EP4320041A1 - Multiple glazing of a pressurized container, having a film of adhesive and solar-protection polymer material - Google Patents

Multiple glazing of a pressurized container, having a film of adhesive and solar-protection polymer material

Info

Publication number
EP4320041A1
EP4320041A1 EP22715132.1A EP22715132A EP4320041A1 EP 4320041 A1 EP4320041 A1 EP 4320041A1 EP 22715132 A EP22715132 A EP 22715132A EP 4320041 A1 EP4320041 A1 EP 4320041A1
Authority
EP
European Patent Office
Prior art keywords
slab
glazing
multiple glazing
film
main surface
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP22715132.1A
Other languages
German (de)
French (fr)
Inventor
Adrien DUFFOUR
Eric LINTINGRE
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Saint Gobain Glass France SAS
Compagnie de Saint Gobain SA
Original Assignee
Saint Gobain Glass France SAS
Compagnie de Saint Gobain SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Saint Gobain Glass France SAS, Compagnie de Saint Gobain SA filed Critical Saint Gobain Glass France SAS
Publication of EP4320041A1 publication Critical patent/EP4320041A1/en
Pending 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/40—Layered products comprising a layer of synthetic resin comprising polyurethanes
    • 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
    • E06B3/663—Elements for spacing panes
    • E06B3/66309—Section members positioned at the edges of the glazing unit
    • E06B3/66342—Section members positioned at the edges of the glazing unit characterised by their sealed connection to the panes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/10009—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets
    • B32B17/10036—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets comprising two outer glass sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/10165—Functional features of the laminated safety glass or glazing
    • B32B17/10174—Coatings of a metallic or dielectric material on a constituent layer of glass or polymer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/1055—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer
    • B32B17/10706—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer being photo-polymerized
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/1055—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer
    • B32B17/10761—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer containing vinyl acetal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/1055—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer
    • B32B17/1077—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer containing polyurethane
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/1055—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer
    • B32B17/10788—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer containing ethylene vinylacetate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/1055—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer
    • B32B17/10798—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer containing silicone
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/308—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising acrylic (co)polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C1/00—Fuselages; Constructional features common to fuselages, wings, stabilising surfaces or the like
    • B64C1/14—Windows; Doors; Hatch covers or access panels; Surrounding frame structures; Canopies; Windscreens accessories therefor, e.g. pressure sensors, water deflectors, hinges, seals, handles, latches, windscreen wipers
    • B64C1/1476—Canopies; Windscreens or similar transparent elements
    • B64C1/1492—Structure and mounting of the transparent elements in the window or windscreen
    • 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
    • E06B3/677—Evacuating or filling the gap between the panes ; Equilibration of inside and outside pressure; Preventing condensation in the gap between the panes; Cleaning the gap between the panes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2333/00—Polymers of unsaturated acids or derivatives thereof
    • B32B2333/04—Polymers of esters
    • B32B2333/12—Polymers of methacrylic acid esters, e.g. PMMA, i.e. polymethylmethacrylate
    • 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
    • B32B2605/00—Vehicles
    • B32B2605/18—Aircraft

