EP3743275A1 - Method for treating and assembling glazing comprising a low emissivity layer - Google Patents

Method for treating and assembling glazing comprising a low emissivity layer

Info

Publication number
EP3743275A1
EP3743275A1 EP19700846.9A EP19700846A EP3743275A1 EP 3743275 A1 EP3743275 A1 EP 3743275A1 EP 19700846 A EP19700846 A EP 19700846A EP 3743275 A1 EP3743275 A1 EP 3743275A1
Authority
EP
European Patent Office
Prior art keywords
layer
glass
glazing
laminated
glass panels
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.)
Withdrawn
Application number
EP19700846.9A
Other languages
German (de)
French (fr)
Inventor
Pascal SOULIÉ
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.)
Noemille Participations
Original Assignee
Noemille Participations
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 Noemille Participations filed Critical Noemille Participations
Publication of EP3743275A1 publication Critical patent/EP3743275A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • B32B17/10009—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
    • B32B17/10082—Properties of the bulk of a glass sheet
    • B32B17/10091—Properties of the bulk of a glass sheet thermally hardened
    • 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
    • B32B17/10128—Treatment of at least one glass sheet
    • B32B17/10155—Edge treatment or chamfering
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/10165—Functional features of the laminated safety glass or glazing
    • B32B17/10174—Coatings of a metallic or dielectric material on a constituent layer of glass or polymer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/10165—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
    • B32B17/10165—Functional features of the laminated safety glass or glazing
    • B32B17/10293—Edge features, e.g. inserts or holes
    • B32B17/10302—Edge sealing
    • 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
    • B32B17/10431—Specific parts for the modulation of light incorporated into the laminated safety glass or glazing
    • B32B17/10467—Variable transmission
    • B32B17/10477—Variable transmission thermochromic
    • 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
    • B32B17/10431—Specific parts for the modulation of light incorporated into the laminated safety glass or glazing
    • B32B17/10467—Variable transmission
    • B32B17/10495—Variable transmission optoelectronic, i.e. optical valve
    • B32B17/10513—Electrochromic layer
    • 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
    • B32B17/10807—Making laminated safety glass or glazing; Apparatus therefor
    • 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
    • B32B17/10807—Making laminated safety glass or glazing; Apparatus therefor
    • B32B17/10981—Pre-treatment of the 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
    • B32B17/10807—Making laminated safety glass or glazing; Apparatus therefor
    • B32B17/1099—After-treatment of the layered product, e.g. cooling
    • 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
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/02—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by a sequence of laminating steps, e.g. by adding new layers at consecutive laminating stations
    • 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
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/0004—Cutting, tearing or severing, e.g. bursting; Cutter details
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL 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
    • C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL 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
    • C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
    • C03C17/001—General methods for coating; Devices therefor
    • C03C17/002—General methods for coating; Devices therefor for flat glass, e.g. float glass
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL 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
    • C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
    • C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL 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
    • C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
    • C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
    • C03C17/36—Surface 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
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL 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
    • C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
    • C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
    • C03C17/36—Surface 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
    • C03C17/3602—Surface 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
    • C03C17/3657—Surface 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
    • C03C17/366—Low-emissivity or solar control coatings
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL 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
    • C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
    • C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
    • C03C17/36—Surface 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
    • C03C17/3602—Surface 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
    • C03C17/3681—Surface 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
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00—Window 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
    • E06B3/66—Units comprising two or more parallel glass or like panes permanently secured together
    • E06B3/67—Units 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
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00—Window 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
    • E06B3/66—Units comprising two or more parallel glass or like panes permanently secured together
    • E06B3/67—Units 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
    • E06B3/6715—Units 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
    • 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
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
    • B32B37/24—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer not being coherent before laminating, e.g. made up from granular material sprinkled onto a substrate
    • B32B2037/243—Coating
    • 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
    • B32B2315/00—Other materials containing non-metallic inorganic compounds not provided for in groups B32B2311/00 - B32B2313/04
    • B32B2315/08—Glass
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2457/00—Electrical equipment
    • B32B2457/12—Photovoltaic modules

Definitions

  • the present invention relates to the field of mineral or organic glass for architecture or for motor vehicles or maritime.
  • the invention relates more particularly to methods of treatment and assembly of thermal insulation glazing and sun protection.
  • buildings including tertiary and motor vehicles or maritime are equipped with glazing coated with a low emissivity layer.
  • a low emissivity layer preferentially reflects infrared but is transparent to visible light.
  • the low-emissivity layers also called low emissivity, low emissivity or "low-e" are metal layers or metal oxides, deposited on clear glasses type "float", extra-clear glasses type "low-iron” Or glasses tinted in the mass, by methods of the pyrolytic type or obtained by spraying.
  • a pyrolytic type deposit is considered a hard or a hard layer whereas a vacuum spray deposit is considered a soft or soft layer.
  • a soft layer has a greater performance in terms of thermal insulation than a hard layer, but is more delicate.
  • a soft layer is generally used on the internal face of a multiple glazing unit. More specifically, these soft layers are obtained by cathodic sputtering (PVD), possibly assisted by magnetic field, commonly performed by a device called "magnetron".
  • PVD cathodic sputtering
  • the low emissivity layers may be based on silver, aluminum, copper, gold, palladium, platinum or their mixture or alloy, more commonly silver.
  • This soft layer is commonly deposited under a layer of so-called protective dielectric material, sacrificial or blocking, or between two dielectric layers, which have the role of fixing oxygen in particular during a heat treatment to limit or even prevent the oxidation of the soft layer. It is also commonly used a superposition of several assemblies of dielectric layer and low emissivity layer.
  • the dielectric layers also have the function of limiting the reflection of the visible wavelengths, and of maintaining a neutrality of color in reflection. Examples of soft layers are described in EP 0 233 003, EP 0611 213 and EP 1 375 445.
  • dielectric coatings are well known in the field of layered glass panels, deposited by sputtering, which are generally oxides, metal oxynitrides or nitrides, such as oxides of aluminum, chromium, tin, gallium, magnesium, niobium, silicon, titanium, yttrium, zinc and zirconium. More commonly, doped zinc oxide, for example with oxides of aluminum, gallium or tin, is combined with silver-based low-emissivity layers.
  • a clear glass float type is to float the molten glass on a bath of liquid tin.
  • the molten glass at a temperature of around 1000 ° C, is poured continuously from an oven to spread over a shallow bath made of molten tin.
  • the glass floats on the tin, spreads out and forms a perfectly flat surface.
  • An extra-clear "low-iron” type glass is a "float” type glass that includes a low iron oxide content, while a bulk tinted glass is a "float” type glass comprising high levels. of metal oxides.
  • a low emissivity layer is generally deposited on the tin face of a glass sheet.
  • a laminated glazing unit is an assembly of two or more sheets of mineral or organic glass assembled together by one or more plastic interlayer films, preferably thermoplastic, while a double or triple glazing is an assembly of two or three sheets of glass or laminated glazings assembled together, united on their periphery by one or metal interlayer (s) or thermoplastic interlayer (s) commonly known as "hot interlayer glazing” and separated by a air space or gas.
  • plastic interlayer films preferably thermoplastic
  • a double or triple glazing is an assembly of two or three sheets of glass or laminated glazings assembled together, united on their periphery by one or metal interlayer (s) or thermoplastic interlayer (s) commonly known as "hot interlayer glazing" and separated by a air space or gas.
  • a layered glass sheet must undergo a number of preparation steps consisting of cutting processes, shaping and heat treatment, interspersed with steps of cleaning and quality control of the soft layer. Each of these steps represents a significant risk of damaging the soft layer, resulting in a significant number of panels removed by the control steps.
  • the shaping of the edges of a glass panel consists essentially of the removal and polishing of the cutting edges and the grinding and polishing of the edges of the cutting edge, while the Cleaning operations consist of the reuse of demineralised water and so-called soft brushes. These last steps also present a risk of deterioration of the soft layer.
  • the glass sheets undergo a reinforcing heat treatment, at temperatures generally between 450 and 650 ° C, followed by quenching, the manipulation of a glass panel.
  • layered glass during these treatments is also a critical operation for maintaining the quality of the low emissivity layer.
  • HST Heat Soak Test
  • nickel sulfide particles may sporadically penetrate the mass of a glass sheet.
  • the nickel sulfide particles shrink in size and can not recover to their original size during rapid cooling of the quench.
  • a glass panel mounted on a facade of a building is thermally stressed by the sun's rays.
  • a glazing comprising an inclusion of nickel sulphide, the latter tends to increase in volume and return to its original volume, which causes an increase in internal tensions of the glass. If such a particle is in the zone of expansion voltages of the glazing, there is a probability that the level of the admissible voltages is exceeded and a spontaneous bursting of the glazing takes place.
  • This HST thermal test meets national standards and consists of heating the glass sheet to a temperature between 280 and 300 ° C for a time determined according to standards, between 2 and 4 hours. This rise in temperature causes an unveiling of the sheet, revealing the inclusion of nickel sulphide by the bursting of the glazing. In order to meet the standard, this thermal test must be performed, once the glass sheet is cut and shaped.
  • a soft layer is generally placed inside a multiple glazing, it is also possible to position it on the outer face of a glazing, but of course requires a protective layer under an outer film.
  • Such glazing structures are for example described in the documents WO 2013/089185, EP 2685294, FR 2414114 and FR 3 030496.
  • a defect of the low-emissivity layer causes a phenomenon of iridescence of the glazing, which is revealed by an impression of color change according to the angle of view or illumination.
  • the interlayer film of a laminated glass may have thermochromic, electrochromic or photovoltaic properties. These glazings are commonly called functional or dynamic glazing.
  • a thermochromic interlayer film is composed of materials whose optical properties change as a function of temperature, in a reversible manner, for example a polymer film doped with complexes of transition metals such as vanadium oxide. The metals in these complexes change coordination, altering the transmission and color of the polymer film under the effect of temperature.
  • An electrochromic interlayer film has the particularity of changing optical properties under the effect of the application of an electric field. These changes in optical properties can be persistent but reversible or non-persistent, corresponding to stained glass windows called “darkening” and “shutters” respectively, as indicated in the document "layered glasses, Serge Etienne, Laboratory of Physics of Materials, UMR CNRS 7756, Nancy Pole Verrier / Cerfav, February 09 ".
