EP4259426A1 - Verbundglasscheibe mit mehreren scheiben, deren ein positionierbereich nebeneinander durch einbringen eines strukturelementes verstärkt ist - Google Patents

Verbundglasscheibe mit mehreren scheiben, deren ein positionierbereich nebeneinander durch einbringen eines strukturelementes verstärkt ist

Info

Publication number
EP4259426A1
EP4259426A1 EP21848002.8A EP21848002A EP4259426A1 EP 4259426 A1 EP4259426 A1 EP 4259426A1 EP 21848002 A EP21848002 A EP 21848002A EP 4259426 A1 EP4259426 A1 EP 4259426A1
Authority
EP
European Patent Office
Prior art keywords
panels
laminated glazing
glass
structuring element
laminated
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
EP21848002.8A
Other languages
English (en)
French (fr)
Inventor
Cyril LAGO-GOMEZ
Jean-Charles SAUVESTY
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 EP4259426A1 publication Critical patent/EP4259426A1/de
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
    • 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
    • B32B17/10366—Reinforcements of the laminated safety glass or glazing against impact or intrusion
    • 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
    • B32B17/10009—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
    • B32B17/10036—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
    • B32B17/10045—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 with at least one intermediate layer consisting of a glass sheet
    • 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
    • B32B17/10082—Properties of the bulk of a glass sheet
    • B32B17/10119—Properties of the bulk of a glass sheet having a composition deviating from the basic composition of soda-lime glass, e.g. borosilicate
    • 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
    • B32B17/10137—Chemical strengthening
    • 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
    • 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
    • B32B17/1055—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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/1055—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer
    • B32B17/10743—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer containing acrylate (co)polymers or salts thereof
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • 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
    • C03C27/00—Joining pieces of glass to pieces of other inorganic material; Joining glass to glass other than by fusing
    • C03C27/06—Joining glass to glass by processes other than fusing
    • 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

