WO2020094420A1 - Vitre feuilletée présentant une section transversale cunéiforme - Google Patents

Vitre feuilletée présentant une section transversale cunéiforme Download PDF

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Publication number
WO2020094420A1
WO2020094420A1 PCT/EP2019/079132 EP2019079132W WO2020094420A1 WO 2020094420 A1 WO2020094420 A1 WO 2020094420A1 EP 2019079132 W EP2019079132 W EP 2019079132W WO 2020094420 A1 WO2020094420 A1 WO 2020094420A1
Authority
WO
WIPO (PCT)
Prior art keywords
pane
intermediate layer
layer
elevations
thermoplastic intermediate
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.)
Ceased
Application number
PCT/EP2019/079132
Other languages
German (de)
English (en)
Inventor
Stephan GIER
Valentin SCHULZ
Raphaela KANNENGIESSER
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
Priority to CN201980003526.6A priority Critical patent/CN111417518A/zh
Publication of WO2020094420A1 publication Critical patent/WO2020094420A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/10009—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets
    • B32B17/10036—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets comprising two outer glass sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/10009—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets
    • B32B17/10082—Properties of the bulk of a glass sheet
    • 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
    • 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
    • B32B17/10559—Shape of the cross-section
    • 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
    • B32B17/10807—Making laminated safety glass or glazing; Apparatus therefor
    • B32B17/10899—Making laminated safety glass or glazing; Apparatus therefor by introducing interlayers of synthetic resin
    • B32B17/10935—Making laminated safety glass or glazing; Apparatus therefor by introducing interlayers of synthetic resin as a preformed layer, e.g. formed by extrusion

Definitions

  • the invention relates to a composite disc with a wedge-shaped cross section, a method for its production and its use.
  • Laminated windows are used in many places these days, especially in vehicle construction.
  • vehicle includes road vehicles, airplanes, ships, agricultural machines or work equipment.
  • Laminated panes are also used in other areas. These include, for example, building glazing or information displays, e.g. in museums or as advertising displays.
  • a composite pane generally has two panes that are laminated to an intermediate layer.
  • the panes themselves can have a curvature and are generally of constant thickness.
  • the intermediate layer generally has a thermoplastic material, preferably polyvinyl butyral (PVB), of a predetermined thickness, e.g. 0.76 mm.
  • PVB polyvinyl butyral
  • Composite panes are also often used as a head-up display (HUD) for displaying information.
  • An image is projected onto the laminated glass panes by means of a projection device in order to display information to the viewer in the field of vision.
  • the projection device is arranged, for example, on the dashboard, so that the projected image is reflected on the closest glass surface of the laminated glass pane inclined towards the viewer in the direction of the viewer (see, for example, the European patent EP 0 420 228 B1 or the German patent application DE 10 2012 21 1 729 A1).
  • a pure classical compensation of ghost images leads to an overcompensation for double images in transmission being observed. This leads to the viewer becoming irritated or, in the worst case, receiving incorrect information.
  • the problem can be solved if the surfaces of the disks are no longer arranged in parallel, but at a fixed angle. This is achieved, for example, in that the intermediate layer is wedge-shaped with a continuously linear and / or non-linearly increasing and / or decreasing thickness. In vehicle construction, the thickness is typically varied such that the smallest thickness is provided at the lower end of the laminated glass pane towards the engine compartment, while the thickness increases toward the roof.
  • a wedge-shaped composite pane can also be realized by arranging an intermediate layer of constant thickness between two glass panes, at least one of which has a wedge-shaped cross section.
  • EP 3 248 949 A1 and US Pat. No. 7,122,242 B2 disclose methods for the production of float glass panes with a wedge-shaped cross section, as well as composite panes comprising two float glass panes and an intermediate layer, at least one of the float glass panes having a wedge-shaped cross section.
  • US 2017/0305240 A1, EP 3 381 879 A1, US 2018/0312044 A1 and JP 2017-105665 likewise disclose composite panes comprising two glass panes and an intermediate layer between them, at least one of the glass panes having a wedge-shaped cross section.
  • a glass melt is passed from one side to a bath of liquid tin (float bath).
  • the temperature at the entrance to the tin bath is approximately 1000 ° C.
  • the lighter glass melt floats on the tin and spreads evenly on the tin surface.
  • the solidified glass is continuously pulled out in the form of a ribbon and then cooled. After sufficient cooling, glass sheets of the desired size are cut to length from the glass ribbon, from which, for example, glass panes for windscreens can then be cut out.
  • the equilibrium thickness of the glass is determined by the distribution of the glass melt on the tin bath.
  • the glass is pulled out of the tin bath by actively driven (top) rollers, whereby the glass band is stretched.
  • the thickness of the glass can be set via the speed of the rollers, a higher speed being set for the production of thinner glasses and, accordingly, a lower speed of the rollers for thicker glasses. If, for example, the speed of the rollers in the lateral areas of the glass ribbon is greater than in the middle of the glass ribbon, a glass ribbon with a plano-convex cross section can be produced, from which wedge-shaped disks can be cut out
  • both glass surfaces have elongated elevations and depressions in a parallel arrangement, each of which extends from the tin bath in the direction of pull of the glass ribbon.
  • the elongated elevations and depressions correspond to wave crests and wave troughs, which are arranged alternately perpendicular to the direction of pull.
