EP4048518A1 - Transparentes substrat mit einer mehrschichtigen dünnfilmbeschichtung und mehrfachverglasungseinheit damit - Google Patents

Transparentes substrat mit einer mehrschichtigen dünnfilmbeschichtung und mehrfachverglasungseinheit damit

Info

Publication number
EP4048518A1
EP4048518A1 EP20879757.1A EP20879757A EP4048518A1 EP 4048518 A1 EP4048518 A1 EP 4048518A1 EP 20879757 A EP20879757 A EP 20879757A EP 4048518 A1 EP4048518 A1 EP 4048518A1
Authority
EP
European Patent Office
Prior art keywords
transparent substrate
thin film
protective layer
metal protective
multilayer coating
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP20879757.1A
Other languages
English (en)
French (fr)
Other versions
EP4048518A4 (de
Inventor
Kangmin KIM
Jin Woo Han
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Saint Gobain Glass France SAS
Compagnie de Saint Gobain SA
Original Assignee
Saint Gobain Glass France SAS
Compagnie de Saint Gobain SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Saint Gobain Glass France SAS, Compagnie de Saint Gobain SA filed Critical Saint Gobain Glass France SAS
Publication of EP4048518A1 publication Critical patent/EP4048518A1/de
Publication of EP4048518A4 publication Critical patent/EP4048518A4/de
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B18/00Layered products essentially comprising ceramics, e.g. refractory products
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C17/00Surface treatment of glass, not in the form of fibres or filaments, by coating
    • C03C17/34Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
    • C03C17/36Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00Layered products comprising a layer of metal
    • B32B15/04Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/043Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of metal
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06Layered 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B9/00Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/005Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising one layer of ceramic material, e.g. porcelain, ceramic tile
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B9/00Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/04Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B9/041Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material of metal
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C17/00Surface treatment of glass, not in the form of fibres or filaments, by coating
    • C03C17/34Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
    • C03C17/36Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal
    • C03C17/3602Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer
    • C03C17/3626Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer one layer at least containing a nitride, oxynitride, boronitride or carbonitride
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C17/00Surface treatment of glass, not in the form of fibres or filaments, by coating
    • C03C17/34Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
    • C03C17/36Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal
    • C03C17/3602Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer
    • C03C17/3642Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer the multilayer coating containing a metal layer
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C17/00Surface treatment of glass, not in the form of fibres or filaments, by coating
    • C03C17/34Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
    • C03C17/36Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal
    • C03C17/3602Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer
    • C03C17/3644Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer the metal being silver
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C17/00Surface treatment of glass, not in the form of fibres or filaments, by coating
    • C03C17/34Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
    • C03C17/36Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal
    • C03C17/3602Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer
    • C03C17/3647Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer in combination with other metals, silver being more than 50%
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C17/00Surface treatment of glass, not in the form of fibres or filaments, by coating
    • C03C17/34Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
    • C03C17/36Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal
    • C03C17/3602Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer
    • C03C17/3649Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer made of metals other than silver
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C17/00Surface treatment of glass, not in the form of fibres or filaments, by coating
    • C03C17/34Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
    • C03C17/36Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal
    • C03C17/3602Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer
    • C03C17/3652Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer the coating stack containing at least one sacrificial layer to protect the metal from oxidation
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C17/00Surface treatment of glass, not in the form of fibres or filaments, by coating
    • C03C17/34Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
    • C03C17/36Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal
    • C03C17/3602Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer
    • C03C17/3657Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer the multilayer coating having optical properties
    • C03C17/366Low-emissivity or solar control coatings
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C17/00Surface treatment of glass, not in the form of fibres or filaments, by coating
    • C03C17/34Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
    • C03C17/36Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal
    • C03C17/3602Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer
    • C03C17/3681Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer the multilayer coating being used in glazing, e.g. windows or windscreens
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/54Slab-like translucent elements
    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06BFIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/66Units comprising two or more parallel glass or like panes permanently secured together
    • E06B3/67Units comprising two or more parallel glass or like panes permanently secured together characterised by additional arrangements or devices for heat or sound insulation or for controlled passage of light
    • E06B3/6715Units comprising two or more parallel glass or like panes permanently secured together characterised by additional arrangements or devices for heat or sound insulation or for controlled passage of light specially adapted for increased thermal insulation or for controlled passage of light
    • E06B3/6722Units comprising two or more parallel glass or like panes permanently secured together characterised by additional arrangements or devices for heat or sound insulation or for controlled passage of light specially adapted for increased thermal insulation or for controlled passage of light with adjustable passage of light
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/20Properties of the layers or laminate having particular electrical or magnetic properties, e.g. piezoelectric
    • B32B2307/204Di-electric
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/40Properties of the layers or laminate having particular optical properties
    • B32B2307/412Transparent
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/70Other properties
    • B32B2307/732Dimensional properties
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2315/00Other materials containing non-metallic inorganic compounds not provided for in groups B32B2311/00 - B32B2313/04
    • B32B2315/02Ceramics
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2419/00Buildings or parts thereof