  • a film of a glazing having non-remanent optical properties consists of a polymer matrix containing droplets of liquid crystals, while a film having persistent optical properties comprises, for example, tungsten oxide.
  • interlayer films are placed in contact with conductive faces by a deposition of ITO (based on tin oxide and indium), glass panels of a laminated glazing. Glazing having a change in non-remanent optical properties is translucent when no electrical voltage is present. applied, while they are transparent when an AC voltage is applied.
  • ITO based on tin oxide and indium
  • Glazing with a reversible but reversible optical property change has a change in optical absorption, from a light state to a dark state and vice versa, by the application of a direct current having an opposite direction.
  • a glazing must be able to deform freely.
  • the effect of climatic loads leads to changes in the glazing geometry. They deform like a boat sail inflates.
  • VE A technique external glass attached
  • the glazing of a facade of a building integrally or partially made of glass panels are interconnected by fasteners generally articulated, such as by ball joints, so that the windows are free to deform under the effect of climatic loads.
  • the present invention provides a method of treating and assembling glazing comprising a low-emissivity soft layer, to overcome the aforementioned drawbacks.
  • the process for the treatment and assembly of laminated glazing and / or laminated multiple glazing comprises the steps of taking care of at least a first sheet of glass and a second glass sheet, cutting and shaping the first and second glass sheet to obtain glass panels, depositing a low emissivity layer by vacuum spraying on one of the faces of one of the glass panels, and for assembling the glass panels in laminated glazing, while the layer being positioned between the two glass panels by means of at least one polymeric interlayer film or outside the laminated glass on the face II, said layer being intended to be positioned opposite either an outer polymeric film, or against a counterface or a laminated against glazing through seals and sealing barriers.
  • the glass panels after the cutting and shaping steps, and prior to the deposition of the low-emissivity layer, the glass panels undergo a mechanical heat treatment step followed by quenching.
  • the method comprises steps of drilling the glass panels prior to the deposition step of the low emissivity layer.
  • the method comprises a single step of washing the low-emissivity layer prior to assembling one of the glass panels, an outer polymeric film, a counterface or a against laminated glazing.
  • the method comprises a step of making savings at the outer periphery of the face intended to receive the deposition of the low-emissivity layer.
  • the laminated glazing assembly step of the glass panels by means of at least one polymeric interlayer film is performed prior to the deposition step of the low emissivity layer.
  • at least one of the polymeric interlayer films is a functional film of the thermochromic, electrochromic or photovoltaic type, preferably thermochromic.
  • the low-emissivity layer is directly deposited on the surface of a glass panel, namely that the layer does not comprise dielectric materials.
  • Figures 1 to 3 are sectional views illustrating the processing steps and assembly of sheets, panels or glazings, according to the invention.
  • FIG. 1 is a view illustrating the cutting and shaping of clear glass sheet of ffoat type
  • Figure 2 is a view illustrating the assembly of clear glass panels in laminated glazing.
  • Figure 3 is a view illustrating the deposition of a low emissivity layer on a laminated glazing.
  • Figure 4 is a view of a laminated multiple glazing.
  • Figure 5 is a view of an internal layer laminated glazing unit.
  • Figure 6 is a view of a single laminated glazing with an outer layer.
  • the processes according to the invention concern the treatment and assembly of laminated glazing, double or triple laminated glazing, preferentially double or triple functional laminated glazing, in which at least one glass panel (PI, P2) undergoes a step of depositing a layer (C) low emissivity deposited by vacuum spraying.
  • the processes according to the invention relate to at least one step of depositing a low-emissivity layer (C) on at least one pre-cut, formed, preferably heat-treated glass panel (PI, P2). mechanical reinforcement and an HST thermal test, in view of an assembly in a laminated glazing unit and / or in a double or triple laminated glazing unit, preferably in a functional double or triple laminated glazing unit.
  • C low-emissivity layer
  • PI heat-treated glass panel
  • thermochromic multiple glazing electrochromic or photovoltaic, preferably thermochromic.
  • a low-emissivity layer (C) is considered as a soft layer, as previously specified.
  • a glass sheet type "float" or a glass panel is considered as clear, when its surfaces are devoid of layer including low emissivity layer.
  • a glass panel is mineral or organic, preferably mineral.
  • References VI, Via and Vlb correspond to a layerless laminated glazing unit, an external layer laminated glazing unit and an internal layer laminated glazing unit respectively.
  • VI, Via, Vlb a laminated glazing according to the invention is achieved by the assembly of glass panels (PI, P2) which are obtained by the prior preparation of clear glass sheets (F1, F2) of type "float".
  • These preparation steps include the handling of glass sheets (F1, F2) which are cut to the desired glazing size, shaped by the removal and polishing of the cutting edges and the grinding and polishing of the edges of the wafer. cutting, advantageously followed by a heat treatment mechanical reinforcement at a temperature between 450 and 650 ° C, followed by quenching.
  • These preparation steps are interposed by cleaning steps commonly used in the field concerned, by the use of demineralised water and so-called flexible brushes.
  • the preparatory steps of the method according to the invention make it possible in particular not to subject a panel (PI, P2) layer to a heat treatment mechanical reinforcement.
  • the clear glass panels (PI, P2) undergo preparatory piercing steps in view of the formation of orifices for receiving fasteners.
  • the glass panels comprising inclusions of nickel sulphide are removed by the HST thermal test, prior to the deposition step of the low-emissivity layer (C), as explained hereinafter.
  • a clear panel does not include a layer, while a layered panel comprises a soft layer, as explained above.
  • a layered laminated glazing unit comprises a first glass panel (PI) intended to be directed towards the outside of a building or a passenger compartment of a motor vehicle or maritime vehicle, assembled at a second glass panel (P2) via at least one polymeric interlayer film, at least one of the faces of the glass panels (PI, P2) comprises a deposition of a soft layer.
  • the method comprises a step of depositing a low-emissivity layer (C) on the face II of the panel (PI) intended to be directed outwards.
  • the step of assembling an internal layer laminated glazing unit (Vlb) comprises the press positioning of the face II of the panel (PI) in contact with at least one polymeric interlayer film ( 3, 4), which is itself positioned in contact with the face III of the second panel (P2) clear to be directed inwards.
  • the method comprises a step of depositing a low-emissivity layer (C) on the face IV of the second panel (P2).
  • the step of assembling an external layer laminated glazing comprises the press positioning of the first clear glass panel (PI) in contact with a polymeric interlayer film (3, 4) which is itself in contact with the face III of the second panel (F2) whose face IV is intended to be directed towards the interior of a building or a passenger compartment of a motor vehicle or maritime.
  • the laminated glazing (Via) with an outer layer presented in the preceding embodiment is a semi-finished product, intended to be assembled with a counter-face or a laminated counter-glazing (V2, Via, Vlb) in view of the assembly of a multiple glazing unit (VM).
  • the method comprises a step of assembling an outer polymeric film (6) assembled to the face IV covered with a soft layer of the laminated glazing (Via) with an outer layer described in the preceding embodiment, in alternative to the installation of a counter-face or laminated counter-glazing (V2, Via, Vlb).
  • the laminated glazing (Via) is intended to be a single layer laminated glazing.
  • a first clear panel (PI) is assembled to a second clear panel (P2) in laminated glazing (VI) without a layer, via at least one interlayer film (3, 4), while a low emissivity layer (C) is deposited on the face II of the previously obtained laminated glazing unit (VI).
  • the method for obtaining a laminated glazing unit (VI) without a layer, from clear panel (PI, P2), further limits the handling and exposure to air of the layer (C) soft.
  • This last characteristic makes it possible to produce a clear zone devoid of a soft layer (C) intended for the sealing application of a multiple glazing unit (VM).
  • This step of making a saving (7) makes it possible to produce a clear peripheral zone of quality at the edge of the second layered panel (P2) or of the external layer laminated glazing (Via), for the assembly of a glazing unit multiple (VM) quality, in opposition to a glazing on which the sealing area is achieved by grinding, more specifically carried out using a torch and a grinding operation.
  • a single washing step of the layer (C) is carried out prior to assembling a counterface or a second laminated glazing unit (V2, Via, Vlb).
  • the method according to the invention allows the production of laminated glazing (Via, Vlb) layer, constituting a quality semi-finished product, reducing the rate of rebus inherent in the recurrent handling of layered panels or layered laminated glazing .
  • the method of the present invention not only allows a time of exposure to oxidation of the reduced low-emissivity soft layer controlled, to limit the handling and the steps washing of the layered glass panels reducing the risk of damaging the soft layer, but also not to be limited to soft layers called "hardenable", namely composed of a stack of dielectric materials and low emissivity materials.
  • the soft layer does not comprise dielectric materials, namely consists of low emissivity materials.
  • At least one of the polymeric interlayer films of a laminated laminated glazing unit is a functional film (4), namely of the thermochromic, electrochromic or photovoltaic type, preferably thermochromic type.
  • thermochromic functional glazing is an independent dynamic glazing, which does not require conductive layer deposition and power supply.
  • the method according to the invention makes it possible to obtain a low-emissivity layer (C) of high quality, on a laminated glazing unit (Via, Vlb) which is a product with a high added value. , semi-finished or a finished product in the case of a deposit of an outer polymeric film (6) on the layer (C) soft.
  • Via, Vlb functional laminated glass panes with a high added value layer, allow to obtain a high quality functional multiple glazing (VM), significantly reducing the risk of damaging the soft layer (C).
  • the method according to the invention also makes it possible to obtain a finished product in which the risk of subsequently finding scratches on the low-emissivity layer (C) is extremely reduced.
  • the process comprises, after the deposition of a low-emissivity layer (C) on the first glass panel (PI), the positioning of at least one polymeric interlayer film (3), followed by positioning a functional film (4), possibly posteriorly and prior to the deposition of conductive layers, and placing the second glass panel (P2), the assembly being placed in a press for assembly, in view of the production of a single functional laminated glazing unit (Vlb) comprising an internal soft layer (C).
  • the deposition of conductive layers is carried out either on either side of the functional film (4) electrochromic type, for example on one side of the functional film (4) and on the inner face of the second glass panel (P2).
  • the method comprises the production of a functional laminated double glazing, comprising the steps of pressing the first panel (PI), a polymeric interlayer film (3) and / or a functional film (4), preferably thermochromic, and the second panel (P2), the assembly being placed in a press for assembly.