Definitions

  • the invention relates to a multiple glazing delimiting two spaces with variable pressures independently of each other, in particular pressures which may differ more or less from each other.
  • a typical example is the passenger cabin window of a commercial aircraft or business jet, cabin subject to pressurization while the aircraft can move at relatively high altitude, under lower pressure than on the ground.
  • This multiple glazing comprises a thick outer slab which mechanically absorbs the different pressures inside and outside the enclosure, in particular by bending, and a thinner inner slab mounted parallel to the outer slab at a certain distance from that -ci, delimiting an intermediate air gap.
  • the latter is connected to the interior atmosphere of the enclosure, by a through hole in the interior slab or the assembly joint of the multiple glazing.
  • the inner slab is sized to replace the outer slab if the latter breaks, to absorb the mechanical stresses due to pressure differences.
  • Face 1 F1 is in contact with the outside atmosphere
  • face 4 F4 with the volume of the containment.
  • the object of the invention is to provide multiple glazing of the type described above with a solar protection function. It is known in particular from document CA 2 763 423 A1 to coat one side of multiple aircraft glazing with a stack of thin solar protection layers, such as a silver tri-layer. Although this coating is not excluded by this document on face 2 F2, 3 F3 or 4 F4, the example of the document describes a coating on face 1 F1. It is moreover generally recognized that the positioning of a solar protection coating in a glazing is favorable as far upstream as possible from the solar radiation, a positioning facing 1 F1 therefore being the best for satisfying this criterion. There nevertheless remains a need to provide multiple glazing with a solar protection function in a way that is easier to implement, by allowing easy adjustment of the degree of filtration of solar radiation.
  • a multiple glazing for delimiting two spaces with variable pressure difference, in particular an enclosure subjected to pressurization, comprising at least a first transparent slab intended to be in contact with the external atmosphere in the mounting position, and separated from a second transparent slab by an air gap, by means of a mounting joint in which a peripheral part of the multiple glazing is embedded, characterized in that it comprises at least one film of polymeric material, one main surface of which is functionalized to bring it into and keep it in adhesion with a substrate, and which comprises a layer or a stack of sunscreen layers, such a film of polymeric material being in adhesion to the main surface of the first slab opposite the second slab and/or on one of the two main surfaces of the second slab or both and/or the first slab is a vit laminated rage and such a film of polymeric material being in adhesion on a main surface internal to the laminated structure, of a constituent of the laminated glazing.
  • a sunscreen adhesive film is adhered to face 2 F2, face 3 F3, face 4 F4 of the multiple glazing, or in the case where the first slab is laminated glazing, on a main face internal to the laminated structure (that is to say at a level of the thickness of the intermediate multiple glazing between face 1 F1 and face 2 F2). Thanks to the invention, the solar protection film(s) can easily be removed, replaced, in order to modify, adjust and adapt the degree of filtration of solar radiation, the solar factor, even in the event of damage to the film.
  • a film of polymer material adheres to the main surface of the second slab facing the first slab.
  • the film is then not subjected to the bending and mechanical stresses of the first slab which, alone, is subjected to pressurization, unlike the second slab. Additionally, solar radiation encounters the sunscreen layer or stack first and then the film adhesive, which is preferred.
  • a film of polymeric material adheres to the main surface of the second slab opposite the first slab.
  • the film is not subjected to the bending and mechanical stresses of the first slab.
  • the film can be accessible, if necessary, in direct contact with the user, therefore less well protected.
  • the first slab is a laminated glazing and a film of polymer material being in adhesion on a main surface internal to the laminated structure, of a constituent of the laminated glazing.
  • the solar protection film is closer to solar radiation than in the first, and even more the second variant, it is here subjected to the bending and mechanical stresses of the first laminated slab, subjected to pressurization.
  • the film is first glued to a sheet of glass or polymeric material, then this sheet is laminated.
  • said main surface internal to the laminated structure, of a constituent be oriented towards the outer surface of the multiple glazing consisting of the first slab and not towards the air gap and the second slab, so that the solar radiation first encounters the solar protection layer or stack, before the adhesive layer of the film.
  • a film of polymer material adheres to the main surface of the first slab facing the second slab.
  • the film undergoes the strong mechanical stresses of the first slab, and its adhesive layer receives the solar radiation before its solar protection coating.
  • the first slab has a thickness of between 1.5 and 20, preferably at most equal to 18, particularly preferably 16 mm. These relatively large thicknesses may be necessary to resist pressure differences on either side of the first slab, in particular to limit bending and the occurrence of heaving. This thickness is proportional to the main surface of the first slab.
  • the second slab has a thickness comprised between 2 and 6 mm, preferably between 3 and 5 mm.
  • the first slab is chosen from a sheet of polymer material such as poly(methyl methacrylate) (PMMA) in particular stretched, a sheet of glass such as soda-lime, aluminosilicate, borosilicate, optionally hardened, thermally toughened or chemically reinforced, and laminated glazing of at least two sheets of polymer material and/or of glass bonded together by means of at least one intermediate adhesive layer such as polyvinyl butyral (PVB), thermoplastic polyurethane (TPU), or ethylene-vinyl acetate copolymer (EVA) , silicone, cross-linked polyurethane or cross-linked polymethacrylates. Silicones can be used especially if a reinforced temperature resistance is sought.
  • PMMA poly(methyl methacrylate)
  • a sheet of glass such as soda-lime, aluminosilicate, borosilicate, optionally hardened, thermally toughened or chemically reinforced
  • laminated glazing of at least two sheets of polymer material and/or of glass bonded
  • the total thickness of polymer material is between 7 and 20, and in increasing order of preference, 18 and 16 mm.
  • the first slab is a laminate of several sheets of glass, possibly a sheet of glass, the total thickness of glass is between 1.5 and 5 mm.
  • the second tile is acrylic, such as stretched PMMA.
  • the second slab or the mounting joint comprises a through hole of small diameter controlled, so that the air gap is at the same pressure as the volume delimited by the multiple glazing on the side opposite the first slab.
  • a third constituent forms the main surface of the multiple glazing opposite the first slab, this third constituent being a sheet of polymer material separated from the second slab by another air gap.
  • This third constituent is in contact with the interior volume of the passenger cabin, or equivalent.
  • dust cover or “cover protection”.
  • said third constituent is a sheet of polycarbonate (PC) or equivalent and supports an electrochromic function. This function allows the window to be concealed by electrically energizing the electrochromic layer.
  • the invention also relates to the application of multiple glazing as described above, as glazing of a volume subjected to pressurization, in particular as aeronautical glazing, in particular as commercial aircraft glazing or jet glass. case, especially as a passenger cabin window.
  • FIG. 1 is a cross section of said fourth variant of the multiple glazing of the invention
  • FIG. 2 is a cross section of said first variant of the multiple glazing of the invention.
  • FIG. 3 is a partial cross section of said third variant of the multiple glazing of the invention.
  • a passenger cabin window 1 of a commercial aircraft consists of a first slab 2 of stretched PMMA with a thickness of between 9.5 and 11 mm, and a second slab 4 of stretched PMMA 4mm thick.
  • the first slab 2 and the second slab 4 are embedded at their periphery in a silicone mounting joint 6, at a certain distance from each other constituting an air gap 3.
  • the thickness of the first slab 2 is a function of the value of its main surface, to enable it to resist the pressurization of the cabin on the side of the second slab 4, by limiting its bending in the event of a variation in the pressure difference. on its two main surfaces.
  • a small through hole, not shown, is made in the second slab 4, so that the air gap 3 is at cabin pressure on the side of the second slab 4, and the first slab 2 alone assumes the required mechanical resistance function. by the pressure differences on either side of the window 1.
  • a poly (ethylene terephthalate) (PET) sunscreen film 5 has been provided on one side with a layer of adhesive, by which it is glued to the main surface of the first tile 2 facing the second tile 4
  • PET poly(ethylene terephthalate)
  • the film 5 is provided with a stack of thin sunscreen layers as described in particular in document US 2018 362 395 A1.
  • the porthole 1 of FIG. 2 differs from that of FIG. 1 in that the film 5 is glued to the main surface of the second slab 4 facing the first slab 2.
  • the solar protection stack of the film 5 is further from the source of solar radiation than according to FIG. to the first slab 2), and moreover, the solar radiation first encounters the solar protection stack of the film 5, before its adhesive layer, which promotes the durability of the film 5.
  • the first slab 2 consists of a first outer sheet 21 of stretched PMMA laminated to a second sheet 23 inside the multiple glazing 1 of stretched PMMA, by means of an intermediate adhesive layer 22 of polyurethane thermoplastic (TPU).
  • TPU polyurethane thermoplastic
  • the sunscreen film 5 is glued to the sheet 23 before the lamination.
  • the solar protection stack is further upstream with respect to the source of solar radiation than in the embodiments of FIGS. 1 and 2, and the solar radiation indeed encounters the solar protection stack of the film 5 before its adhesive layer.
  • the embodiment represented therein is preferred because the film 5 of FIG. mechanical due to cabin pressurization.

