JP7032539B2 - Composite pane - Google Patents

Description

The present invention relates to a composite pane having a functional element and a metal protective layer, a method for manufacturing the composite pane, and its use.

Glazing of powered vehicles with combustion engines has a wide range of legal requirements. The following legal restrictions apply regarding the size and structural stability of Pain's field of view:
- ECE R43: UR for the approval of safety glazing and composite glazing material [Einheitliche Vorschriften feur die Genehmigung des Sicherheitsglases und der Verbundglaswerkstoffe] and - vehicle parts technical requirements for type testing [Technische Anforderungen an Fahrzeugteile bei der Bauartpreufung] section 22 a StVZO (German Road Vehicle Regulations), No. 29 "Safety glass".

These regulations generally correspond to compound panes. Composite panes usually consist of an outer pane and an inner pane made of float glass in particular, and are tightly coupled to each other in one or more intermediate layers by heat and pressure. The intermediate layer is usually made of a thermoplastic such as polyvinyl butyral (PVB) or ethylene vinyl acetate (EVA).

Modern vehicle glazing often has a number of functional elements that are tightly coupled to the composite pane, such as displays such as OLED displays or sensor electronics. These functional elements are usually very temperature sensitive or ultraviolet (UV) radiation sensitive.

An object of the present invention is a composite pane with functional elements, an improved composite that protects the functional elements from infrared and ultraviolet radiation and allows the functional elements to be easily and economically integrated into the composite pane. To provide a pane.

An object of the present invention is achieved based on the present invention by a composite pane according to independent claim 1. A preferred embodiment is evident from the dependent claims.

The composite pane according to the invention has at least the following features:
-External and internal panes that are joined together by at least one intermediate layer,
-Functional elements placed between the external pane and the internal pane,
Including
Here, the metal protective layer is arranged between the outer pane and the functional element.

The metal protective layer is implemented so that infrared radiation and / or UV radiation entering the composite pane through the outer pane does not reach the functional element or reaches only a small amount. Therefore, the functional elements are protected from damage due to excessive temperature rise or ultraviolet (UV) radiation. At the same time, this metal protective layer can protect the functional element from electromagnetic radiation, especially from high frequency electromagnetic radiation of kilohertz (kHz), megahertz (MHz), or gigahertz (GHz). ..

In an advantageous embodiment of the protective layer according to the invention, at least 80%, preferably 90%, particularly at least 99% of the infrared radiation entering the composite pane through the outer pane is absorbed or reflected by the protective layer.

In another advantageous embodiment of the protective layer according to the invention, at least 80%, preferably 90%, particularly at least 98% of the UV radiation entering the composite pane through the outer pane is absorbed or reflected by this protective layer. To.

In another advantageous embodiment of the composite pane according to the invention, the metal protective layer comprises or consists of at least one metal layer, preferably an aluminum layer, a stainless steel layer, a copper layer, a silver layer, or a gold layer. Includes or consists of. Such metal layers are particularly suitable for sufficiently absorbing or reflecting infrared or ultraviolet radiation. Due to its good thermal conductivity and low UV transmission, the aluminum layer is particularly advantageous.

In another advantageous embodiment of the protective layer according to the invention, the at least one metal layer is located on at least one carrier film. The carrier film preferably comprises or consists of a polymer film, in particular polyethylene terephthalate (PET), polyvinyl butyral (PVB) (eg Polyimide®), ethylene vinyl acetate (EVA), polyethylene naphthalate (e.g.). Contains or consists of PEN), polyepoxide, or polyimide. Placing the metal layer on top of the carrier film makes it possible to easily process even thin and brittle metal layers.

In another advantageous embodiment of the protective layer according to the invention, the metal layer is congruent or substantially congruent with at least one carrier film. This means that the lateral dimensions of the metal layer are equal to the lateral dimensions of the carrier film, or in other words, the metal layer completely or almost completely covers the carrier film. means.