Definitions

  • a transparent substrate provided with a multilayer thin film coating and a multiple glazing unit including the same are disclosed. Specifically, a transparent substrate provided with a multilayer thin film coating having improved durability and optical properties by adjusting a configuration of a layer included in the multilayer thin film coating formed on the transparent substrate, and a multiple glazing unit including the same are disclosed.
  • Low-emissivity glass is glass in which a low-emission layer including a metal having high reflectance in an infrared region such as silver (Ag) is deposited as a thin film.
  • This low-emissivity glass is a functional material that reflects radiant rays in the infrared region so as to block solar radiation flowing from outdoors to indoors in summer and preserve heating room radiant heat flowing out from indoors to outdoors to bring about an energy-saving effect in buildings.
  • Emissivity in glass refers to a degree to which the glass reflects energy of infrared with a long wavelength (2500 nm to 40,000 nm).
  • emissivity the better the glass reflects, and thus the more infrared energy it reflects, and accordingly, since less heat is transferred, a heat transmission rate is decreased, and thereby a heat insulation effect is increased.
  • general glass with no coating has emissivity of about 0.84, wherein the existing of the coating will lower the emissivity.
  • glass having a low emissivity coating layer may have emissivity of 0.10. When the emissivity is low, a shield coefficient is also low.
  • a coating in low-emissivity glass is generally composed of several layers including a dielectric material layer.
  • a coating is deposited on a transparent substrate (glass substrate)
  • light reflection is reduced while transmission is increased thus the visibility of objects behind the substrate is improved.
  • This low-emissivity glass is widely applied to exterior walls of buildings and the like, but in such an environment in which it is exposed to the outside, a low-emissivity layer containing a metal with high reflectivity may be easily corroded and damaged by moisture, oxygen, etc. This damage weakens a bonding force between the glass and the coating or between the layers included in the coating, and as a result, there may be a significant problem that the glass installed on the exterior wall of a building may fall and the like. In order to solve this problem, an effort to add a layer for prevention of the corrosion of the multilayer thin film coating, increasing the thickness, or the like has been made, which may lead to another problem of deteriorating optical properties such as transmittance and the like.
  • the present invention is to solve these problems by providing a transparent substrate including a multilayer thin film coating which may improve durability and simultaneously maintain excellent properties such as transmittance, emissivity, and the like, and a multiple glazing unit including the same.
  • exemplary embodiments of the present invention are not limited thereto but may be applied in various ways within the scope of the technical idea included therein.
  • a transparent substrate with a multilayer thin film coating includes a transparent substrate and a multilayer thin film coating, and the multilayer thin film coating includes a lower anti-reflection film, a lower metal protective layer, a metal functional layer having an infrared reflecting function, an upper metal protective layer, and an upper anti-reflection film sequentially stacked from the transparent substrate, wherein each of the upper anti-reflection film and the lower anti-reflection film includes at least one dielectric layer, the upper anti-reflection film includes a silicon nitride-based dielectric layer, and the silicon nitride-based dielectric layer is stacked in direct contact with the upper metal protective layer and has a thickness of greater than or equal to 30 nm, a sum of the thickness of the lower metal protective layer and the upper metal protective layer is 0.6 nm to 2.25 nm, and a thickness of the lower metal protective layer is greater than that of the upper metal protective layer.
  • An overcoat may be further included on one surface of the upper antireflection film in a direction away from the transparent substrate, and the overcoat may include Zr-doped titanium oxide or zirconium oxide.
  • the lower metal protective layer may have a thickness of 0.5 nm to 1.3 nm.
  • the upper metal protective layer may have a thickness of 0.2 nm to 0.6 nm.
  • the metal functional layer may have a thickness of 12 nm to 18 nm.
  • Each of the upper metal protective layer and the lower metal protective layer may include at least one of titanium, nickel, chromium, and niobium, or an alloy thereof.
