EP3723979A1 - Aeronautische verbundglasscheibe mit hohem widerstand gegen vogelschlag - Google Patents

Aeronautische verbundglasscheibe mit hohem widerstand gegen vogelschlag

Info

Publication number
EP3723979A1
EP3723979A1 EP18833917.0A EP18833917A EP3723979A1 EP 3723979 A1 EP3723979 A1 EP 3723979A1 EP 18833917 A EP18833917 A EP 18833917A EP 3723979 A1 EP3723979 A1 EP 3723979A1
Authority
EP
European Patent Office
Prior art keywords
laminated glazing
glass sheet
structural
sheet
glass
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP18833917.0A
Other languages
English (en)
French (fr)
Inventor
Thomas TONDU
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 EP3723979A1 publication Critical patent/EP3723979A1/de
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • 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
    • B32B17/10018—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 only one 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
    • B32B17/10036—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
    • B32B17/10064—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 at least two glass sheets, only one of which being an outer layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/10009—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
    • B32B17/10174—Coatings of a metallic or dielectric material on a constituent layer of glass or polymer
    • B32B17/10201—Dielectric coatings
    • 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
    • B32B17/10165—Functional features of the laminated safety glass or glazing
    • B32B17/10376—Laminated safety glass or glazing containing metal wires
    • B32B17/10385—Laminated safety glass or glazing containing metal wires for ohmic resistance heating
    • 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
    • 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
    • B64C1/1484—Windows
    • 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
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/558—Impact strength, toughness
    • 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
    • B32B2605/006—Transparent parts other than made from inorganic glass, e.g. polycarbonate glazings
    • 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 mechanical dimensioning of aeronautical glazing is governed by the requirement of impact resistance by birds.
  • the mass of glazing is therefore strongly governed by the requirement of resistance to bird shocks.
  • This invention is a reduced mass glazing composition consisting of high tensile strength structural glass and tenacious structural plastic.
  • the rupture stress is also sometimes called a module of rupture (in English "Module of Rupture" - MOR -).
  • the aeronautical glazing consists of at least two plies to provide security in the event of breakage of a fold.
  • a third fold can be added on the outer face to manage aerodynamic requirements and / or as a support for the heating function for defrosting.
  • the folds providing the mechanical properties are called the structural folds: they are either:
  • PMMA methyl methacrylate
  • PC polycarbonate
  • PU polyurethane
  • Mass saving is a permanent requirement of the aerospace industry. Glazing with two structural glass plies on the one hand, stretched PMMA on the other hand, allow access to substantially similar masses of laminated glazing.
  • Polycarbonate glazing allows a reduction in mass, but polycarbonate also has many defects:
  • the glazing is flexed locally, which induces constraints on the glazing. It is the farthest surface of the shock that receives the highest stresses that can cause the rupture of the structural fold inside the laminated glass plane. On the contrary, the outer structural fold is very little stressed in extension or is put in compression, which preserves it.
  • the structural block of the laminated glazing is subjected to compressive stresses then to stresses in extension, the two types of stresses being separated by a plane called "neutral fiber" (zero load) within the structural block.
  • the object of the invention is to combine two structural sheets to push the rupture limit of the laminated glazing to the impact of the bird.
  • This object is achieved by the invention which, accordingly, relates to a laminated glazing for a vehicle or a building, characterized in that it comprises a sheet of inner structural polymer material and an outer structural glass sheet of thickness between 3 and 20 mm having a tensile stress of 350 to 1000 MPa with the characteristics of stressing a bird shock.
  • the invention consists in the production of a structural block formed of a high-tensile fracture glass on the outermost face of the structural block and a polymeric material placed on the internal face of the glazing and characterized by a low elastic modulus.
  • the glass has a high elastic modulus of about 70GPa, much higher than that of polymeric materials (some GPa under the conditions solicitation of a bird shock). It is therefore the glass which mainly governs the deformations of the glazing.
  • the neutral fiber (zero load) is moved outwardly of the structural block in the mounting position of the laminated glazing, more precisely inside the outer structural glass: its load is therefore increased.
  • the outer structural glass sheet is here constrained in extension.
  • the sheet of inner structural polymeric material is slightly deformed due to the stiffness of the glass.
  • the polymeric material requires larger deformations than the glass to charge.