Landscapes

  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Laminated Bodies (AREA)
  • Joining Of Glass To Other Materials (AREA)
  • Adhesives Or Adhesive Processes (AREA)

Abstract

The invention relates to a multiple glazing (1) for delimiting two spaces with a variable difference in pressure, comprising at least one first outer slab (2), separated from a second slab (4) by an air gap (3), by means of a sealant (6), at least one polymer film (5), a main surface of which is adhesive, and which comprises a solar-protection layer or stack, a film (5) being stuck to the main surface of the first slab (2) facing the second slab (4) and/or to one of the two main surfaces of the second slab (4) or both and/or the first slab (2) being a laminated glazing (21, 22, 23) and a film (5) being stuck to an internal main surface of the laminated structure; and to the application thereof as a pressurized aircraft window.

Description

Description Description
Titre : Vitrage multiple d’enceinte pressurisée ayant un film de matériau polymère adhésif et antisolaire Title: Multiple glazing of pressurized enclosure having a film of adhesive and sunscreen polymer material
L’invention est relative à un vitrage multiple délimitant deux espaces à pressions variables indépendamment l’une de l’autre, notamment des pressions pouvant différer plus ou moins l’une de l’autre. Un exemple type en est le hublot de cabine passagers d’un avion commercial ou jet d’affaire (en anglais : business jet), cabine soumise à une pressurisation alors que l’avion peut se déplacer à relativement haute altitude, sous pression plus faible qu’au sol. The invention relates to a multiple glazing delimiting two spaces with variable pressures independently of each other, in particular pressures which may differ more or less from each other. A typical example is the passenger cabin window of a commercial aircraft or business jet, cabin subject to pressurization while the aircraft can move at relatively high altitude, under lower pressure than on the ground.
Ce vitrage multiple comporte une dalle extérieure épaisse qui absorbe mécaniquement les pressions différentes à l’intérieur et à l’extérieur de l’enceinte, notamment par flexion, et une dalle intérieure plus fine montée parallèlement à la dalle extérieure à une certaine distance de celle-ci, délimitant une lame d’air intermédiaire. Cette dernière est reliée à l’atmosphère intérieure de l’enceinte, par un trou traversant dans la dalle intérieure ou le joint de montage du vitrage multiple. D’autre part, la dalle intérieure est dimensionnée pour se substituer à la dalle extérieure si celle-ci se casse, pour absorber les sollicitations mécaniques dues aux différences de pression. This multiple glazing comprises a thick outer slab which mechanically absorbs the different pressures inside and outside the enclosure, in particular by bending, and a thinner inner slab mounted parallel to the outer slab at a certain distance from that -ci, delimiting an intermediate air gap. The latter is connected to the interior atmosphere of the enclosure, by a through hole in the interior slab or the assembly joint of the multiple glazing. On the other hand, the inner slab is sized to replace the outer slab if the latter breaks, to absorb the mechanical stresses due to pressure differences.
Pour un vitrage multiple ayant une dalle extérieure et une dalle intérieure, nous conviendrons de numéroter les quatre faces correspondantes de 1 à 4 en partant de l’extérieur. La face 1 F1 est en contact avec l’atmosphère extérieure, la face 4 F4 avec le volume de l’enceinte. For multiple glazing with an exterior slab and an interior slab, we will agree to number the four corresponding faces from 1 to 4 starting from the exterior. Face 1 F1 is in contact with the outside atmosphere, face 4 F4 with the volume of the containment.
L’invention a pour objectif de doter un vitrage multiple du type décrit ci-dessus d’une fonction antisolaire. Il est connu notamment du document CA 2 763 423 A1 de revêtir une face du vitrage multiple d’avion d’un empilement de couches minces antisolaire, tel que tri- couche argent. Bien que ce revêtement ne soit pas exclu par ce document en face 2 F2, 3 F3 ou 4 F4, l’exemple du document décrit un revêtement en face 1 F1. Il est d’ailleurs généralement reconnu que le positionnement d’un revêtement antisolaire dans un vitrage est favorable le plus en amont possible du rayonnement solaire, un positionnement en face 1 F1 étant donc le meilleur pour satisfaire ce critère. Il subsiste néanmoins un besoin de pourvoir un vitrage multiple d’une fonction antisolaire d’une manière plus facile à mettre en oeuvre, en permettant l’ajustage aisé du degré de filtration du rayonnement solaire. Cet objectif est atteint par l’invention qui, en conséquence, a pour objet un vitrage multiple pour délimiter deux espaces à différence de pressions variable, notamment une enceinte soumise à une pressurisation, comprenant au moins une première dalle transparente destinée à être en contact avec l’atmosphère extérieure en position de montage, et séparée d’une deuxième dalle transparente par une lame d’air, au moyen d’ un joint de montage dans lequel une partie périphérique du vitrage multiple est enchâssée, caractérisé en ce qu’il comprend au moins un film de matériau polymère dont une surface principale est fonctionnalisée pour sa mise et son maintien en adhésion avec un substrat, et qui comprend une couche ou un empilement de couches antisolaire, un tel film de matériau polymère étant en adhésion sur la surface principale de la première dalle en regard de la deuxième dalle et/ou sur l’une des deux surfaces principales de la deuxième dalle ou les deux et/ou la première dalle est un vitrage feuilleté et un tel film de matériau polymère étant en adhésion sur une surface principale interne à la structure feuilletée, d’un constituant du vitrage feuilleté. The object of the invention is to provide multiple glazing of the type described above with a solar protection function. It is known in particular from document CA 2 763 423 A1 to coat one side of multiple aircraft glazing with a stack of thin solar protection layers, such as a silver tri-layer. Although this coating is not excluded by this document on face 2 F2, 3 F3 or 4 F4, the example of the document describes a coating on face 1 F1. It is moreover generally recognized that the positioning of a solar protection coating in a glazing is favorable as far upstream as possible from the solar radiation, a positioning facing 1 F1 therefore being the best for satisfying this criterion. There nevertheless remains a need to provide multiple glazing with a solar protection function in a way that is easier to implement, by allowing easy adjustment of the degree of filtration of solar radiation. This objective is