Definitions

  • the invention relates to the field of glazing for land, air and water vehicles subjected to stresses which may be of mechanical origin (pressure, impact, etc.), thermal or thermomechanical.
  • stresses which may be of mechanical origin (pressure, impact, etc.), thermal or thermomechanical.
  • the vision zone allowing the pilots or passengers to have a view of the exterior of the vehicle is interspersed with structural zones belonging to the vehicles and forming support zones for fixing the glazing.
  • the vision zone is cut off by several parts incorporating structural uprights thus limiting the vision zone.
  • window frames incorporating fasteners.
  • a first drawback is the reduction in the area of vision: the occupants of the device have a relatively small area of vision due to the size of the structural elements. The areas are all the more reduced when the glazing is framed, which must include the fixing elements (screws, rivets, etc.) between the glazed areas.
  • a second drawback is the increase in mass: from a mechanical stress point of view, we have changes in sections, materials and neutral fiber position (zero stress zone), making it necessary to size the glazing and the structure with a considerable thickness so that the whole can withstand the different stresses.
  • the mass of the sub-assembly is strongly impacted.
  • a third drawback is the increase in assembly/disassembly times: the operation times are lengthened because each glazing must be mounted in its housing. The more glazing, the longer the operations. [0006]There is therefore a need to provide a single assembly process for producing the structure and the glazing, the whole being integrated during the laminating/autoclaving operation of the entire transparency.
  • a laminated glazing comprising at least a first and a second elementary transparent laminated panels juxtaposed by their edges, the respective glass sheets of which are distinct and separated from each other, characterized in that the glass sheets of the first panel on the one hand, the glass sheets of the second panel on the other hand, are bonded two by two by an intermediate adhesive layer which is integral to the surface of the assembly of the first and second panels, and in that in a juxtaposition zone of the first and second panels, a structuring element is inserted into the intermediate adhesive layer.
  • Laminated glazing is made in several parts (panels).
  • a structuring element is integrated into the glazing during its lamination, so as to be superimposed on at least one zone of edges or adjoining edges of two neighboring panels (juxtaposed), over a certain width on either side of these adjoining edges .
  • the material and the dimensions of the structuring element are chosen so as to enable the laminated glazing to withstand the various loading cases to which it is subjected.
  • the structuring element may break without however giving rise to a safety problem, the various panes of the glazing also being linked by one or more layers or sheets of polymer material, in particular spacer adhesives.
  • the structuring element provides the rigidity of the connection of the sub-assembly, the elements in polymer material the resistance of the assembly in the event of failure of the structuring element.
  • the function of resistance to the bird is provided by the adhesive spacer, connecting material between the different panels making it possible to guarantee the sealing of the glazing vis-à-vis the impactor .
  • the glass sheets of the first panel on the one hand, of the second on the other hand are independently of each other in the number of m and n2 identical or different whole numbers greater than or equal to 2. If m and n2 are greater than or equal to 3, the glass sheets of the first panel on the one hand, the glass sheets of the second panel on the other hand, are bonded two by two by at least two intermediate adhesive layers (in two different levels of thickness of the laminated structure) which both separately can advantageously be made in one piece on the surface of the assembly of the first and second panels.
  • a structuring element is inserted in one of these two intermediate adhesive layers, or in both, or even, in more complex laminates, in at least three such intermediate adhesive layers indentations on the surface of all of the first and second panels, at different levels of thickness of the laminated structure.
  • the laminated glazing may comprise at least three, and for example up to seven transparent elementary laminated panels without departing from the scope of the invention. Their edges are then juxtaposed along at least two juxtaposition lines defining at least two juxtaposition zones (for example along a strip of a certain width on either side of each of the juxtaposition lines). In at least two of these juxtaposition zones, in all of these juxtaposition zones or even in some only, at least one structuring element is inserted in at least one intermediate adhesive layer. At least one of these juxtaposition zones may be devoid of any structuring element without departing from the scope of the invention.
  • each glass sheet of the first panel is juxtaposed with a corresponding glass sheet of the second panel, with the interposition of a gasket.
  • the seal is made of organic material, such as polyurethane, silicone, polysulphide, it has a sealing function, possibly has the flexibility required for a joint, is transparent or not.
  • the structuring element is made of organic, mineral, composite or metallic material.
  • examples are a thin sheet of chemically reinforced glass, a sheet of polymeric material such as epoxy resin or unsaturated polyester with reinforcing fibers such as fiberglass, carbon, aramid...
  • the glass sheets are made of mineral glass such as soda-lime float, aluminosilicate, or borosilicate, optionally hardened, heat-tempered or chemically reinforced, or of organic glass such as poly(methyl methacrylate) (PMMA), polycarbonate (PC), poly(ethylene terephthalate) (PET), or polyurethane (PU).
  • PMMA poly(methyl methacrylate)
  • PC polycarbonate
  • PET poly(ethylene terephthalate)
  • PU polyurethane
  • the (each) intermediate adhesive layer is made of polyvinyl butyral (PVB), thermoplastic polyurethane (TPU), ethylene-vinyl acetate copolymer (EVA) or ionomer resin such as poly(acrylic acid) partially neutralized with a polyamine.
  • PVB polyvinyl butyral
  • TPU thermoplastic polyurethane
  • EVA ethylene-vinyl acetate copolymer
  • ionomer resin such as poly(acrylic acid) partially neutralized with a polyamine.
  • At least the first and the second transparent elementary laminated panels each consist of at least three sheets of glass bonded two by two by an intermediate adhesive layer which is integral to the surface of all of the first and second panels, and in a zone of juxtaposition of the first and second panels, a structuring element is inserted in at least two intermediate adhesive layers (at two levels of thickness of the laminated structure), in all or not of these at least least two intermediate adhesive layers.
  • the structuring element extends over the entire juxtaposition zone of the first and second panels. These terms designate a continuous zone extending over the entire length of juxtaposition of the edges of the two panels, for example in accordance with a band.
  • the structuring element extends over a part or several separate parts of the zone of juxtaposition of the first and second panels.
  • the structuring elements When several structuring elements are inserted in this juxtaposition zone in intermediate adhesive layers at different levels of thickness of the laminated structure, they can extend independently of each other over the entire zone (length) of juxtaposition of the edges of the two panels, on only one part or on several separate parts of this juxtaposition zone.
  • These different structuring elements can be made of identical or different materials, identical or different dimensions in the thickness of the laminate or in the plane of its two main surfaces, so as to be more or less superimposable, or on the contrary. distinct. Mechanical strength as well as aesthetic effects can result from these different modes.
  • the laminated glazing comprises at least a first, a second and a third transparent elementary laminated panels, up to seven in particular. At least two juxtaposition zones are then defined between two adjacent elementary panels, at least one structuring element being inserted in all these juxtaposition zones, or only in some or only one of them.
  • the invention also relates to the application of a laminated glazing defined above as glazing fixed by gluing, bolting or pinching, particularly as glazing for an air vehicle, in particular drone, airplane, in particular business aircraft (in English “business jet”) or tourism, or helicopter, land vehicle, in particular road or rail, or aquatic.
  • FIG. 1 is a schematic cross-sectional representation of a laminated glazing according to the invention.
  • FIG. 2 is an enlarged view of the cross-section of FIG. 1 in the zone of juxtaposition of the first and the second panels.
  • FIG. 3 is a front view of a double windshield intended to occupy the surface of two windshields of the prior art, separated by a vertical structural upright forming part of the cabin of an aircraft.
  • a laminated glazing according to the invention comprises a first and a second transparent elementary laminated panels.
  • the first elementary laminated panel consists of a first sheet of glass 1 bonded to a second sheet of glass 4 by means of an intermediate adhesive layer 7.
  • the second elementary panel consists of a first sheet of glass 2 bonded to a second sheet of glass 5 by the intermediate adhesive layer 7 which is made in one piece over the entire extent of the first and the second panel.
  • the first sheets of glass 1, 2 of the first and second panels are made of the same material, for example aluminosilicate glass chemically reinforced with a thickness suitable for the use of the glazing, in particular between 2 and 8 mm.
  • the second sheets of glass 4, 5 of the first and second panels are also made of the same material, for example chemically reinforced aluminosilicate glass or heat-tempered soda-lime glass with a thickness of between 2 and 8 mm, or poly(methyl methacrylate) (PMMA ), polyurethane (PU) or polycarbonate (PC) thickness between 3 and 16 mm.
  • PMMA poly(methyl methacrylate)
  • PU polyurethane
  • PC polycarbonate
  • the intermediate adhesive layer 7 is made of polyvinyl butyral (PVB) with a thickness of between 0.38 and 8 mm, if they are made of polymer material, the intermediate adhesive layer is made of thermoplastic polyurethane ( TPU) thickness between 0.5 and 10 mm.
  • edges or edges of the first and second elementary panels define corresponding profiles allowing them to be joined perfectly as shown.
  • a structuring element 8 is embedded in the intermediate adhesive layer 7 only in the juxtaposition zone of the two panels, in accordance with a band on either side of their juxtaposition profile (delimitation between the two panels).
  • the structuring element 8 is transparent in chemically reinforced glass, for example 1 to 2.5 mm thick, or metal 0.5 to 4 mm thick, or in thermosetting resin reinforced with glass or aramid reinforcing fibers , 0.7 to 3 mm thick.
  • the first, respectively second sheets of glass 1, 2, respectively 4, 5 of the first and second panels are connected in a sealed manner by a seal 3, respectively 6 in optionally transparent deformable, compressible polymer material, such as polyurethane , silicone or polysulfide.
  • FIG 3 we see a windshield of relatively large area, the complete outline of the first glass sheets 1, 2 outer first and second panels constituting the entire laminated windshield, as well as the joint 3 connecting these first sheets of glass 1, 2.
  • the joint is very thin and discreet with respect to the entire surface of the windshield.
  • the invention thus makes it possible to increase the field of vision of the user, pilot, passenger, by eliminating or reducing the use of structural uprights forming part of the bodywork/cabin of the vehicle, or of mounting frames separating glazed surfaces in a partial and fractional way.
  • the invention on the contrary, provides relatively large and fully transparent surfaces, free of intermediate structural support uprights for fixing the glazing. The assembly and disassembly of these is simplified and faster.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Joining Of Glass To Other Materials (AREA)
EP21848002.8A 2020-12-14 2021-12-13 Verbundglasscheibe mit mehreren scheiben, deren ein positionierbereich nebeneinander durch einbringen eines strukturelementes verstärkt ist Pending EP4259426A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2013196A FR3117403B1 (fr) 2020-12-14 2020-12-14 Vitrage feuilleté à plusieurs panneaux, dont une zone de juxtaposition de panneaux voisins est renforcée par insertion d’un élément structurant
PCT/FR2021/052287 WO2022129751A1 (fr) 2020-12-14 2021-12-13 Vitrage feuilleté à plusieurs panneaux, dont une zone de juxtaposition de panneaux voisins est renforcée par insertion d'un élément structurant