  • the glass panes with their longer dimensions are cut out of the tin bath in the pulling direction of the glass ribbon, so that the float lines extend parallel to the longer dimensions of the glass panes.
  • Thermoplastic intermediate layers which are produced by extrusion processes, are also typically of an undesired waviness due to the production process featured. This manifests itself in the form of changes in thickness (elongated elevations and depressions) perpendicular to the direction of extrusion.
  • thermoplastic intermediate layer with the production-related ripple of a pane can lead to an adverse impairment of the optical properties of a laminated glass in which this thermoplastic intermediate layer is laminated between a first pane and a second pane.
  • This effect is particularly pronounced if the production-related undulations of the thermoplastic intermediate layer and the first disk and the second disk overlap. If, for example, windshields in motor vehicles are tilted from one side to the other or from top to bottom, objects can appear distorted by a locally different optical refractive power.
  • the object of the present invention is to provide a composite pane which is simple to manufacture and in which the optical quality is improved.
  • the composite pane according to the invention comprises at least
  • thermoplastic intermediate layer arranged between the outer pane and the inner pane.
  • the outer pane and the inner pane each have an outer and an inner surface and a circumferential side edge running between them.
  • the outside surface is the main surface which is intended to face the external environment in the installed position.
  • the interior surface is the main surface which is intended to face the interior in the installed position.
  • the interior surface of the outer pane and the outer surface of the Inner panes face each other and are connected by the thermoplastic intermediate layer.
  • the composite pane according to the invention has an upper edge and a lower edge.
  • the top edge is the edge of the composite pane which is intended to point upwards in the installed position.
  • the lower edge is the edge that is intended to point downwards in the installed position.
  • the edges of the sides of the pane are referred to as being on the side of the pane, for example in the case of a windshield of a motor vehicle adjacent to the A-pillars. If the composite windshield is the windshield of a motor vehicle, the upper edge is often also referred to as the roof edge and the lower edge as the engine edge.
  • the outer pane and / or the inner pane is designed in the form of a flat glass produced in the float process with a wedge-shaped cross-section with a thicker first end and a thinner second end and, due to the manufacturing process, has a plurality of elongate elevations and elongated depressions on the pane surfaces, which extend along one extend first disc direction and are arranged alternately in a second disc direction perpendicular to the first disc direction.
  • the second pane direction extends from the upper edge to the lower edge of the glass pane.
  • the composite pane according to the invention also has a wedge-shaped cross section.
  • the cross section means the cross section in the vertical course between the lower edge and the upper edge.
  • the thickness increases from the lower edge to the upper edge. The thicker first end is thus at the top edge and the thinner second end is at the bottom edge of the composite pane. This applies equally to the outer pane and / or inner pane, which has a wedge-shaped cross section.
  • both the outer pane and the inner pane are a flat glass with a wedge-shaped cross section produced in the float process.
  • the outer pane has a plurality of elongated ones on the pane surfaces Elevations and elongated depressions, which extend along a first disc direction and are alternately arranged in a second disc direction perpendicular to the first disc direction.
  • the inner pane likewise has a plurality of elongated elevations and elongated depressions on the pane surfaces, which extend along a first pane direction and are arranged alternately in a second pane direction perpendicular to the first pane direction.
  • the outer pane is a flat glass with a wedge-shaped cross section produced in the float process and the inner pane is, for example, a flat glass with a substantially constant thickness produced in the float process.
  • the outer pane on the pane surfaces has a plurality of elongated elevations and elongated depressions which extend along a first pane direction and are arranged alternately in a second pane direction perpendicular to the first pane direction.
  • the inner pane has a plurality of elongated elevations and elongated depressions on the pane surfaces, which extend along a fifth pane direction and are arranged alternately in a sixth pane direction perpendicular to the fifth pane direction.
  • the inner pane is a flat glass with a wedge-shaped cross section produced in the float process and the outer pane is, for example, a flat glass with a substantially constant thickness produced in the float process.
  • the inner pane has a plurality of elongate elevations and elongated depressions on the pane surfaces, which extend along a first pane direction and are arranged alternately in a second pane direction perpendicular to the first pane direction.
  • the outer pane has a plurality of elongated elevations and elongated depressions on the pane surfaces, which extend along a fifth pane direction and are arranged alternately in a sixth pane direction perpendicular to the fifth pane direction.
  • the elongated elevations and indentations in flat glass produced in the float process extend with a substantially constant thickness from the upper edge to the lower edge, whereas the elongate elevations and elongated indentations in the flat glass produced in the float process extend with a wedge-shaped cross section between the side pane edges.
  • the thermoplastic intermediate layer arranged between the outer pane and the inner pane has a substantially constant thickness.
  • an essentially constant thickness of a layer is understood to mean that the thickness of the layer is constant over the length and width within the scope of normal manufacturing tolerances. This preferably means that the thickness does not vary by more than 5%, preferably by not more than 3%.
  • the total thickness of the thermoplastic intermediate layer is for example between 0.10 mm and 1.00 mm and can in particular be 0.38 mm or 0.76 mm or 0.84 mm.
  • thermoplastic films in particular PVB films, are also sold in thicknesses of 1.14 mm or 1.52 mm.
  • Thermoplastic films with acoustic damping properties are sold, for example, in thicknesses of 0.50 mm and 0.84 mm.
  • thermoplastic intermediate layer of the composite pane according to the invention is produced by an extrusion process in which plasticized material in the form of a film is conveyed from an extruder device.