  • Each of the upper metal protective layer and the lower metal protective layer may include a nickel-chromium alloy.
  • the lower anti-reflection film may include a silicon nitride.
  • Each of the lower anti-reflection film and the upper anti-reflection film may further include at least one nitride, oxide, or oxynitride selected from titanium (Ti), hafnium (Hf), zirconium (Zr), and aluminum (Al).
  • the lower anti-reflection film may include a lower dielectric layer disposed on the transparent substrate and an upper dielectric layer disposed on the lower dielectric layer, and the lower dielectric layer may further include doped zirconium.
  • the lower anti-reflection film may have a thickness of 30 nm to 45 nm, and the upper anti-reflection film may have a thickness of 35 nm to 50 nm.
  • a thickness ratio of the upper anti-reflection film to the lower anti-reflection film may be greater than or equal to 1.1 and less than or equal to 1.4.
  • a thickness ratio of the lower metal protective layer to a total thickness of the lower metal protective layer and the upper metal protective layer may be greater than 0.5 and less than 1.
  • a ratio of visible light transmittance to normal emissivity may be greater than 14.
  • a time until which visible corrosion does not occur may be greater than or equal to 168 hours.
  • the visible light transmittance (TL) may be 70 % to 80 %.
  • It may be a multilayer thin film coating having coating surface reflectance of less than 10 %.
  • the coated surface may have a reflective color of 5 ⁇ a* ⁇ 10 and -20 ⁇ b* ⁇ -10.
  • Normal emissivity may be 0.03 to 0.05.
  • Sheet resistance of the multilayer thin film coating may be less than 4.0 ⁇ /square.
  • a multiple glazing unit is a multiple glazing unit including at least two transparent substrates spaced apart from each other with a spacer therebetween, wherein at least one of the at least two transparent substrates is the aforementioned transparent substrate with a multilayer thin film coating.
  • a coated article in which an enamel coating having improved adhesion and surface quality is applied may be obtained.
  • FIG. 1 is a view showing a cross-section of a transparent substrate provided with a multilayer thin film coating according to an embodiment of the present invention.
  • FIG. 2 is a view showing a cross-section of a multiple glazing unit according to an embodiment of the present invention.
  • FIG. 3 is a photograph showing the state of each of the examples and comparative examples 7 days after the start of the dipping test for a transparent substrate with a multilayer thin film coating.
  • FIG. 4 is a photograph showing the state of each of the examples and comparative examples 28 days after the start of a high-temperature and high-humidity test for a transparent substrate with a thin film multilayer coating.
  • FIG. 5 is a photograph showing the states of each of the examples and comparative examples when a certain period elapses after the start of the field test for the multiple glazing units.
  • FIG. 6 is a photograph showing the states of each of the examples and comparative examples when a certain period elapses after the start of the spray test for the multiple glazing unit.
  • first, second, and third are used to describe various parts, components, regions, layers, and/or sections, but are not limited thereto. These terms are only used to distinguish one part, component, region, layer, or section from another part, component, region, layer or section. Accordingly, a first part, component, region, layer, or section described below may be referred to as a second part, component, region, layer, or section without departing from the scope of the present invention.
  • emissivity and “transmittance” are used as commonly known in the art.
  • Error is a measure of how much light is absorbed and reflected at a given wavelength. In general, the following equation is satisfied.
  • an emissivity value of about 2500 to 50000 nm in the infrared spectrum is important.
  • transmittance means visible light transmittance
  • FIG. 1 is a view showing a cross-section of a transparent substrate 100 provided with a multilayer thin film coating according to an embodiment of the present invention.
  • the transparent substrate 100 with a multilayer thin film coating of FIG. 1 is for illustrative purposes only, and the present invention is not limited thereto. Accordingly, the transparent substrate 100 with the multilayer thin film coating of FIG. 1 may be transformed into various forms.
  • a transparent substrate 100 with a multilayer thin film coating includes a transparent substrate 110 and a multilayer thin film coating 120 formed on the transparent substrate 110.
  • the transparent substrate 110 is not particularly limited, but is desirably made of a hard inorganic material such as glass or an organic material based on a polymer.