In another advantageous embodiment of the protective layer according to the invention, the protective layer comprises or consists of at least one metal foil, i.e., the metal layer is implemented as a metal foil (metal flakes). The metal leaf is preferably self-supporting, in other words, thick and stable enough to be inserted and processed without additional carrier film. Preferred metal foils are aluminum foils, stainless steel foils, copper foils, silver foils, or gold foils. Needless to say, a large number of metal foils can be combined with each other to achieve optimum opacity for infrared and ultraviolet radiation, for example.

In an advantageous embodiment, the metal layer or metal leaf has a thickness of 0.5 μm to 500 μm, preferably 1 μm to 200 μm, particularly 20 μm to 50 μm. Such a thick metal layer has a sufficiently good impermeable property to infrared radiation and ultraviolet radiation. Moreover, such metal layers are economical and easy to process.

In another advantageous embodiment, the metal layer or metal leaf has a visible light transmittance of less than 50%, preferably less than 30%, even more preferably less than 10%, particularly less than 5%, through the protective layer. It is carried out as if. Those skilled in the art can determine this by the appropriate combination of material selection and thickness in the light of a simple experiment.

The metal protective layer can be inserted into or laminated in a laminate of composite panes. Optionally, the metal protective layer can be further adhesively bonded to one of the surfaces of the layers of the composite pane, eg, to the inner surface of the outer pane or to a functional element.

In an advantageous embodiment of the composite pane according to the invention, the functional element is placed in the region of the orthographic projection of the protective layer (via the external pane) onto the external pane. Preferably, the area of the orthographic projection of the protective layer onto the outer pane is equal to or greater than the area of the functional element's orthographic projection onto the outer pane. Needless to say, the area of orthographic projection of the functional element is protected onto the external pane, as this is the only way to ensure that infrared and / or UV radiation through the external pane does not reach the functional element. Within the orthographic area of the layer.

Preferably, the area of the orthographic projection of the protective layer onto the outer pane is larger than the area of the functional element's orthographic projection onto the outer pane. This ensures that even the marginal areas of the functional element are protected from infrared and / or UV radiation. In particular, the orthographic projection region of the protective layer overlaps the orthographic projection region of the functional element by at least 2 mm, preferably at least 5 mm, and particularly at least 10 mm, respectively. This effectively prevents infrared and / or UV radiation that hits the outer pane at a non-orthogonal angle from reaching the functional element.

The functional element is a temperature sensitive and / or ultraviolet (UV) radiation sensitive functional element, preferably an electrical functional element.

Such functional elements preferably include or consist of:
-A light source, preferably an LED light source (light emitting diode), and particularly preferably an OLED light source (organic light emitting diode).
-Displays, preferably OLED displays, particularly preferably transparent OLED displays,
-Sensors, preferably temperature sensors, touch sensors, moisture sensors, vibration sensors, or break sensors,
-RFID chip, switching logic circuit, or microprocessor.

In embodiments according to the invention, the protective layer and functional elements are located between the outer pane and the inner pane. The outer pane and the inner pane are joined via at least one intermediate layer. This includes any various arrangement of the protective layer, the functional element, and one or more intermediate layers, provided that the protective layer is located between the outer pane and the functional element. This ensures that functional elements are more simply and more effectively protected from infrared and / or UV radiation entering the composite pane through the external pane.

In an advantageous embodiment, the protective layer is placed directly on the inner surface II of the outer pane, or only via a masking print. In addition, functional elements are placed directly adjacent to the protective layer. A functional element is joined to the inner surface III of the inner pane via the first intermediate layer. Preferably, an additional intermediate layer is placed in the form of a frame around the functional element, especially preferably around the protective layer. This further frame-shaped middle layer joins the inner side surface II of the outer pane to the first middle layer, and similarly the first middle layer joins the inner side surface III of the inner pane. This additional frame-shaped intermediate layer compensates for the height differences within the composite pane caused by the functional elements and ensures low tension coupling without optical strain after stacking.