  • the method comprises a step of depositing a low-emissivity layer (C) on the face II of the laminated glazing unit (VI) without a previously assembled layer, preferably after the realization of a savings ( 7).
  • the method further comprises the conventional steps of sealing bonding (5) and the production of sealing barriers.
  • a counter-face is a single glazing unit, a laminated glazing unit (Via) with an outer layer, a laminated glazing unit (Vlb) with an internal layer or a conventional laminated glazing unit (V2), without departing from the scope of the invention.

Abstract

A method for treating and assembling laminated glazing (V1a) and/or multiple laminated glazing (VM) from float type glass sheets, comprising the steps of handling at least one first glass sheet and one second glass sheet, cutting and shaping the first and the second glass sheet in order to obtain glass panels (P1, P2), depositing a low emissivity layer (C) by vacuum spraying onto one of the faces of one of the glass panels (P1, P2), and assembling the glass panels (P1, P2) as laminated glazing (Via), said layer (C) being positioned between the two glass panels (P1, P2) by means of at least one interlayer polymeric film (3, 4) or on the outside of the laminated glazing (V1) on face II, said layer (C) being intended to be positioned facing either an outer polymeric film or a counter-face or a counter laminated glazing (V2, Via) by means of seals (5) and sealed barriers.

Description

PROCÉDÉ DE TRAITEMENT ET D'ASSEMBLAGE DE VITRAGE COMPRENANT UNE COUCHE À FAIBLE ÉMISSIVITÉ  GLASS TREATMENT AND ASSEMBLY METHOD COMPRISING A LOW EMISSIVITY LAYER
La présente invention concerne le domaine des vitrages minéraux ou organiques pour l'architecture ou pour les véhicules automobiles ou maritimes. L'invention concerne plus particulièrement des procédés de traitement et d'assemblage de vitrage d'isolation thermique et de protection solaire. The present invention relates to the field of mineral or organic glass for architecture or for motor vehicles or maritime. The invention relates more particularly to methods of treatment and assembly of thermal insulation glazing and sun protection.
Pour réduire réchauffement en été et la déperdition de chaleur en hiver, les bâtiments notamment d'activité tertiaire et les véhicules automobiles ou maritimes sont équipés de vitrages revêtus d'une couche à faible émissivité. To reduce warming in summer and heat loss in winter, buildings including tertiary and motor vehicles or maritime are equipped with glazing coated with a low emissivity layer.
Une couche à faible émissivité réfléchit préférentiellement les Infrarouges mais est transparente à la lumière visible. A low emissivity layer preferentially reflects infrared but is transparent to visible light.
Les couches à faible émissivité, également appelées peu émissives, basse émissive ou « low-e », sont des couches métalliques ou d'oxydes métallique, déposées sur des verres clairs de type « float », verres extra clairs de type «low-iron » ou des verres teintés dans la masse, par des méthodes de type pyrolytique ou obtenues par pulvérisation. Un dépôt de type pyrolytique est considéré comme une couche dure ou mi-dure tandis qu'un dépôt par pulvérisation sous vide est considéré comme une couche tendre ou douce. Une couche tendre a une performance plus importante en termes d'isolation thermique qu'une couche dure, mais est plus délicate. The low-emissivity layers, also called low emissivity, low emissivity or "low-e", are metal layers or metal oxides, deposited on clear glasses type "float", extra-clear glasses type "low-iron" Or glasses tinted in the mass, by methods of the pyrolytic type or obtained by spraying. A pyrolytic type deposit is considered a hard or a hard layer whereas a vacuum spray deposit is considered a soft or soft layer. A soft layer has a greater performance in terms of thermal insulation than a hard layer, but is more delicate.
Ainsi une couche tendre est généralement utilisée en face interne d'un vitrage multiple. Plus précisément, ces couches tendres sont obtenues par pulvérisation cathodique (PVD), éventuellement assistée par champ magnétique, communément réalisée par un dispositif appelé « magnétron ». Thus, a soft layer is generally used on the internal face of a multiple glazing unit. More specifically, these soft layers are obtained by cathodic sputtering (PVD), possibly assisted by magnetic field, commonly performed by a device called "magnetron".
Ces couches tendres sont fragiles à la manipulation et sensibles à l'oxydation et aux procédés de nettoyage inhérents à la réalisation de verre feuilleté et à l'assemblage de vitrage double ou triple isolant. Les couches à faible émissivité peuvent être à base d'argent, d'aluminium, de cuivre, d'or, de palladium, de platine ou leur mélange ou alliage, plus couramment d'argent. Cette couche tendre est communément déposée sous une couche en matériau diélectrique dite protectrice, sacrificielle ou de blocage, ou entre deux couches diélectriques, qui ont le rôle de fixer l'oxygène notamment lors d'un traitement thermique pour limiter voire éviter l'oxydation de la couche tendre. Il est d'ailleurs communément employé une superposition de plusieurs assemblages de couche diélectrique et de couche à faible émissivité. Les couches diélectriques ont encore pour fonction de limiter la réflexion des longueurs d'onde visible, et de maintenir une neutralité de couleur en réflexion. Des exemples de couches tendres sont décrites dans les documents EP 0 233 003, EP 0611 213 et EP 1 375 445. These soft layers are fragile in handling and sensitive to oxidation and cleaning processes inherent in the production of laminated glass and the assembly of double or triple insulating glass. The low emissivity layers may be based on silver, aluminum, copper, gold, palladium, platinum or their mixture or alloy, more commonly silver. This soft layer is commonly deposited under a layer of so-called protective dielectric material, sacrificial or blocking, or between two dielectric layers, which have the role of fixing oxygen in particular during a heat treatment to limit or even prevent the oxidation of the soft layer. It is also commonly used a superposition of several assemblies of dielectric layer and low emissivity layer. The dielectric layers also have the function of limiting the reflection of the visible wavelengths, and of maintaining a neutrality of color in reflection. Examples of soft layers are described in EP 0 233 003, EP 0611 213 and EP 1 375 445.
Ces revêtements diélectriques sont bien connus du domaine des panneaux de verre à couche, déposés par pulvérisation cathodique, qui sont en général des oxydes, des oxy-nitrures ou nitrures métalliques, tels que des oxydes d'aluminium, de chrome, d'étain, de gallium, de magnésium, de niobium, de silicium, de titane, d'yttrium, de zinc et de zirconium. Plus couramment, l'oxyde de zinc dopé, par exemple avec des oxydes d'aluminium, de gallium ou d'étain, est combiné avec des couches à faible émissivité à base d'argent. These dielectric coatings are well known in the field of layered glass panels, deposited by sputtering, which are generally oxides, metal oxynitrides or nitrides, such as oxides of aluminum, chromium, tin, gallium, magnesium, niobium, silicon, titanium, yttrium, zinc and zirconium. More commonly, doped zinc oxide, for example with oxides of aluminum, gallium or tin, is combined with silver-based low-emissivity layers.
De manière commune, la production d'un verre clair de type « float » consiste à faire flotter le verre en fusion sur un bain d'étain liquide. Le verre en fusion, à une température avoisinant les 1000°C, est versé de manière continue depuis un four pour se répandre sur un bain peu profond fait d'étain fondu. Le verre flotte sur l'étain, s'étale et forme une surface parfaitement plane. Commonly, the production of a clear glass float type is to float the molten glass on a bath of liquid tin. The molten glass, at a temperature of around 1000 ° C, is poured continuously from an oven to spread over a shallow bath made of molten tin. The glass floats on the tin, spreads out and forms a perfectly flat surface.
Un verre extra clairs de type «low-iron » est un verre de type « float » qui comprend une faible teneur en oxyde de fer, tandis qu'un verre teinté dans la masse est un verre de type « float » comprenant des teneurs élevées d'oxydes métalliques. An extra-clear "low-iron" type glass is a "float" type glass that includes a low iron oxide content, while a bulk tinted glass is a "float" type glass comprising high levels. of metal oxides.
Ces feuilles de verre sont ensuite directement traitées par les verriers, par un dépôt de couches qui se réalise sur le verre chaud en ligne (couches pyrolytiques) ou par procédé électromagnétique (couches sous vide). Une couche à faible émissivité est en général déposée sur la face étain d'une feuille de verre. These sheets of glass are then directly treated by the glassmakers, by a layer deposition which is carried out on the hot glass in line (pyrolytic layers) or by electromagnetic process (vacuum layers). A low emissivity layer is generally deposited on the tin face of a glass sheet.
Ces panneaux de verres à couches sont ensuite livrés aux transformateurs qui les assemblent en feuilleté et/ou en double ou triple vitrage. These layered glass panels are then delivered to the transformers who assemble them laminated and / or double or triple glazing.
Notons que ce ne sont pas les mêmes intervenants qui produisent les feuilles de verre à couche et qui les assemblent en verres feuilletés et en vitrages multiples, étant donné que les installations nécessaires à un dépôt de couche à faible émissivité représentent un encombrement et un investissement conséquent, pour lesquels les transformateurs ne sont pas équipés. It should be noted that it is not the same stakeholders that produce the layered glass sheets and assemble them into laminated glass and multiple glazing, since the installations required for a low-emissivity layer deposit represent a bulk and a substantial investment. , for which the transformers are not equipped.
En outre, les habitudes de travail sont bien établies dans le domaine verrier et la production et l'assemblage représentent deux corps de métier différents. In addition, work habits are well established in the glass industry and production and assembly represent two different trades.
Un vitrage feuilleté est un assemblage de deux ou plusieurs feuilles de verre minéral ou organique assemblées entre elles par un ou plusieurs films intercalaires en plastique, préférentiellement en thermoplastique, tandis qu'un double ou triple vitrage est un assemblage de deux ou trois feuilles de verre ou vitrages feuilletés assemblées entre eux, unis sur leur pourtour par un ou des intercalaire(s) métallique (s) ou un ou des intercalaire(s) thermoplastique(s) communément appelé(s) « vitrage à intercalaires chauds » et séparées par un espace d'air ou de gaz. A laminated glazing unit is an assembly of two or more sheets of mineral or organic glass assembled together by one or more plastic interlayer films, preferably thermoplastic, while a double or triple glazing is an assembly of two or three sheets of glass or laminated glazings assembled together, united on their periphery by one or metal interlayer (s) or thermoplastic interlayer (s) commonly known as "hot interlayer glazing" and separated by a air space or gas.