  • the thermoplastic intermediate layer therefore has a certain waviness or unevenness of the surface due to the manufacturing process.
  • the surfaces of the thermoplastic intermediate layer have a plurality of elongated elevations (wave crests) and elongated depressions (wave troughs) which extend along a third (foil) direction and in a fourth (foil) direction perpendicular to the third (foil) direction. Direction are arranged alternately.
  • the third direction corresponds to the direction of extrusion of the thermoplastic intermediate layer.
  • the elongated elevations and elongated depressions of the thermoplastic intermediate layer are typically parallel to one another and arranged in an alternating sequence.
  • the elongated elevations (wave crests) and depressions (wave valleys) describe in the sense of the invention the manufacturing-related, actually undesirable surface ripple.
  • the distance between adjacent elevations or the distance between adjacent depressions is typically greater than or equal to 50 mm. This is to be distinguished from a desired surface roughness, which is often deliberately embossed in the form of elongated elevations and depressions in the film surface in order to promote ventilation when laminating a composite pane, the distance between adjacent elevations or depressions typically being less than 1 mm.
  • thermoplastic intermediate layer is arranged in such a way that the elongate elevations of the thermoplastic intermediate layer are formed at an angle of 45 ° to 90 ° to the elongate elevations of the flat glass with a wedge-shaped cross section produced in the float process
  • Outer pane and / or inner pane are arranged. It goes without saying that when specifying the dimensions of the angle, it can mean both the clockwise and the counterclockwise angle.
  • the optical properties of the composite pane according to the invention are compared to the optical properties of a composite pane in which the elongated elevations of the thermoplastic intermediate layer are at an angle of 0 ° to the elongated elevations of the flat glass with a wedge-shaped cross section produced in the float process trained
  • Outer pane and / or inner pane are arranged, improved.
  • thermoplastic intermediate layer is arranged in the composite pane according to the invention in such a way that the elongated elevations of the thermoplastic intermediate layer are arranged at an angle of 45 ° to 90 ° to the elongated elevations of the outer pane and / or inner pane which is formed in the form of a flat glass with a wedge-shaped cross section and is made in the float process means that in the event that the outer pane is designed in the form of a flat glass produced in the float process with a wedge-shaped cross section and the inner pane is designed in the form of a flat glass manufactured in the float process with a substantially constant thickness, the elongate elevations of the thermoplastic intermediate layer in one Angles of 45 ° to 90 ° to the elongate elevations of the outer pane are arranged.
  • the elongate elevations of the thermoplastic intermediate layer are at an angle of 45 ° arranged up to 90 ° to the elongated elevations of the inner pane.
  • the outer pane is designed in the form of a flat glass with a wedge-shaped cross section produced in the float process and the inner pane is also formed in the form of a flat glass with a wedge-shaped cross section produced in the float process
  • the thermoplastic intermediate layer is arranged such that the elongate elevations of the thermoplastic intermediate layer at an angle of 60 ° to 90 °, in particular at an angle of 75 ° to 90 °, to the elongate elevations in the form of an Flat glass produced with the wedge-shaped cross section of the outer pane and / or inner pane are arranged in a float process.
  • thermoplastic intermediate layer is arranged in the composite pane in such a way that the elongate elevations of the thermoplastic intermediate layer are at an angle of 90 ° to the elongate elevations of the outer pane which is produced in the form of a float-process flat glass and has a wedge-shaped cross section and / or inner pane are arranged.
  • the wedge angle of the composite pane is preferably 0.1 mrad to 1.0 mrad, particularly preferably 0.15 mrad to 0.75 mrad, very particularly preferably 0.3 mrad to 0.7 mrad.
  • the thermoplastic intermediate layer independently of one another contains at least polyvinyl butyral (PVB), ethylene vinyl acetate (EVA), polyurethane (PU) or mixtures or copolymers or derivatives thereof, preferably polyvinyl butyral (PVB), particularly preferably polyvinyl butyral (PVB) and plasticizers.
  • PVB polyvinyl butyral
  • EVA ethylene vinyl acetate
  • PU polyurethane
  • PU polyurethane
  • PVB polyvinyl butyral
  • plasticizers plasticizers
  • thermoplastic intermediate layer can be formed by a single film or by more than one film.
  • the thermoplastic intermediate layer can be a functional intermediate layer, in particular an intermediate layer with acoustically damping properties, an intermediate layer reflecting infrared radiation, an intermediate layer absorbing infrared radiation, an intermediate layer absorbing UV radiation, a colored intermediate layer and / or a tinted intermediate layer.
  • the thermoplastic intermediate layer is a functional intermediate layer with acoustically damping properties.
  • Such an acoustic intermediate layer comprises a first layer, a second layer and a third layer arranged between them, which has a higher plasticity than the first layer and the second layer, for example as a result of a higher proportion of plasticizers.
  • the thermoplastic intermediate layer is a functional intermediate layer with acoustically damping properties and the thickness of the third layer is 0.10 mm and the thickness of the first layer and the second layer is 0.20 mm in each case. In a further embodiment, the thickness of the third layer is 0.08 mm to 0.12 mm and the thickness of the first layer and the second layer is in each case 0.32 mm to 0.38 mm.
  • the thermoplastic intermediate layer is a functional intermediate layer with a color function.
  • the thermoplastic intermediate layer is colored or tinted.
