WO2021254911A1 - Couche intermédiaire multicouche cunéiforme présentant des propriétés d'amortissement acoustique - Google Patents

Couche intermédiaire multicouche cunéiforme présentant des propriétés d'amortissement acoustique Download PDF

Info

Publication number
WO2021254911A1
WO2021254911A1 PCT/EP2021/065823 EP2021065823W WO2021254911A1 WO 2021254911 A1 WO2021254911 A1 WO 2021254911A1 EP 2021065823 W EP2021065823 W EP 2021065823W WO 2021254911 A1 WO2021254911 A1 WO 2021254911A1
Authority
WO
WIPO (PCT)
Prior art keywords
layer
thermoplastic
wedge
protective layer
pane
Prior art date
Application number
PCT/EP2021/065823
Other languages
German (de)
English (en)
Inventor
Stephan GIER
Valentin SCHULZ
Original Assignee
Saint-Gobain Glass France
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 filed Critical Saint-Gobain Glass France
Priority to CN202180002569.XA priority Critical patent/CN114126857A/zh
Publication of WO2021254911A1 publication Critical patent/WO2021254911A1/fr

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
    • 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
    • B32B17/10165—Functional features of the laminated safety glass or glazing
    • B32B17/10174—Coatings of a metallic or dielectric material on a constituent layer of glass or polymer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/10165—Functional features of the laminated safety glass or glazing
    • B32B17/10339—Specific parts of the laminated safety glass or glazing being colored or tinted
    • B32B17/10348—Specific parts of the laminated safety glass or glazing being colored or tinted comprising an obscuration band
    • 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
    • B32B17/10568—Shape of the cross-section varying in thickness
    • 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
    • B32B17/10651—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 comprising colorants, e.g. dyes or pigments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/1055—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer
    • B32B17/10743—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer containing acrylate (co)polymers or salts thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/1055—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer
    • B32B17/10761—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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/40—Layered products comprising a layer of synthetic resin comprising polyurethanes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/42—Layered products comprising a layer of synthetic resin comprising condensation resins of aldehydes, e.g. with phenols, ureas or melamines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
    • B60J1/00—Windows; Windscreens; Accessories therefor
    • B60J1/02—Windows; Windscreens; Accessories therefor arranged at the vehicle front, e.g. structure of the glazing, mounting of the 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
    • B32B2250/00—Layers arrangement
    • B32B2250/04—4 layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00—Coating on the layer surface
    • B32B2255/10—Coating on the layer surface on synthetic resin layer or on natural or synthetic rubber 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/10—Properties of the layers or laminate having particular acoustical properties
    • B32B2307/102—Insulating