achieved by the invention which, consequently, relates to a multiple glazing for delimiting two spaces with variable pressure difference, in particular an enclosure subjected to pressurization, comprising at least a first transparent slab intended to be in contact with the external atmosphere in the mounting position, and separated from a second transparent slab by an air gap, by means of a mounting joint in which a peripheral part of the multiple glazing is embedded, characterized in that it comprises at least one film of polymeric material, one main surface of which is functionalized to bring it into and keep it in adhesion with a substrate, and which comprises a layer or a stack of sunscreen layers, such a film of polymeric material being in adhesion to the main surface of the first slab opposite the second slab and/or on one of the two main surfaces of the second slab or both and/or the first slab is a vit laminated rage and such a film of polymeric material being in adhesion on a main surface internal to the laminated structure, of a constituent of the laminated glazing.
Conformément à l’invention, un film adhésif antisolaire est mis en adhésion sur la face 2 F2, la face 3 F3, la face 4 F4 du vitrage multiple, ou dans le cas où la première dalle est un vitrage feuilleté, sur une face principale interne à la structure feuilletée (c’est-à-dire à un niveau de l’épaisseur du vitrage multiple intermédiaire entre la face 1 F1 et la face 2 F2). Grâce à l’invention, le ou les films antisolaire(s) peut(peuvent) facilement être retirés, remplacés, afin de modifier, régler et adapter le degré de filtration du rayonnement solaire, le facteur solaire, voire en cas d’endommagement du film. In accordance with the invention, a sunscreen adhesive film is adhered to face 2 F2, face 3 F3, face 4 F4 of the multiple glazing, or in the case where the first slab is laminated glazing, on a main face internal to the laminated structure (that is to say at a level of the thickness of the intermediate multiple glazing between face 1 F1 and face 2 F2). Thanks to the invention, the solar protection film(s) can easily be removed, replaced, in order to modify, adjust and adapt the degree of filtration of solar radiation, the solar factor, even in the event of damage to the film.
Selon une première variante, la plus préférée de l’invention, un film de matériau polymère est en adhésion sur la surface principale de la deuxième dalle en regard de la première dalle. Le film n’est alors pas soumis aux flexions et sollicitations mécaniques de la première dalle qui, seule, est soumise à la pressurisation, contrairement à la deuxième dalle. De plus, le rayonnement solaire rencontre la couche ou l’empilement antisolaire d’abord, puis l’adhésif du film, ce qui est préféré. According to a first variant, the most preferred of the invention, a film of polymer material adheres to the main surface of the second slab facing the first slab. The film is then not subjected to the bending and mechanical stresses of the first slab which, alone, is subjected to pressurization, unlike the second slab. Additionally, solar radiation encounters the sunscreen layer or stack first and then the film adhesive, which is preferred.
Conformément à une seconde variante à un degré de préférence moindre que la première, un film de matériau polymère est en adhésion sur la surface principale de la deuxième dalle opposée à la première dalle. Comme pour la première variante, le film n’est pas soumis aux flexions et sollicitations mécaniques de la première dalle. Cependant, par rapport à la première variante, il est moins favorable que le film soit en aval, plus éloigné du rayonnement solaire, qui de plus rencontre d’abord l’adhésif du film avant la couche ou l’empilement antisolaire, ce qui, à nouveau, est défavorable. De surcroît, le film peut être accessible, le cas échéant, au contact direct de l’utilisateur, donc moins bien protégé. According to a second variant to a lesser degree of preference than the first, a film of polymeric material adheres to the main surface of the second slab opposite the first slab. As for the first variant, the film is not subjected to the bending and mechanical stresses of the first slab. However, compared to the first variant, it is less favorable for the film to be downstream, farther from the solar radiation, which moreover first encounters the adhesive of the film before the layer or the antisolar stack, which again is unfavorable. In addition, the film can be accessible, if necessary, in direct contact with the user, therefore less well protected.
Selon une troisième variante un peu moins préférée que la seconde, la première dalle est un vitrage feuilleté et un film de matériau polymère étant en adhésion sur une surface principale interne à la structure feuilletée, d’un constituant du vitrage feuilleté. Bien que le film antisolaire soit plus proche du rayonnement solaire que dans la première, et encore plus la seconde variante, il est ici soumis aux flexions et contraintes mécaniques de la première dalle feuilletée, soumise à la pressurisation. Le film est en premier lieu collé à une feuille de verre ou matériau polymère, puis cette feuille est feuilletée. Dans cette troisième variante, on préfère que ladite surface principale interne à la structure feuilletée, d’un constituant soit orientée vers la surface extérieure du vitrage multiple constituée par la première dalle et non vers la lame d’air et la deuxième dalle, de sorte que le rayonnement solaire rencontre d’abord la couche ou l’empilement antisolaire, avant la couche adhésive du film. According to a third variant a little less preferred than the second, the first slab is a laminated glazing and a film of polymer material being in adhesion on a main surface internal to the laminated structure, of a constituent of the laminated glazing. Although the solar protection film is closer to solar radiation than in the first, and even more the second variant, it is here subjected to the bending and mechanical stresses of the first laminated slab, subjected to pressurization. The film is first glued to a sheet of glass or polymeric material, then this sheet is laminated. In this third variant, it is preferred that said main surface internal to the laminated structure, of a constituent be oriented towards the outer surface of the multiple glazing consisting of the first slab and not towards the air gap and the second slab, so that the solar radiation first encounters the solar protection layer or stack, before the adhesive layer of the film.