  • the coloring or tinting is designed such that the composite pane has a light transmission of greater than 70% in the spectral range from 380 nm to 780 nm.
  • the coloring or tinting can also be darker and the composite panes thus have a light transmission of 70% or less in the spectral range from 380 nm to 780 nm. It goes without saying that in embodiments in the case of a windshield, the transmission outside the visible area, in particular in the area adjacent to the roof edge, can also be less than 70%.
  • thermoplastic intermediate layer is a functional intermediate layer with a solar function, in particular with properties that absorb infrared radiation, such as, for example, a PVB film in which indium tin oxide (ITO) particles are contained.
  • a solar function in particular with properties that absorb infrared radiation, such as, for example, a PVB film in which indium tin oxide (ITO) particles are contained.
  • ITO indium tin oxide
  • the thermoplastic intermediate layer is designed as an element reflecting infrared radiation, for example as an bilayer comprising infrared radiation comprising a first layer and a carrier film arranged thereon with a coating reflecting infrared radiation, or a trilayer reflecting infrared radiation comprising a first layer, a second layer and an intermediate layer Carrier film with coating reflecting infrared radiation.
  • the thermoplastic intermediate layer can also be a functional intermediate layer in which two or more functional properties are combined, for example acoustically damping properties with a color function and / or a solar function.
  • the composite pane according to the invention can include additional further intermediate layers, in particular functional intermediate layers. These are arranged between the outer pane and the thermoplastic intermediate layer or between the inner pane and the thermoplastic intermediate layer. If the composite pane according to the invention has two or more additional intermediate layers, it is also possible for at least one of the additional intermediate layers to be arranged between the outer pane and the thermoplastic intermediate layer and for at least one of the additional intermediate layer to be arranged between the inner pane and the thermoplastic intermediate layer.
  • An additional intermediate layer can in particular be an element reflecting infrared radiation, an ultraviolet radiation absorbing layer, a tinted or colored layer, a barrier layer or a combination thereof. If there are several additional intermediate layers, these can also have different functions.
  • the outer pane and / or the inner pane is a float glass with a wedge-shaped cross section produced using the float glass process. It can be, for example, a quartz glass, borosilicate glass, aluminosilicate glass or preferably a soda-lime glass.
  • the inner pane has an essentially constant thickness and can be made of soda-lime glass, as is customary for window panes, using the float glass process.
  • the inner pane can also be made from other types of glass, for example quartz glass, borosilicate glass or aluminosilicate glass.
  • the inner pane in this case can also not be produced using the float glass process and made of rigid, clear plastics, for example polycarbonate or polymethyl methacrylate.
  • the outer pane has an essentially constant thickness and can be made of soda-lime glass, as is customary for window panes, using the float glass process.
  • the outer pane can also be made from other types of glass, for example quartz glass, borosilicate glass or aluminosilicate glass.
  • the outer pane in this case cannot be produced using the float glass process and can be made of rigid, clear plastics, for example polycarbonate or polymethyl methacrylate.
  • the outer pane and / or the inner pane can have anti-reflective coatings, non-stick coatings, anti-scratch coatings, photocatalytic coatings, electrically heatable coatings, sun protection coatings and / or low-E coatings.
  • the thickness of the outer pane and the inner pane can vary widely and can thus be adapted to individual requirements.
  • the outer pane and the inner pane preferably have thicknesses of 1 mm to 5 mm, particularly preferably from 1 mm to 3 mm, with wedge-shaped panes with thickness having the greatest thickness, i.e. in the case of wedge-shaped disks, the thickness at the thicker first end is meant.
  • the outer pane is 2.1 mm thick and the inner pane is 1.6 mm thick.
  • the outer pane or in particular the inner pane can also be thin glass with a thickness of, for example, 0.55 mm.
  • the height of the outer pane and the inner pane i.e. in the case of a windshield, the distance between the roof edge of the composite pane and the motor edge of the composite pane is preferably between 0.8 m and 1.40 m, particularly preferably between 0.9 m and 1.25 m. It goes without saying that the height of the thermoplastic intermediate layer and the optional additional intermediate layers is therefore preferably between 0.8 m and 1.40 m, particularly preferably between 0.9 m and 1.25 m.
  • the composite pane according to the invention can be a vehicle pane.
  • a vehicle window is provided to separate a vehicle interior from an external environment.
  • a vehicle window is therefore a window pane which is inserted into a window opening in the vehicle body or is provided for this purpose.
  • a Composite pane according to the invention is in particular a windshield of a motor vehicle.
  • the inner window is the window which is intended to face the interior of the vehicle in the installed position.
  • the outer pane is the pane which is intended to face the external environment of the vehicle in the installed position.
  • the outer pane and the inner pane can, independently of one another, be clear and colorless, but also tinted, cloudy or colored.
  • the total transmission through the composite pane is greater than 70%, in particular if the composite pane is a windshield.
  • the term total transmission refers to the procedure for testing the light transmission of motor vehicle windows as defined by ECE-R 43, Appendix 3, ⁇ 9.1.
  • the outer pane and the inner pane can consist of non-toughened, partially toughened or toughened glass.
  • a composite pane according to the invention can additionally comprise a cover print, in particular made of a dark, preferably black, enamel.
  • the masking print is in particular a peripheral, i.e. frame-like, masking print.
  • the peripheral masking print serves primarily as UV protection for the assembly adhesive of the composite pane.