Definitions

  • the invention relates to a wedge-shaped multilayer intermediate layer with acoustically damping properties, a composite pane having such an intermediate layer, a method for its production and its use.
  • Laminated glass panes are used in many places today, especially in vehicle construction.
  • vehicle includes, among other things, road vehicles, aircraft, ships, agricultural machines and also work equipment.
  • Laminated glass 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 laminated glass pane generally has two panes that are laminated onto an intermediate layer.
  • the disks themselves can have a curvature and are generally of constant thickness.
  • the intermediate layer usually comprises a thermoplastic material, preferably polyvinyl butyral (PVB), of a predetermined thickness, e.g. 0.76 mm.
  • PVB polyvinyl butyral
  • Laminated glass panes are also often used as a head-up display (HUD) to display information.
  • An image is projected onto the laminated glass panes by means of a projection device in order to show information into the field of vision for the viewer.
  • the projection device is arranged, for example, on the dashboard, so that the projected image is reflected in the direction of the viewer on the closest glass surface of the laminated glass pane inclined towards the viewer (cf., for example, the European patent EP 0420228 B1 or the German patent application DE 10 2012 211 729 A1).
  • part of the light enters the laminated glass panes and is now reflected, for example, at the outer boundary layer of the glass surface which is further outward as seen from the observer, and then exits the laminated glass pane in an offset manner.
  • a similar effect occurs, the effect of ghost images, in relation to the image to be displayed.
  • a pure classical compensation of ghost images leads to an overcompensation for double images in transmission to be observed. This leads to the fact that the respective viewer is irritated or, in the worst case, receives incorrect information. So far, attempts have been made to solve this problem by arranging the surfaces of the panes no longer 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-linear increasing and / or decreasing thickness. In vehicle construction, the thickness is typically varied so that the smallest thickness is provided at the lower end of the laminated glass pane towards the engine compartment, while the thickness increases towards the roof.
  • Laminated glass panes of this type with a wedge-shaped intermediate layer and the optical laws on which they are based are known per se and are described, for example, in the international patent applications WO 2015/086234 A1 and WO 2015/086233 A1 or the German patent applications DE 196 11 483 A1 and DE 195 35 053 A1.
  • a multilayer intermediate layer comprising an acoustically damping layer arranged between two protective layers is usually laminated between the two panes of the composite pane.
  • WO 2018/081570 A1 disclose wedge-shaped multilayer intermediate layers which comprise a layer of constant thickness and a layer with a wedge-shaped cross section, the layer of constant thickness comprises an acoustically damping layer arranged between two protective layers.
  • a composite pane is known from WO 2014/174308 A1 which has a darkening strip in the form of a cover print. The darkening band extends in the circumferential area (i.e. in the circumferential outer edge area) of the pane and is made from an opaque ceramic ink that is applied to the pane.
  • the cover print hides the top view of any adhesive bead or sections of a frame, such as the body of a vehicle, when the laminated pane is arranged in a vehicle or in building glazing. Furthermore, the cover print conceals or conceals coating-free sections or coating-free edge areas, in particular the sun protection coating.
  • the ceramic ink is burned onto the surface at higher temperatures (usually 450 ° C to 700 ° C, for example when bending the glass pane) and forms a glass-like coating (or an enamel).
  • this form of applying the masking print to a glass pane is difficult or not possible in the case of surface-coated glass.
  • undesirable discoloration or defects in the cover print or in the coatings can occur. Furthermore, there is an increased effort and thus increased costs in the production of the composite pane.
  • Burning in the ceramic ink at higher temperatures can lead to optical distortions in peripheral areas and in the area of sensor windows.
  • US 2017/297310 A1 discloses a composite pane comprising two glass panes, two intermediate layers and a polyethylene terephthalate film, the two intermediate layers being arranged between the glass panes, the polyethylene terephthalate film being arranged between the two intermediate layers and the polyethylene terephthalate film having an opaque print .
  • the present invention is based on the object of providing a wedge-shaped multilayer intermediate layer with acoustically damping properties and an opaque layer.
  • the object of the present invention is achieved according to the invention by a wedge-shaped multilayer intermediate layer according to claim 1 and a method according to claim 11. Preferred designs emerge from the subclaims.
  • the wedge-shaped multilayer intermediate layer according to the invention comprises at least a first thermoplastic layer with a length, a width and an overall thickness and a second thermoplastic layer.
  • the first thermoplastic layer comprises a first protective layer having an inner side, an outer side and a first thickness, a second protective layer having an inner side, an outer side and a second thickness, and an acoustically damping layer arranged between the inner side of the first protective layer and the inner side of the second protective layer Layer having a third thickness, the thicknesses of the first protective layer, the second protective layer, the acoustically damping layer and the total thickness of the first thermoplastic layer in each case being essentially constant over the length and the width.
  • the first thermoplastic layer can also be a straight stretched layer with an essentially constant thickness.
  • the second thermoplastic layer has an inside and an outside and a wedge-shaped cross-section with a thicker first end and a thinner second end.
  • the inside of the second thermoplastic layer is arranged directly or indirectly adjacent to the outside of the first protective layer.
  • the second thermoplastic layer can be a wedge-shaped extruded thermoplastic intermediate layer or a wedge-shaped stretched thermoplastic intermediate layer.
  • the first protective layer has on its outside, the second protective layer on its outside or the second thermoplastic layer on its inside or on its outside in at least one area a printed opaque layer.
  • the printed opaque layer can also be referred to as an opaque print.
  • Such opaque layers are well known to the person skilled in the art, for example from US9623634 B2, WO2018 / 122770 A1, WO2019 / 038043 A1, EP 1 322 482 B2, US2014212639 A1.
  • the opaque layer differs from a conventional cover print, which is printed on a surface of the glass panes (for example by screen printing) and is baked in at high temperatures in one process step. “Inside of the first protective layer” refers to the side of the first protective layer that is arranged directly adjacent to the acoustically damping layer and “outside of the first protective layer” refers to the side of the first protective layer that is opposite the inside.
  • the “inside of the second protective layer” refers to the side of the second protective layer that is arranged directly adjacent to the acoustically damping layer and “outside of the second protective layer” refers to the side of the second protective layer that is opposite the inside.
  • “Inside of the second thermoplastic layer” refers to the side of the second thermoplastic layer that directly or indirectly adjoins the outside of the first protective layer and “outside of the second thermoplastic layer” refers to the side of the second thermoplastic layer that is opposite the inside . “Indirect” adjoining is to be understood as meaning that a further layer is arranged between the inside of the second thermoplastic layer and the outside of the first protective layer.
  • the inside of the second thermoplastic layer directly or indirectly adjoins the outside of the first protective layer and the first protective layer on its outside or the second thermoplastic layer on its inside has the printed opaque layer in at least one area. Because the opaque layer is arranged inside the wedge-shaped multilayer intermediate layer in such embodiments, it has no influence on the adhesion and / or adhesive properties of the outer surfaces, ie the outside of the second protective layer or the outside of the second thermoplastic layer, the wedge-shaped multilayer intermediate layer.
  • the opaque layer is essentially completely opaque to visible light.
  • the opaque layer preferably has a transmission T ⁇ 0.2 and in particular T ⁇ 0.1.
  • the opaque layer is preferably black, but can also have any other color.
  • the opaque layer preferably contains colored pigments or dyes, particularly preferably inorganic or organic colored pigments or dyes, in particular selected from the group consisting of carbon black (called carbon black), iron oxide pigments and mixed-phase oxide pigments.
  • the mixed-phase oxide pigments include, for example, titanate pigments and spinel pigments.
  • the color pigments or dyes are advantageously applied to the thermoplastic intermediate layer in a water- or solvent-based composition and preferably dried.
  • the color pigments or dyes can be applied to the thermoplastic intermediate layer by means of spray processes, screen printing, inkjet processes or other suitable printing processes.
  • composition with which the opaque layer is printed on contains in particular no glass-forming oxides or glass frits or other components which, after drying and after lamination of the wedge-shaped multilayer intermediate layer between a first pane and a second pane, lead to a glass-like layer.
  • the opaque layer is not glass-like and contains no enamel or is not enamel.
  • the opaque layer printed on is arranged in an edge region surrounding the wedge-shaped multilayer intermediate layer.
  • the width of the edge area is preferably 20 mm to 150 mm. It is also possible for individual sections of the circumferential edge area to be wider than other sections.
  • the printed opaque layer can be arranged on the side edges and on the upper edge in a 20 mm wide border area and on the lower edge the printed opaque layer can be arranged in a 100 mm wide border area.
  • the wedge-shaped multilayer intermediate layer has at least one sensor window for an optical sensor and the opaque layer printed on is arranged in an area surrounding the sensor window.