Cependant, préalablement à ces assemblages, une feuille de verre à couche, doit subir un nombre conséquent d'étapes de préparation consistant à des procédés de découpe, de façonnage et de traitement thermique, intercalées par des étapes de nettoyage et de contrôle de la qualité de la couche tendre. Chacune de ces étapes représente un risque non négligeable de détériorer la couche tendre, engendrant un nombre non négligeable de panneaux écartés par les étapes de contrôle. However, prior to these assemblies, a layered glass sheet must undergo a number of preparation steps consisting of cutting processes, shaping and heat treatment, interspersed with steps of cleaning and quality control of the soft layer. Each of these steps represents a significant risk of damaging the soft layer, resulting in a significant number of panels removed by the control steps.
Le façonnage des arrêtes d'un panneau de verre consiste essentiellement en l'élimination et le polissage des bords coupants et la rectification et le polissage des bords de la tranche de coupe, tandis que les opérations de nettoyage consistent en rutilisation d'eau déminéralisée et de brosses dites souples. Ces dernières étapes présentent également un risque de détérioration de la couche tendre. The shaping of the edges of a glass panel consists essentially of the removal and polishing of the cutting edges and the grinding and polishing of the edges of the cutting edge, while the Cleaning operations consist of the reuse of demineralised water and so-called soft brushes. These last steps also present a risk of deterioration of the soft layer.
Afin d'obtenir des verres trempés ayant une forte résistance mécanique, les feuilles de verres subissent un traitement thermique de renforcement, à des températures comprises en générale entre 450 et 650°C, suivit d'une trempe, la manipulation d'un panneau de verre à couche lors de ces traitements est également une opération critique pour le maintien de la qualité de la couche à faible émissivité. In order to obtain toughened glasses having a high mechanical strength, the glass sheets undergo a reinforcing heat treatment, at temperatures generally between 450 and 650 ° C, followed by quenching, the manipulation of a glass panel. layered glass during these treatments is also a critical operation for maintaining the quality of the low emissivity layer.
Une des dernières étapes de la préparation d'une feuille de verre à couche, est un test thermique, communément appelé « Heat Soak Test » (HST), encore appelé Traitement de Haute Sécurité. Ce test thermique permet d'écarter les vitres présentant des risques de brisure spontanée sous l'influence de la présence d'inclusions de sulfure de nickel. One of the final steps in the preparation of a layered glass sheet is a thermal test, commonly known as "Heat Soak Test" (HST), also called High Security Treatment. This thermal test makes it possible to remove the windows presenting risks of spontaneous breaking under the influence of the presence of inclusions of nickel sulphide.
Au cours du processus de production de verre flotté, des particules de sulfure de nickel peuvent pénétrer sporadiquement dans la masse d'une feuille de verre. Lors de la production d'une feuille de verre dans un four, les particules de sulfure de nickel réduisent de volume et ne peuvent retrouver leur taille d'origine lors du refroidissement rapide de la trempe. During the float glass production process, nickel sulfide particles may sporadically penetrate the mass of a glass sheet. When producing a glass sheet in an oven, the nickel sulfide particles shrink in size and can not recover to their original size during rapid cooling of the quench.
Un panneau de verre monté sur une façade d'un immeuble est sollicité thermiquement par les rayons du soleil. Lors de la montée en température d'un vitrage comprenant une inclusion de sulfure de nickel, cette dernière a tendance à augmenter de volume et retrouver son volume d'origine, ce qui engendre une augmentation des tensions internes du verre. Si une telle particule se trouve dans la zone des tensions de dilatation du vitrage, il existe une probabilité que le niveau des tensions admissibles soit dépassé et qu'un éclatement spontané du vitrage ait lieu. A glass panel mounted on a facade of a building is thermally stressed by the sun's rays. During the rise in temperature of a glazing comprising an inclusion of nickel sulphide, the latter tends to increase in volume and return to its original volume, which causes an increase in internal tensions of the glass. If such a particle is in the zone of expansion voltages of the glazing, there is a probability that the level of the admissible voltages is exceeded and a spontaneous bursting of the glazing takes place.
Ce test thermique HST répond à des normes nationales et consiste à chauffer la feuille de verre à une température comprise entre 280 et 300°C pendant un temps déterminé selon les normes, compris entre 2 et 4 heures. Cette montée en température provoque un dévoilement de la feuille, révélant l'inclusion de sulfure de nickel par l'éclatement du vitrage. Afin de respecter la norme, ce test thermique doit être réalisé, une fois que la feuille de verre est découpée et façonnée. This HST thermal test meets national standards and consists of heating the glass sheet to a temperature between 280 and 300 ° C for a time determined according to standards, between 2 and 4 hours. This rise in temperature causes an unveiling of the sheet, revealing the inclusion of nickel sulphide by the bursting of the glazing. In order to meet the standard, this thermal test must be performed, once the glass sheet is cut and shaped.
Il est entendu qu'une feuille de verre à couche est plus onéreuse qu'un verre clair sans couche, la réalisation de ce test thermique obligatoire pour les panneaux de verre destinés à être placés à une hauteur supérieure à 4 mètres, est d'autant plus dommageable sur un verre à couche que sur un verre clair, qui a notamment déjà subi des étapes de préparation, apportant d'ores et déjà une valeur ajoutée. It is understood that a sheet of coated glass is more expensive than a clear glass without a layer, the realization of this compulsory thermal test for the glass panels intended to be placed at a height greater than 4 meters, is all the more more damaging on a coated glass than on a clear glass, which has in particular already undergone preparation stages, already bringing an added value.
La réalisation de vitrage feuilleté dont l'un des panneaux de verre présente une couche à faible émissivité, est manipulée pour former l'empilement du vitrage feuilleté et l'ensemble est de nouveau manipulé pour son passage dans une presse, réalisant l'assemblage par laminage. Ces manipulations présentent des risques de détérioration de la couche tendre. The production of laminated glazing, one of whose glass panels has a low-emissivity layer, is manipulated to form the stack of the laminated glazing and the assembly is again manipulated for its passage in a press, producing the assembly by rolling. These manipulations present risks of deterioration of the soft layer.
A ce stade, la couche tendre est à l'air et le risque d'oxydation et de rayure est non négligeable. C'est d'autant plus dommageable qu'à ce degré d'avancement, un vitrage feuilleté présente déjà une valeur ajoutée importante. At this stage, the soft layer is in the air and the risk of oxidation and scratching is not negligible. This is all the more damaging to the fact that at this stage of advancement, a laminated glazing already has a significant added value.
Bien qu'une couche tendre est en général placée à l'intérieur d'un vitrage multiple, il est également possible de la positionner sur la face extérieure d'un vitrage, mais requiert bien entendu une couche protectrice se présentant sous un film extérieur. De telles structures de vitrage sont par exemple décrites dans les documents WO 2013/089185, EP 2685294, FR 2414114 et FR 3 030496. Although a soft layer is generally placed inside a multiple glazing, it is also possible to position it on the outer face of a glazing, but of course requires a protective layer under an outer film. Such glazing structures are for example described in the documents WO 2013/089185, EP 2685294, FR 2414114 and FR 3 030496.
Dans le cadre de vitrage à double ou triple isolation, l'assemblage d'une feuille de verre à couche ou d'un vitrage feuilleté à couche, à une contre face, par l'intermédiaire d'une barrière étanche de scellement, réalisant une entretoise entre deux feuilles ou deux vitrages feuilletés, requiert, pour l'obtention d'une bonne adhérence par l'utilisation de colle et/ ou de mastic de scellement, de meuler la périphérie du panneau de verre à couche. Cette étape de préparation du panneau de verre à couche, requiert donc une étape supplémentaire de nettoyage de la face comportant la couche tendre, augmentant de nouveau le risque de détérioration de cette dernière. Ces vitrages à double ou triple isolation sont des produits finis, prêts à être livrés, le risque de constater des rayures à postériori reste important. In the frame of double or triple insulation glazing, the assembly of a sheet of layered glass or of a layered laminated glazing unit, at a counter-face, by means of a sealed sealing barrier, realizing a spacer between two sheets or two laminated glazings, requires, in order to obtain a good adhesion by the use of glue and / or sealant, to grind the periphery of the layered glass panel. This stage of preparation of the layered glass panel, therefore requires an additional step of cleaning the face with the soft layer, again increasing the risk of deterioration of the latter. These double or triple insulation glazings are finished products, ready for delivery, the risk of finding scratches after the fact remains important.
Un défaut de la couche à faible émissivité, engendre un phénomène d'iridescence du vitrage, qui se révèle par une impression de changement de couleur selon l'angle de vue ou d'illumination. A defect of the low-emissivity layer, causes a phenomenon of iridescence of the glazing, which is revealed by an impression of color change according to the angle of view or illumination.
Afin d'améliorer les performances des vitrages à multiples isolations, le film intercalaire d'un verre feuilleté peut présenter des propriétés thermochromes, électrochromes ou photovoltaïque. Ces vitrages sont communément appelés des vitrages fonctionnels ou dynamiques. Un film intercalaire thermochrome est composé de matériaux dont les propriétés optiques changent en fonction de la température, de manière réversible, par exemple un film polymère dopé avec des complexes de métaux de transition tel que l'oxyde de vanadium. Les métaux de ces complexes changent de coordination, modifiant la transmission et la couleur du film polymère sous l'effet de la température. In order to improve the performance of multiple insulation glazings, the interlayer film of a laminated glass may have thermochromic, electrochromic or photovoltaic properties. These glazings are commonly called functional or dynamic glazing. A thermochromic interlayer film is composed of materials whose optical properties change as a function of temperature, in a reversible manner, for example a polymer film doped with complexes of transition metals such as vanadium oxide. The metals in these complexes change coordination, altering the transmission and color of the polymer film under the effect of temperature.
