Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B32—LAYERED PRODUCTS
  • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
  • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
  • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
  • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
  • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
  • B32B17/10165—Functional features of the laminated safety glass or glazing
  • B32B17/10339—Specific parts of the laminated safety glass or glazing being colored or tinted
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B32—LAYERED PRODUCTS
  • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
  • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
  • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
  • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
  • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
  • B32B17/10009—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets
  • B32B17/10036—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets comprising two outer glass sheets
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B32—LAYERED PRODUCTS
  • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
  • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
  • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
  • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
  • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
  • B32B17/10165—Functional features of the laminated safety glass or glazing
  • B32B17/10293—Edge features, e.g. inserts or holes
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B32—LAYERED PRODUCTS
  • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
  • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
  • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
  • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
  • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
  • B32B17/10165—Functional features of the laminated safety glass or glazing
  • B32B17/10339—Specific parts of the laminated safety glass or glazing being colored or tinted
  • B32B17/10357—Specific parts of the laminated safety glass or glazing being colored or tinted comprising a tinted intermediate film
• • 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
  • B32B17/10779—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 polyester
• • 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
• • 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
  • B32B2250/40—Symmetrical or sandwich layers, e.g. ABA, ABCBA, ABCCBA
• • 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
  • B32B2270/00—Resin or rubber layer containing a blend of at least two different 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
  • B32B2307/00—Properties of the layers or laminate
  • B32B2307/40—Properties of the layers or laminate having particular optical properties
  • B32B2307/402—Coloured
• • 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
  • B32B2307/40—Properties of the layers or laminate having particular optical properties
  • B32B2307/41—Opaque
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B32—LAYERED PRODUCTS
  • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
  • B32B2605/00—Vehicles
  • B32B2605/006—Transparent parts other than made from inorganic glass, e.g. polycarbonate glazings

Definitions

• the invention relates to a vehicle composite window, a method for its production and its use.
• Modern vehicles are being equipped with an increasing number of optical sensors, the signals of which are used to support the driver.
• sensors are cameras such as video cameras or night vision cameras, rain sensors, light sensors or distance meters.
• Forward-facing sensors are often attached to the interior surface of the windshield, typically in the center near the top edge.
• the sensors are covered by an opaque masking print on the windshield.
• the usual peripheral, frame-like masking pressure which primarily serves as UV protection for the mounting adhesive of the windshield, is significantly increased in the area of the sensors in the direction of the center of the window.
• the detection direction of the sensor includes a very acute angle of approximately 30 ° with the windshield. This results in a comparatively large, essentially trapezoidal, so-called sensor window of the windshield.
• the sensor window is the area of the windshield through which the radiation is detected by the sensor.
• the sensor window of the windshield is therefore the area that lies in the detection beam path of the sensor.
• the more sensors that are to be attached to the windshield the more area of the windshield is taken up by the sum of the sensor windows and the greater the masking pressure that is to cover the sensors.
• US 2019/0022981 A1 discloses a laminated vehicle glazing which comprises an AMOLED screen and a sensor within the laminate.
• the AMOLED screen is located in the area of the clear window or is masked by an outer peripheral masking layer between the second main surface of the first pane and the rear surface of the AMOLED screen and a connecting part is also optionally masked by the outer masking layer.
• EP 3 216 655 A1 proposes to support a sensor by means of a holder in such a way that the beam path runs through the sensor window at least 4 mm from the outer corners of the sensor window. In this way, the influence of the optical distortions caused by the heat absorption of the screen printing on the sensor should be kept as low as possible.
• the present invention has for its object to provide an improved vehicle composite window, in which in particular the optical quality of the sensor window is improved and / or the risk of glass breakage during the bending process is reduced.
• the vehicle composite pane according to the invention comprises at least one outer pane and one inner pane, which are connected to one another via at least one thermoplastic intermediate layer, and an opaque polymer film, which is located between the outer pane and the inner pane is arranged, the opaque polymeric film having at least one recess according to the invention.