  • the multilayer thin film coating 120 includes a lower anti-reflection film 20, a lower metal protective layer 30, a metal functional layer 40 having an infrared reflecting function, an upper metal protective layer 50, and an upper anti-reflection film 60 which are sequentially stacked from the transparent substrate 110.
  • An overcoat 70 is further included on the top of the upper anti-reflection film 60, that is, on one side in a direction away from the transparent substrate 100.
  • Each of the lower anti-reflection film 20 and the upper anti-reflection film 60 may respectively include at least one dielectric layer.
  • the dielectric layer may include a metal oxide, a metal nitride, or a metal oxynitride.
  • the metal may include at least one selected from titanium (Ti), hafnium (Hf), zirconium (Zr), zinc (Zn), indium (In), tin (Sn), and silicon (Si).
  • the lower anti-reflection film 20 and the upper anti-reflection film 60 may respectively be a single layer or a stack of two or more layers.
  • the lower anti-reflection film 20 may include a lower dielectric layer 21 disposed on the transparent substrate 110 and an upper dielectric layer 22 disposed on the lower dielectric layer 21, that is, on the side away from the transparent substrate 110.
  • the lower dielectric layer 21 and the upper dielectric layer 22 may include silicon nitride (Si 3 N 4 ).
  • the upper dielectric layer 22 may be doped with zirconium, and an atomic ratio of Zr(Si+Zr) may be in a range of 10 % to 50 %.
  • the doped zirconium may increase a refractive index of the dielectric layer and thus improve transmittance.
  • a total thickness of the lower anti-reflection film 20 consisting of the lower dielectric layer 21 and the upper dielectric layer 22 may be in the range of 30 nm to 45 nm.
  • the upper dielectric layer 22 doped with the zirconium may be preferably formed to be thicker than the lower dielectric layer 21, but is not limited thereto.
  • surface roughness of the metal functional layer 40 may be reduced, and accordingly, there may be an advantage of reducing sheet resistance and thus lowering the emissivity.
  • a thickness ratio of the upper dielectric layer 22 to the lower dielectric layer 21 may be in the range of 3:1 to 2:1, but is not particularly limited thereto.
  • the upper anti-reflection film 60 may include silicon nitride (Si 3 N 4 ).
  • the upper anti-reflection film 60 may be a single layer or a stack of two or more layers, but is not particularly limited thereto.
  • the upper anti-reflection film 60 may be formed directly on the upper metal protective layer 50 in direct contact with the upper metal protective layer 50.
  • the upper anti-reflection film 60 may have a thickness of greater than or equal to 30 nm, and specifically, 35 nm to 50 nm.
  • the upper anti-reflection film 60 may be thicker than the lower anti-reflection film 20, and for example, a thickness ratio of the upper anti-reflection film 60 to the lower anti-reflection film 20 may be in the range of 1.1:1 to 1.4:1. In this way, the thickness ratio of the upper anti-reflection film 60 to the lower anti-reflection film 20 may be controlled to adjust the reflection color of the multilayer thin film coating and to simultaneously increase transmittance.
  • the lower anti-reflection film 20 and the upper anti-reflection film 60 may be additionally doped with aluminum and the like.
  • the doped aluminum may contribute to easily forming the dielectric layer during the manufacturing process.
  • various doping agents for example, fluorine, carbon, nitrogen, boron, phosphorus, and the like in addition to the zirconium and the aluminum may be used to increase a formation speed of the dielectric layer by sputtering as well as to improve optical properties of the film.
  • the metal functional layer 40 may have an infrared (IR) reflection characteristic.
  • the metal functional layer 40 may include at least one of gold (Ag), copper (Cu), palladium (Pd), aluminum (Al), and silver (Ag).
  • the silver or a silver alloy may be included.
  • the silver alloy may include a silver-gold alloy and a silver-palladium alloy.
  • the metal functional layer 40 may be 12 nm to 18 nm thick. When the thickness is too thin, a solar heat gain coefficient (SHGC) may be increased. When the thickness is too thick, color coordinates of a transmissive color may be farther away from blue.
  • SHGC solar heat gain coefficient
  • the lower metal protective layer 30 and the upper metal protective layer 50 are respectively at the bottom and the top of the metal functional layer 40.
  • the lower metal protective layer 30 may be disposed between the lower anti-reflection film 20 and the metal functional layer 40
  • the upper metal protective layer 30 may be disposed between the upper anti-reflection film 60 and the metal functional layer 40.