  • the imprinted opaque layer can also be arranged both in an edge area surrounding the wedge-shaped multilayer intermediate layer and in an area surrounding the sensor window.
  • the opaque layer is preferably printed on a maximum of 30%, particularly preferably a maximum of 10%, very particularly preferably a maximum of 5% of the area of the wedge-shaped multilayer intermediate layer.
  • the wedge-shaped multilayer intermediate layer in particular that layer on which the opaque layer is printed, has a surface roughness Rz of a maximum of 50 ⁇ m (micrometers), preferably of a maximum of 20 ⁇ m, particularly preferably of 10 ⁇ m.
  • the surfaces of the wedge-shaped multilayer intermediate layer on which the opaque layer is printed are preferably not embossed. Such smooth film surfaces can be printed with particularly precise and sharp edges.
  • Rz is defined here as the mean roughness depth, i.e. the sum of the height of the largest profile peak and the depth of the largest profile valley within a single measurement section Ir.
  • the opaque layer has a thickness of 5 ⁇ m (micrometers) to 40 ⁇ m, preferably 5 ⁇ m to 20 ⁇ m.
  • Opaque layers with such thicknesses are easy to produce, have sufficient covering power and wedge-shaped multilayer intermediate layers according to the invention with such opaque layers can be laminated into a composite pane without further leveling layers or leveling foils.
  • the opaque layer can also be printed on several surfaces of the wedge-shaped multilayer intermediate layer.
  • the opaque layer is printed on several surfaces, then preferably in staggered sections. This has the advantage that the overall thickness of the wedge-shaped multilayer intermediate layer with the opaque layer remains smaller and is easier to laminate between two panes.
  • an essentially constant thickness of a layer is to be understood as meaning that the thickness of the layer is constant over the length and width within the framework of normal manufacturing tolerances. This preferably means that the thickness varies by no more than 7%, preferably by no more than 5%, particularly preferably by no more than 3%.
  • the wedge angle of the second layer is 0.1 mrad to 1.0 mrad, preferably 0.3 mrad to 0.7 mrad.
  • the thicker first end of the wedge-shaped multilayer intermediate layer according to the invention can in particular have a thickness of 2 mm or less.
  • the thinner second end of the wedge-shaped multilayer intermediate layer according to the invention can in particular have a thickness of 0.30 mm or more, preferably of 0.40 mm or more.
  • the acoustically damping layer preferably has a thickness of 0.05 mm to 0.20 mm and the first protective layer and the second protective layer preferably each have a thickness of 0.10 mm to 0.40 mm, the total thickness of the first thermoplastic Layer is preferably between 0.3 mm and 0.90 mm, for example 0.5 mm.
  • the first protective layer and the second protective layer have the same thickness.
  • the first protective layer and the second protective layer can also differ from one another in terms of their thickness.
  • the acoustically damping layer has a greater plasticity or elasticity than the protective layers surrounding it.
  • the first thermoplastic thus has a soft core, the rigidity of the layer structure increasing from the core of the acoustically damping layer to the outer surfaces of the first protective layer and the second protective layer.
  • the acoustically damping layer with higher elasticity is primarily responsible for the acoustic damping, while the first protective layer and the second protective layer of lower elasticity contribute significantly to the stabilization of the first thermoplastic layer.
  • the total thickness of the first thermoplastic layer can in particular be 0.5 mm.
  • the thickness of the acoustically damping layer can be 0.10 mm and the thickness of the first protective layer and the second protective layer can each be 0.20 mm.
  • the individual layers of the wedge-shaped multilayer intermediate layer according to the invention ie the first protective layer, the second protective layer, the acoustically damping layer and the second thermoplastic intermediate layer contain independently in one embodiment from each other at least polyvinyl butyral (PVB), ethylene vinyl acetate (EVA), polyurethane (PU), acrylates 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
  • acrylates or mixtures or copolymers or derivatives thereof preferably polyvinyl butyral (PVB), particularly preferably polyvinyl butyral (PVB) and plasticizers.
  • the individual layers of the wedge-shaped multilayer intermediate layer according to the invention are therefore thermoplastic layers.
  • the first protective layer, the acoustic damping layer and the second protective layer contain polyvinyl butyral and plasticizers.
  • the selection of the plasticizer and the degree of acetalization of the polyvinyl butyral make it possible to influence the elasticity of the polymeric layers in a manner known to the person skilled in the art.
  • the first protective layer, the second protective layer, the acoustically damping layer and / or the second thermoplastic intermediate layer can independently of one another be clear and colorless, but also tinted, cloudy or colored.
  • the layers can be tinted or colored over the entire surface. Alternatively, the layers can also have a color gradient or a colored pattern.
  • the coloring or tinting is designed in such a way that the composite pane has a light transmission of greater than 70% in the spectral range from 380 nm to 780 nm.
  • the color or tint can also be made 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 field of vision, in particular in the region adjoining the roof edge, can also be less than 70%.
  • the second thermoplastic layer which as described above has a wedge-shaped cross-section, is a colored layer
  • the light transmission through the second thermoplastic layer is also preferred over the entire width and the entire height, that is to say over the entire surface thereof , constant.
  • a constant light transmission in spite of a wedge-shaped cross section can be achieved in that the dye concentration in the second thermoplastic layer increases from the thicker end of the second thermoplastic layer to its thinner end.
  • the wedge-shaped multilayer intermediate layer additionally comprises at least one functional intermediate layer. This is arranged in particular between the first protective layer and the second thermoplastic layer. In this case, the outside of the first protective layer does not adjoin the inside of the second thermoplastic protective layer directly, but rather indirectly because of the at least one functional intermediate layer.
  • the at least one functional intermediate layer can in particular be an infrared radiation (IR) -reflective layer, an ultraviolet radiation (UV) -reflective layer, a tinted or colored layer, a barrier layer or a combination of these. If several functional intermediate layers are present, these can also have different functions.
  • IR infrared radiation
  • UV ultraviolet radiation
  • the first protective layer, the second protective layer or the second thermoplastic layer is designed as a multilayer film composite, at least comprising a first film with a thickness of at most 50 ⁇ m and a second film with a thickness of more than 50 ⁇ m, the first film has the printed opaque layer.
  • the first film and the second film can be arranged in the film composite in such a way that the opaque layer is arranged between the first film and the second film or, alternatively, in such a way that the opaque layer is printed on that surface of the first film that is in the film composite is not arranged adjacent to the second film.
  • the surface roughness of the first film is preferably a maximum of 10 ⁇ m.
  • the first thermoplastic layer and the second thermoplastic layer are each produced by extrusion processes.
  • Thermoplastic films which are produced by extrusion processes are typically characterized by an undesirable waviness caused by the production process. This manifests itself in the form of changes in thickness (elongated elevations and depressions) perpendicular to the direction of extrusion.
  • the superimposition of the production-related waviness of two thermoplastic films can have a disadvantageous impairment of the optical properties of a laminated glass, in which there is a thermoplastic between a first pane and a second pane Foils are laminated, lead. This effect is particularly pronounced when the manufacturing-related waviness of the individual thermoplastic foils is unfavorably superimposed. If, for example, in the case of windshields in motor vehicles, the head is tilted from one side to the other or from top to bottom, objects can appear distorted when viewed through a locally different optical refractive power.
  • the first thermoplastic layer of the wedge-shaped multilayer intermediate layer according to the invention is produced by an extrusion process in which plasticized material is conveyed in the form of a film from an extruder device.
  • the first thermoplastic layer has a certain waviness or unevenness of the surface due to the manufacturing process.
  • At least the outside of the first protective layer of the first thermoplastic layer have a plurality of elongated elevations (wave crests) and elongated depressions (wave troughs) that extend along a extend in the first (film) direction and are arranged alternately in a second (film) direction perpendicular to the first (film) direction.
  • the inside of the first protective layer, the inside of the second protective layer and the surfaces of the acoustically damping layer can also have elongated elevations and elongated depressions in a correspondingly wavy manner.
  • the first direction corresponds to the extrusion direction of the first thermoplastic layer.
  • the elongated elevations and elongated depressions of the first thermoplastic layer are typically arranged parallel to one another and in an alternating sequence.
  • the elongated elevations and elongated depressions are typically arranged at substantially uniform distances from one another.
  • the second thermoplastic layer of the wedge-shaped multilayer intermediate layer according to the invention is produced in one embodiment by an extrusion process in which plasticized material is conveyed in the form of a film from an extruder device.
  • the second thermoplastic layer has a certain waviness or unevenness of the surface due to the manufacturing process.
  • At least the inside, in particular both the inside and the outside, of the second thermoplastic layer has a plurality of elongated elevations (wave crests) and elongated depressions (wave troughs) that extend along a third (film) direction and in one to the third Alternating (film) direction perpendicular to the fourth (film) direction are arranged.