• the outer pane and the inner pane are typically made of glass.
• the composite pane is provided to separate a vehicle interior from an external environment.
• the vehicle compound window is thus a window pane which is inserted into a window opening in the vehicle body or is intended for this purpose.
• the vehicle composite window according to the invention is in particular a windshield of a motor vehicle.
• the inner pane is the pane 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. That surface of the respective pane which, in the installed position, faces the external environment of the vehicle is referred to as the outside surface. That surface of the respective pane which, in the installed position, faces the interior of the vehicle is referred to as the interior surface.
• the area of the vehicle compound pane which is arranged in the detection beam path of the camera or is provided for this purpose can be referred to as a camera area or camera window. Radiation that passes through the vehicle's compound window in the camera window is detected by the camera.
• the at least one recess in the opaque polymer film is a sensor window for an optical sensor.
• the vehicle composite pane according to the invention is particularly intended and suitable for attaching an optical sensor to its inner pane.
• the interior surface of the inner pane can be equipped with suitable holders, for example with a bracket or housing.
• the optical sensors are preferably cameras such as video cameras or night vision cameras, rain sensors, light sensors, distance meters or LIDAR (light detection and ranging) systems. If more than one optical sensor is present, the type of the individual optical sensors can also be different.
• cameras such as video cameras or night vision cameras, rain sensors, light sensors, distance meters or LIDAR (light detection and ranging) systems. If more than one optical sensor is present, the type of the individual optical sensors can also be different.
• the vehicle composite pane additionally comprises at least one optical sensor which is attached to the interior surface of the inner pane and is directed at the at least one recess.
• the sensor is preferably covered by the opaque polymer film when looking through the vehicle composite window and is therefore not visible from the outside.
• the number of cutouts in the opaque polymeric film preferably corresponds to the number of optical sensors, so that in each case one sensor is directed at one cutout. However, it is also possible for the number of cutouts to be less than the number of sensors, so that several sensors are aimed at the same cutout.
• the at least one recess is trapezoidal.
• a trapezoidal recess is particularly suitable as a sensor window for a camera.
• the at least one recess is circular or oval.
• a circular or oval recess is particularly suitable as a sensor window for a rain sensor. If the opaque polymer film has more than one recess, these can also have different shapes.
• the area of the at least one recess corresponds at least to the size of the sensor window required for the respective sensors, preferably exactly the size of the sensor window required for the respective sensors.
• the recess preferably has an area of at least 1 cm 2 , particularly preferably from 1 cm 2 to 500 cm 2 , very particularly preferably from 10 cm 2 to 250 cm 2 , in particular from 20 cm 2 to 100 cm 2 , for example 35 cm 2 . If the opaque polymeric film has more than one recess, the areas of these can be different.
• the outer pane, the inner pane and the at least one thermoplastic intermediate layer usually have the same dimensions.
• the dimensions of the opaque polymeric film are preferably smaller than the outer pane, the inner pane and the at least one thermoplastic intermediate layer.
• the opaque polymer film only partially covers the inner pane.
• the area of the opaque polymeric film is a maximum of 95%, preferably a maximum of 75%, particularly preferably a maximum of 50%, very particularly preferably a maximum of 10% of the area of the vehicle composite pane.
• the opaque polymeric film consists of polyethylene terephthalate (PET) or polyethylene (PE), in particular of PET.
• the opaque polymeric film is preferably between 10 pm (micrometers) and 80 pm, particularly preferably between 20 pm and 60 pm, very particularly preferably between 25 pm and 50 pm thick. In preferred embodiments, the opaque polymeric film is 25 pm or 50 pm thick.
• the at least one thermoplastic intermediate layer preferably contains ethylene vinyl acetate (EVA), polyvinyl butyral (PVB) or polyurethane (PU) or mixtures or copolymers or derivatives thereof, particularly preferably PVB.
