80 to 99.8 mol% is generally used.
  • the degree of polymerization of the polyvinyl alcohol is preferably 500 to 4000. When the polymerization degree of the polyvinyl alcohol is 500 or more, the penetration resistance of the obtained glass laminate is good. When the polymerization degree of the polyvinyl alcohol is 4000 or less, it is easy to form an adhesive layer during the production of the glass laminate.
  • a more preferable range of the polymerization degree of the polyvinyl alcohol is 1000 to 3600.
  • the aldehyde is not particularly limited, but generally an aldehyde having 1 to 10 carbon atoms is preferable.
  • the aldehyde having 1 to 10 carbon atoms is not particularly limited.
  • n-butyraldehyde, n-hexylaldehyde, and n-valeraldehyde are preferable, and n-butyraldehyde is more preferable.
  • These aldehydes may be used alone or in combination of two or more.
  • the interlayer film applied to the glass laminate of the present invention may further contain a plasticizer.
  • a plasticizer By containing a plasticizer, the adhesive layer in the obtained glass laminated body becomes flexible, and can exhibit high adhesiveness to glass.
  • the plasticizer include triethylene glycol di-2-ethylbutyrate, triethylene glycol di-2-ethylhexanoate, triethylene glycol dicaprylate, triethylene glycol di-n-octanoate, and triethylene glycol diester.
  • the content of the plasticizer is not particularly limited, and a preferable range with respect to 100 parts by mass of the thermoplastic resin is 30 to 70 parts by mass.
  • a preferable range with respect to 100 parts by mass of the thermoplastic resin is 30 to 70 parts by mass.
  • the content of the plasticizer is 30 parts by mass or more, the interlayer film for a glass laminate or the obtained adhesive layer does not become too hard, and the handleability is good.
  • the content of the plasticizer is 70 parts by mass or less, the plasticizer is not separated from the glass laminate intermediate film or the resulting adhesive layer.
  • a more preferable range of the plasticizer content is 35 to 63 parts by mass.
  • the surface of the intermediate film applied to the glass laminate of the present invention before lamination may be flat or embossed.
  • the intermediate film may have various functions such as ultraviolet absorption, oxidation prevention, light stability, flame retardance, antistatic, adhesion force adjustment, moisture resistance, and infrared shielding as required.
  • infrared shielding fine particles may be dispersed and blended.
  • the infrared shielding fine particles As the material of the infrared shielding fine particles, Re, Hf, Nb, Sn, Ti, Si, Zn, Zr, Fe, Al, Cr, Co, Ce, In, Ni, Ag, Cu, Pt, Mn, W, V , Mo metals, oxides, nitrides, sulfides, silicon compounds thereof, inorganic fine particles doped with Sb or F, and the like. These fine particles can be used alone or as a composite. In addition, it is effective to obtain a variety of performances required for automobiles, for example, by using a mixture obtained by mixing these or a single compound with an organic resin or a coating coated with an organic resin.
  • the infrared shielding fine particles at least one / both of tin oxide (ATO) fine particles doped with antimony and indium oxide (ITO) fine particles doped with tin may be used. Since ATO fine particles and ITO fine particles are excellent in infrared shielding performance, a desired infrared shielding performance can be realized with a slight blending amount in the intermediate film. In addition, since ITO fine particle is excellent in infrared shielding performance compared with ATO fine particle, it is particularly preferable to use ITO fine particle as infrared shielding fine particle. Furthermore, organic infrared absorbers such as phthalocyanine can be used as the infrared shielding fine particles.
  • the adhesive layer formed using an interlayer having an infrared shielding function absorbs visible light and infrared light.
  • the adhesive layer having an infrared shielding function is located on the side farther from the heat ray reflective surface of the glass laminate than the heat ray reflective laminate, for example, FIG. Is preferably disposed as the adhesive layer 3a.
  • the thickness of the adhesive layer 3 in the glass laminate 1A shown in the embodiment of FIG. 1 and the thickness of the adhesive layers 3a and 3b in the glass laminate 1B shown in the embodiment of FIG. 2 is approximately 10 ⁇ m or more and 300 ⁇ m or less. Thickness is mentioned.
  • the adhesive layer 3 is superimposed on the heat ray reflective film 41 side of the heat ray reflective laminate 4, and for the glass laminate 1B, the adhesive layers 3a, 3b are superimposed on both surfaces of the heat ray reflective laminate 4. The whole may be heated and pressed to form a temporary pressure bonded body.
  • the glass laminate 1A shown in FIG. 1 and the glass laminate 1B shown in FIG. 2 have been described above as an example of the glass laminate of the present invention. However, as long as it is not contrary to the spirit of the present invention, The configuration can be changed as appropriate. For example, by replacing the resin base 42 of the heat ray reflective laminates 4A and 4B described in FIG. 3 and FIG. 4 with the glass plate 2a shown in FIG. 2, a glass laminate having a configuration that does not require the adhesive layer 3a is obtained. Can do. That is, a glass laminate in which the heat ray reflective film 41A described in FIGS. 3 and 4 is formed on the glass plate 2a shown in FIG. 2 and the glass plate 2b is laminated thereon via the adhesive layer 3b can be obtained.