  • the total encapsulation of the outer structural glass sheet allows the choice of superficial chemical reinforcements allowing access to higher reinforcement levels than the deep reinforcement lenses. It is specified that the deep reinforcement makes it possible to avoid the loss of mechanical performance by scratching the surface, which can not occur in the case of encapsulation.
  • the sheet of inner structural polymeric material is made of stretched or unstretched poly (methyl methacrylate) (PMMA), structural polyurethane (PU) or polycarbonate (PC), with a thickness of between 5 and 22 mm;
  • PMMA stretched or unstretched poly (methyl methacrylate)
  • PU structural polyurethane
  • PC polycarbonate
  • the outer structural glass sheet is made of soda-lime or aluminosilicate glass; the outer structural glass sheet is chemically reinforced; the chemical reinforcement consists for example in the substitution of sodium ions by potassium ions, or of lithium ions by sodium ions, that is to say each time by larger ions, on the surface of the glass sheets ; this increases their surface compression stress and their breaking stress;
  • the inner and outer structural sheets are bonded to each other by means of a first intermediate adhesive layer of thickness between 0.5 and 5, preferably between 1.8 and 3.2 mm;
  • the laminated glazing comprises, on the side of the outer structural glass sheet opposite to the sheet of inner structural polymeric material, an outer glass sheet of thickness between 0.5 and 5 mm; this outer sheet of glass, thin and non-structural, constitutes the outer surface of the laminated glazing, in contact with the outside atmosphere;
  • the outer glass sheet is of soda-lime or aluminosilicate type; the outer glass sheet is semi-tempered or chemically reinforced;
  • the outer glass sheet is bonded to the outer structural glass sheet by means of a second intermediate adhesive layer of thickness between 2 and 12, preferably 3 and 7 mm;
  • the face of the outer glass sheet facing the outer structural glass sheet supports a heating wire network and / or an electroconductive heating layer; copper wires, indium oxide layer doped with tin ITO (in English: “indium tin oxide”), connected to a power supply via collectors (in English "bus-bars"); this positioning of the heating function provides defrosting of the surface of the laminated glazing in contact with the outside atmosphere, in all the conditions of use, while minimizing the electric power required (proximity of the frost);
  • one face of the inner or outer structural sheet supports a heating wire array and / or an electroconductive heating layer as described above; this positioning of the function of heating provides defogging of the laminated glazing surface in contact with the atmosphere of the cockpit of the aircraft;
  • the face of the outer glass sheet opposite to the outer structural glass sheet is flush with the mounting structure; in other words, this face is in continuity with the structure (cabin of the plane); an essential function of the outer glass sheet is the aerodynamic performance of the aircraft, and to a lesser extent the appearance function;
  • an interlayer adhesive layer comprises a polyvinyl butyral (PVB), a polyurethane (PU), an ethylene-vinyl acetate copolymer (EVA) or the like;
  • PVB polyvinyl butyral
  • PU polyurethane
  • EVA ethylene-vinyl acetate copolymer
  • the laminated glazing is curved (concavity towards the interior of the vehicle or the building in the mounting position);
  • a reinforcement sheet is inserted between the inner and outer structural glass sheets, on at least part of a peripheral zone of the laminated glazing unit; it is a band of reinforcing material such as metal, composite fiber (Kevlar® or similar), according to a significant portion of the peripheral zone of the laminated glazing; this reinforcing sheet is subjected to the local stress applied by the windscreen and which could locally break the outer structural glass into small pieces; the reinforcing sheet prevents tearing of the interlayer adhesive layer at the contact limit between the press and glazing.
  • the invention furthermore relates to the application of a laminated glazing unit as described above in aeronautics, in particular as commercial, regional or business aircraft glazing subject to the requirements of impact resistance. to the bird.
  • Example A laminated window of a commercial pressurized aircraft cockpit is constituted, from the interior of the aircraft to the outside:
  • the two structural sheets are bonded through an intermediate adhesive layer of PVB 2 mm thick.
  • the outer structural glass sheet and the outer glass sheet are bonded through a 10 mm thick PU interlayer adhesive layer.
  • the face of the outer glass sheet facing the outer structural glass sheet carries a de-icing heating layer of ITO. This is particularly the case of an anti-frost glass front aircraft cockpit.
  • the heating function can be supported by any surface of the structural block in the laminate.
  • the outer face of the outer glass sheet is flush with the cabin of the aircraft, mounting environment of the laminated glazing.
  • This laminated glazing has improved resistance to impact to the bird.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Joining Of Glass To Other Materials (AREA)
  • Laminated Bodies (AREA)
EP18833917.0A 2017-12-13 2018-12-11 Aeronautische verbundglasscheibe mit hohem widerstand gegen vogelschlag Withdrawn EP3723979A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1762049A FR3074721B1 (fr) 2017-12-13 2017-12-13 Vitrage feuillete aeronautique a haute resistance a la rupture au choc a l'oiseau
PCT/FR2018/053207 WO2019115934A1 (fr) 2017-12-13 2018-12-11 Vitrage feuillete aeronautique a haute resistance a la rupture au choc a l'oiseau