Selon une quatrième variante également préférée à la troisième, un film de matériau polymère est en adhésion sur la surface principale de la première dalle en regard de la deuxième dalle. Le film subit les sollicitations mécaniques fortes de la première dalle, et sa couche adhésive reçoit le rayonnement solaire avant son revêtement antisolaire. According to a fourth variant also preferred to the third, a film of polymer material adheres to the main surface of the first slab facing the second slab. The film undergoes the strong mechanical stresses of the first slab, and its adhesive layer receives the solar radiation before its solar protection coating.
Ces quatre variantes sont parfaitement viables. Par contre il n’est pas envisageable de coller le film antisolaire en face 1 F1 du vitrage multiple, c’est-à-dire au contact de l’atmosphère extérieure, à cause des contraintes aérodynamiques. These four variants are perfectly viable. On the other hand, it is not possible to stick the solar protection film on face 1 F1 of the multiple glazing, i.e. in contact with the outside atmosphere, because of aerodynamic constraints.
De préférence, la première dalle a une épaisseur comprise entre 1 ,5 et 20, de préférence au plus égale à 18, de manière particulièrement préférée à 16 mm. Ces épaisseurs relativement grandes peuvent être nécessaires pour résister aux différences de pression de part et d’autre de la première dalle, notamment pour en limiter la flexion et l’occurrence de déchaussement. Cette épaisseur est proportionnelle à la surface principale de la première dalle. Preferably, the first slab has a thickness of between 1.5 and 20, preferably at most equal to 18, particularly preferably 16 mm. These relatively large thicknesses may be necessary to resist pressure differences on either side of the first slab, in particular to limit bending and the occurrence of heaving. This thickness is proportional to the main surface of the first slab.
De préférence, la deuxième dalle a une épaisseur comprise entre 2 et 6 mm, de préférence entre 3 et 5 mm. Preferably, the second slab has a thickness comprised between 2 and 6 mm, preferably between 3 and 5 mm.
De préférence, la première dalle est choisie parmi une feuille de matériau polymère tel que poly(méthacrylate de méthyle) (PMMA) notamment étiré, une feuille de verre tel que sodocalcique, aluminosilicate, borosilicate, éventuellement durci, trempé thermiquement ou renforcé chimiquement, et un vitrage feuilleté d’au moins deux feuilles de matériau polymère et/ou de verre collées l’une à l’autre au moyen d’au moins une couche adhésive intercalaire telle que de polyvinylbutyral (PVB), polyuréthane thermoplastique (TPU), ou copolymère éthylène - acétate de vinyle (EVA), silicone, polyuréthane réticulé ou polyméthacrylates réticulés. Les silicones peuvent être utilisés surtout si l’on cherche une tenue en température renforcée. On peut aussi feuilleter des plis de verre et/ou de matériau polymère en coulant une résine liquide entre deux substrats. Ce sont des résines (isocyanate + polyol) qui polymérisent pour donner un intercalaire polymère de type polyuréthane réticulé, ou des résines (méthacrylates + catalyseur thermique ou UV) qui polymérisent pour donner un intercalaire polymère de type polyméthacrylates réticulés. Preferably, the first slab is chosen from a sheet of polymer material such as poly(methyl methacrylate) (PMMA) in particular stretched, a sheet of glass such as soda-lime, aluminosilicate, borosilicate, optionally hardened, thermally toughened or chemically reinforced, and laminated glazing of at least two sheets of polymer material and/or of glass bonded together by means of at least one intermediate adhesive layer such as polyvinyl butyral (PVB), thermoplastic polyurethane (TPU), or ethylene-vinyl acetate copolymer (EVA) , silicone, cross-linked polyurethane or cross-linked polymethacrylates. Silicones can be used especially if a reinforced temperature resistance is sought. It is also possible to laminate plies of glass and/or polymer material by pouring a liquid resin between two substrates. These are resins (isocyanate+polyol) which polymerize to give a polymer interlayer of the crosslinked polyurethane type, or resins (methacrylates+thermal or UV catalyst) which polymerize to give a polymer interlayer of the crosslinked polymethacrylate type.
Quand la première dalle est une feuille de matériau polymère, éventuellement un feuilleté de plusieurs feuilles de matériau polymère, l’épaisseur totale de matériau polymère est comprise entre 7 et 20, et par ordre de préférence croissant, 18 et 16 mm. Quand la première dalle est un feuilleté de plusieurs feuilles de verre, éventuellement une feuille de verre, l’épaisseur totale de verre est comprise entre 1 ,5 et 5 mm. When the first tile is a sheet of polymer material, possibly a laminate of several sheets of polymer material, the total thickness of polymer material is between 7 and 20, and in increasing order of preference, 18 and 16 mm. When the first slab is a laminate of several sheets of glass, possibly a sheet of glass, the total thickness of glass is between 1.5 and 5 mm.
De préférence, la deuxième dalle est acrylique, telle qu’en PMMA étiré. Preferably, the second tile is acrylic, such as stretched PMMA.
De préférence, la deuxième dalle ou le joint de montage comprend un trou traversant de petit diamètre contrôlé, de sorte que la lame d’air soit à la même pression que le volume délimité par le vitrage multiple du côté opposé à la première dalle. Preferably, the second slab or the mounting joint comprises a through hole of small diameter controlled, so that the air gap is at the same pressure as the volume delimited by the multiple glazing on the side opposite the first slab.
De préférence, un troisième constituant forme la surface principale du vitrage multiple opposée à la première dalle, ce troisième constituant étant une feuille de matériau polymère séparée de la deuxième dalle par une autre lame d’air. Ce troisième constituant est en contact avec le volume intérieur de la cabine passager, ou équivalent. En anglais il est désigné par les termes de « dust cover », ou « cover protection ». De manière particulièrement préférée, ledit troisième constituant est une feuille de polycarbonate (PC) ou équivalent et supporte une fonction électrochrome. Cette fonction permet d’occulter le hublot par une mise sous tension électrique de la couche électrochrome. Preferably, a third constituent forms the main surface of the multiple glazing opposite the first slab, this third constituent being a sheet of polymer material separated from the second slab by another air gap. This third constituent is in contact with the interior volume of the passenger cabin, or equivalent. In English it is referred to as "dust cover", or "cover protection". Particularly preferably, said third constituent is a sheet of polycarbonate (PC) or equivalent and supports an electrochromic function. This function allows the window to be concealed by electrically energizing the electrochromic layer.