  • the third direction corresponds to the extrusion direction of the second thermoplastic layer.
  • the elongated elevations and elongated depressions of the second thermoplastic layer are typically arranged parallel to one another and in an alternating sequence.
  • the elongated elevations and elongated depressions are typically arranged at substantially uniform distances from
  • the elongated elevations (wave crests) and depressions (wave troughs) describe in the context of the invention the production-related, actually undesirable surface waviness.
  • the distance between adjacent elevations or the distance between adjacent depressions is greater than or equal to 50 mm. This is to be distinguished from a desired surface roughness, which is often deliberately embossed into the film surface in the form of elongated elevations and depressions in order to promote ventilation when laminating a composite pane, the distance between adjacent elevations or depressions typically being less than 1 mm.
  • the first thermoplastic layer and the second thermoplastic layer are each produced in extrusion processes and thus have elevations and depressions as described above
  • the first thermoplastic layer and the second thermoplastic layer are preferably arranged in the wedge-shaped multilayer intermediate layer in such a way that the elongated elevations of the first thermoplastic layer are arranged at an angle of 45 ° to 90 ° to the elongated elevations of the second thermoplastic layer.
  • the first thermoplastic layer and the second thermoplastic layer are arranged in the wedge-shaped multilayer intermediate layer in such a way that the elongated elevations of the first thermoplastic layer are at an angle of 60 ° to 90 °, in particular at an angle of 75 ° to 90 °, are arranged to the elongated elevations of the second thermoplastic layer.
  • An embodiment of the invention is particularly preferred in which the first thermoplastic layer and the second thermoplastic layer are arranged in the wedge-shaped multilayer intermediate layer in such a way that the elongated elevations of the first thermoplastic layer are at an angle of 90 ° to the elongated elevations of the second thermoplastic layer are arranged.
  • thermoplastic layer at least comprising a first protective layer having an inner side, an outer side and a first thickness, a second protective layer having an inner side, an outer side and a second thickness and an acoustically arranged between the first protective layer and the second protective layer damping layer having a third thickness, the thicknesses of the first protective layer, the second protective layer, the acoustically damping layer and the total thickness of the first thermoplastic layer in each case being essentially constant over the length and the width;
  • thermoplastic layer having an inside and an outside, the second thermoplastic layer having a wedge-shaped cross-section with a thicker first end and a thinner second end;
  • thermoplastic layer and the second thermoplastic layer Arranging the first thermoplastic layer and the second thermoplastic layer flat on top of one another in such a way that the inside of the second thermoplastic layer is directly or indirectly adjacent to the outside of the first protective layer.
  • the first thermoplastic layer and the second thermoplastic layer can each be produced in an extrusion process.
  • the method comprises in the step of printing the opaque layer at least the application of a water- or solvent-based color pigments or dyes-containing composition to the layer to be printed in at least one area and the drying of the applied composition.
  • Spray processes, screen printing processes, inkjet processes or other suitable printing processes are particularly suitable for applying the composition.
  • the method comprises at least the following steps:
  • thermoplastic layer Extrusion of a first thermoplastic layer, at least comprising a first protective layer having an inner side, an outer side and a first thickness, a second protective layer having an inner side, an outer side and a second thickness and an acoustically arranged between the first protective layer and the second protective layer Damping layer having a third thickness, the thicknesses of the first protective layer, the second protective layer, the acoustically damping layer and the total thickness of the first thermoplastic layer being essentially constant over the length and the width, and at least the outside of the first protective layer being the first thermoplastic Layer has a plurality of elongated elevations and elongated depressions which extend along a first direction and are arranged alternately in a second direction perpendicular to the first direction;
  • thermoplastic layer having an inside and an outside, the second thermoplastic layer having a wedge-shaped cross section with a thicker first end and a thinner second end and at least the inside of the second thermoplastic layer having a plurality of elongated elevations and elongated depressions extending along a third direction and arranged alternately in a fourth direction perpendicular to the third direction;
  • thermoplastic layer (D) arranging the first thermoplastic layer and the second thermoplastic layer flat on top of each other in such a way that the second thermoplastic layer with the Inside directly or indirectly adjoins the outside of the first protective layer and the elongated elevations of the first thermoplastic layer are arranged at an angle of 45 ° to 90 ° to the elongated elevations of the second thermoplastic layer.
  • steps (a) and (b) can also be carried out in reverse order.
  • step (d) the first thermoplastic layer and the second thermoplastic layer are arranged flat on top of each other in such a way that the inside of the second thermoplastic layer directly or indirectly adjoins the outside of the first protective layer and the elongated elevations of the first thermoplastic layer are arranged at an angle of 60 ° to 90 °, preferably 75 ° to 90 °, very particularly preferably 90 °, to the elongated elevations of the second thermoplastic layer.
  • the method according to the invention can additionally comprise the steps of providing at least one functional intermediate layer and arranging this between the first thermoplastic layer and the second thermoplastic layer.
  • the at least one functional intermediate layer can be an IR-reflecting layer, a UV-reflecting layer, a tinted or colored layer, a barrier layer or a combination of these. If several functional intermediate layers are present, these can also have different functions.
  • the method according to the invention can comprise, as a further step, the joining of the stack sequence formed in step (d) by the arrangement of the first thermoplastic layer and the second thermoplastic layer to form a pre-composite.
  • the first thermoplastic layer and the second thermoplastic layer can be connected to form a pre-composite, for example, by gluing the edges of the two layers with alcohol, in particular isopropanol, or with heat, in particular through selective heating with a soldering iron.
  • the invention also relates to a composite pane, at least comprising a first pane, a second pane and a wedge-shaped multilayer intermediate layer according to the invention arranged between the first pane and the second pane.
  • the usual masking pressure is usually burned into a pane during the bending process, which can lead to optical distortions in marginal areas and in the area of sensor windows. Burning in a conventional masking print on coated panes can also be problematic.
  • An opaque layer printed on one of the layers of the wedge-shaped multilayer intermediate layer with acoustic damping properties offers the advantage over a cover print applied to the outer pane or the inner pane that the optics of the composite pane is improved in the edge areas and in the area of sensor windows and the printing of a coated pane is improved can be avoided.
  • the first pane and the second pane are preferably made of glass, particularly preferably of soda-lime glass, as is customary for window panes.
  • the panes can, however, also be made from other types of glass, for example quartz glass, borosilicate glass or aluminosilicate glass, or from rigid clear plastics, for example polycarbonate or polymethyl methacrylate.
  • the first pane and / or the second 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 first disk and the second disk can vary widely and thus be adapted to the requirements in the individual case.
  • the first disk and the second disk preferably have thicknesses from 0.5 mm to 5 mm, particularly preferably from 1 mm to 3 mm.
  • the pane, which is the outer pane in the composite pane is 2.1 mm thick and the pane, which is the inner pane in the composite 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 first disk and the second disk preferably do not have a wedge angle. However, it is also possible for the first disk and / or the second disk to have a wedge-shaped cross section.
  • the height of the first pane and the second pane ie, in the case of a windshield, the distance between the roof edge of the composite pane and the engine edge of the
  • 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 wedge-shaped multilayer intermediate layer is preferably between 0.8 m and 1.40 m 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 for separating a vehicle interior from an external environment.
  • a vehicle window is therefore a window that is inserted into a window opening in the vehicle body or is intended for this purpose.
  • a composite pane according to the invention is in particular a windshield of a motor vehicle.
  • the first pane is the outer pane and the second pane is the inner pane of a composite pane. But it is also possible that the first disk is the inner disk and the second disk is the outer disk.
  • inner pane denotes that pane which is intended to face the interior of the vehicle in the installed position.
  • outer pane denotes that pane which is intended to face the external surroundings of the vehicle in the installed position.
  • the first pane and the second pane can 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 overall transmission refers to the procedure for testing the light transmission of motor vehicle windows specified by ECE-R 43, Annex 3, Section 9.1.
  • the first pane and the second pane can be made of non-toughened, partially toughened, or toughened glass.
  • the composite pane according to the invention is preferably curved in one or more directions of the space, as is customary for motor vehicle windows, typical radii of curvature being in the range from about 10 cm to about 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, for example, as a head-up display (HUD) for displaying information.
  • HUD head-up display