In an alternative advantageous embodiment, the protective layer is placed directly on the inner surface II of the outer pane, or only via a masking print. Further, the protective layer and the inner side surface II of the outer pane are joined face-to-face to the second intermediate layer. The functional element is then placed directly adjacent to the second intermediate layer. A functional element is joined to the inner surface III of the inner pane via the first intermediate layer. Preferably, an additional intermediate layer is placed around the functional element in the form of a frame. This further frame-shaped intermediate layer joins the second intermediate layer to the first intermediate layer, and similarly the first intermediate layer to the inner surface III of the inner pane. This additional frame-shaped intermediate layer compensates for the height differences within the composite pane caused by the functional elements and ensures low tension coupling without optical strain after stacking.

In another advantageous embodiment, the protective layer is joined to the inner surface II of the outer pane via a third intermediate layer. Further, the protective layer and the third intermediate layer are joined to the second intermediate layer face-to-face. The functional element is then placed directly adjacent to the second intermediate layer. A functional element is joined to the inner surface III of the inner pane via the first intermediate layer. Preferably, an additional intermediate layer is placed around the functional element in the form of a frame. This further frame-shaped intermediate layer joins the second intermediate layer to the first intermediate layer, and similarly the first intermediate layer to the inner surface III of the inner pane. This additional frame-shaped intermediate layer compensates for the height differences within the composite pane caused by the functional elements and ensures low tension coupling without optical strain after stacking.

Another advantageous embodiment is to place a protective layer between the inner surface of the outer pane and the first intermediate layer. Next, preferably, the functional element is placed between the first intermediate layer and the inner surface of the inner pane. Preferably, an additional frame-shaped intermediate layer is placed around the functional element to compensate for the height difference.

Place functional elements at least partially between the outer and inner panes. Here, "partially" means that the functional element does not cover the entire surface of the outer and inner panes, but instead usually covers only a small area, such as a narrow strip of strips. ..

Correspondingly, the protective layer is also placed, at least partially, between the outer and inner panes. As used herein, "partially" means that the protective layer does not cover the entire surface of the outer and inner panes, but instead usually covers only small areas such as narrow strips. ..

Essentially, all electrically insulating substrates that are thermally and chemically stable and dimensionally stable under the conditions of the manufacture and use of composite panes according to the invention are either as outer and inner panes or. Suitable for all other panes placed between the outer and inner panes.

The pane preferably contains or is composed of glass, preferably flat glass, most particularly preferably float glass, such as soda-lime glass, borosilicate glass, or quartz glass. It is composed from now on. Alternatively, the pane may contain or be composed of a clear plastic, preferably rigid clear plastics, particularly polyethylene, polypropylene, polycarbonate, polymethylmethacrylate, polystyrene, polyamide, polyester, polyvinyl chloride, And / or a mixture thereof is contained or composed of. The pane is preferably transparent, especially for use as a windshield or rear window of a vehicle, or for other uses where high light transmission is desired. In the light of the present invention, panes having a transmittance of more than 70% in the visible spectral range are understood to be transparent. However, for panes that are not within the driver's traffic-related field of view, for example roof panels, the transmittance may be fairly low, for example greater than 5%.

The thickness of the pane can vary widely and can therefore be ideally adapted to the requirements of the individual case. Preferably, individual panes with a standard thickness of 1.0 mm to 25 mm are used, and for the glass of the vehicle, preferably 1.4 mm to 2.5 mm panes, furnishings, appliances and buildings. Especially for electric heaters, a pane of 4 mm to 25 mm is preferably used. The size of the pane can be widely varied and depends on the size of the application according to the present invention. The first pane and the second pane have a normal area of 200 cm ² to 20 m ² for example in the vehicle structure and building sector.

The composite pane can have any three-dimensional shape. Preferably, this three-dimensional shape has no shadow areas, which allows it to be coated, for example, by cathode sputtering, eg, by region, with an infrared reflective coating or a low-E (low emissivity) coating. There is. Preferably, the pane is flat or slightly or strongly curved in one or more spatial directions. In particular, a flat substrate is used. The pane may be colorless or colored.