• EVA ethylene vinyl acetate
• PVB polyvinyl butyral
• PU polyurethane
• the thickness of the thermoplastic intermediate layer is preferably from 0.2 mm to 2 mm, particularly preferably from 0.3 mm to 1 mm, for example 0.38 mm or 0.76 mm. If the vehicle composite pane comprises two or more thermoplastic intermediate layers, the individual intermediate layers can also be of different materials.
• the vehicle composite pane comprises an outer pane and an inner pane, which are connected to one another by exactly one thermoplastic intermediate layer.
• the opaque polymeric film is arranged between the inner pane and the thermoplastic intermediate layer or between the outer pane and the thermoplastic intermediate layer.
• the vehicle composite pane comprises an outer pane and an inner pane, which has at least two thermoplastic Interlayers are interconnected.
• the opaque polymeric film is preferably arranged between two of the thermoplastic intermediate layers.
• the opaque polymer film is black.
• the opaque polymer film can also be of any other color.
• a vehicle composite pane according to the invention can additionally comprise a cover print made of a dark, preferably black, enamel.
• the opaque polymeric film and the masking print have essentially the same optical density.
• 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.
• An “essentially identical optical density” means that the optical densities of two materials differ from one another by a maximum of 5%, preferably by 3%, particularly preferably by a maximum of 2%.
• this comprises a cover print which has the same color as the opaque polymer film.
• the masking pressure is usually applied to the interior surface of the outer pane or to the interior surface of the inner pane.
• the vehicle composite pane comprises an outer pane and an inner pane, which are connected to one another via exactly one thermoplastic intermediate layer, and a covering pressure is applied to the interior surface of the outer pane.
• the opaque polymeric film is preferably arranged between the outer pane and the thermoplastic intermediate layer.
• the vehicle composite pane comprises one
• Outer pane and an inner pane which are connected to one another via exactly one thermoplastic intermediate layer, and a cover pressure is applied to the interior surface of the inner pane.
• the opaque polymeric film is preferably arranged between the inner pane and the thermoplastic intermediate layer.
• the vehicle composite pane comprises one
• the opaque polymeric film is preferably arranged between the inner pane and the thermoplastic intermediate layer adjacent to the inner pane or between the two thermoplastic intermediate layers.
• the vehicle composite pane comprises one
• Outer pane and an inner pane which are connected to one another via two thermoplastic intermediate layers, and a masking pressure is applied to the interior surface of the outer pane.
• the opaque polymeric film is preferably arranged between the outer pane and the thermoplastic intermediate layer adjacent to the outer pane, or between the two thermoplastic intermediate layers.
• the opaque polymeric film is preferably arranged as directly as possible adjacent to the pane on which the masking pressure is applied, between the outer pane and the inner pane.
• the outer pane, the inner pane or the thermoplastic intermediate layer can be clear and colorless, but can also be tinted, cloudy or colored.
• the total transmission through the vehicle composite window is greater than 70%, in particular if the vehicle composite window 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.
• the thickness of the outer pane and the inner pane is typically from 0.3 mm to 5 mm, preferably from 1 mm to 3 mm.
• the vehicle composite pane is preferably bent in one or more directions of space, as is customary for motor vehicle panes, with typical radii of curvature 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 vehicle composite windshield is a windshield that is mirror symmetric along a center line and the opaque polymeric film is disposed on the center line near the top edge of the windshield.
• Another aspect of the invention is an arrangement comprising a vehicle composite pane according to the invention and an optical sensor attached to it, which is fastened to the interior-side surface of the inner pane facing away from the intermediate layer and to the sensor window of the composite pane, that is to say the region of the recess in the opaque polymeric film is directed.
• the detection beam path of the sensor thus runs through the recess in the opaque polymer film.
• the optical sensor is preferably an optical camera, that is to say a camera with sensitivity in the visible spectral range, for example a lane camera or a camera for an augmented reality head-up display.
• the invention also relates to a method for producing a vehicle composite pane, at least comprising the following steps:
• the opaque polymeric film can be arranged manually or mechanically, for example by means of a robot.
• the opaque polymeric film is held in position by the laminated-in at least one thermoplastic intermediate layer.