Un film intercalaire électrochrome a la particularité de changer de propriétés optiques sous l'effet de l'application d'un champ électrique. Ces changements de propriétés optiques peuvent être rémanents mais réversibles ou non rémanents, correspondant à des vitraux appelés « assombrissants » et « obturateurs » respectivement, tel qu'indiqué dans le document « les verres à couches, Serge Etienne, Laboratoire de Physique des matériaux, UMR CNRS 7756, Nancy Pôle Verrier/ Cerfav, février 09 ». An electrochromic interlayer film has the particularity of changing optical properties under the effect of the application of an electric field. These changes in optical properties can be persistent but reversible or non-persistent, corresponding to stained glass windows called "darkening" and "shutters" respectively, as indicated in the document "layered glasses, Serge Etienne, Laboratory of Physics of Materials, UMR CNRS 7756, Nancy Pole Verrier / Cerfav, February 09 ".
Un film d'un vitrage ayant des propriétés optiques non rémanentes, est constitué d'une matrice polymère contenant des gouttelettes de cristaux liquides, tandis qu'un film ayant des propriétés optiques rémanentes comprend par exemple de l'oxyde de tungstène. A film of a glazing having non-remanent optical properties consists of a polymer matrix containing droplets of liquid crystals, while a film having persistent optical properties comprises, for example, tungsten oxide.
Ces films intercalaires sont placés au contact de faces conductrices par un dépôt d'ITO (à base d'oxyde d'étain et d'indium), de panneaux de verres d'un vitrage feuilleté. Les vitrages ayant un changement de propriétés optiques non rémanentes, sont translucides lorsqu' aucune tension électrique n'est appliquée, tandis qu'ils sont transparents lorsqu'une tension électrique alternative est appliquée. These interlayer films are placed in contact with conductive faces by a deposition of ITO (based on tin oxide and indium), glass panels of a laminated glazing. Glazing having a change in non-remanent optical properties is translucent when no electrical voltage is present. applied, while they are transparent when an AC voltage is applied.
Les vitrages ayant un changement de propriétés optiques rémanentes mais réversible, ont un changement d'absorption optique, d'un état clair à un état sombre et vice versa, par l'application d'un courant continu ayant un sens opposé. Glazing with a reversible but reversible optical property change has a change in optical absorption, from a light state to a dark state and vice versa, by the application of a direct current having an opposite direction.
Ces vitrages feuilletés fonctionnels sont plus chers à produire, que des vitrages feuilletés conventionnels, la détérioration de la couche à faible émissivité est d'autant plus grave, étant donné que l'intégralité du verre feuilleté fonctionnel, en cas de rayures, est à jeter au rebus. These functional laminated glazings are more expensive to produce, than conventional laminated glazing, deterioration of the low-emissivity layer is all the more serious, since the entirety of functional laminated glass, in case of scratches, is discarded. rejected.
Notons également que sous l'effet des contraintes climatiques, un vitrage doit pouvoir se déformer librement. L'effet des charges climatiques amène des modifications de la géométrie des vitrages. Il se déforment comme une voile de bateau se gonfle. Ainsi, dans le cadre de la technique dite VE A (verre extérieur attaché), les vitrages d'une façade d'un bâtiment intégralement ou partiellement constituée de panneaux de verre, sont liés entre eux par des fixations en général articulées, telles que par des rotules, afin que les vitrages se trouvent libres de se déformer sous l'effet des charges climatiques. Ces fixations traversent de part et d'autre les vitrages. En conséquence, les panneaux de verre à couche doivent être percés, ce qui représente un risque supplémentaire d'endommager la couche tendre à faible émissivité. Note also that under the effect of climatic constraints, a glazing must be able to deform freely. The effect of climatic loads leads to changes in the glazing geometry. They deform like a boat sail inflates. Thus, in the context of the so-called VE A technique (external glass attached), the glazing of a facade of a building integrally or partially made of glass panels, are interconnected by fasteners generally articulated, such as by ball joints, so that the windows are free to deform under the effect of climatic loads. These fixings traverse both sides of the glazing. As a result, the layered glass panels must be drilled, which represents an additional risk of damaging the low-emissivity soft layer.
La présente invention propose un procédé de traitement et d'assemblage de vitrage comprenant une couche tendre à faible émissivité, permettant de pallier les inconvénients précités. The present invention provides a method of treating and assembling glazing comprising a low-emissivity soft layer, to overcome the aforementioned drawbacks.
Ainsi, le procédé de traitement et d'assemblage de vitrage feuilleté et/ou de vitrage multiple feuilleté, selon l'invention, à partir de feuilles de verre de type float, comprend les étapes de prise en charge d'au moins une première feuille de verre et d'une seconde feuille de verre, de découpe et façonnage de la première et seconde feuille de verre pour l'obtention de panneaux de verre, de dépôt d'une couche à faible émissivité par pulvérisation sous vide sur l'une des faces de l'un des panneaux de verre, et d'assemblage des panneaux de verre en vitrage feuilleté, tandis que la couche étant positionnée entre les deux panneaux de verre par l'intermédiaire d'au moins un film intercalaire polymérique ou à l'extérieur du vitrage feuilleté en face II, ladite couche étant destinée à venir se positionner en regard soit d'un film polymérique extérieur, soit d'une contre face ou d'un contre vitrage feuilleté par l'intermédiaire de scellements et de barrières d'étanchéité. Thus, the process for the treatment and assembly of laminated glazing and / or laminated multiple glazing, according to the invention, from glass sheets of float type, comprises the steps of taking care of at least a first sheet of glass and a second glass sheet, cutting and shaping the first and second glass sheet to obtain glass panels, depositing a low emissivity layer by vacuum spraying on one of the faces of one of the glass panels, and for assembling the glass panels in laminated glazing, while the layer being positioned between the two glass panels by means of at least one polymeric interlayer film or outside the laminated glass on the face II, said layer being intended to be positioned opposite either an outer polymeric film, or against a counterface or a laminated against glazing through seals and sealing barriers.
Selon une caractéristique, postérieurement aux étapes de découpe et de façonnage, et préalablement au dépôt de la couche à faible émissivité, les panneaux de verre subissent une étape de traitement thermique de renforcement mécanique suivi d'une trempe. According to one characteristic, after the cutting and shaping steps, and prior to the deposition of the low-emissivity layer, the glass panels undergo a mechanical heat treatment step followed by quenching.
Selon une caractéristique complémentaire, le procédé comprend des étapes de perçage des panneaux de verre préalablement à l'étape de dépôt de la couche à faible émissivité. According to a complementary characteristic, the method comprises steps of drilling the glass panels prior to the deposition step of the low emissivity layer.
Selon un mode de réalisation, le procédé comprend une unique étape de lavage de la couche à faible émissivité préalablement à l'assemblage de l'un des panneaux de verre, d'un film polymérique extérieur, d'une contre face ou d'un contre vitrage feuilleté. According to one embodiment, the method comprises a single step of washing the low-emissivity layer prior to assembling one of the glass panels, an outer polymeric film, a counterface or a against laminated glazing.
Selon une caractéristique supplémentaire, le procédé comprend une étape de réalisation d'une épargne en périphérie extérieure de la face destinée à recevoir le dépôt de la couche à faible émissivité. According to a further characteristic, the method comprises a step of making savings at the outer periphery of the face intended to receive the deposition of the low-emissivity layer.
Selon un mode de réalisation préféré, l'étape d'assemblage en vitrage feuilleté des panneaux de verre par l'intermédiaire d'au moins un film intercalaire polymérique, est réalisée préalablement à l'étape de dépôt de la couche à faible émissivité. Selon un mode de réalisation, au moins un des films intercalaires polymériques est un film fonctionnel de type thermochrome, électrochrome ou photovoltaïque, de préférence thermochrome. According to a preferred embodiment, the laminated glazing assembly step of the glass panels by means of at least one polymeric interlayer film is performed prior to the deposition step of the low emissivity layer. According to one embodiment, at least one of the polymeric interlayer films is a functional film of the thermochromic, electrochromic or photovoltaic type, preferably thermochromic.
Selon une caractéristique, la couche à faible émissivité est directement déposée sur la surface d'un panneau de verre, à savoir que la couche ne comprend pas de matériaux diélectriques. D'autres caractéristiques et avantages de l'invention se dégageront de la description qui va suivre en regard des dessins annexés qui ne sont donnés qu'à titre d'exemples non limitatifs. According to one characteristic, the low-emissivity layer is directly deposited on the surface of a glass panel, namely that the layer does not comprise dielectric materials. Other features and advantages of the invention will become apparent from the description which follows with reference to the accompanying drawings which are given by way of non-limiting examples.
Les figures 1 à 3 sont des vues en coupe illustrant les étapes de traitement et d'assemblage de feuilles, de panneaux ou de vitrages, selon l'invention. Figures 1 to 3 are sectional views illustrating the processing steps and assembly of sheets, panels or glazings, according to the invention.
La figure 1 est une vue illustrant la découpe et le façonnage de feuille de verre clair de type ffoat FIG. 1 is a view illustrating the cutting and shaping of clear glass sheet of ffoat type
La figure 2 est une vue illustrant l'assemblage de panneaux de verre clairs en vitrage feuilleté. Figure 2 is a view illustrating the assembly of clear glass panels in laminated glazing.
La figure 3 est une vue illustrant le dépôt d'une couche à faible émissivité sur un vitrage feuilleté. Figure 3 is a view illustrating the deposition of a low emissivity layer on a laminated glazing.
La figure 4 est une vue d'un vitrage multiple feuilleté. Figure 4 is a view of a laminated multiple glazing.
La figure 5 est une vue d'un vitrage feuilleté à couche interne. La figure 6 est une vue d'un simple vitrage feuilleté à couche externe. Figure 5 is a view of an internal layer laminated glazing unit. Figure 6 is a view of a single laminated glazing with an outer layer.
Ainsi, les procédés selon l'invention, concernent le traitement et l'assemblage de vitrage feuilleté, de double ou triple vitrage feuilleté, préférentiellement de double ou triple vitrage feuilleté fonctionnel, dans lesquels au moins un panneau de verre (PI, P2) subit une étape de dépôt d'une couche (C) à faible émissivité déposée par pulvérisation sous vide. Thus, the processes according to the invention concern the treatment and assembly of laminated glazing, double or triple laminated glazing, preferentially double or triple functional laminated glazing, in which at least one glass panel (PI, P2) undergoes a step of depositing a layer (C) low emissivity deposited by vacuum spraying.