  • the masking print can be opaque and cover the entire surface.
  • the masking print can also be semitransparent, at least in sections, for example as a dot pattern, strip pattern or checkered pattern.
  • the cover print can also have a gradient, for example from an opaque cover to a semi-transparent cover.
  • the masking pressure is usually applied to the interior surface of the outer pane or to the interior surface of the inner pane.
  • the composite pane according to the invention is preferably bent in one or more directions of space, as is customary for motor vehicle panes, typical radii of curvature being in the range from approximately 10 cm to approximately 40 m.
  • the laminated glass can also be flat, for example if it is intended as a pane for buses, trains or tractors.
  • the composite pane according to the invention can be used as a head-up display (HUD) for displaying information, ie the composite pane according to the invention is in particular a composite pane for a head-up display.
  • HUD head-up display
  • the invention also relates to a projection arrangement for a head-up display (HUD) at least comprising a composite pane according to the invention and a projector.
  • HUD head-up display
  • the projector illuminates an area of the windshield where the radiation is reflected in the direction of the viewer (driver), which creates a virtual image that the viewer sees from behind the windshield.
  • the area of the windshield that can be irradiated by the projector is referred to as the HUD area.
  • the beam direction of the projector can typically be varied by mirrors, in particular vertically, in order to adapt the projection to the size of the viewer.
  • the area in which the viewer's eyes must be at a given mirror position is called the eyebox window.
  • This eyebox window can be moved vertically by adjusting the mirrors, the entire area accessible thereby (ie the overlay of all possible eyebox windows) being referred to as an eyebox.
  • An observer inside the eyebox can perceive the virtual image. Of course, this means that the viewer's eyes have to be inside the eyebox, not the entire body.
  • thermoplastic layer which is made by extrusion, has a substantially constant length and width thickness, and the surfaces of which have a plurality of elongated protrusions and depressions extending along a third direction and in one to the other third direction vertical fourth direction are arranged alternately;
  • thermoplastic intermediate layer Arranging the thermoplastic intermediate layer in a planar manner between the outer pane and the inner pane in such a way that the elongate elevations of the thermoplastic intermediate layer are at an angle of 45 ° to 90 ° to the elongate elevations of the outer pane, which is produced in the form of a float process and has a wedge-shaped cross section / or inner pane are arranged;
  • thermoplastic intermediate layer in step (c) is arranged flat between the outer pane and the inner pane in such a way that the elongate elevations of the thermoplastic intermediate layer are entirely at an angle of 60 ° to 90 °, preferably 75 ° to 90 ° particularly preferably 90 °, to the elongated elevations of the outer pane and / or inner pane, which is designed in the form of a flat glass produced in the float process and has a wedge-shaped cross section.
  • the method according to the invention can additionally comprise the steps of providing at least one additional intermediate layer and arranging this between the first thermoplastic layer and the second thermoplastic layer.
  • the at least one additional intermediate layer can in particular be an IR-reflecting layer, a UV-radiation-absorbing layer, a tinted or colored layer, a barrier layer or a combination thereof. If there are several additional intermediate layers, these can also have different functions.
  • the composite pane is to be curved, the outer pane and the inner pane are preferably subjected to a bending process before the lamination.
  • the outer pane and the inner pane are preferably bent congruently together (ie at the same time and by the same tool), because this way the shape of the panes are optimally coordinated with one another for the later lamination.
  • Typical temperatures for glass bending processes are, for example, 500 ° C to 700 ° C.
  • the composite pane according to the invention can be used, for example, as a head-up display (HUD) for displaying information.
  • HUD head-up display
  • the invention also relates to the use of a composite pane according to the invention as a vehicle pane in means of transportation for traffic on land, in the air or on water, in particular in motor vehicles and in particular as a windshield, which serves as the projection surface of a projection arrangement for a head-up display.
  • FIG. 2 shows a cross-sectional view of a single disc produced in the float process with a wedge-shaped cross section along the section line X-X 'shown in FIG. 1;
  • thermoplastic intermediate layer partially unwound from a roll
  • FIG. 4 shows a detail of a cross-sectional view of an embodiment of the thermoplastic intermediate layer along the section line AA shown in FIG. 3; 5 shows a section of a cross-sectional view of a further embodiment of the thermoplastic intermediate layer;
  • Fig. 6 is a schematic representation of an arrangement of individual panes with a wedge-shaped cross section made of flat glass for the float process
  • FIG. 7 shows a schematic illustration of a further arrangement of individual panes with a wedge-shaped cross section made of flat glass produced in the float process
  • Fig. 8 is an exploded view of an embodiment of an inventive
  • FIG. 9 shows an exploded view of a further embodiment of a composite pane according to the invention.
  • FIG. 10 shows an exploded view of a further embodiment of a composite pane according to the invention
  • FIG. 11 is an exploded view of a further embodiment of a composite pane according to the invention.
  • FIG. 12 shows a composite pane, in particular a windshield of a motor vehicle, according to an embodiment of the invention
  • FIG. 14 shows a flow diagram of an embodiment of the method according to the invention.
  • the first direction R1 corresponds to the pulling direction of the glass ribbon 21 in the float process.
  • the second direction R2 is perpendicular to the first direction R1.
  • FIG. 2 shows a cross-sectional view of a single disc with a wedge-shaped cross section 5 produced in the float process along the section line XX ′ shown in FIG. 1.