L’invention a également pour objet l’application d’un vitrage multiple tel que décrit ci- dessus, comme vitrage d’un volume soumis à une pressurisation, en particulier comme vitrage aéronautique, notamment comme vitrage d’avion commercial ou de jet d’affaire, tout particulièrement comme hublot de cabine passager. The invention also relates to the application of multiple glazing as described above, as glazing of a volume subjected to pressurization, in particular as aeronautical glazing, in particular as commercial aircraft glazing or jet glass. case, especially as a passenger cabin window.
L’invention est maintenant illustrée par la description suivante des figures en annexe dans lesquelles [Fig. 1] est une coupe transversale de ladite quatrième variante du vitrage multiple de l’invention ; The invention is now illustrated by the following description of the appended figures in which [Fig. 1] is a cross section of said fourth variant of the multiple glazing of the invention;
[Fig. 2] est une coupe transversale de ladite première variante du vitrage multiple de l’invention ; et [Fig. 2] is a cross section of said first variant of the multiple glazing of the invention; and
[Fig. 3] est une coupe transversale partielle de ladite troisième variante du vitrage multiple de l’invention. [Fig. 3] is a partial cross section of said third variant of the multiple glazing of the invention.
En référence à la figure 1 , un hublot 1 de cabine passager d’avion commercial est constitué d’une première dalle 2 en PMMA étiré d’épaisseur comprise entre 9,5 et 11 mm, et d’une deuxième dalle 4 en PMMA étiré de 4 mm d’épaisseur. La première dalle 2 et la deuxième dalle 4 sont enchâssées à leur périphérie dans un joint de montage 6 en silicone, à une certaine distance l’une de l’autre constituant une lame d’air 3. Referring to Figure 1, a passenger cabin window 1 of a commercial aircraft consists of a first slab 2 of stretched PMMA with a thickness of between 9.5 and 11 mm, and a second slab 4 of stretched PMMA 4mm thick. The first slab 2 and the second slab 4 are embedded at their periphery in a silicone mounting joint 6, at a certain distance from each other constituting an air gap 3.
L’épaisseur de la première dalle 2 est fonction de la valeur de sa surface principale, pour lui permettre de résister à la pressurisation de la cabine du côté de la deuxième dalle 4, en limitant sa flexion en cas de variation de la différence de pressions sur ses deux surfaces principales. Un petit trou traversant non représenté est ménagé dans la deuxième dalle 4, de sorte que la lame d’air 3 est à la pression cabine du côté de la deuxième dalle 4, et que la première dalle 2 assume seule la fonction de résistance mécanique nécessitée par les différences de pression de part et d’autre du hublot 1. The thickness of the first slab 2 is a function of the value of its main surface, to enable it to resist the pressurization of the cabin on the side of the second slab 4, by limiting its bending in the event of a variation in the pressure difference. on its two main surfaces. A small through hole, not shown, is made in the second slab 4, so that the air gap 3 is at cabin pressure on the side of the second slab 4, and the first slab 2 alone assumes the required mechanical resistance function. by the pressure differences on either side of the window 1.
Un film 5 antisolaire de poly(téréphtalate d’éthylène) (PET) a été muni sur une face d’une couche d’adhésif, par laquelle on le colle sur la surface principale de la première dalle 2 en regard de la deuxième dalle 4. Le film 5 est muni d’un empilement de couches minces antisolaire tel que décrit notamment dans le document US 2018 362 395 A1 . A poly (ethylene terephthalate) (PET) sunscreen film 5 has been provided on one side with a layer of adhesive, by which it is glued to the main surface of the first tile 2 facing the second tile 4 The film 5 is provided with a stack of thin sunscreen layers as described in particular in document US 2018 362 395 A1.
Le hublot 1 de la figure 2 diffère de celui de la figure 1 en ce que le film 5 est collé sur la surface principale de la deuxième dalle 4 en regard de la première dalle 2. Bien que selon la figure 2, l’empilement antisolaire du film 5 soit plus éloigné de la source de rayonnement solaire que selon la figure 1 , on la préfère car contrairement à cette dernière, son support, la deuxième dalle 4, n’est soumise à aucune contrainte mécanique résultant de la pressurisation cabine (contrairement à la première dalle 2), et de plus, le rayonnement solaire rencontre d’abord l’empilement antisolaire du film 5, avant sa couche d’adhésif, ce qui favorise la durabilité du film 5. The porthole 1 of FIG. 2 differs from that of FIG. 1 in that the film 5 is glued to the main surface of the second slab 4 facing the first slab 2. Although according to FIG. 2, the solar protection stack of the film 5 is further from the source of solar radiation than according to FIG. to the first slab 2), and moreover, the solar radiation first encounters the solar protection stack of the film 5, before its adhesive layer, which promotes the durability of the film 5.
En référence à la figure 3, la première dalle 2 est constituée d’une première feuille 21 extérieure de PMMA étiré feuilletée à une deuxième feuille 23 interne au vitrage multiple 1 de PMMA étiré, au moyen d’une couche adhésive intercalaire 22 de polyuréthane thermoplastique (TPU). Le film 5 antisolaire est collé sur la feuille 23 avant le feuilletage. Conformément à cette réalisation, l’empilement antisolaire est plus en amont par rapport à la source de rayonnement solaire que dans les réalisations des figures 1 et 2, et le rayonnement solaire rencontre bien l’empilement antisolaire du film 5 avant sa couche d’adhésif comme selon la figure 2, néanmoins la réalisation représentée à cette dernière est préférée car le film 5 de la figure 3 est vulnérabilisé par les contraintes mécaniques de la première dalle 2, particulièrement de la deuxième feuille 23 et de la couche adhésive intercalaire 22, contraintes mécaniques dues à la pressurisation cabine. Referring to Figure 3, the first slab 2 consists of a first outer sheet 21 of stretched PMMA laminated to a second sheet 23 inside the multiple glazing 1 of stretched PMMA, by means of an intermediate adhesive layer 22 of polyurethane thermoplastic (TPU). The sunscreen film 5 is glued to the sheet 23 before the lamination. In accordance with this embodiment, the solar protection stack is further upstream with respect to the source of solar radiation than in the embodiments of FIGS. 1 and 2, and the solar radiation indeed encounters the solar protection stack of the film 5 before its adhesive layer. as according to FIG. 2, nevertheless the embodiment represented therein is preferred because the film 5 of FIG. mechanical due to cabin pressurization.