Plus précisément, les procédés selon l'invention concernent au moins une étape de dépôt d'une couche (C) à faible émissivité sur au moins un panneau de verre (PI, P2) préalablement découpé, façonné, avantageusement ayant subi un traitement thermique de renforcement mécanique et un test thermique HST, au vu d'un assemblage dans un vitrage feuilleté et/ ou dans un double ou triple vitrage feuilleté, préférentiellement dans un double ou triple vitrage feuilleté fonctionnels. More specifically, the processes according to the invention relate to at least one step of depositing a low-emissivity layer (C) on at least one pre-cut, formed, preferably heat-treated glass panel (PI, P2). mechanical reinforcement and an HST thermal test, in view of an assembly in a laminated glazing unit and / or in a double or triple laminated glazing unit, preferably in a functional double or triple laminated glazing unit.
Notons que seuls les procédés relatifs à des simples vitrages feuilletés et doubles vitrages feuilletés, de préférence fonctionnels seront décrits dans la suite de la description, étant donné que la réalisation d'un triple vitrage à partir d'un double vitrage est un procédé bien connu du domaine concerné, consistant en la répétition des étapes de collage des scellements, de positionnement d'un second contre vitrage et de réalisation de barrières d'étanchéité. Dans la suite de la description, la mention de feuille de verre de typeNote that only the processes relating to single laminated glazing and laminated double glazing, preferably functional, will be described in the remainder of the description, since the realization of a triple glazing with From a double glazing is a well-known process of the field concerned, consisting of the repetition of the steps of bonding seals, positioning a second against glazing and making sealing barriers. In the rest of the description, the mention of type glass sheet
« float » correspond tant à la mention de verre clair, que de verre extra clair de type « low-iron » ou de verre teinté dans la masse. "Float" corresponds both to the mention of clear glass, extra-clear glass type "low-iron" or glass tinted in the mass.
Notons que les détails des étapes de procédé relatifs aux étapes de collage des scellements et réalisation de barrières d'étanchéité sont bien connus du domaine concerné et ne sont pas l'objet de l'invention, ces étapes ne seront qu'évoquées succinctement dans la suite de la description. Note that the details of the process steps relating to the steps of sealing and sealing barriers are well known in the field and are not the subject of the invention, these steps will be briefly mentioned following the description.
Il est entendu qu'un double ou triple vitrage est un vitrage multiple, tandis qu'un vitrage multiple fonctionnel, tel que précisé précédemment, est un vitrage multiple thermochrome, électrochrome ou photovoltaïque, de préférence thermochrome. It is understood that a double or triple glazing is a multiple glazing, while a functional multiple glazing, as specified above, is a thermochromic multiple glazing, electrochromic or photovoltaic, preferably thermochromic.
Il est également entendu qu'une couche (C) à faible émissivité est considérée comme une couche tendre, telle que précisée précédemment. It is also understood that a low-emissivity layer (C) is considered as a soft layer, as previously specified.
Notons qu'une feuille de verre de type « float » ou un panneau de verre est considéré(e) comme clair(e), lorsque ses surfaces sont dépourvues de couche notamment de couche à faible émissivité. Note that a glass sheet type "float" or a glass panel is considered as clear, when its surfaces are devoid of layer including low emissivity layer.
Dans la suite de la description, il est fait référence à « une feuille de verre » pour un substrat brut de type float, tandis qu'il est fait référence à « un panneau de verre » ou « panneau » pour une feuille de verre découpée, façonnée et ayant avantageusement subi un traitement thermique de renforcement. In the rest of the description, reference is made to "a glass sheet" for a raw substrate of the float type, while reference is made to "a glass panel" or "panel" for a cut glass sheet , shaped and having advantageously underwent a reinforcing heat treatment.
Précisons qu'un panneau de verre (PI, P2) est minéral ou organique, préférentiellement minéral. Note that a glass panel (PI, P2) is mineral or organic, preferably mineral.
Précisons qu'il est fait référence aux termes « externe » et « interne » pour le positionnement d'une face ou d'une couche à l'extérieur ou à l'intérieur d'un ensemble ou d'un espace entre deux feuilles respectivement. De manière usuelle, la numérotation des faces des panneaux de verre dans la suite de la description fait référence à la nomenclature classiquement employée pour les vitrages, à savoir que la face destinée à être disposée à l'extérieur porte la référence I, tandis que la face destinée à être disposée à l'intérieur d'un bâtiment ou de l'habitacle d'un véhicule porte la référence la plus élevée, par exemple II pour un vitrage feuilleté à deux feuilles de verre, IV pour un double vitrage et VI pour un triple vitrage. Note that reference is made to the terms "external" and "internal" for the positioning of a face or a layer outside or inside a set or space between two sheets respectively . In the usual manner, the numbering of the faces of the glass panels in the following description refers to the nomenclature conventionally used for glazing, namely that the face intended to be arranged outside bears the reference I, while the face intended to be arranged inside a building or the passenger compartment of a vehicle has the highest reference, for example II for laminated glass with two glass sheets, IV for double glazing and VI for triple glazing.
Les références VI, Via et Vlb correspondent à un vitrage feuilleté sans couche, un vitrage feuilleté à couche externe et un vitrage feuilleté à couche interne respectivement. References VI, Via and Vlb correspond to a layerless laminated glazing unit, an external layer laminated glazing unit and an internal layer laminated glazing unit respectively.
Rappelons qu'un vitrage feuilleté (VI, Via, Vlb) selon l'invention est réalisé par l'assemblage de panneaux de verre (PI, P2) qui sont obtenus par la préparation préalable de feuilles de verre (Fl, F2) claires de type « float ». Recall that a laminated glazing (VI, Via, Vlb) according to the invention is achieved by the assembly of glass panels (PI, P2) which are obtained by the prior preparation of clear glass sheets (F1, F2) of type "float".
Ces étapes de préparation comprennent la prise en charge de feuilles de verre (Fl, F2) qui sont découpées à la dimension du vitrage désiré, façonnées par l'élimination et le polissage des bords coupants et la rectification et le polissage des bords de la tranche de coupe, suivi avantageusement par un traitement thermique de renforcement mécanique à une température comprise entre 450 et 650°C, suivi d'une trempe. Ces étapes de préparation sont intercalées par des étapes de nettoyage communément utilisées dans le domaine concerné, par l'utilisation d'eau déminéralisée et de brosses dites souples. These preparation steps include the handling of glass sheets (F1, F2) which are cut to the desired glazing size, shaped by the removal and polishing of the cutting edges and the grinding and polishing of the edges of the wafer. cutting, advantageously followed by a heat treatment mechanical reinforcement at a temperature between 450 and 650 ° C, followed by quenching. These preparation steps are interposed by cleaning steps commonly used in the field concerned, by the use of demineralised water and so-called flexible brushes.
Les étapes préparatoires du procédé selon l'invention permettent notamment de ne pas faire subir à un panneau (PI, P2) à couche un traitement thermique de renforcement mécanique. The preparatory steps of the method according to the invention make it possible in particular not to subject a panel (PI, P2) layer to a heat treatment mechanical reinforcement.
Selon une caractéristique complémentaire, les panneaux de verre (PI, P2) clairs, subissent des étapes préparatoires de perçage au vu de la formation d'orifices destinés à recevoir des éléments de fixation. According to a complementary feature, the clear glass panels (PI, P2) undergo preparatory piercing steps in view of the formation of orifices for receiving fasteners.
Selon la caractéristique précédente, la réalisation des étapes de perçage des panneaux de verre (PI, P2) clairs, préalablement à l'étape de dépôt de la couche à faible émissivité, permet de ne pas endommager cette dernière. Une fois les panneaux de verre (PI, P2) clairs finalisés, ces derniers subissent avantageusement un test thermique HST. According to the preceding characteristic, the realization of the steps of drilling clear glass panels (PI, P2), prior to the deposition step of the low emissivity layer, makes it possible not to damage the latter. Once clear glass panels (PI, P2) finalized, they advantageously undergo a thermal test HST.
Ajoutons également que les panneaux de verre comprenant des inclusions de sulfure de nickel sont écartés par le test thermique HST, préalablement à T étape de dépôt de la couche (C) à faible émissivité, telle qu'explicitée ci-après. It should also be added that the glass panels comprising inclusions of nickel sulphide are removed by the HST thermal test, prior to the deposition step of the low-emissivity layer (C), as explained hereinafter.
Ajoutons qu'une fois que les panneaux de verre (PI, P2) clairs sont, soient prêts à être assemblés en vitrage feuilleté (VI, Via, Vlb), soit préassemblés en vitrage feuilleté (VI) sans couche, au moins une des faces d'un panneau de verre clair subit une étape de dépôt d'une couche à faible émissivité par pulvérisation sous vide, avantageusement assistée par champ magnétique. Let us add that once the clear glass panels (PI, P2) are ready to be assembled in laminated glazing (VI, Via, Vlb), or preassembled in laminated glazing (VI) without a layer, at least one of the faces of a clear glass panel undergoes a deposition step of a low-emissivity layer by vacuum sputtering, advantageously assisted by magnetic field.
Rappelons qu'il est entendu qu'un panneau clair ne comprend pas de couche, tandis qu'un panneau à couche comprend une couche tendre, telle qu'explicitée précédemment. Recall that it is understood that a clear panel does not include a layer, while a layered panel comprises a soft layer, as explained above.
Notons qu'un vitrage feuilleté (Via, Vlb) à couche comprend un premier panneau de verre (PI), destiné à être dirigé vers l'extérieur d'un bâtiment ou d'un habitacle d'un véhicule automobile ou maritime, assemblé à un second panneau de verre (P2) par l'intermédiaire d'au moins un film intercalaire polymérique, dont au moins Tune des faces des panneaux de verre (PI, P2) comprend un dépôt d'une couche tendre. It should be noted that a layered laminated glazing unit (Via, Vlb) comprises a first glass panel (PI) intended to be directed towards the outside of a building or a passenger compartment of a motor vehicle or maritime vehicle, assembled at a second glass panel (P2) via at least one polymeric interlayer film, at least one of the faces of the glass panels (PI, P2) comprises a deposition of a soft layer.