  • the lower metal protective layer 30 and the upper metal protective layer 50 may prevent oxidization and corrosion of the metal functional layer 70.
  • the lower metal protective layer 30 and the upper metal protective layer 50 may be formed to be thicker, however it may deteriorate transmittance of the transparent substrate 100 with the multilayer thin film coating and increase emissivity thereof. Therefore, in an embodiment of the present invention, the lower metal protective layer 30 and the upper metal protective layer 50 may have a total thickness of 0.6 nm to 2.25 nm.
  • the metal functional layer 70 may hardly be prevented from corroding, and when the total thickness of the lower metal protective layer 30 and the upper metal protective layer 50 is greater than 2.25 nm, transmittance is decreased, and emissivity is increased, which may deteriorate properties of the transparent substrate.
  • the lower metal protective layer 30 may be thicker than the upper metal protective layer 50.
  • durability particularly chemical durability, may be much increased.
  • the multilayer thin film coating 120 is on the formed transparent substrate 100, stress may be applied to the upper anti-reflection film 60 on top, and resultantly, the multilayer thin film coating 120 may be mainly peeled off at the bottom of the stacking structure, that is, at the near side to the transparent substrate 110.
  • the corrosion and peeling at the near side of the transparent substrate 110 may be effectively prevented, and accordingly, excellent durability may be obtained, compared with when the lower metal protective layer 30 having the same total thickness as the upper metal protective layer 50.
  • low-E performance of the multilayer thin film coating 120 that is, low emissivity and high transmittance, may be accomplished, and simultaneously, durability of the multilayer thin film coating 120 may be improved by suppressing corrosion and peeling thereof.
  • the thickness of the lower metal protective layer 30 may be 0.5 nm to 1.3 nm, and the thickness of the upper metal protective layer 50 may be 0.2 nm to 0.6 nm.
  • a ratio of the thickness of the lower metal protective layer 30 to the total thickness of the lower metal protective layer 30 and the upper metal protective layer 50 may be greater than 0.5 and smaller than 1. Preferably, the ratio may be greater than 0.6 and smaller than 0.8.
  • the lower metal protective layer 30 and the upper metal protective layer 50 may respectively include at least one selected from titanium, nickel, chromium, and niobium. Specifically, a nickel-chromium alloy may be included.
  • the multilayer thin film coating 120 may further include the overcoat 70 at the outermost.
  • the overcoat 70 may be included on the upper metal protective layer 50, that is, on one side away from the transparent substrate 110.
  • the overcoat 70 may include at least one selected from zirconium-doped titanium oxide (TiZrO), zirconium-doped titanium nitride (TiZrN), zirconium-doped titanium oxynitride (TiZrON), zirconium oxide (ZrO), zirconium nitride (ZrN), and zirconium oxynitride (ZrON).
  • the overcoat 70 may include TiZrO. When this overcoat 70 is included, layers included in the multilayer thin film coating 120 may be prevented from damage.
  • the overcoat 70 may have a thickness of 2 nm to 5 nm.
  • the transparent substrate 100 with the multilayer thin film coating 120 has excellent characteristics in terms of emissivity, transmittance, durability, reflectance, and color.
  • visible light transmittance may be in the range of 70 % to 80 %, and coating surface reflectance may be less than 10 %.
  • Normal emissivity may be in the range of 0.03 to 0.05.
  • the coated surface may have a reflective color of 5 ⁇ a* ⁇ 10 and -20 ⁇ b* ⁇ -10.
  • Corrected emissivity may be 0.036 to 0.059.
  • a ratio of visible light transmittance to normal emissivity may be greater than 14, and when this transparent substrate 100 is dipped in an aqueous solution of 0.1 N of H 2 SO 4 + 10 wt% of NaCl at room temperature, the transparent substrate may have no visible corrosion found with the naked eye for greater than or equal to 168 hours.
  • FIG. 2 is a view showing a cross-section of a multiple glazing unit 200 according to an embodiment of the present invention.
  • the multiple glazing unit 200 of FIG. 2 is for illustrative purposes only, and the present invention is not limited thereto. Accordingly, the multiple glazing unit 200 of FIG. 2 may be modified in various forms.
  • a multiple glazing unit 200 includes at least two transparent substrates 110 and 140, and at least one of the two or more transparent substrates may be the transparent substrate 100 with the aforementioned multilayer thin film coating 120.