Publications (1)

Publication Number Publication Date
EP4259426A1 true EP4259426A1 (de) 2023-10-18

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EP21848002.8A Pending EP4259426A1 (de) 2020-12-14 2021-12-13 Verbundglasscheibe mit mehreren scheiben, deren ein positionierbereich nebeneinander durch einbringen eines strukturelementes verstärkt ist

Country Status (6)

Country Link
US (1) US20240034031A1 (de)
EP (1) EP4259426A1 (de)
CN (1) CN116615397A (de)
CA (1) CA3198801A1 (de)
FR (1) FR3117403B1 (de)
WO (1) WO2022129751A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW202043021A (zh) * 2019-03-31 2020-12-01 美商康寧公司 透明聲吸收器、擴散器以及方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2781415B1 (fr) * 1998-07-24 2000-09-01 Saint Gobain Vitrage Vitrage feuillete de securite
DE102017009116A1 (de) * 2017-09-21 2019-03-21 Audi Ag Verbundscheibe für ein Kraftfahrzeug und Kraftfahrzeug mit wenigstens einer Verbundscheibe
FR3079776B1 (fr) * 2018-04-05 2020-03-27 Noemille Participations Vitrage feuillete fonctionnel exterieur attache

Also Published As

Publication number Publication date
FR3117403B1 (fr) 2022-11-18
US20240034031A1 (en) 2024-02-01
CN116615397A (zh) 2023-08-18
CA3198801A1 (fr) 2022-06-23
WO2022129751A1 (fr) 2022-06-23
FR3117403A1 (fr) 2022-06-17

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