• the use of an adhesive is usually not necessary.
• the method according to the invention preferably does not include a step of attaching the opaque polymeric film using an adhesive.
• the panes are subjected to a bending process before lamination, for example by gravity bending, suction bending and / or press bending.
• Typical bending temperatures are from 500 ° C to 700 ° C.
• an opaque masking print is preferably applied, in particular to the edge region of the outer pane and / or the inner pane.
• a black or dark enamel is typically applied by screen printing and baked before lamination, in particular before bending or during bending.
• the invention also relates to the use of a vehicle composite window according to the invention as a windshield of a vehicle, preferably a motor vehicle.
• Fig. 10 cross section through the composite vehicle window according to the invention of Fig. 9 along the line A-A, and
• Fig. 1 1 is a flow chart of an embodiment of the method according to the invention.
• FIG. 1 shows an embodiment of the vehicle composite pane 1 according to the invention
• FIG. 2 shows the cross section through the vehicle composite pane 1 according to the invention from FIG. 1 along the line AA ′, which corresponds to the center line M.
• the vehicle composite pane 1 shown in FIG. 1 is mirror-symmetrical along the center line M and the opaque polymer film 5 is arranged on the center line near the top edge.
• the vehicle composite pane 1 comprises an outer pane 2 and an inner pane 3, which are connected to one another in a planar manner via a thermoplastic intermediate layer 4.
• the outer pane 2 and the inner pane 3 are made of soda-lime glass and have a thickness of 2.1 mm, for example.
• An opaque polymer film 5 is arranged between the inner pane 3 and the thermoplastic intermediate layer 4 and has a recess 6.
• the opaque polymer film 5 is arranged between the inner pane 3 and the thermoplastic intermediate layer 4.
• the opaque polymeric film 5 can also be arranged between the outer pane 2 and the thermoplastic intermediate layer 4.
• the vehicle composite pane 1 according to the invention can also comprise more than one thermoplastic intermediate layer 4.
• the thermoplastic intermediate layer 4 consists of polyvinyl butyral (PVB) and is 0.76 mm thick.
• the opaque polymeric film 5 consists of polyethylene terephthalate (PET) and is 25 pm (micrometers) thick.
• the recess 6 is trapezoidal in the embodiment shown in FIGS.
• the opaque polymeric film 5 has a trapezoidal shape in which the corners pointing towards the lower edge are rounded. But it is also any other form of opaque suitable for covering a sensor polymeric film 6 possible.
• the opaque polymeric film 5 is dark gray. However, it can also have a different color, for example black.
• the inner pane 3 faces the interior of the vehicle.
• the outer pane 2 faces the external environment of the vehicle.
• the composite pane has an upper edge O and a lower edge U. In the installed position, the upper edge O points upwards to the vehicle roof, the lower edge U points downwards to the engine compartment.
• the interior surface of the outer pane 2 is connected to the outer surface of the inner pane 3 via the thermoplastic intermediate layer 4.
• the outside surface of the outer pane 2 is referred to as “side G”, the interior surface of the outer pane 2 as “side II”, the outside surface of the inner pane 3 as “side III” and the interior surface of the inner pane 3 as “side IV”.
• FIG. 3 shows the cross section through a further embodiment of a vehicle composite pane 1 according to the invention, an optical sensor 7 directed towards the cutout 6, which is attached to the inside pane 3 on the interior side via a holder 9, being additionally drawn.
• the optical sensor 7 is, for example, a lane camera.
• the detection direction of the optical sensor 7 is directed approximately horizontally forward on the outside of the vehicle composite pane 1. Radiation that passes horizontally through the vehicle composite pane 1 in a so-called sensor window, which corresponds to the region of the recess 6 in the embodiment shown in FIG. 3, is detected by the optical sensor 7.
• FIG. 4 shows a further embodiment of a vehicle composite pane 1 according to the invention.
• the vehicle composite pane 1 shown in FIG. 3 differs from the embodiment shown in FIG. 1 only in that the opaque polymer film 5 has two cutouts 6, a cutout 6 being trapezoidal and a cutout 6 being circular.