  • the multiple glazing unit 200 includes two or more transparent substrates held by a spacer 150, and at least one gas separation interface 130 disposed between two substrates.
  • the transparent substrate 140 is shown to have no separate thin film in addition to the transparent substrate 100 with the multilayer thin film coating 120, but the same multilayer thin film coating 120 may be formed on, under, or on both thereof, or a different thin film therefrom may be formed.
  • the multiple glazing unit 200 may exhibit improved durability, as described above, since the multilayer thin film coating 120 is configured to form the metal protective layer on both surfaces of a metal functional layer, wherein the metal protective layer disposed on the side of the transparent substrate 110, that is, on the lower metal protective layer, is formed to be thicker than the upper metal protective layer formed at the opposite side thereof and thus may efficiently prevent corrosion and peeling of the multilayer thin film coating 120, even though the end of the multilayer thin film coating 120 is exposed to the open air.
  • a lower anti-reflection film/a lower metal protective layer/a metal functional layer/an upper metal protective layer/an upper anti-reflection film in order were stacked on a transparent substrate to form a transparent substrate with a multilayer thin film coating.
  • the transparent substrate was a 5 mm-thick glass substrate (Tradename: HanLite Clear, Hanglas Co., Ltd.).
  • a Si 3 N 4 layer was formed to be 35 nm thick, and as for the lower metal protective layer, a NiCr layer was formed to have a different thickness, as shown Table 1.
  • a Ag layer was formed to be 13 nm thick, and as for the upper metal protective layer, a NiCr layer was formed to have a different thickness, as shown in Table 1.
  • a Si 3 N 4 layer was formed to be 40 nm thick.
  • the transparent substrates with the multilayer thin film coating which had the stacking structure shown in Table 1 according to examples and comparative examples, were measured with respect to visible light transmittance and corrected emissivity.
  • durability thereof was tested by dipping each transparent substrate in an aqueous solution of 0.1 N of H 2 SO 4 + 10 wt% of NaCl at room temperature, and then measuring time when each transparent substrate exhibited visible corrosion with the naked eye (dipping test).
  • time when the transparent substrate was corroded was also measured (high temperature and high humidity test). The results are shown in Table 2 and FIGS. 3 and 4.
  • FIG. 3 is a photograph showing the state of each sample 7 days after the start of the dipping test
  • FIG. 4 is a photograph showing the state of each sample 28 days after the start of the high-temperature and high-humidity test.
  • Each double glazing unit referred to as Comparative Examples 3 and 4 and Examples 3 and 4 were tested.
  • the double glazing units were allowed to stand in the open air and measured with respect to time when corrosion occurred (a field test).
  • 7.5 wt% of a NaCl aqueous solution was continuously sprayed -on the double glazing unit at 60 °C to measure time when corrosion occurred (a spray test), and the double glazing unit was dipped in a 5 wt% NaCl aqueous solution at 50 °C to measure time when corrosion occurred (a dipping test).
  • the results are shown in Table 3 and FIGS. 5 and 6.
  • Comparative Example 3 Comparative Example 1(Sample 1) Comparative Example 4 (Sample 2) Example 3(Sample 3) Example 4(Sample 4) Transparent substrate with a multilayer thin film coating Comparative Example 1 Comparative Example 2 Example 1 Example 2 Field test 2 months - 2 yearsor more 2 yearsor more Spray test 3 days 69 days 125 daysor more 125 daysor more Dipping test 3 days 80 days 125 daysor more 125 daysor more
  • FIG. 5 is a photograph showing the state of each sample after a certain period of time after the start of the field test
  • FIG. 6 is a photograph showing the state of each sample after a certain period of time after the start of the spray test.
  • Samples 1 and 2 individually exhibited corrosion in 10 days and 70 days for the spray test, but Samples 3 and 4 exhibited no corrosion even in 2 years.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Organic Chemistry (AREA)
  • Ceramic Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Laminated Bodies (AREA)
  • Surface Treatment Of Glass (AREA)
EP20879757.1A 2019-10-25 2020-10-19 Transparentes substrat mit einer mehrschichtigen dünnfilmbeschichtung und mehrfachverglasungseinheit damit Pending EP4048518A4 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020190133887A KR20210050042A (ko) 2019-10-25 2019-10-25 박막 다층 코팅이 구비된 투명 기재 및 이를 포함하는 다중 글레이징 유닛
PCT/KR2020/014230 WO2021080266A1 (en) 2019-10-25 2020-10-19 TRANSPARENT SUBSTRATE WITH A MULTILAYER THIN FILM coating AND A MULTIPLE GLAZING UNIT COMPRISING THE SAME