  • the invention also relates to a method for producing a composite pane, wherein a first pane, a wedge-shaped multilayer intermediate layer according to the invention and a second pane are provided, then a stacking sequence is formed from the first pane, the wedge-shaped multilayer intermediate layer and the second pane and in a final step the stacking sequence is connected by lamination.
  • the lamination of the stacking sequence can be carried out using common lamination processes.
  • so-called autoclave processes can be carried out at an elevated pressure of about 10 bar to 15 bar and temperatures of 130 ° C. to 145 ° C. for about 2 hours.
  • autoclave-free processes are also possible.
  • Vacuum bags or vacuum ring processes known per se work, for example, at around 200 mbar and 80 ° C to 110 ° C.
  • the first disk, the wedge-shaped multilayer intermediate layer and the second disk can also be pressed in a calender between at least one pair of rollers to form a composite disk.
  • Systems of this type are known for the production of panes and normally have at least one heating tunnel in front of a press shop.
  • the temperature during the pressing process is, for example, from 40 ° C to 150 ° C.
  • Combinations of calender and autoclave processes have proven particularly useful in practice.
  • vacuum laminators can be used. These consist of one or more heatable and evacuable chambers in which the first pane and the second pane are laminated within, for example, about 60 minutes at reduced pressures of 0.01 mbar to 800 mbar and temperatures of 80 ° C to 170 ° C.
  • the wedge-shaped multilayer intermediate layer can be placed as a pre-composite of the first thermoplastic layer and the second thermoplastic layer between the first pane and the second pane and then the first pane can be connected to the second pane via the wedge-shaped multilayer intermediate layer during the lamination process (so-called offline- Proceedings).
  • the first thermoplastic layer and the second thermoplastic layer are placed individually or as a stacking sequence between the first pane and the second pane and then during the lamination process the first pane, the second thermoplastic layer, the first thermoplastic layer and the second disc are connected to each other (so-called online process).
  • the first pane and the second pane are preferably subjected to a bending process before lamination.
  • the first pane and the second pane are preferably bent congruently together (i.e. at the same time and by the same tool), because this means that the shape of the panes is optimally matched to one another for the subsequent lamination.
  • Typical temperatures for glass bending processes are, for example, 500 ° C to 700 ° C.
  • 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 irradiates an area of the windshield where the radiation is reflected in the direction of the viewer (driver), creating a virtual image that the viewer perceives 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 body size of the viewer.
  • the area in which the viewer's eyes must be with a given mirror position is known as the eyebox window.
  • This eyebox window can be shifted vertically by adjusting the mirror, the entire area accessible through this (that is, the overlay of all possible eyebox windows) being referred to as the eyebox.
  • a viewer located inside the eyebox can perceive the virtual image. Of course, this means that the viewer's eyes must be located within the eyebox, not the entire body.
  • the invention also relates to the use of a wedge-shaped multilayer intermediate layer according to the invention in a vehicle window in means of transport for traffic in the country, in the air or at sea, in particular in motor vehicles and in particular in a windshield in a motor vehicle.
  • the laminated pane according to the invention and the method according to the invention have clear advantages over a masking print according to the prior art, which is applied directly to a glass surface, where it is burned in at higher temperatures and forms a glass-like coating or an enamel.
  • this form of applying the masking print to a pane of glass is difficult or not possible in the case of surface-coated glasses.
  • undesirable discoloration or defects in the cover print or in the coatings can occur.
  • a cover print according to the prior art which is applied to a sun protection coating and in particular a silver-based sun protection coating and baked.
  • the cover print according to the prior art can lead to optical distortions in the edge area or in the area of sensor windows.
  • 1 shows a cross-sectional view of an embodiment of a wedge-shaped multilayer intermediate layer according to the invention
  • 2 shows a cross-sectional view of a further embodiment of a wedge-shaped multilayer intermediate layer according to the invention
  • FIG. 3 shows a cross-sectional view of a further embodiment of a wedge-shaped multilayer intermediate layer according to the invention
  • FIG. 4 shows a cross-sectional view of a further embodiment of a wedge-shaped multilayer intermediate layer according to the invention
  • Fig. 5 is a plan view of an embodiment of an inventive
  • FIG. 7 shows a schematic representation of a first thermoplastic layer partially unwound from a roll
  • FIG. 8 shows a detail of a cross-sectional view of the first thermoplastic layer according to the cutting line shown in FIG. 7,
  • thermoplastic layer 9 shows a schematic representation of a second thermoplastic layer partially unwound from a roll
  • FIG. 10 shows a detail of a cross-sectional view of the second thermoplastic layer according to the cutting line shown in FIG. 9,
  • FIG. 11 shows an exploded view of an embodiment of a wedge-shaped multilayer intermediate layer according to the invention
  • FIG. 12 shows an exploded view of a further embodiment of a wedge-shaped multilayer intermediate layer according to the invention
  • FIG. 13 shows a plan view of a further embodiment of a composite pane according to the invention.
  • FIG. 14 shows a flow diagram of an embodiment of a method according to the invention.
  • the wedge-shaped multilayer intermediate layer 1 shows the detail of a cross section of an embodiment of a wedge-shaped multilayer intermediate layer 1 according to the invention.
  • the wedge-shaped multilayer intermediate layer 1 comprises a first thermoplastic layer 2 and a second thermoplastic layer 6.
  • the first thermoplastic layer 2 preferably contains PVB.
  • the first thermoplastic layer 2 can contain another suitable material such as, for example, polyamide or polyethylene.
  • the first thermoplastic layer 2 comprises a first protective layer 3 having an inside 3a, an outside 3b and a first thickness, a second Protective layer 4 having an inner side 4a, an outer side 4b and a second thickness and an acoustically damping layer 5 arranged between the inner side 3a of the first protective layer 3 and the inner side 4a of the second protective layer 4.
  • the thicknesses of the first protective layer 3, the second protective layer 4, of the acoustically damping layer 5 and the total thickness of the first thermoplastic layer 2 is in each case essentially constant over the length and the width.
  • the total thickness of the first thermoplastic layer 2 is, for example, 0.5 mm.
  • the outside 3b of the first protective layer 2 directly adjoins the inside 6a of the second thermoplastic layer 6.
  • the opaque layer 10 is printed in a region on the outside 6b of the second thermoplastic layer 6.
  • the opaque layer 10 is black here, for example, and has a thickness of 12 ⁇ m, for example.
  • the second thermoplastic layer 6 is preferably made of PVB.
  • the second thermoplastic layer 6 can consist of another suitable material such as polyamide or polyethylene. It can be seen that the second thermoplastic layer 6 has a wedge-shaped cross section with a thicker first end and a thinner second end. The thickness at the thinner second end is, for example, 0.36 mm and the thickness at the thicker first end is, for example, 0.5 mm.
  • FIG. 2 shows the detail of a cross section of a further embodiment of a wedge-shaped multilayer intermediate layer 1 according to the invention.
  • the in Fig. 2 shows the detail of a cross section of a further embodiment of a wedge-shaped multilayer intermediate layer 1 according to the invention.
  • FIG. 2 differs from that shown in FIG.
  • Embodiment only to the effect that the opaque layer 10 is not printed on the outside 6b of the second thermoplastic layer 6, but is printed on the outside 4b of the second protective layer 4 in an area.
  • FIG. 3 shows the detail of a cross section of a further embodiment of a wedge-shaped multilayer intermediate layer 1 according to the invention.
  • FIG. 3 differs from that shown in FIG.
  • 4 shows the detail of a cross section of a further embodiment of a wedge-shaped multilayer intermediate layer 1 according to the invention.
  • the embodiment shown in FIG. 4 differs from the embodiment shown in FIG. 1 only in that the opaque layer 10 is not printed on the outside 6b of the second thermoplastic layer 6, but on the outside 3b of the first protective layer 3 of the first thermoplastic Layer 2 is printed in one area and that a functional layer 7 is arranged between the outside 3b of the first protective layer 3 of the first thermoplastic layer 2 and the inside 6a of the second thermoplastic layer 6.
  • only one functional layer is arranged between the first thermoplastic layer 2 and the second thermoplastic layer 6.
  • the wedge-shaped multilayer intermediate layer 1 it is also possible for the wedge-shaped multilayer intermediate layer 1 to have more than one functional layer 7.
  • the functional layer is, for example, a tinted layer.
  • the composite pane 13 comprises a first pane 14, a second pane 15 and a wedge-shaped multilayer intermediate layer 1 according to the invention.
  • the composite pane 13 has four pane edges, namely an upper pane edge O and a lower pane edge U, which are located in the installed state in the (vehicle) transverse direction, and two lateral window edges S, which extend in the installed state in the (vehicle) vertical direction.
  • the composite pane 13 has a sensor window 18 and the opaque layer 10 is arranged in an area surrounding the sensor window 18.
  • FIG. 6 shows a cross-sectional view of an embodiment of a composite pane according to the invention along the section line A-A ‘shown in FIG. 5.
  • the wedge-shaped multilayer intermediate layer comprises a first thermoplastic layer 2 and a second thermoplastic layer 6.
  • the first thermoplastic layer 2 contains, for example, PVB and comprises a first protective layer 3 having an inside 3a, an outside 3b and a first thickness, a second protective layer 4 having a Inside 4a, an outside 4b and a second thickness and an acoustically damping layer 5 arranged between the inside 3a of the first protective layer 3 and the inside 4a of the second protective layer 4.