Publications (1)

Publication Number Publication Date
EP3723979A1 true EP3723979A1 (de) 2020-10-21

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EP18833917.0A Withdrawn EP3723979A1 (de) 2017-12-13 2018-12-11 Aeronautische verbundglasscheibe mit hohem widerstand gegen vogelschlag

Country Status (10)

Country Link
US (1) US20200384736A1 (de)
EP (1) EP3723979A1 (de)
KR (1) KR20200097743A (de)
CN (1) CN111433018A (de)
BR (1) BR112020010169B1 (de)
CA (1) CA3082890A1 (de)
FR (1) FR3074721B1 (de)
IL (1) IL275067A (de)
RU (1) RU2771543C2 (de)
WO (1) WO2019115934A1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115003529B (zh) * 2020-01-31 2026-03-24 Ａｇｃ株式会社 车辆用夹层玻璃、汽车、及车辆用夹层玻璃的制造方法
FR3132464B1 (fr) * 2022-02-10 2024-01-19 Saint Gobain Vitrage aéronautique dont la totalité de la surface est couverte par un film mince tenace encapsulé dans une couche adhésive intercalaire

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US3616839A (en) * 1967-06-30 1971-11-02 Swedlow Inc Glass-silicone resin-stretched acrylic resin laminates
US4081581A (en) * 1974-04-01 1978-03-28 Ppg Industries, Inc. Laminated aircraft windshield
US4243719A (en) * 1978-01-30 1981-01-06 Romag Holdings Ltd. Laminates
EP0130886A1 (de) * 1983-06-22 1985-01-09 Saint Gobain Vitrage International Sicherheitsglasscheibe, insbesondere eine kugelsichere Scheibe
FR2612174A1 (fr) * 1987-03-10 1988-09-16 Saint Gobain Vitrage Vitrage feuillete et procede de montage
US4812359A (en) * 1984-04-04 1989-03-14 Pilkington Brothers P.L.C. Impact-resistant laminate
US4817347A (en) * 1986-02-27 1989-04-04 Pilkington Brothers P.L.C. Window Panel
US5468559A (en) * 1992-08-15 1995-11-21 Flachglas Intg Glasveredelungs Gmbh Impact resistant laminated windows and manufacture thereof
US5561951A (en) * 1991-04-23 1996-10-08 Pilkington Aerospace Limited Lightweight glazings
US6708595B1 (en) * 1999-06-25 2004-03-23 Saint-Gobain Glass France Laminated, reinforced glass plate
US20090246517A1 (en) * 2005-09-01 2009-10-01 Bungo Hatta Process for producing laminated glass composed partly of plastic sheet, and laminated glass
US20100062236A1 (en) * 2008-06-30 2010-03-11 E. I. Du Pont De Nemours And Company Transparent light-weight safety glazings
US20130344317A1 (en) * 2010-12-20 2013-12-26 Saint-Gobain Glass France Safety glass panel
CN103538448A (zh) * 2013-11-05 2014-01-29 中国航空工业集团公司北京航空材料研究院 一种风挡玻璃的制造方法
WO2017001792A1 (fr) * 2015-07-02 2017-01-05 Saint-Gobain Glass France Vitrage chauffant a feuille de verre exterieure amincie et couche chauffante a lignes de separation de flux