  • Examples 1 to 16 are examples, and examples 21 to 30 are comparative examples.
  • Examples 1 to 8 A glass laminate 1A having the same configuration as that shown in FIG. 1 by the method described below has a heat ray reflective laminate having a heat ray reflective film 41 in which inorganic layers and metal layers are alternately laminated on a resin substrate 42.
  • An optical simulation was performed on Examples 1 to 8 in which the number of layers of the body 4 and the film thickness of each layer were changed within the scope of the present invention.
  • Example 1, Example 2, Example 4, Example 5, and Example 7, 1 A of glass laminated bodies of the same structure as the glass laminated body used for optical simulation were actually produced, and various measurements were performed.
  • the inorganic layer and the metal layer constituting the heat ray reflective film were used in the optical simulation as a zinc oxide layer and a gold-silver alloy layer containing the following titanium element, respectively.
  • the refractive index n was 2.02 (refractive index at a wavelength of 550 nm).
  • the refractive index n was 0.086 (refractive index at a wavelength of 550 nm).
  • Example 1 4, 4 metal layers, inorganic material
  • Table 1 for Example 5 when the number of layers is 5
  • Example 8 1, 1 metal layer, 2 inorganic layers
  • a PET film having a thickness of 100 ⁇ m is prepared as the resin substrate 42, and the optical simulation is performed so that the film thicknesses of the inorganic layer 43 and the metal layer 44 on the resin substrate 42 are the film thicknesses shown in Example 1 of Table 1.
  • the heat ray reflective laminate 4 was produced by laminating the inorganic layer 43 and the metal layer 44 by the same method as described.
  • One glass soda lime glass having a size of 50 mm ⁇ 50 mm and a thickness of 2 mm was prepared as the glass plate 2.
  • the adhesive layer 3 one acrylic pressure-sensitive adhesive sheet (LS026UV2, trade name, manufactured by Lintec Corporation) (50 mm ⁇ 50 mm, thickness 0.02 mm) was prepared.
  • the acrylic adhesive sheet 3 and the glass plate 2, the glass plate 2 / acrylic adhesive sheet 3 / heat ray reflective laminate 4 are laminated in this order, and the glass plate 2 / adhesive layer 3.
  • the glass laminated body of Example 1 of the structure of the heat ray reflective laminated body 4 was produced.
  • the heat ray reflective laminate 4 was laminated so that the zinc oxide layer containing the titanium element of the heat ray reflective film 41 was in contact with the adhesive layer 3.
  • the surface of the glass plate 2 that is in contact with the atmosphere is the heat ray reflective surface 5.
  • glass laminates having the same film thickness configurations of the inorganic layer 43 and the metal layer 44 as those used in the optical simulations shown in Tables 1 to 3 A body 1A was produced.
  • Table 1 for the case of 5 layers
  • Examples 9 to 16, Examples 26 to 30 In the same manner as in Examples 1 to 8, the glass laminate 1B having the same configuration as that shown in FIG. 2 is used as the heat ray reflective laminate, and the heat ray reflective laminate in which inorganic layers and metal layers are alternately laminated on the resin substrate. Optical simulation was performed by changing the number of layers of the heat ray reflective laminate having a film and the film thickness of each layer. Regarding the heat ray reflective laminate, Examples 9 to 16 were the same as Examples 1 to 8, and Examples 26 to 30 were the same as Examples 21 to 25, respectively. The glass plates 2a and 2b and the adhesive layers 3a and 3b were the same as the glass plate 2 and the adhesive layer 3 of Example 1. The results are shown in Table 4 for Examples 9 to 16 and in Table 5 for Examples 26 to 30.
  • glass laminates whose heat ray reflective film structure is designed within the scope of the present invention are defined in the standard of JIS R3106 (1998) measured on the heat ray reflective surface.
  • the visible light reflectance is greater than 15%
  • the visible light transmittance is greater than 30% and less than 65%
  • the solar reflectance is greater than 40%, and is obtained by light incident at an incident angle of 5 degrees from a C light source.
  • the glass laminate of the present invention is a glass laminate having an excellent heat ray reflection function and a color tone of reflected light close to neutrality, and can be suitably used particularly for glass for automobiles, glass for building materials, and the like.
  • the entire contents of the specification, claims, drawings, and abstract of Japanese Patent Application No. 2011-231869 filed on October 21, 2011 are incorporated herein as the disclosure of the present invention. .
  • SYMBOLS 1A, 1B Glass laminated body, 2, 2a, 2b ... Glass plate, 3, 3a, 3b ... Adhesive layer, 4, 4A, 4B ... Heat ray reflective laminated body, 5 ... Heat ray reflective surface 41, 41A, 41B ... Heat ray reflective Membrane, 42 ... resin substrate, 43a to 43e ... inorganic layer, 44a to 44d ... metal layer