  • the thicknesses of the first protective layer 3, the second Protective layer 4, the acoustically damping layer 5 and the total thickness of the first thermoplastic layer 2 is in each case essentially constant over the length and the width.
  • the total thickness of the first thermoplastic layer 2 is, for example, 0.5 mm.
  • the outside 3b of the first protective layer 2 directly adjoins the inside 6a of the second thermoplastic layer 6.
  • the opaque layer 10 is printed in a region on the inside 6a of the second thermoplastic layer 6.
  • the opaque layer 10 is black here, for example, and has a thickness of 12 ⁇ m, for example.
  • the second thermoplastic layer 6 is preferably made of PVB.
  • the second thermoplastic layer 6 can consist of another suitable material such as polyamide or polyethylene. It can be seen that the second thermoplastic layer 6 has a wedge-shaped cross section with a thicker first end and a thinner second end. The thickness at the thinner second end is, for example, 0.36 mm and the thickness at the thicker first end is, for example, 0.5 mm.
  • the first disk 14 and the second disk 15 consist, for example, of soda-lime glass and have a thickness of 2.1 mm.
  • the first pane 14 is, for example, the outer pane and the second pane is the inner pane of the composite pane.
  • the first pane 14 it is also possible for the first pane 14 to be the inner pane and the second pane 15 to be the outer pane of the composite pane.
  • the first thermoplastic layer 2 preferably contains PVB.
  • the first thermoplastic layer 2 can contain another suitable material such as, for example, polyamide or polyethylene.
  • the first thermoplastic layer 2 is produced by extrusion, the extrusion direction of the first thermoplastic layer 2 corresponding to the winding or unwinding direction of the roll 16. In Fig. 7, the extrusion or unwinding direction is indicated by the arrow R1.
  • FIG. 8 shows a detail of a cross-sectional view of the first thermoplastic layer 2 according to the section line AA drawn in FIG. 7.
  • the first thermoplastic layer 2 has a first protective layer 3 having an inside 3a, an outside 3b and a first thickness, a second protective layer 4 having an inside 4a, an outer side 4b and a second thickness and an acoustically damping layer 5 arranged between the inner side 3a of the first protective layer 3 and the inner side 4a of the second protective layer 4.
  • the thicknesses of the first protective layer 3, the second protective layer 4, the acoustically damping layer 5 and the total thickness of the first thermoplastic layer 2 are in each case essentially constant over the length and the width.
  • the total thickness of the first thermoplastic layer 2 is, for example, 0.5 mm.
  • the outside 3b of the first protective layer 3 has a plurality of elongated 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 in the extrusion direction R1.
  • the elevations 8 and depressions 9 are arranged alternately transversely to the extrusion direction.
  • the elevations 8 and depressions 9 are wave-shaped, so that the outside 3b of the first protective layer 3 of the first thermoplastic layer 2 has an undulation. It should be noted that FIG.
  • the outside 4b of the second protective layer 4 is also designed to be corrugated in a corresponding manner and is provided with elevations 8 and depressions 9.
  • the inner side 3a of the first protective layer 3, the inner side 4a of the second protective layer 4 and the surfaces of the acoustically damping layer 5 can also be designed to be corrugated in a corresponding manner and provided with elevations 8 and depressions 9.
  • FIG. 9 shows a schematic representation of a second thermoplastic layer 6 partially unwound from a roll 17.
  • the second thermoplastic layer 6 is preferably made of PVB.
  • the second thermoplastic layer 6 can consist of another suitable material such as polyamide or polyethylene.
  • the second thermoplastic layer 6 is produced by extrusion, the extrusion direction of the second thermoplastic layer 6 corresponding to the winding or unwinding direction of the roll 17. In Fig. 9, the extrusion or unwinding direction is marked with the arrow R3.
  • FIG. 10 shows a detail of a cross-sectional view of the second thermoplastic layer 6 according to the section line AA drawn in FIG. 9. It can be seen that the second thermoplastic layer 6 has a wedge-shaped cross section with a thicker first end and a thinner second end. The thickness at the thinner second end is, for example, 0.36 mm and the thickness at the thicker first end is, for example, 0.5 mm.
  • the inside 6a of the second thermoplastic layer 6 has a plurality of Surface of protruding, elongated elevations 11 and the surface of deepening, elongated depressions 12 in a parallel arrangement. The elevations 11 and depressions 12 each extend in the extrusion direction R3.
  • the elevations 11 and depressions 12 are arranged alternately transversely to the extrusion direction.
  • the elevations 11 and depressions 12 are wave-shaped. It should be noted that FIG. 10 only shows a schematic representation; typically, the outside 6b of the second thermoplastic layer 6 is also designed to be corrugated in a corresponding manner and is provided with elevations 11 and depressions 12.
  • the wedge-shaped multilayer intermediate layer 1 comprises a first thermoplastic layer 2 and a second thermoplastic layer 6.
  • the first thermoplastic layer 2 comprises a first protective layer 3, a second protective layer 4 and a Acoustically damping layer 5 arranged in between.
  • the second thermoplastic layer 6 is arranged directly adjacent to the outside of the first protective layer 3.
  • the first thermoplastic layer 2 has a plurality of elongated elevations 8 projecting 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 denoted by the arrow R1 in FIG. 11.
  • the elevations 8 and depressions 9 are arranged alternately transversely to the direction R1.
  • the elevations 8 and depressions 9 are wave-shaped.
  • the two opposing surfaces of the first thermoplastic layer 2 are wavy and have elevations 8 and depressions 9.
  • the second thermoplastic layer 6 also has a plurality of elongated elevations 11 protruding from the surface and elongated depressions 12 deepening the surface in a parallel arrangement.
  • the elevations 11 and depressions 12 each extend along a direction which is indicated in FIG. 11 by the arrow R3.
  • the elevations 11 and depressions 12 are arranged alternately transversely to the direction R3.
  • the elevations 11 and depressions 12 are wave-shaped.
  • the two opposing surfaces of the second thermoplastic layer 6 are wavy and have elevations 11 and depressions 12.
  • the first are thermoplastic Layer 2 and the second thermoplastic layer 6 arranged in such a way that the elevations 8 and depressions 9 of the first thermoplastic layer 2 are arranged rotated by 90 ° to the extrusion direction R3 and thus rotated by 90 ° to the elevations 11 and depressions 12 of the second thermoplastic layer 6 .
  • the opaque layer 10 is printed on the outside 3b of the first protective layer 3, which is arranged directly adjacent to the second thermoplastic layer 6. To simplify the illustration, the opaque layer 10 is not shown in FIG. 11.
  • FIG. 12 shows an exploded view of a further embodiment of a wedge-shaped multilayer intermediate layer 1 according to the invention.
  • the embodiment shown in FIG. 12 differs from that shown in FIG are arranged so that the elevations 8 and depressions 9 of the first thermoplastic layer 2 are arranged rotated by 45 ° to the extrusion direction R3 and thus rotated by 45 ° to the elevations 11 and depressions 12 of the second thermoplastic layer 6.
  • the composite pane 13 shows a further embodiment of a composite pane 13 according to the invention, in particular for use as a windshield of a motor vehicle.
  • the composite pane 13 comprises a first pane 14, a second pane 15 and a wedge-shaped multilayer intermediate layer 1 according to the invention.
  • the wedge-shaped multilayer intermediate layer comprises a first thermoplastic layer 2 and a second thermoplastic layer 6.
  • the composite pane 13 has four Window edges, namely an upper window edge O and a lower window edge U, which extend in the installed state in the (vehicle) transverse direction, and two lateral window edges S, which extend in the installed state in the (vehicle) vertical direction.
  • the opaque layer 10 is arranged in a peripheral area at the edge.
  • the method comprises providing a first thermoplastic layer 2, at least comprising a first protective layer 3 having an inside 3a, an outside 3b and a first thickness, a second protective layer 4 having an inside 4a, an outside 4b and a second Thickness and an acoustically damping layer 5 arranged between the first protective layer 3 and the second protective layer 4 having a third thickness, the thicknesses of the first protective layer 3, the second protective layer 4, the acoustically damping layer 5 and the total thickness of the first thermoplastic layer 2, respectively are essentially constant over the length and the width.
  • the method comprises providing a second thermoplastic layer 6 having an inside 6a and an outside 6b, the second thermoplastic layer having a wedge-shaped cross section with a thicker first end and a thinner second end.
  • the method comprises applying an opaque layer 10 to the first protective layer 3 in at least one area on its outside 3b, on the second protective layer 4 in at least one area on its outside 4b or on the second thermoplastic layer 6 in at least an area on its inside 6a or on its outside 6b;
  • a fourth step IV the method comprises arranging the first thermoplastic layer 2 and the second thermoplastic layer 6 flat on top of one another in such a way that the second thermoplastic layer 6 with the inside 6a directly or indirectly adjoins the outside 3b of the first protective layer 3.
  • steps I and II can also be carried out in reverse order.
  • Step III preferably comprises at least the application of a composition containing water or solvent-based color pigments or dyes to the first protective layer 3 in at least one area on its outside 3b, to the second protective layer 4 in at least one area on its outside 4b or to the second thermoplastic layer 6 in at least one area on its inside 6a or on its outside 6b and the drying of the applied composition.
  • a composition containing water or solvent-based color pigments or dyes to the first protective layer 3 in at least one area on its outside 3b, to the second protective layer 4 in at least one area on its outside 4b or to the second thermoplastic layer 6 in at least one area on its inside 6a or on its outside 6b and the drying of the applied composition.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Laminated Bodies (AREA)
  • Joining Of Glass To Other Materials (AREA)