Claims

REVENDICATIONS
1 . Vitrage multiple (1 ) pour délimiter deux espaces à différence de pressions variable, notamment une enceinte soumise à une pressurisation, comprenant au moins une première dalle (2) transparente destinée à être en contact avec l’atmosphère extérieure en position de montage, et séparée d’une deuxième dalle (4) transparente par une lame d’air (3), au moyen d’ un joint de montage (6) dans lequel une partie périphérique du vitrage multiple (1 ) est enchâssée, caractérisé en ce qu’il comprend au moins un film de matériau polymère (5) dont une surface principale est fonctionnalisée pour sa mise et son maintien en adhésion avec un substrat, et qui comprend une couche ou un empilement de couches antisolaire, un tel film de matériau polymère (5) étant en adhésion sur la surface principale de la première dalle (2) en regard de la deuxième dalle (4) et/ou sur l’une des deux surfaces principales de la deuxième dalle (4) ou les deux et ou la première dalle (2) est un vitrage feuilleté (21 , 22, 23) et un tel film de matériau polymère (5) étant en adhésion sur une surface principale interne à la structure feuilletée, d’un constituant (21 , 23) du vitrage feuilleté (21 , 22, 23). 1 . Multiple glazing (1) for delimiting two spaces with variable pressure differences, in particular an enclosure subjected to pressurization, comprising at least a first transparent slab (2) intended to be in contact with the external atmosphere in the mounting position, and separated of a second slab (4) transparent by an air gap (3), by means of a mounting joint (6) in which a peripheral part of the multiple glazing (1) is embedded, characterized in that it comprises at least one film of polymeric material (5), one main surface of which is functionalized for its setting and its maintenance in adhesion with a substrate, and which comprises a layer or a stack of sunscreen layers, such a film of polymeric material (5) being in adhesion on the main surface of the first slab (2) facing the second slab (4) and/or on one of the two main surfaces of the second slab (4) or both and or the first slab ( 2) is laminated glazing (21, 22, 23) and such a film of polymer material (5) being in adhesion on a main surface internal to the laminated structure, of a constituent (21, 23) of the laminated glazing (21, 22, 23).
2. Vitrage multiple (1) selon la revendication 1 , caractérisé en ce qu’un film de matériau polymère (5) est en adhésion sur la surface principale de la deuxième dalle (4) en regard de la première dalle (2). 2. Multiple glazing (1) according to claim 1, characterized in that a film of polymeric material (5) adheres to the main surface of the second slab (4) facing the first slab (2).
3. Vitrage multiple (1) selon l’une des revendications précédentes, caractérisé en ce qu’un film de matériau polymère (5) est en adhésion sur la surface principale de la deuxième dalle (4) opposée à la première dalle (2). 3. Multiple glazing (1) according to one of the preceding claims, characterized in that a film of polymer material (5) adheres to the main surface of the second slab (4) opposite the first slab (2) .
4. Vitrage multiple (1) selon l’une des revendications précédentes, caractérisé en ce que la première dalle (2) est un vitrage feuilleté (21 , 22, 23) et un film de matériau polymère (5) étant en adhésion sur une surface principale interne à la structure feuilletée, d’un constituant (21 , 23) du vitrage feuilleté (21 , 22, 23). 4. Multiple glazing (1) according to one of the preceding claims, characterized in that the first slab (2) is a laminated glazing (21, 22, 23) and a film of polymer material (5) being in adhesion on a internal main surface of the laminated structure, of a constituent (21, 23) of the laminated glazing (21, 22, 23).
5. Vitrage multiple (1 ) selon la revendication 4, caractérisé en ce que ladite surface principale interne à la structure feuilletée, d’un constituant (23) est orientée vers la surface extérieure du vitrage multiple (1) constituée par la première dalle (2) et non vers la lame d’air (3) et la deuxième dalle (4). 5. Multiple glazing (1) according to claim 4, characterized in that said main surface internal to the laminated structure, of a constituent (23) is oriented towards the outer surface of the multiple glazing (1) constituted by the first slab ( 2) and not towards the air gap (3) and the second slab (4).
6. Vitrage multiple (1) selon l’une des revendications précédentes, caractérisé en ce qu’un film de matériau polymère (5) est en adhésion sur la surface principale de la première dalle (2) en regard de la deuxième dalle (4). 6. Multiple glazing (1) according to one of the preceding claims, characterized in that a film of polymer material (5) adheres to the main surface of the first slab (2) facing the second slab (4 ).
7. Vitrage multiple (1) selon l’une des revendications précédentes, caractérisé en ce que la première dalle (2) a une épaisseur comprise entre 1 ,5 et 20 mm, de préférence au plus égale à 18, de manière particulièrement préférée à 16 mm. 7. Multiple glazing (1) according to one of the preceding claims, characterized in that the first slab (2) has a thickness of between 1.5 and 20 mm, preferably at most equal to 18, particularly preferably to 16mm.
8. Vitrage multiple (1) selon l’une des revendications précédentes, caractérisé en ce que la deuxième dalle (4) a une épaisseur comprise entre 2 et 6 mm, de préférence entre 3 et 5 mm. 8. Multiple glazing (1) according to one of the preceding claims, characterized in that the second slab (4) has a thickness of between 2 and 6 mm, preferably between 3 and 5 mm.
9. Vitrage multiple (1) selon l’une des revendications précédentes, caractérisé en ce que la première dalle (2) est choisie parmi une feuille de matériau polymère tel que poly(méthacrylate de méthyle) (PMMA) notamment étiré, une feuille de verre tel que sodocalcique, aluminosilicate, borosilicate, éventuellement durci, trempé thermiquement ou renforcé chimiquement, et un vitrage feuilleté d’au moins deux feuilles de matériau polymère et/ou de verre collées l’une à l’autre au moyen d’au moins une couche adhésive intercalaire telle que de polyvinylbutyral (PVB), polyuréthane thermoplastique (TPU), ou copolymère éthylène - acétate de vinyle (EVA), silicone, polyuréthane réticulé ou polyméthacrylates réticulés. 9. Multiple glazing (1) according to one of the preceding claims, characterized in that the first slab (2) is chosen from a sheet of polymeric material such as poly (methyl methacrylate) (PMMA) in particular stretched, a sheet of glass such as soda-lime, aluminosilicate, borosilicate, optionally hardened, thermally tempered or chemically reinforced, and laminated glazing of at least two sheets of polymeric material and/or glass glued together by means of at least an intermediate adhesive layer such as polyvinyl butyral (PVB), thermoplastic polyurethane (TPU), or ethylene-vinyl acetate copolymer (EVA), silicone, crosslinked polyurethane or crosslinked polymethacrylates.
10. Vitrage multiple (1) selon l’une des revendications précédentes, caractérisé en ce que la deuxième dalle (4) est acrylique, telle qu’en PMMA étiré. 10. Multiple glazing (1) according to one of the preceding claims, characterized in that the second slab (4) is acrylic, such as stretched PMMA.
11 . Vitrage multiple (1) selon l’une des revendications précédentes, caractérisé en ce que la deuxième dalle (4) ou le joint de montage (6) comprend un trou traversant de petit diamètre contrôlé, de sorte que la lame d’air (3) soit à la même pression que le volume délimité par le vitrage multiple (1) du côté opposé à la première dalle (2). 11 . Multiple glazing (1) according to one of the preceding claims, characterized in that the second slab (4) or the assembly joint (6) comprises a through hole of controlled small diameter, so that the air gap (3 ) or at the same pressure as the volume delimited by the multiple glazing (1) on the side opposite the first slab (2).
12. Vitrage multiple (1) selon l’une des revendications précédentes, caractérisé en ce qu’un troisième constituant en forme la surface principale opposée à la première dalle (2), ce troisième constituant étant une feuille de matériau polymère séparée de la deuxième dalle (4) par une autre lame d’air. 12. Multiple glazing (1) according to one of the preceding claims, characterized in that a third constituent forms the main surface opposite the first slab (2), this third constituent being a sheet of polymer material separated from the second slab (4) by another air gap.
13. Vitrage multiple (1 ) selon la revendication 12, caractérisé en ce que ledit troisième constituant est une feuille de polycarbonate (PC) ou équivalent et supporte une fonction électrochrome. 13. Multiple glazing (1) according to claim 12, characterized in that said third constituent is a sheet of polycarbonate (PC) or equivalent and supports an electrochromic function.
14. Application d’un vitrage multiple (1) selon l’une des revendications précédentes, comme vitrage d’un volume soumis à une pressurisation. 14. Application of multiple glazing (1) according to one of the preceding claims, as glazing of a volume subjected to pressurization.
15. Application selon la revendication 14, comme vitrage aéronautique, notamment comme vitrage d’avion commercial ou de jet d’affaire. 15. Application according to claim 14, as aeronautical glazing, in particular as commercial aircraft or business jet glazing.
16. Application selon la revendication 15, comme hublot de cabine passager. 16. Application according to claim 15, as a passenger cabin window.
EP22715132.1A 2021-04-09 2022-03-21 Multiple glazing of a pressurized container, having a film of adhesive and solar-protection polymer material Pending EP4320041A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2103661A FR3121659B1 (en) 2021-04-09 2021-04-09 Multiple glazing of pressurized enclosure having a film of adhesive and anti-solar polymer material
PCT/FR2022/050514 WO2022214746A1 (en) 2021-04-09 2022-03-21 Multiple glazing of a pressurized container, having a film of adhesive and solar-protection polymer material