• FIG. 5 shows a further embodiment of a vehicle composite pane 1 according to the invention.
• the vehicle composite window 1 shown in FIG. 5 differs from the embodiment shown in FIG. 4 only in that the trapezoidal recess 6 is larger and the recesses 6 are not next to one another but are arranged one above the other.
• the outer shape of the opaque polymeric film 5 in the embodiment shown in FIG. 5 differs from the outer shape of the opaque polymeric film 5 in the embodiment shown in FIG. 4.
• FIG. 6 shows a further embodiment of a vehicle composite pane 1 according to the invention.
• the vehicle composite window 1 shown in FIG. 6 differs from the embodiment shown in FIG. 4 only in that the opaque polymer film 5 has three recesses 6, one of which is trapezoidal and two of which are circular.
• FIG. 7 shows a further embodiment of a vehicle composite pane 1 according to the invention. This differs from the embodiment shown in FIG. 6 in that the three cutouts 6 are trapezoidal and arranged next to one another and in that the opaque polymer film 5 in the middle in Direction of the lower edge U is extended.
• FIG. 8 shows a further embodiment of a vehicle composite pane 1 according to the invention.
• the vehicle composite window 1 shown in FIG. 8 differs from that shown in FIG. 1 only in that it additionally includes a peripheral cover print 8 made of enamel.
• the opaque polymeric film 5 and the peripheral masking print 8 have essentially the same optical density and are dark gray in the embodiment shown in FIG. 8.
• the peripheral masking pressure 8 is only applied adjacent to the outer edges of the vehicle composite window 1.
• an additional cover print 8 to be applied on the outside around the opaque polymer film 5.
• FIG. 9 shows a further embodiment of a vehicle composite window 1 according to the invention.
• the vehicle composite window 1 shown in FIG. 9 differs from that shown in FIG. 8 only in that the opaque polymer film 5 and the peripheral masking print 8 are black are.
• FIG. 10 shows the cross section through the vehicle composite pane 1 according to the invention from FIG. 9 along the line AA ′, which corresponds to the center line M, with an additional one Optical sensor 7 attached in the form of a camera is drawn in via a holder 9.
• the black cover print 8 is applied to the interior surface of the outer pane 2.
• FIG. 11 shows the flow diagram of a method according to the invention for producing a vehicle composite window 1 according to the invention.
• a first step I an outer pane 2, an inner pane 3, at least one thermoplastic intermediate layer 4 and an opaque polymer film 5, which has at least one recess 6, are provided.
• the at least one thermoplastic intermediate layer 4 and the opaque polymer film 5 are arranged between the outer pane 2 and the inner pane 3.
• the outer pane 2 is connected to the inner pane 3 via the at least one thermoplastic intermediate layer 4 by lamination.
• a vehicle composite pane 1 according to the invention in which a sensor window is surrounded by an opaque polymer film 5, i.e. the sensor window corresponds to the recess 6 in the opaque polymer film, compared with a vehicle composite window according to the prior art, in which the sensor window is surrounded by an opaque cover print.
• the opaque masking print was baked at temperatures of 500 ° C to 700 ° C when bending the composite pane according to the prior art.

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• Joining Of Glass To Other Materials (AREA)
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• 2019
  • 2019-07-08 EP EP19735349.3A patent/EP3826837A1/de active Pending
  • 2019-07-08 MA MA053363A patent/MA53363A/fr unknown
  • 2019-07-08 CN CN201980002065.0A patent/CN110944836A/zh active Pending
  • 2019-07-08 JP JP2021500447A patent/JP2021531227A/ja active Pending
  • 2019-07-08 KR KR1020217001674A patent/KR102558186B1/ko active IP Right Grant
  • 2019-07-08 WO PCT/EP2019/068215 patent/WO2020020613A1/de unknown
  • 2019-07-08 US US17/049,860 patent/US11673372B2/en active Active

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