Abstract

La présente invention concerne une couche intermédiaire multicouche cunéiforme (1) pour une vitre composite, ladite couche intermédiaire comprenant au moins : une première couche thermoplastique (2) qui présente une longueur, une largeur et une épaisseur totale, et comprend au moins une première couche de protection (3) comportant un côté intérieur (3a), un côté extérieur (3b) et une première épaisseur, une seconde couche de protection (4) comportant un côté intérieur (4a), un côté extérieur (4b) et une deuxième épaisseur, et une couche d'amortissement acoustique (5) située entre le côté intérieur (3a) de la première couche de protection (3) et le côté intérieur (4a) de la seconde couche de protection (4) et comportant un côté intérieur (5a), un côté extérieur (5b) et une troisième épaisseur, les épaisseurs de la première couche de protection (3), de la seconde couche de protection (4) et de la couche d'amortissement acoustique (5) et l'épaisseur totale de la première couche thermoplastique (2) étant chacune sensiblement constantes dans le sens de la longueur et de la largeur ; et une seconde couche thermoplastique (6) qui comporte un côté intérieur (6a) et un côté extérieur (6b), et dont le côté intérieur (6a) est directement ou indirectement adjacent au côté extérieur (3b) de la première couche de protection (3), et présente une section transversale cunéiforme avec une première extrémité plus épaisse et une seconde extrémité plus fine. Une couche opaque imprimée (10) se trouve dans au moins une région sur le côté extérieur (3b) de la première couche de protection (3), sur le côté extérieur (4b) de la seconde couche de protection (4), ou sur le côté intérieur (6a) ou le côté extérieur (6b) de la seconde couche thermoplastique (6).
PCT/EP2021/065823 2020-06-16 2021-06-11 Couche intermédiaire multicouche cunéiforme présentant des propriétés d'amortissement acoustique WO2021254911A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202180002569.XA CN114126857A (zh) 2020-06-16 2021-06-11 具有声阻尼性能的楔形多层中间层

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP20180154.5 2020-06-16
EP20180154 2020-06-16

Publications (1)

Publication Number Publication Date
WO2021254911A1 true WO2021254911A1 (fr) 2021-12-23

Family

ID=71103246

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2021/065823 WO2021254911A1 (fr) 2020-06-16 2021-06-11 Couche intermédiaire multicouche cunéiforme présentant des propriétés d'amortissement acoustique

Country Status (3)

Country Link
CN (1) CN114126857A (fr)
DE (1) DE202021004143U1 (fr)
WO (1) WO2021254911A1 (fr)