The panes are joined together by at least one intermediate layer, preferably by first and second intermediate layers. The middle layer is preferably transparent. The intermediate layer preferably contains at least one plastic, preferably polyvinyl butyral (PVB), ethylene vinyl acetate (EVA), and / or polyethylene terephthalate (PET). However, the intermediate layer may be, for example, polyurethane (PU), polypropylene (PP), polyacrylate, polyethylene (PE), polycarbonate (PC), polymethylmethacrylate, polyvinyl chloride, polyacetate resin, casting resin, acrylate, etc. It may contain fluorinated ethylene propylene, polyvinyl chloride, and / or ethylene tetrafluoroethylene, or copolymers or mixtures thereof. The intermediate layer is formed from one film or a plurality of films stacked on top of each other, preferably using a film having a thickness of 0.025 mm to 1 mm, typically 0.38 mm or 0.76 mm. You can also do it. The intermediate layer is preferably thermoplastic and, after lamination, the pane and any other intermediate layer can be bonded to each other.

The terms "external pane" and "internal pane" are chosen to distinguish between the two panes in the composite pane according to the invention. These terms do not provide a description of the geometric arrangement. When a composite pane according to the invention is provided, for example, in an opening, eg, an opening in a vehicle or building, which separates the interior from the external environment, the external pane usually faces the external environment and thus, for example, the sun. It faces strong and everyday infrared or ultraviolet sources such as light.

In an advantageous embodiment of the composite pane according to the invention, a masking print, such as a black print, a white print, or a print of another color, is placed at least between the outer pane and the metal protective layer. The masking print is preferably placed in the area of the orthographic projection of the protective layer onto the external pane, at least between the external pane and the metal protective layer. Preferably, the masking print is placed directly on the inner surface II of the outer pane.

In an alternative embodiment of the composite pane according to the invention, no masking print is placed, at least between the outer pane and the metal protective layer. This improves the reflective properties of the metal layer.

Another aspect of the invention includes a method of making a composite pane according to the invention, including at least:
(A) Manufacture a laminate of at least one outer pane, at least one protective layer, at least one functional element, at least one intermediate layer, and at least one inner pane, and (b) laminate the laminate. To form a composite pane.

The interlayers can be formed regionally or partially from a single film, or two or more films stacked one on top of each other, respectively.

The bonding of the laminate in step (b) is preferably carried out under the action of heat, vacuum, and / or pressure. A method known per se can be used to manufacture composite panes.

For example, the so-called autoclave method is carried out at an increased pressure of approximately 10 bar to 15 bar and a temperature of 130 ° C to 145 ° C for about 2 hours. A vacuum bag method or a vacuum ring method known to itself or others is carried out, for example, at approximately 200 mbar, 80 ° C. to 110 ° C. The outer pane, the thermoplastic middle layer, and the inner pane can also be pressed on the calendar between at least a pair of rollers. This type of plant for manufacturing panes is known and usually has at least one heating tunnel upstream from the press facility. The temperature during the pressing operation is, for example, 40 ° C to 150 ° C. The combination of the calendar method and the autoclave method has proved to be particularly useful in practice. Alternatively, a vacuum laminator can be used. They consist of one or more heatable and exhaustable chambers in which, for example, 0.01 mbar to 800 mbar decompression, 80 ° C to 170 ° C, and pain within approximately 60 minutes. Are laminated.

Another aspect of the invention is in a building, especially in an access area, window area, roof area, or façade area; as an embedded component in furnishings and appliances; movement to move on land, in the air, or on water. Includes the use of composite panes according to the invention in means, in particular in trains, ships, and powered vehicles, eg, as windshields, rear windows, side windows, and / or roof panels.

The invention further comprises the use of a metal protective layer in a composite pane according to the invention to protect the functional element, in particular to protect the functional element from infrared and / or ultraviolet radiation.