Publications (2)

Publication Number Publication Date
EP4048518A1 true EP4048518A1 (de) 2022-08-31
EP4048518A4 EP4048518A4 (de) 2023-11-01

Family

ID=75619474

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20879757.1A Pending EP4048518A4 (de) 2019-10-25 2020-10-19 Transparentes substrat mit einer mehrschichtigen dünnfilmbeschichtung und mehrfachverglasungseinheit damit

Country Status (5)

Country Link
EP (1) EP4048518A4 (de)
KR (1) KR20210050042A (de)
BR (1) BR112022001749A2 (de)
MX (1) MX2022004929A (de)
WO (1) WO2021080266A1 (de)

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2856678B1 (fr) * 2003-06-26 2005-08-26 Saint Gobain Vitrage muni d'un empilement de couches minces reflechissant les infrarouges et/ou le rayonnement solaire
WO2006124503A2 (en) * 2005-05-12 2006-11-23 Agc Flat Glass North America, Inc. Low emissivity coating with low solar heat gain coefficient, enhanced chemical and mechanical properties and method of making the same
US20100209730A1 (en) * 2009-02-19 2010-08-19 Guardian Industries Corp., Coated article with sputter-deposited transparent conductive coating for refrigeration/freezer units, and method of making the same
FR2942794B1 (fr) * 2009-03-09 2011-02-18 Saint Gobain Substrat muni d'un empilement a proprietes thermiques comportant des couches a haut indice de refraction
CN103391905A (zh) * 2011-01-11 2013-11-13 旭硝子欧洲玻璃公司 太阳能控制窗玻璃
US8506001B2 (en) * 2011-07-15 2013-08-13 Centre Luxembourgeois De Recherches Pour Le Verre Et La Ceramique S.A. (C.R.V.C.) Coated article including low-E coating with improved durability and/or methods of making same
KR101381531B1 (ko) * 2011-08-18 2014-04-07 (주)엘지하우시스 열처리가 가능한 저방사 유리 및 이의 제조방법
ES2873178T3 (es) * 2013-08-16 2021-11-03 Guardian Industries Artículo recubierto con recubrimiento de baja E que tiene baja transmisión visible
FR3030494B1 (fr) * 2014-12-19 2021-09-03 Saint Gobain Vitrage de controle solaire ou bas emissif comprenant une couche de protection superieure
FR3030491B1 (fr) * 2014-12-23 2016-12-30 Saint Gobain Vitrage comprenant un revetement protecteur
RU2725386C1 (ru) * 2016-10-18 2020-07-02 Гардиан Гласс Холдинг С.П.С. Изделие серебристого цвета с нанесенным низкоэмиссионным покрытием, которое имеет поглощающий слой и низкое пропускание видимого света