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CA1248822A (en) * 1984-04-04 1989-01-17 Christopher W.G. Hall Impact resistant laminate
FR2597857A1 (fr) * 1986-04-29 1987-10-30 Champeau Andre Materiau composite transparent de protection aux chocs et panneau de protection realise a l'aide d'un tel materiau
GB9011855D0 (en) * 1990-05-26 1990-07-18 Triplex Aircraft Aircraft windshield
JP2006083043A (ja) * 2004-09-17 2006-03-30 Hitachi Ltd ガラス材とその製造方法
DE102012215864A1 (de) * 2012-09-07 2014-03-13 Schott Ag Transparentes durchschusshemmendes Laminat
DE102013214426A1 (de) * 2013-07-24 2015-01-29 Schott Ag Verbundelement und dessen Verwendung
DE102013114225B4 (de) * 2013-12-17 2017-03-16 Schott Ag Chemisch vorspannbares Glas und daraus hergestelltes Glaselement
FR3027185B1 (fr) * 2014-10-10 2021-04-30 Saint Gobain Vitrage chauffant et de blindage electromagnetique
FR3029836B1 (fr) * 2014-12-11 2016-12-23 Saint Gobain Feuillete d'une feuille de materiau polymere epais et d'une feuille de verre mince
FR3031065B1 (fr) * 2014-12-29 2019-08-30 Saint-Gobain Glass France Vitrage feuillete a feuille de verre mince anti-eclat

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3616839A (en) * 1967-06-30 1971-11-02 Swedlow Inc Glass-silicone resin-stretched acrylic resin laminates
US4081581A (en) * 1974-04-01 1978-03-28 Ppg Industries, Inc. Laminated aircraft windshield
US4243719A (en) * 1978-01-30 1981-01-06 Romag Holdings Ltd. Laminates
EP0130886A1 (de) * 1983-06-22 1985-01-09 Saint Gobain Vitrage International Sicherheitsglasscheibe, insbesondere eine kugelsichere Scheibe
US4812359A (en) * 1984-04-04 1989-03-14 Pilkington Brothers P.L.C. Impact-resistant laminate
US4817347A (en) * 1986-02-27 1989-04-04 Pilkington Brothers P.L.C. Window Panel
FR2612174A1 (fr) * 1987-03-10 1988-09-16 Saint Gobain Vitrage Vitrage feuillete et procede de montage
US5561951A (en) * 1991-04-23 1996-10-08 Pilkington Aerospace Limited Lightweight glazings
US5468559A (en) * 1992-08-15 1995-11-21 Flachglas Intg Glasveredelungs Gmbh Impact resistant laminated windows and manufacture thereof
US6708595B1 (en) * 1999-06-25 2004-03-23 Saint-Gobain Glass France Laminated, reinforced glass plate
US20090246517A1 (en) * 2005-09-01 2009-10-01 Bungo Hatta Process for producing laminated glass composed partly of plastic sheet, and laminated glass
US20100062236A1 (en) * 2008-06-30 2010-03-11 E. I. Du Pont De Nemours And Company Transparent light-weight safety glazings
US20130344317A1 (en) * 2010-12-20 2013-12-26 Saint-Gobain Glass France Safety glass panel
CN103538448A (zh) * 2013-11-05 2014-01-29 中国航空工业集团公司北京航空材料研究院 一种风挡玻璃的制造方法
WO2017001792A1 (fr) * 2015-07-02 2017-01-05 Saint-Gobain Glass France Vitrage chauffant a feuille de verre exterieure amincie et couche chauffante a lignes de separation de flux

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See also references of WO2019115934A1 *

Also Published As

Publication number Publication date
IL275067A (en) 2020-07-30
RU2771543C2 (ru) 2022-05-05
FR3074721A1 (fr) 2019-06-14
CA3082890A1 (fr) 2019-06-20
BR112020010169A2 (pt) 2020-11-03
BR112020010169B1 (pt) 2023-10-17
US20200384736A1 (en) 2020-12-10
KR20200097743A (ko) 2020-08-19
WO2019115934A1 (fr) 2019-06-20
FR3074721B1 (fr) 2020-03-27
RU2020121192A3 (de) 2022-01-13
RU2020121192A (ru) 2022-01-13
CN111433018A (zh) 2020-07-17

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