  • the individual pane 5 shown in FIG. 2 can be, for example, the outer pane 2 of a laminated glass 1 according to the invention.
  • the individual pane 5 shown in FIG. 2 can also be the inner pane 3 of a laminated glass according to the invention 1 act.
  • both the outer pane 2 and the inner pane 3 can also be formed as shown in FIG. 2.
  • the single pane 5 shown in FIG. 2 has elevations 8 and depressions 9 on the surfaces 12, 12 ', which extend perpendicular to a shortest connecting line between the upper side O and the lower side U.
  • the single disk shown in FIG. 2 has, for example, a thickness of 2.1 mm and a wedge angle of 0.7 mrad.
  • FIG. 3 shows a schematic illustration of a thermoplastic intermediate layer 4 partially unwound from a roll 15.
  • the thermoplastic intermediate layer 4 is preferably made of PVB.
  • the thermoplastic intermediate layer 4 can consist of another suitable material such as polyamide or polyethylene.
  • the thermoplastic intermediate layer 4 is produced by extrusion, the direction of extrusion of the thermoplastic intermediate layer 4 corresponding to the winding or unwinding direction of the roll 15. In Fig. 3, the direction of extrusion or unwinding is indicated by the arrow R3.
  • FIG. 4 shows a section of a cross-sectional view of the thermoplastic intermediate layer 4 according to the section line A-A drawn in FIG. 3. It can be seen that the thickness of the thermoplastic intermediate layer 4 is essentially constant over the length and the width. The thickness of the thermoplastic intermediate layer 4 is, for example, 0.76 mm.
  • the surfaces 13, 13 ′ of the thermoplastic intermediate layer 4 have a plurality of elongate elevations 10 projecting from the surface and elongated depressions 11 that deepen the surface in a parallel arrangement.
  • the elevations 10 and depressions 11 each extend in the extrusion direction R3 (not shown in FIG. 4).
  • the elevations 10 and depressions 11 are arranged alternately transversely to the extrusion direction, that is to say in the direction R4.
  • the elevations 10 and depressions 11 are wave-shaped, so that the surfaces 13, 13 'of the thermoplastic intermediate layer 4 have an undulation.
  • the top side O and the bottom side U of the thermoplastic intermediate layer 4 are also identified in FIG. 4.
  • thermoplastic intermediate layer 4 shows a section of a cross-sectional view of an embodiment of the thermoplastic intermediate layer 4. It can be seen that the thermoplastic intermediate layer 4 comprises a first layer 6a, a second layer 6b and a third layer 6c arranged between the first layer 6a and the second layer 6b , in which the third layer 6c has acoustically damping properties.
  • the thicknesses of the first layer 6a, the second layer 6b, the third layer 6c and the total thickness of the thermoplastic intermediate layer 4 are in each case essentially constant over the length and the width.
  • the total thickness of the thermoplastic intermediate layer 4 is, for example, 0.84 mm.
  • the surfaces 13, 13 'of the thermoplastic intermediate layer 4 have a plurality of elongate elevations 10 protruding from the surface and elongated depressions 11 deepening the surface in a parallel arrangement.
  • the elevations 10 and depressions 11 each extend in the extrusion direction R3 (not shown in FIG. 5).
  • the elevations 10 and depressions 11 are arranged alternately transversely to the extrusion direction, that is to say in the direction R4.
  • the elevations 10 and depressions 11 are wave-shaped, so that the surfaces 13, 13 'of the thermoplastic intermediate layer 4 have an undulation.
  • thermoplastic film 4 is cut to length from a roll 15 in this way that, in the installed state, the pane edges extending in the transverse direction of the vehicle are arranged perpendicular to the extrusion direction R3.
  • the elevations 10 and depressions 11 of the thermoplastic intermediate layer 4 are rotated by 90 ° to the direction R1 and thus rotated by 90 ° to the elevations 8 and depressions 9 of the individual disks 5 arranged.
  • FIG. 7 shows a schematic representation of a further arrangement of individual panes with a wedge-shaped cross section 5 made of flat glass produced in the float process for cutting the thermoplastic intermediate layer 4 from FIG. 4 to produce a composite pane 1 according to the invention.
  • the thermoplastic film 4 is rolled from a roll 15 cut to length that the window edges extending in the installed direction in the transverse direction of the vehicle are arranged at an angle of 45 ° to the extrusion direction R3.
  • the composite pane 1 comprises an outer pane 2 and an inner pane 3 and a thermoplastic intermediate layer 4 arranged therebetween.
  • the thermoplastic intermediate layer 4 has a plurality of elongate elevations 10 projecting from the surfaces 13, 13 'and elongated depressions 1 1 in parallel arrangement.
  • the elevations 10 and depressions 1 1 each extend along a direction which is designated by the arrow R3 in FIG. 8.
  • the elevations 10 and depressions 11 are arranged alternately transversely to the direction R3.
  • the elevations 10 and depressions 1 1 are wave-shaped.
  • the outer pane 2 and the inner pane 3 are designed as wedge-shaped flat glass 5 produced in the float process and, due to the manufacture, have a plurality of elongate elevations 8 protruding from the surface and elongated depressions 9 deepening the surface in a parallel arrangement.
  • the elevations 8 and depressions 9 each extend along a direction which is designated by the arrow R1 in FIG. 8.