Hereinafter, the present invention will be described in detail with reference to the drawings and exemplary embodiments. The drawings are schematic and not to an exact scale. The drawings are by no means limiting to the present invention.

It is a top view of the embodiment of the pane arrangement by this invention which has the composite pane by this invention. It is sectional drawing which follows the cutting line AA'in FIG. It is sectional drawing of the alternative embodiment along the cutting line AA'in FIG. It is sectional drawing of the alternative embodiment along the cutting line AA'in FIG. It is a detailed flowchart of embodiment of the method by this invention.

FIG. 1 shows a plan view of an exemplary embodiment of a pane arrangement 101 according to the invention having a composite pane 100 according to the invention, using an example of a vehicle window, particularly a passenger car windshield.

The composite pane 100 is, for example, substantially trapezoidal. The dimensions of the composite pane 100 are, for example, 0.9 m × 1.5 m on a long side surface. In the installation position, the internal pane 2 is intended to face, for example, the interior of the vehicle. In other words, the outer surface IV of the inner pane 2 is reachable from the inside, while the outer surface I of the outer pane 1 faces outward with respect to the interior of the vehicle. The terms "inside" and "outside" refer to the inside and outside of the composite pane, respectively. The outer pane 1 and the inner pane 2 are made of, for example, soda-lime glass. The thickness of the inner pane 2 is, for example, 1.6 mm, and the thickness of the outer pane 1 is, for example, 2.1 mm. Needless to say, the outer pane 1 and the inner pane 2 can have any thickness, and may have the same thickness, for example.

The composite pane 100 may be architectural glazing, furniture glazing, or the like. The composite pane 100 may be part of an insulating glazing unit and may be placed, for example, in a building window. Alternatively, the composite pane 100 can be placed, for example, indoors, and can be, for example, a conference room, or a refrigerator, or glazing of furnishing parts.

FIG. 2A shows an exemplary cross-sectional view along the cutting line AA'of FIG. Here, the composite pane 100 includes, for example, an outer pane 1 and an inner pane 2 joined to each other via two intermediate layers 3. The first intermediate layer 3.1 has a full-scale structure, while the second intermediate layer 6 has a frame shape.

In an exemplary embodiment, the electrical functional element 4, eg, an OLED display, is incorporated in the central region above the windshield. Such OLED displays are very temperature sensitive and deteriorate under UV radiation. The metal protective layer 5 is arranged between the functional element 4 and the outer pane 1. The protective layer 5 is arranged such that the functional element 4 is completely within the orthographic projection region 10 of the protective layer 5 with respect to the outer pane 1. This ensures that the infrared and / or UV radiation 30 entering the composite pane 100 through the outer pane 1 is blocked by the protective layer 5 before hitting the functional element 4. The metal protective layer 5 is made of, for example, an aluminum foil having a thickness of 20 μm.

The intermediate layer 6 is arranged in the form of a frame around the functional element 4 and the protective layer 5 to compensate for the height difference caused by the thickness of the functional element 4 and the protective layer 5.

Both the first intermediate layer 3 and the second intermediate layer 6 may be made of, for example, PVB, and are bonded together in a laminating process during the manufacture of the composite pane 100, and at the same time the outer pane 1 and the interior. It is firmly and permanently joined to Pain 2.

In this exemplary embodiment, for example, a black print 20 is optionally placed directly on the inner surface II of the outer pane 1 between the protective layer 5 and the outer pane 1 and between the outer edge regions of the composite pane 100. Apply. The masking print 20 adheres the composite pane to the frame of the vehicle body through, for example, the outer surface IV of the pane 2, while adhering the composite pane to the field of view through the composite pane 100 and the edge region of the composite pane 100. Obstructs the view from above. In particular, it also obstructs the view from the top of the metal protective layer 5, which usually has a metallic luster and can cause distracting reflections that are not very aesthetic.