Selon un mode de réalisation, le procédé comprend une étape de dépôt d'une couche à faible émissivité (C) sur la face II du panneau (PI) destinée à être dirigée vers l'extérieur. Selon le mode de réalisation précédent, l'étape d'assemblage d'un vitrage feuilleté (Vlb) à couche interne comprend le positionnement sous presse, de la face II du panneau (PI) au contact d'au moins un film intercalaire polymérique (3, 4), qui est lui-même positionné au contact de la face III du second panneau (P2) clair destiné à être dirigé vers l'intérieur. Selon un autre mode de réalisation, le procédé comprend une étape de dépôt d'une couche à faible émissivité (C) sur la face IV du second panneau (P2). Selon le mode de réalisation précédent, l'étape d'assemblage d'un vitrage feuilleté (Via) à couche externe comprend le positionnement sous presse, du premier panneau de verre (PI) clair au contact d'un film intercalaire polymérique (3, 4) qui est lui-même au contact de la face III du second panneau (F2) dont la face IV est destinée à être dirigée vers l'intérieur d'un bâtiment ou d'un habitacle d'un véhicule automobile ou maritime. According to one embodiment, the method comprises a step of depositing a low-emissivity layer (C) on the face II of the panel (PI) intended to be directed outwards. According to the preceding embodiment, the step of assembling an internal layer laminated glazing unit (Vlb) comprises the press positioning of the face II of the panel (PI) in contact with at least one polymeric interlayer film ( 3, 4), which is itself positioned in contact with the face III of the second panel (P2) clear to be directed inwards. According to another embodiment, the method comprises a step of depositing a low-emissivity layer (C) on the face IV of the second panel (P2). According to the previous embodiment, the step of assembling an external layer laminated glazing (Via) comprises the press positioning of the first clear glass panel (PI) in contact with a polymeric interlayer film (3, 4) which is itself in contact with the face III of the second panel (F2) whose face IV is intended to be directed towards the interior of a building or a passenger compartment of a motor vehicle or maritime.
Selon une caractéristique, préalablement à l'étape de dépôt de la couche à faible émissivité sur la face IV du second panneau (P2), il est produit une étape de réalisation d'une épargne en périphérie de la face IV du second panneau (P2), par exemple par la pose d'un scotch d'épargne. According to one characteristic, prior to the deposition step of the low-emissivity layer on the face IV of the second panel (P2), there is produced a step of making savings on the periphery of the face IV of the second panel (P2 ), for example by placing a savings tape.
Le vitrage feuilleté (Via) à couche externe présenté dans le mode de réalisation précédent, est un produit semi-fini, destiné à être assemblé à une contre face ou à un contre vitrage feuilleté (V2, Via, Vlb) au vu de l'assemblage d'un vitrage multiple (VM). Selon une autre alternative, le procédé comprend une étape d'assemblage d'un film polymérique extérieur (6) assemblé à la face IV recouverte d'une couche tendre du vitrage feuilleté (Via) à couche externe décrit au mode de réalisation précédent, en alternative à la pose d'une contre face ou d'un contre vitrage feuilleté (V2, Via, Vlb). Selon l'alternative précédente, le vitrage feuilleté (Via) est destiné à être un vitrage simple feuilleté à couche. The laminated glazing (Via) with an outer layer presented in the preceding embodiment is a semi-finished product, intended to be assembled with a counter-face or a laminated counter-glazing (V2, Via, Vlb) in view of the assembly of a multiple glazing unit (VM). According to another alternative, the method comprises a step of assembling an outer polymeric film (6) assembled to the face IV covered with a soft layer of the laminated glazing (Via) with an outer layer described in the preceding embodiment, in alternative to the installation of a counter-face or laminated counter-glazing (V2, Via, Vlb). According to the previous alternative, the laminated glazing (Via) is intended to be a single layer laminated glazing.
Selon un mode de réalisation préféré, un premier panneau (PI) clair est assemblé à un second panneau (P2) clair en vitrage feuilleté (VI) sans couche, par l'intermédiaire d'au moins un film intercalaire (3, 4), tandis qu'une couche (C) à faible émissivité est déposée sur la face II du vitrage feuilleté (VI) préalablement obtenu. According to a preferred embodiment, a first clear panel (PI) is assembled to a second clear panel (P2) in laminated glazing (VI) without a layer, via at least one interlayer film (3, 4), while a low emissivity layer (C) is deposited on the face II of the previously obtained laminated glazing unit (VI).
Le procédé d'obtention d'un vitrage feuilleté (VI) sans couche, à partir de panneau (PI, P2) clair, limite d'autant plus la manipulation et l'exposition à l'air de la couche (C) tendre. Selon une caractéristique supplémentaire, préalablement au dépôt de la couche (C) tendre sur la face II du vitrage feuilleté (VI), il est réalisé une épargne (7) sur la périphérie de cette dernière, par exemple par la pose d'un scotch d'épargne. The method for obtaining a laminated glazing unit (VI) without a layer, from clear panel (PI, P2), further limits the handling and exposure to air of the layer (C) soft. According to an additional characteristic, prior to the deposition of the layer (C) on the face II of the laminated glazing (VI), it is made Savings (7) on the periphery of the latter, for example by laying a savings tape.
Cette dernière caractéristique permet de réaliser une zone claire dépourvue de couche (C) tendre, destinée à la pose de scellement d'un vitrage multiple (VM). This last characteristic makes it possible to produce a clear zone devoid of a soft layer (C) intended for the sealing application of a multiple glazing unit (VM).
Cette étape de réalisation d'une épargne (7), permet de produire une zone périphérique claire de qualité en bordure du second panneau (P2) à couche ou du vitrage feuilleté (Via) à couche externe, pour l'assemblage d'un vitrage multiple (VM) de qualité, en opposition d'un vitrage sur lequel la zone de scellement est réalisée à la meule, plus précisément réalisée à l'aide d'une torche et d'une opération de meulage. This step of making a saving (7) makes it possible to produce a clear peripheral zone of quality at the edge of the second layered panel (P2) or of the external layer laminated glazing (Via), for the assembly of a glazing unit multiple (VM) quality, in opposition to a glazing on which the sealing area is achieved by grinding, more specifically carried out using a torch and a grinding operation.
Il est entendu que le scotch d'épargne est retiré avant le collage des scellements (5). It is understood that the savings tape is removed before bonding the seals (5).
Selon une caractéristique complémentaire, selon les modes de réalisation précédents, dans lesquels une couche (C) tendre est déposée soit sur la face IV du second panneau (P2) préalablement à l'assemblage d'un premier vitrage feuilleté (Via) à couche externe, soit sur la face II d'un premier vitrage feuilleté (VI) sans couche, il est réalisé une unique étape de lavage de la couche (C) tendre préalablement à l'assemblage d'une contre face ou d'un second vitrage feuilleté (V2, Via, Vlb). According to a complementary characteristic, according to the preceding embodiments, in which a layer (C) is deposited on the face IV of the second panel (P2) before the assembly of a first laminated glazing (Via) with an outer layer , or on the face II of a first laminated glazing unit (VI) without a layer, a single washing step of the layer (C) is carried out prior to assembling a counterface or a second laminated glazing unit (V2, Via, Vlb).
Ainsi, le procédé selon l'invention permet la production de vitrage feuilleté (Via, Vlb) à couche, constituant un produit semi-fini de qualité, réduisant le taux de rebus inhérent aux manipulations récurrentes de panneaux à couche ou de vitrages feuilletés à couche. Thus, the method according to the invention allows the production of laminated glazing (Via, Vlb) layer, constituting a quality semi-finished product, reducing the rate of rebus inherent in the recurrent handling of layered panels or layered laminated glazing .
Contrairement aux feuilles de verre à couche de l'art antérieur, le procédé de la présente invention, permet non seulement un temps d'exposition à l'oxydation de la couche tendre à faible émissivité réduit et maîtrisé, de limiter la manipulation et les étapes de lavage des panneaux de verre à couche réduisant les risques d' endommager la couche tendre, mais également de ne pas se limiter aux couches tendres dites « trempables », à savoir composées d'un empilement de matériaux diélectriques et de matériaux à faible émissivité. Selon un mode d'exécution, la couche tendre ne comprend pas de matériaux diélectriques, à savoir est constituée de matériaux à faible émissivité. In contrast to the prior art layer glass sheets, the method of the present invention not only allows a time of exposure to oxidation of the reduced low-emissivity soft layer controlled, to limit the handling and the steps washing of the layered glass panels reducing the risk of damaging the soft layer, but also not to be limited to soft layers called "hardenable", namely composed of a stack of dielectric materials and low emissivity materials. According to one embodiment, the soft layer does not comprise dielectric materials, namely consists of low emissivity materials.
Selon un mode de réalisation préféré, au moins un des films intercalaires polymériques d'un vitrage feuilleté à couche est un film fonctionnel (4), à savoir de type thermochrome, électrochrome ou photovoltaïque de préférence thermochrome. According to a preferred embodiment, at least one of the polymeric interlayer films of a laminated laminated glazing unit is a functional film (4), namely of the thermochromic, electrochromic or photovoltaic type, preferably thermochromic type.
Notons qu'un vitrage fonctionnel thermochrome est un vitrage dynamique autonome, ne nécessitant pas de dépôt de couches conductrices et d'alimentation électrique. It should be noted that a thermochromic functional glazing is an independent dynamic glazing, which does not require conductive layer deposition and power supply.
Selon le mode de réalisation précédent, le procédé selon l'invention permet l'obtention d'une couche (C) à faible émissivité de qualité, sur un vitrage feuilleté (Via, Vlb) fonctionnel, qui est un produit, à haute valeur ajoutée, semi-fini ou un produit fini dans le cas d'un dépôt d'un film polymérique extérieur (6) sur la couche (C) tendre. According to the previous embodiment, the method according to the invention makes it possible to obtain a low-emissivity layer (C) of high quality, on a laminated glazing unit (Via, Vlb) which is a product with a high added value. , semi-finished or a finished product in the case of a deposit of an outer polymeric film (6) on the layer (C) soft.
Ces vitrages feuilletés (Via, Vlb) fonctionnels à couche de haute valeur ajoutée, permettent l'obtention d'un vitrage multiple (VM) fonctionnel de haute qualité, réduisant de manière significative le risque d'endommager la couche (C) tendre. These functional laminated glass panes (Via, Vlb) with a high added value layer, allow to obtain a high quality functional multiple glazing (VM), significantly reducing the risk of damaging the soft layer (C).