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  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Laminated Bodies (AREA)
  • Optical Filters (AREA)
  • Joining Of Glass To Other Materials (AREA)

Abstract

La présente invention concerne un stratifié de verre assurant une excellente fonction de thermoréflectivité et par lequel une teinte de couleur claire de réflexion est une teinte de couleur proche du neutre. L'invention concerne plus particulièrement un stratifié de verre doté d'une feuille de verre et d'un film thermoréfléchissant comportant une couche métallique d'argent comme constituant principal sur un côté de surface principale de la feuille de verre. Selon l'invention, lorsqu'on les mesure sur l'autre surface principale de la feuille de verre telle que défini par la norme JIS R 3106 (1998), la réflectance de la lumière visible est supérieure à 15 %, la transmittance de la lumière visible est supérieure à 30 % et inférieure à 65 % et la réflectance de la lumière solaire (Re) est supérieure à 40 %, et les coordonnées de couleur (x, y) d'une lumière réfléchie obtenue à partir d'une lumière incidente provenant d'une source de lumière (C) à un angle incident de cinq degrés, sur un schéma de couleurs XYZ dans un champ de vision à deux degrés défini par la norme JIS Z 8722 (2009), sont (0,29 ≤ x ≤ 0,320, 0,290 ≤ y ≤ 0,330).
PCT/JP2012/077156 2011-10-21 2012-10-19 Stratifié de verre WO2013058384A1 (fr)

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JP2016018288A (ja) * 2014-07-07 2016-02-01 コニカミノルタ株式会社 透明導電体及びタッチパネル
WO2019189738A1 (fr) * 2018-03-29 2019-10-03 積水化学工業株式会社 Film intermédiaire pour verre feuilleté, et verre feuilleté
US11472730B2 (en) 2015-06-02 2022-10-18 Corning Incorporated Laminated glass article with tinted layer
US11572303B2 (en) 2016-05-04 2023-02-07 Corning Incorporated Tinted aluminosilicate glass compositions and glass articles including same

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JP2018124449A (ja) * 2017-02-01 2018-08-09 Tdk株式会社 調光体用の積層体、及び調光体
CA3112544A1 (fr) 2018-09-14 2020-03-19 AGC Inc. Substrat transmettant les ondes radio
CN114630919A (zh) * 2019-11-15 2022-06-14 三菱综合材料株式会社 层叠结构体

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JP2006117482A (ja) * 2004-10-22 2006-05-11 Nippon Sheet Glass Co Ltd 熱線遮蔽ガラス及び熱線遮蔽複層ガラス
JP2009280464A (ja) * 2008-05-26 2009-12-03 Nippon Sheet Glass Co Ltd 低放射複層ガラス
JP2011195416A (ja) * 2010-03-23 2011-10-06 Asahi Glass Co Ltd 合わせガラスの製造方法

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JPS6250131A (ja) * 1985-08-29 1987-03-04 旭硝子株式会社 安全ガラス
JP2006117482A (ja) * 2004-10-22 2006-05-11 Nippon Sheet Glass Co Ltd 熱線遮蔽ガラス及び熱線遮蔽複層ガラス
JP2009280464A (ja) * 2008-05-26 2009-12-03 Nippon Sheet Glass Co Ltd 低放射複層ガラス
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Publication number Priority date Publication date Assignee Title
JP2016018288A (ja) * 2014-07-07 2016-02-01 コニカミノルタ株式会社 透明導電体及びタッチパネル
US11472730B2 (en) 2015-06-02 2022-10-18 Corning Incorporated Laminated glass article with tinted layer
US11572303B2 (en) 2016-05-04 2023-02-07 Corning Incorporated Tinted aluminosilicate glass compositions and glass articles including same
US11932575B2 (en) 2016-05-04 2024-03-19 Corning Incorporated Tinted aluminosilicate glass compositions and glass articles including same preliminary class
WO2019189738A1 (fr) * 2018-03-29 2019-10-03 積水化学工業株式会社 Film intermédiaire pour verre feuilleté, et verre feuilleté
JPWO2019189738A1 (ja) * 2018-03-29 2021-02-12 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
JP7271418B2 (ja) 2018-03-29 2023-05-11 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

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