  • the elevations 8 and depressions 9 are arranged alternately to the direction R1.
  • the elevations 8 and depressions 9 are wave-shaped.
  • thermoplastic intermediate layer 4 and the outer pane 2 and the inner pane 3 are arranged such that the elevations 10 and depressions 11 of the thermoplastic intermediate layer 4 are around 90 ° rotated to the direction R1 and thus rotated by 90 ° to the elevations 8 and depressions 9 of the outer pane 2 and the inner pane 3 are arranged.
  • FIG. 9 shows an exploded view of a further embodiment of a composite pane 1 according to the invention.
  • the embodiment shown in FIG. 9 differs from that shown in FIG. 8 only in that the thermoplastic intermediate layer 4 and the outer pane 2 and the inner pane 3 are arranged such that the elevations 10 and depressions 11 of the thermoplastic intermediate layer 4 rotated by 45 ° to the direction R1 and thus rotated by 45 ° to the elevations 8 and depressions 9 of the outer pane 2 and the inner pane 3 are arranged.
  • 10 shows an exploded view of a further embodiment of a composite pane 1 according to the invention.
  • the composite pane 1 comprises an outer pane 2 and an inner pane 3 and an intermediate thermoplastic layer 4.
  • the thermoplastic intermediate layer 4 has a plurality of protruding surfaces 13, 13 'due to the manufacturing process , elongated elevations 10 and the surface-deepening, elongated depressions 1 1 in a parallel arrangement.
  • the elevations 10 and depressions 11 each extend along a direction which is designated by the arrow R3 in FIG. 10.
  • the elevations 10 and depressions 11 are arranged alternately transversely to the direction R3.
  • the elevations 10 and depressions 1 1 are wave-shaped.
  • the outer pane 2 is designed as a wedge-shaped flat glass 5 produced in the float process and, due to the manufacturing process, has a plurality of elongate elevations 8 projecting from the surfaces 12, 12 ′ and the elongated depressions 9 deepening the surface in a parallel arrangement.
  • the elevations 8 and depressions 9 each extend along a direction which is designated by the arrow R1 in FIG. 10.
  • the elevations 8 and depressions 9 are arranged alternately to the direction R1.
  • the elevations 8 and depressions 9 are wave-shaped.
  • thermoplastic intermediate layer 4 and the outer pane 2 are arranged such that the elevations 10 and depressions 11 of the thermoplastic intermediate layer 4 are rotated by 90 ° to the direction R1 and thus rotated by 90 ° to the elevations 8 and depressions 9 of the outer pane 2 are arranged.
  • the inner pane 3 is designed as a flat glass with a constant thickness 7 produced in the float process.
  • This has float lines, i.e. Elevations 19 and depressions 20 extending along a fifth direction R5 and transverse to the fifth direction R5, i.e. are arranged alternately in a sixth direction R6.
  • the elevations 19 and depressions 20 are wave-shaped.
  • FIG. 1 1 shows an exploded view of a further embodiment of a composite pane 1 according to the invention.
  • the embodiment shown in FIG. 1 1 differs from the one shown in FIG. 10 only in that the thermoplastic intermediate layer 4 and the outer pane 2 are arranged in such a way that that the elevations 10 and depressions 11 of the thermoplastic intermediate layer 4 are rotated by 45 ° to the direction R1 and thus rotated by 45 ° to the elevations 8 and depressions 9 of the outer pane 2.
  • FIG. 12 shows an embodiment of a composite pane 1 according to the invention, in particular for use as a windshield of a motor vehicle.
  • the configuration shown in FIG. 12 corresponds to the configuration shown in FIG. 8.
  • the outer pane 2 and the inner pane 3 are designed as shown in FIG. 2 and the thermoplastic intermediate layer 4 is designed as in FIG. 4.
  • the composite pane 1 comprises an outer pane 2, an inner pane 3 and a thermoplastic intermediate layer 4.
  • the composite pane 1 has four pane edges, namely an upper pane edge O and a lower pane edge U, which in the installed state are in (vehicle -) extend transversely, and two side window edges S, which extend in the installed state in the (vehicle) vertical direction.
  • the elevations 8 and depressions 9 of the outer pane 2, which are designed in the form of a flat glass with a wedge-shaped cross section 5, and the elevations 8 and depressions 9, which are formed in the form of a flat glass with a wedge-shaped cross section 5 and which are formed in the float process, extend in the in the Fig. 12 embodiment shown along a shortest connecting line between the side disc edges S (denoted by R1).
  • the elevations 10 and depressions 11 of the thermoplastic intermediate layer 4 extend along a shortest connecting line between the lower pane edge U and the upper pane edge O (i.e. the extrusion direction of the thermoplastic intermediate layer 4; denoted by R3).
  • the projection arrangement 16 comprises a composite pane 1 according to the invention, in particular the windshield of a passenger car.
  • the outer pane 2 and the inner pane 3 are designed, for example, as shown in FIG. 2, and the thermoplastic intermediate layer 4 is designed as in FIG. 4.
  • the projection arrangement 16 also comprises a projector 17, which is directed onto an area B of the composite pane 1.
  • area B which is usually referred to as the HUD area
  • the projector 17 can generate images which are generated by one Viewers 18 (vehicle drivers) are perceived as virtual images on the side of the composite pane 1 facing away from them when their eyes are within the so-called eyebox E.