Le procédé selon l'invention permet également d'obtenir un produit fini dans lequel le risque de constater à postériori des rayures sur la couche (C) à faible émissivité est extrêmement réduit. The method according to the invention also makes it possible to obtain a finished product in which the risk of subsequently finding scratches on the low-emissivity layer (C) is extremely reduced.
Ajoutons que selon un mode de réalisation, le procédé comprend postérieurement au dépôt d'une couche (C) à faible émissivité sur le premier panneau de verre (PI), le positionnement d'au moins un film intercalaire polymérique (3), suivi du positionnement d'un film fonctionnel (4), éventuellement postérieurement et préalablement au dépôt de couches conductrices, et au placement du second panneau de verre (P2), l'ensemble étant placé sous presse pour assemblage, au vu de la production d'un simple vitrage feuilleté (Vlb) fonctionnel comprenant une couche (C) tendre interne. Let us add that according to one embodiment, the process comprises, after the deposition of a low-emissivity layer (C) on the first glass panel (PI), the positioning of at least one polymeric interlayer film (3), followed by positioning a functional film (4), possibly posteriorly and prior to the deposition of conductive layers, and placing the second glass panel (P2), the assembly being placed in a press for assembly, in view of the production of a single functional laminated glazing unit (Vlb) comprising an internal soft layer (C).
Il est entendu que selon des modes de réalisation connus, le dépôt de couches conductrices est réalisé soit de part et d'autre du film fonctionnel (4) de type électrochrome, soit par exemple sur une face du film fonctionnel (4) et sur la face intérieure du second panneau de verre (P2). It is understood that according to known embodiments, the deposition of conductive layers is carried out either on either side of the functional film (4) electrochromic type, for example on one side of the functional film (4) and on the inner face of the second glass panel (P2).
Selon un mode d'exécution préféré, le procédé comprend la production d'un double vitrage feuilleté fonctionnel, comprenant les étapes de mise sous presse du premier panneau (PI), d'un film intercalaire polymérique (3) et/ ou d'un film fonctionnel (4), de préférence thermochrome, et du second panneau (P2), l'ensemble étant placé sous presse pour assemblage. According to a preferred embodiment, the method comprises the production of a functional laminated double glazing, comprising the steps of pressing the first panel (PI), a polymeric interlayer film (3) and / or a functional film (4), preferably thermochromic, and the second panel (P2), the assembly being placed in a press for assembly.
Selon le mode d'exécution précédent, le procédé comprend une étape de dépôt d'une couche (C) à faible émissivité sur la face II du vitrage feuilleté (VI) sans couche préalablement assemblé, préférentiellement postérieurement à la réalisation d'une épargne (7). According to the preceding embodiment, the method comprises a step of depositing a low-emissivity layer (C) on the face II of the laminated glazing unit (VI) without a previously assembled layer, preferably after the realization of a savings ( 7).
Selon le mode d'exécution précédent, le procédé comprend en outre les étapes conventionnelles de collage de scellement (5) et la réalisation de barrières d'étanchéité. According to the previous embodiment, the method further comprises the conventional steps of sealing bonding (5) and the production of sealing barriers.
Précisons qu'une contre face, selon des modes de réalisation sont un simple vitrage, un vitrage feuilleté (Via) à couche externe, un vitrage feuilleté (Vlb) à couche interne ou un vitrage feuilleté (V2) conventionnel, sans sortir du cadre de l'invention. It should be noted that a counter-face, according to embodiments, is a single glazing unit, a laminated glazing unit (Via) with an outer layer, a laminated glazing unit (Vlb) with an internal layer or a conventional laminated glazing unit (V2), without departing from the scope of the invention.

Claims

REVENDICATIONS
1. Procédé de traitement et d'assemblage de vitrage feuilleté (Via, Vlb) et/ ou de vitrage multiple feuilleté (VM) à partir de feuilles de verre de type float, comprenant les étapes suivantes : a) Prise en charge d'au moins une première feuille de verre (Fl) et d'une seconde feuille de verre (F2), b) Découpe et façonnage de la première et seconde feuille de verre (Fl, F2) pour l'obtention de panneaux de verre (PI, P2), c) Dépôt d'une couche (C) à faible émissivité par pulvérisation sous vide sur l'une des faces de l'un des panneaux de verre (PI, P2), d) Assemblage des panneaux de verre (PI, P2) en vitrage feuilleté (Via, Vlb), ladite couche (C) étant positionnée entre les deux panneaux de verre (PI, P2) par l'intermédiaire d'au moins un film intercalaire polymérique (3, 4) ou à l'extérieur du vitrage feuilleté (VI) en face II. A method of processing and assembling laminated glazing (Via, Vlb) and / or laminated multiple glazing (VM) from float glass sheets, comprising the following steps: a) Supporting from minus a first glass sheet (F1) and a second glass sheet (F2), b) Cutting and shaping the first and second glass sheets (F1, F2) to obtain glass panels (PI, P2), c) Depositing a low emissivity layer (C) by vacuum spraying on one of the faces of one of the glass panels (PI, P2), d) Assembling the glass panels (PI, P2) in laminated glazing (Via, Vlb), said layer (C) being positioned between the two glass panels (PI, P2) via at least one polymeric interlayer film (3, 4) or outside the laminated glazing (VI) on the face II.
2. Procédé selon la revendication 1, caractérisé en ce que postérieurement aux étapes de découpe et de façonnage, et préalablement au dépôt de la couche (C) à faible émissivité, les panneaux de verre (PI, P2) subissent une étape de traitement thermique de renforcement mécanique suivi d'une trempe. 2. Method according to claim 1, characterized in that subsequent to the cutting and shaping steps, and prior to the deposition of the low emissivity layer (C), the glass panels (PI, P2) undergo a heat treatment step mechanical reinforcement followed by tempering.
3. Procédé selon la revendication 1 ou 2, caractérisé en ce qu'il comprend des étapes de perçage des panneaux de verre (PI, PI) préalablement à l'étape de dépôt de la couche (C) à faible émissivité. 3. Method according to claim 1 or 2, characterized in that it comprises steps of drilling the glass panels (PI, PI) prior to the step of depositing the layer (C) low emissivity.
4. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il comprend une unique étape de lavage de la couche (C) à faible émissivité préalablement à l'assemblage de l'un des panneaux de verre (PI, P2), d'un film polymérique extérieur (6), d'une contre face ou d'un contre vitrage feuilleté (V2, Via, Vlb). 4. Method according to any one of the preceding claims, characterized in that it comprises a single step of washing the layer (C) low emissivity prior to the assembly of one of the glass panels (PI, P2 ), an outer polymeric film (6), a counterface or a laminated counter-glazing (V2, Via, Vlb).
5. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il comprend une étape de réalisation d'une épargne (7) en périphérie extérieure de la face destinée à recevoir le dépôt de la couche (C) à faible émissivité. 5. Method according to any one of the preceding claims, characterized in that it comprises a step of realizing savings (7) in outer periphery of the face intended to receive the deposit of the layer (C) low emissivity.
6. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que l'étape d'assemblage en vitrage feuilleté (Via) des panneaux de verre (PI, P2) par l'intermédiaire d'au moins un film intercalaire polymérique (3, 4), est réalisée préalablement à l'étape de dépôt de la couche (C) à faible émissivité. 6. Method according to any one of the preceding claims, characterized in that the laminated glazing assembly step (Via) of the glass panels (PI, P2) via at least one polymeric interlayer film ( 3, 4), is performed prior to the deposition step of the layer (C) low emissivity.
7. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce qu'au moins un des films intercalaires polymériques est un film fonctionnel (4) de type thermochrome, électrochrome ou photovoltaïque, de préférence thermochrome. 7. Method according to any one of the preceding claims, characterized in that at least one of the polymeric interlayer films is a functional film (4) of thermochromic, electrochromic or photovoltaic type, preferably thermochromic.
8. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que la couche (C) à faible émissivité est directement déposée sur la surface d'un panneau de verre (PI, P2). 8. Method according to any one of the preceding claims, characterized in that the layer (C) low emissivity is directly deposited on the surface of a glass panel (PI, P2).
EP19700846.9A 2018-01-24 2019-01-23 Method for treating and assembling glazing comprising a low emissivity layer Withdrawn EP3743275A1 (en)

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FR1850537A FR3077028B1 (en) 2018-01-24 2018-01-24 GLASS TREATMENT AND ASSEMBLY PROCESS INCLUDING A LOW EMISSIVITY LAYER
PCT/EP2019/051634 WO2019145361A1 (en) 2018-01-24 2019-01-23 Method for treating and assembling glazing comprising a low emissivity layer

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CA1116069A (en) 1978-01-05 1982-01-12 Richard R. Dahlen Solar control film having insulative properties
AU585426B2 (en) 1986-01-29 1989-06-15 Pilkington Brothers Plc Coated glass
FR2701475B1 (en) 1993-02-11 1995-03-31 Saint Gobain Vitrage Int Glass substrates coated with a stack of thin layers, application to glazing with infrared reflection properties and / or properties in the field of solar radiation.
US5942338A (en) * 1996-04-25 1999-08-24 Ppg Industries Ohio, Inc. Coated articles
EP1375445A1 (en) 2002-06-17 2004-01-02 Glaverbel Process for manufacturing a glazing having a multilayered coating
FR2895781B1 (en) * 2005-12-29 2014-10-10 Saint Gobain LIGHT STRUCTURE COMPRISING AT LEAST ONE ELECTROLUMINESCENT DIODE, ITS MANUFACTURE AND ITS APPLICATIONS
FR2962682B1 (en) * 2010-07-16 2015-02-27 Saint Gobain ELECTROCHEMICAL WINDOW WITH ELECTRONICALLY CONTROLLED OPTICAL AND / OR ENERGY PROPERTIES
JP2012189683A (en) 2011-03-09 2012-10-04 Nitto Denko Corp Infrared ray reflection film
JP2013145358A (en) 2011-12-16 2013-07-25 Nitto Denko Corp Infrared-reflecting film
FR3030496B1 (en) 2014-12-17 2016-12-30 Saint Gobain THERMAL CONTROL GLAZING WITH PROTECTIVE POLYMER FILM
CN106526854B (en) * 2016-11-15 2019-02-01 福耀玻璃工业集团股份有限公司 One kind being capable of electrically heated automobile head-up-display system

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