Also Published As

Publication number Publication date
WO2021080266A1 (en) 2021-04-29
BR112022001749A2 (pt) 2022-05-17
MX2022004929A (es) 2022-05-16
KR20210050042A (ko) 2021-05-07
EP4048518A4 (de) 2023-11-01

Similar Documents

Publication Publication Date Title
WO2015088267A1 (ko) 저방사 코팅막, 이의 제조방법 및 이를 포함하는 창호용 기능성 건축 자재
WO2018048034A1 (ko) 창호용 기능성 건축 자재
WO2013024996A2 (ko) 열처리가 가능한 저방사 유리 및 이의 제조방법
CN111559875B (zh) 一种镀膜玻璃及其制备方法
WO2013191345A1 (ko) 저방사 투명 적층체 및 이를 포함하는 건축 자재
WO2015030549A1 (ko) 저방사 코팅 및 이를 포함하는 창호용 건축 자재
WO2015088269A1 (ko) 저방사 코팅막, 이의 제조방법 및 이를 포함하는 창호용 기능성 건축 자재
JP2015532256A (ja) 低い可視光線透過率を有する低放射率被覆製品
WO2018147666A1 (ko) 저반사 코팅 유리
WO2019112320A1 (ko) 창호용 기능성 건축 자재
WO2016017999A1 (ko) 저방사 코팅, 및 저방사 코팅을 포함하는 창호용 기능성 건축 자재
CN102898040A (zh) 一种三银低辐射镀膜玻璃及其制备方法
US20180244569A1 (en) Coated article with low-e coating having doped silver ir reflecting layer(s)
WO2017126875A1 (ko) 저방사 유리 및 그의 제조방법
WO2020218880A1 (en) Coated article and method for manufacturing the same
WO2014104530A1 (ko) 저방사 투명 적층체 및 이를 포함하는 건축 자재
WO2019216661A1 (en) Transparent substrate provided with multi-layered coating and insulation glazing unit including the same
WO2018012883A1 (ko) 저방사 유리
WO2019050193A1 (ko) 창호용 기능성 건축 자재
WO2021080266A1 (en) TRANSPARENT SUBSTRATE WITH A MULTILAYER THIN FILM coating AND A MULTIPLE GLAZING UNIT COMPRISING THE SAME
WO2020141717A1 (en) Transparent substrate with a multilayer thin film and multiple glazing unit comprising the same
WO2012128439A1 (en) Transparent substrate for a solar cell having a broadband anti-reflective multilayered coating thereon and method for preparing the same
WO2017122991A1 (ko) 저방사 유리
WO2017047983A1 (ko) 창호용 기능성 건축 자재
WO2019022383A2 (ko) 저방사 유리

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20220525

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
A4 Supplementary search report drawn up and despatched

Effective date: 20231004

RIC1 Information provided on ipc code assigned before grant

Ipc: C03C 17/36 20060101ALI20230927BHEP

Ipc: E04C 2/54 20060101ALI20230927BHEP

Ipc: E06B 3/67 20060101ALI20230927BHEP

Ipc: B32B 15/04 20060101ALI20230927BHEP

Ipc: B32B 9/04 20060101ALI20230927BHEP

Ipc: B32B 9/00 20060101ALI20230927BHEP

Ipc: B32B 17/06 20060101AFI20230927BHEP