The ultraviolet and infrared radiation 30 that hit the outer pane 1 of the composite pane 100 from the outside are blocked by the arrangement of the metal protective layer 5 between the functional element 4 and the outer pane 1 according to the present invention. In the case of infrared radiation, this results in the avoidance of overheating or thermal damage to the functional element 4. Protection from ultraviolet light reduces or prevents deterioration of the electronic device of the functional element 4. Both extend the useful life of the functional element 4 and increase operational reliability.

FIG. 2B shows a cross-sectional view of an alternative embodiment along the cutting line AA'of FIG. Here, the composite pane 100 substantially corresponds to the structure and material selection of the example of FIG. 2A. In contrast to FIG. 2A, in FIG. 2B, a second intermediate layer 3.2 for each region is arranged between the functional element 4 and the protective layer 5. This is particularly advantageous because the non-conductive material of the polymer of the second intermediate layer 3.2 ensures that the functional element 4 is separated from the conductive metal protective layer 5.

FIG. 2C shows a cross-sectional view of an alternative embodiment along the cutting line AA'of FIG. Here, the composite pane 100 substantially corresponds to the structure and material selection of the example of FIG. 2B. In contrast to FIG. 2B, in FIG. 2C, a third intermediate layer 3.3 for each region is arranged between the outer pane 1 and the protective layer 5. This is particularly advantageous as the third intermediate layer 3.3 reliably and permanently bonds the metal protective layer 5 to the outer pane 1.

Needless to say, for each of the embodiments of the composite pane 100 according to the present invention, shown here and not shown here, the metal protective layer 5 is a self-supporting metal layer or thin, independent. It can be a polymer carrier layer having a stable metal layer of non-independence.

Further, the position of the functional element 4 having the protective layer 5 can be located in the area of the composite pane 100 as desired and in light of the desired use. The lower or side edges of the composite pane 100, particularly outside the central field of view through the composite pane 100, are preferred. Needless to say, the composite pane 100 according to the present invention may also have a plurality of functional elements 4 together with one or more adjacent or non-adjacent protective layers 5.