Citations (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0420228B1 (fr) 1989-09-28 1995-03-08 Hughes Aircraft Company Afficheur tête haute sans ghost pour automobile avec pare-brise biseauté
DE19519541A1 (de) 1994-05-30 1995-12-14 Tale Consultants Ltd Verfahren zur Herstellung von Schichtglas und Verfahren zur Herstellung einer dabei verwendeten Folie aus Polyvinylbutyral
DE19535053A1 (de) 1994-10-04 1996-04-11 Volkswagen Ag Gekrümmte Verbundscheibe
DE19611483A1 (de) 1995-09-21 1997-10-02 Volkswagen Ag Gekrümmte Verbundscheibe
EP2017237A1 (fr) 2006-05-12 2009-01-21 Sekisui Chemical Co., Ltd. Film intermédiaire destiné à du verre stratifié et verre stratifié
DE102011004500A1 (de) * 2011-02-22 2012-08-23 Bayerische Motoren Werke Aktiengesellschaft Verfahren zur Herstellung einer bedruckten Fahrzeug-Verbundscheibe
DE102012211729A1 (de) 2012-07-05 2014-01-09 Bayerische Motoren Werke Aktiengesellschaft Kamerasystem zum Erfassen der Position eines Fahrers eines Kraftfahrzeugs
US20140212639A1 (en) 2011-04-11 2014-07-31 Saint-Gobain Glass France Composition that can be screen printed onto polyvinyl butyral
WO2014174308A1 (fr) 2013-04-25 2014-10-30 Pilkington Group Limited Vitrage feuilleté
EP1322482B2 (fr) 2000-09-01 2014-11-19 Digiglass Pty. Ltd. Mat riau stratifi porteur d'image
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
US9623634B2 (en) 2015-02-19 2017-04-18 Agp America S.A. Obscuration having superior strength and optical quality for a laminated automotive windshield
US20170297310A1 (en) 2015-02-19 2017-10-19 Agp America S.A. Obscuration having superior strength and optical quality for an automotive laminate
WO2018081570A1 (fr) 2016-10-28 2018-05-03 Kuraray America, Inc. Couche intermédiaire multicouche en forme de coin et stratifié en verre
WO2018122770A1 (fr) 2016-12-29 2018-07-05 Agp America S.A. Matériau d'obscurcissement ayant une résistance et une qualité optique supérieures pour stratifié automobile
WO2019038043A1 (fr) 2017-08-25 2019-02-28 Kuraray Europe Gmbh Verre feuilleté comprenant des couches de film intercouche avec un cadre pigmenté
WO2020007610A1 (fr) 2018-07-02 2020-01-09 Saint-Gobain Glass France Couche intermédiaire multicouche cunéiforme dotée de propriétés d'amortissement acoustique

Patent Citations (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0420228B1 (fr) 1989-09-28 1995-03-08 Hughes Aircraft Company Afficheur tête haute sans ghost pour automobile avec pare-brise biseauté
DE19519541A1 (de) 1994-05-30 1995-12-14 Tale Consultants Ltd Verfahren zur Herstellung von Schichtglas und Verfahren zur Herstellung einer dabei verwendeten Folie aus Polyvinylbutyral
DE19535053A1 (de) 1994-10-04 1996-04-11 Volkswagen Ag Gekrümmte Verbundscheibe
DE19611483A1 (de) 1995-09-21 1997-10-02 Volkswagen Ag Gekrümmte Verbundscheibe
EP1322482B2 (fr) 2000-09-01 2014-11-19 Digiglass Pty. Ltd. Mat riau stratifi porteur d'image
US20160341960A1 (en) 2006-05-12 2016-11-24 Sekisui Chemical Co., Ltd. Interlayer film for laminated glass and laminated glass
EP2017237A1 (fr) 2006-05-12 2009-01-21 Sekisui Chemical Co., Ltd. Film intermédiaire destiné à du verre stratifié et verre stratifié
DE102011004500A1 (de) * 2011-02-22 2012-08-23 Bayerische Motoren Werke Aktiengesellschaft Verfahren zur Herstellung einer bedruckten Fahrzeug-Verbundscheibe
US20140212639A1 (en) 2011-04-11 2014-07-31 Saint-Gobain Glass France Composition that can be screen printed onto polyvinyl butyral
DE102012211729A1 (de) 2012-07-05 2014-01-09 Bayerische Motoren Werke Aktiengesellschaft Kamerasystem zum Erfassen der Position eines Fahrers eines Kraftfahrzeugs
WO2014174308A1 (fr) 2013-04-25 2014-10-30 Pilkington Group Limited Vitrage feuilleté
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
US9623634B2 (en) 2015-02-19 2017-04-18 Agp America S.A. Obscuration having superior strength and optical quality for a laminated automotive windshield
US20170297310A1 (en) 2015-02-19 2017-10-19 Agp America S.A. Obscuration having superior strength and optical quality for an automotive laminate
WO2018081570A1 (fr) 2016-10-28 2018-05-03 Kuraray America, Inc. Couche intermédiaire multicouche en forme de coin et stratifié en verre
WO2018122770A1 (fr) 2016-12-29 2018-07-05 Agp America S.A. Matériau d'obscurcissement ayant une résistance et une qualité optique supérieures pour stratifié automobile
WO2019038043A1 (fr) 2017-08-25 2019-02-28 Kuraray Europe Gmbh Verre feuilleté comprenant des couches de film intercouche avec un cadre pigmenté
WO2020007610A1 (fr) 2018-07-02 2020-01-09 Saint-Gobain Glass France Couche intermédiaire multicouche cunéiforme dotée de propriétés d'amortissement acoustique

Also Published As

Publication number Publication date
DE202021004143U1 (de) 2022-10-19
CN114126857A (zh) 2022-03-01

Similar Documents

Publication Publication Date Title
EP4226204A1 (fr) Vitre de véhicule pour affichage tête haute
EP3507091B1 (fr) Vitrage feuilleté pour affichage tête haute
EP3484707B1 (fr) Vitre composite de vehicule automobile dotee de trajectoire de rayons optimisee pour un capteur integre
EP3658371B1 (fr) Film thermoplastique pour verre feuilleté
EP3621804B1 (fr) Procédé de fabrication d'une feuille composite thermoplastique
WO2020007610A1 (fr) Couche intermédiaire multicouche cunéiforme dotée de propriétés d'amortissement acoustique
WO2020094419A1 (fr) Vitre feuilletée pour affichage tête haute
WO2022073860A1 (fr) Vitre de véhicule pour affichage tête haute
EP4285178A1 (fr) Vitre de véhicule pour un affichage tête haute
WO2021245031A1 (fr) Vitre composite dotée d'un élément hologramme
WO2020094420A1 (fr) Vitre feuilletée présentant une section transversale cunéiforme
EP3756882B1 (fr) Vitre composite de véhicule pourvue de zone de détection et couche intermédiaire thermoplastique sous la forme d'angle de coupe dans la zone de détection
WO2021254910A1 (fr) Vitre composite
WO2022268691A1 (fr) Vitrage feuilleté comportant un film fonctionnel à impression opaque
WO2021204551A1 (fr) Couche intermédiaire colorée multicouche ayant une section transversale en forme de coin
WO2021254911A1 (fr) Couche intermédiaire multicouche cunéiforme présentant des propriétés d'amortissement acoustique
WO2020094421A1 (fr) Vitre stratifiée destinée à un affichage tête haute
WO2021254737A1 (fr) Véhicule comprenant un affichage tête haute
DE202021100222U1 (de) Verbundscheibe mit Sonnenblendschutz-Bereich mit verbesserter Wärmeschutzfunktion
WO2021254912A1 (fr) Couche intermédiaire multicouche cunéiforme présentant des propriétés d'amortissement acoustique
DE202020103631U1 (de) Vorrichtung zur Herstellung einer keilförmigen Glasscheibe
EP4126539B1 (fr) Procédé de fabrication d'une vitre composite pourvue de film d'affichage
WO2021204550A1 (fr) Couche intermédiaire thermoplastique colorée à section transversale en forme de coin
DE202021004235U1 (de) Verbundscheibe mit Sonnenblendschutz-Band mit verbesserter Wärmeschutzfunktion
WO2022229140A1 (fr) Procédé de production d'une vitre composite comprenant un film à propriétés fonctionnelles

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 21732039

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 21732039

Country of ref document: EP

Kind code of ref document: A1