Publications (1)

Publication Number Publication Date
EP4320041A1 true EP4320041A1 (en) 2024-02-14

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP22715132.1A Pending EP4320041A1 (en) 2021-04-09 2022-03-21 Multiple glazing of a pressurized container, having a film of adhesive and solar-protection polymer material

Country Status (5)

Country Link
US (1) US20240191558A1 (en)
EP (1) EP4320041A1 (en)
CN (1) CN117120333A (en)
FR (1) FR3121659B1 (en)
WO (1) WO2022214746A1 (en)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2793106B1 (en) * 1999-04-28 2001-06-22 Saint Gobain Vitrage MULTIPLE INSULATING WINDOWS, ESPECIALLY AIRPLANE WINDOWS, WITH ELECTROMAGNETIC SHIELDING
US6561460B2 (en) * 2000-08-03 2003-05-13 Ppg Industries Ohio, Inc. Switchable electrochromic devices for use in aircraft transparency windows
JP5480373B2 (en) 2009-06-12 2014-04-23 ピーピージー・インダストリーズ・オハイオ・インコーポレイテッド Aircraft transparent material with solar control characteristics
TWI577543B (en) 2013-12-30 2017-04-11 聖高拜塑膠製品公司 Optical film exhibiting improved light to solar gain heat ratio
FR3044258B1 (en) * 2015-11-30 2017-12-22 Saint Gobain SHEET GLAZING BASED ON ADHESIVE SENSITIVE TO PRESSURE
FR3099131B1 (en) * 2019-07-26 2021-09-03 Saint Gobain Lightweight, low drag aircraft window

Also Published As

Publication number Publication date
FR3121659B1 (en) 2023-10-27
CN117120333A (en) 2023-11-24
WO2022214746A1 (en) 2022-10-13
FR3121659A1 (en) 2022-10-14
US20240191558A1 (en) 2024-06-13

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