  • FIG. 14 shows a flow diagram of an embodiment of the method according to the invention for producing a composite pane 1 according to the invention.
  • the method comprises providing an outer pane 2 and an inner pane 3, the outer pane 2 and / or the inner pane 3 being designed in the form of a flat glass with a wedge-shaped cross section 5 produced in the float process and one on the pane surfaces 12, 12 ' Has a plurality of elongated elevations 8 and elongated depressions 9 which extend along a first disk direction R1 and are alternately arranged in a second disk direction R2 perpendicular to the first disk direction R1.
  • the method comprises the provision of a thermoplastic intermediate layer 4, which is produced in the extrusion process, has a thickness that is substantially constant over the length and the width, and the surfaces 13, 13 'of which comprise a plurality of elongate elevations 10 and elongate depressions 1 1, which extend along a third direction R3 and are arranged alternately in a fourth direction R4 perpendicular to the third direction R3
  • the method comprises the flat arrangement of the thermoplastic intermediate layer 4 between the outer pane 2 and the inner pane 3 such that the elongated elevations 10 of the thermoplastic intermediate layer 4 are at an angle of 45 ° to 90 °, preferably 60 ° to 90 ° , particularly preferably 75 ° to 90 °, to the elongate elevations 8 of the outer pane 2 and / or inner pane 3 formed in the form of a flat glass having a wedge-shaped cross section 5 and manufactured in the float process.
  • the method comprises connecting the outer pane 2, the thermoplastic intermediate layer 4 and the inner pane 3 by lamination.
  • the outer pane 2, the inner pane 3 and the composite pane 1 are shown as flat for the sake of simplicity. If the composite pane 1 is a This is the windshield and its outer pane 2 and inner pane 3 are preferably bent in one or more directions of space, as is customary for motor vehicle windows, typical radii of curvature being in the range from approximately 10 cm to approximately 40 m.
  • thermoplastic intermediate layer 13, 13 'surface of the thermoplastic intermediate layer

Landscapes

  • Joining Of Glass To Other Materials (AREA)

Abstract

La présente invention concerne une vitre feuilletée (1) qui comprend une vitre extérieure (2), une vitre intérieure (3) et une couche intermédiaire thermoplastique (4) agencée entre la vitre extérieure (2) et la vitre intérieure (3). La vitre extérieure (2) et/ou la vitre intérieure (3) est réalisée sous la forme d'un verre plat produit par un procédé float et présentant une section transversale (5) cunéiforme, et présente sur la surface (12, 12') de la vitre une pluralité d'élévations longitudinales (8) et de dépressions longitudinales (9) qui s'étendent dans une première direction (R1) de la vitre et qui sont agencées en alternance dans une deuxième direction (R2) de la vitre perpendiculaire à la première direction (R1). La couche intermédiaire thermoplastique (4) est fabriquée par un procédé d'extrusion, présente une épaisseur sensiblement constante sur la longueur et sur la largeur, et présente sur la surface (13, 13') une pluralité d'élévations longitudinales (10) et de dépressions longitudinales (11) qui s'étendent dans une troisième direction (R3) de la vitre et qui sont agencées en alternance dans une quatrième direction (R4) de la vitre perpendiculaire à la troisième direction (R3). La couche intermédiaire thermoplastique (4) est agencée de telle manière que les élévations longitudinales (10) de la couche intermédiaire thermoplastique (4) sont agencées à un angle de 45° à 90° par rapport aux élévations longitudinales (8) de la vitre extérieure (2) et/ou de la vitre intérieure (3) réalisée sous la forme d'un verre plat produit par un procédé float et présentant une section transversale (5) cunéiforme.
PCT/EP2019/079132 2018-11-05 2019-10-25 Vitre feuilletée présentant une section transversale cunéiforme Ceased WO2020094420A1 (fr)

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CN113031276B (zh) 2021-03-29 2022-05-10 福耀玻璃工业集团股份有限公司 一种抬头显示系统
CN113238378B (zh) 2021-04-14 2022-07-19 福耀玻璃工业集团股份有限公司 一种抬头显示系统

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EP0420228B1 (fr) 1989-09-28 1995-03-08 Hughes Aircraft Company Afficheur tête haute sans ghost pour automobile avec pare-brise biseauté
DE19535053A1 (de) 1994-10-04 1996-04-11 Volkswagen Ag Gekrümmte Verbundscheibe
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US7122242B2 (en) 2002-04-05 2006-10-17 Ppg Industries Ohio, Inc. Wedge shaped glass and methods of forming wedged glass
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DE102012211729A1 (de) 2012-07-05 2014-01-09 Bayerische Motoren Werke Aktiengesellschaft Kamerasystem zum Erfassen der Position eines Fahrers eines Kraftfahrzeugs
US20160151996A1 (en) * 2013-08-01 2016-06-02 Sekisui Chemical Co., Ltd. Vehicle front glass
WO2015086234A1 (fr) 2013-12-12 2015-06-18 Saint-Gobain Glass France Film thermoplastique pour vitrage feuilleté pourvu d'une couche intermédiaire cunéiforme non linéairement continue sur certaines parties dans une direction verticale
WO2015086233A1 (fr) 2013-12-12 2015-06-18 Saint-Gobain Glass France Film thermoplastique pour vitrage feuilleté pourvu d'une couche intermédiaire d'amincissement non linéairement continue sur certaines parties dans une direction verticale et horizontale
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