FIG. 3 shows a flowchart of an exemplary embodiment of a method according to the invention for manufacturing a composite pane 100 according to the invention according to FIG. 2A, comprising the following steps S1 to S6:
S1: Printing the masking print 20 on the inner side surface II of the outer pane 1;
S2: The metal protective layer 5 is arranged on the inner side surface II of the outer pane 1, preferably arranged by adhesion;
S3: The electrical functional element 4 is placed on the metal protective layer 5, preferably by adhesion, and is frame-shaped around the electrical functional element 4 on the inner surface II of the outer pane 1. Placing the intermediate layer 6;
S4: Placing the first intermediate layer 3.1 on the frame-shaped intermediate layer 6 and the functional element 4;
S5: Place the inner pane 2 on top of the first intermediate layer 3.1;
S6: Laminating the laminated bodies to form the composite pane 100.
The invention disclosed herein includes:
[1] A composite pane (100) including at least the following:
-External panes (1) and internal panes (2), which are joined together by at least one intermediate layer (3),
-Functional elements (4) arranged between the outer pane (1) and the inner pane (2),
Here, the metal protective layer (5) is arranged between the outer pane (1) and the functional element (4).
Composite pane.
[2] The composite according to the above [1], wherein the metal protective layer (5) includes or comprises a metal layer, preferably an aluminum layer, a stainless steel layer, a copper layer, a silver layer, or a gold layer. Pain (100).
[3] The metal layer is arranged on at least one carrier film, and the carrier film is preferably a polymer carrier film, particularly polyethylene terephthalate (PET), polyvinyl butyral (PVB), and the like. The composite pane (100) according to [2] above, comprising or comprising ethylene vinyl acetate (EVA), polyethylene terephthalate (PEN), polyepoxide, or polyimide.
[4] Any of the above [1] to [3], wherein the metal protective layer (5) includes or comprises a metal foil, preferably an aluminum foil, a stainless steel foil, a copper foil, a silver foil, or a gold foil. One of the composite panes (100).
[5] The metal protective layer (5), particularly the metal layer or the metal foil, has a thickness of 0.5 μm to 500 μm, preferably 1 μm to 200 μm, particularly 20 μm to 50 μm. 4] The composite pane (100) according to any one of.
[6] Is the orthographic region of the metal protective layer (5) on the outer pane (1) equal to or equal to the orthographic region of the functional element (4) on the outer pane (1)? The composite pane (100) according to any one of the above [1] to [5], which is larger than the above.
[7] The above [1] to [6], wherein the metal protective layer (5) reflects or absorbs infrared radiation and / or ultraviolet radiation by at least 80%, preferably at least 90%, particularly at least 99%. The composite pane (100) according to any one.
[8] The composite according to any one of the above [1] to [7], wherein the functional element (4) is an electrical functional element and preferably includes or comprises at least the following. Pain (100):
-Light source, preferably LED light source (light emitting diode), particularly preferably OLED light source (organic light emitting diode),
-Displays, preferably OLED displays, particularly preferably transparent OLED displays,
-Sensors, preferably temperature sensors, touch sensors, moisture sensors, vibration sensors, or break sensors,
-RFID chip, switching logic circuit, or microprocessor.
[9] A masking print (20), for example, a black print, a white print, or a colored print is arranged at least between the outer pane (1) and the metal protective layer (5), and the masking print. 20) is the composite pane (100) according to any one of the above [1] to [8], preferably arranged directly on the inner surface II of the outer pane (1).
[10] The method for manufacturing a composite pane (100) according to any one of the above [1] to [9], which comprises at least the following:
(A) Of at least one outer pane (1), at least one metal protective layer (5), at least one functional element (4), at least one intermediate layer (3), and at least one inner pane (2). Manufacture of laminates and
(B) Laminating the laminated bodies to form a composite pane (100).
[11] The use of the composite pane (100) according to any one of the above [1] to [9], for example, in a means of transportation for moving on land, in the air, or on water, particularly in a powered vehicle. As windshields, rear windows, side windows, and / or roof panels, and as individual elements of functionality, and as built-in components in furnishings, appliances, and buildings, especially as electric heaters, or construction. Use as indoor or outdoor building glazing in a department or building department.
[12] The composite pane (100) according to any one of the above [1] to [9] for protecting the functional element, preferably for protecting the functional element from infrared rays and / or ultraviolet radiation. Use of the metal protective layer (5) in.

1 External pane 2 Internal pane 3 Intermediate layer 3.1 First intermediate layer 3.2 Second intermediate layer 3.3 Third intermediate layer 4 Functional elements 5 Protective layer 6 Frame-shaped intermediate layer 10 Projection area 20 Masking Print, Black Print 30 Infrared (IR) Radiation and Ultraviolet (UV) Radiation 100 Composite Pane 101 Pane Arrangement A-A'Cut Line S1, S2, S3, S4, S5, S6 Process I External Pane 1 Outer Surface II External Pane Inner side of 1 III Inner side of inner pane 2 IV Outer side of inner pane 2

Claims (13)

A composite pane (100) containing at least:
-External panes (1) and internal panes (2), which are joined together by at least one intermediate layer (3),
-Functional elements (4) arranged between the outer pane (1) and the inner pane (2),
Here, the metal protective layer (5) is arranged between the outer pane (1) and the functional element (4) .
The metal protective layer (5) reflects or absorbs at least 80% of infrared and / or UV radiation, whereby the metal protective layer (5) radiates the functional element (4) to the infrared and / or UV radiation. Protects from and
The metal protective layer (5) is made of a metal layer or a metal foil having a thickness of 0.5 μm to 500 μm .
Composite pane. The composite pane (100) according to claim 1, wherein the metal layer is composed of an aluminum layer, a stainless steel layer, a copper layer, a silver layer, or a gold layer . The metal layer is arranged on at least one carrier film, and the carrier film is preferably a polymer carrier film, particularly polyethylene terephthalate (PET), polyvinyl butyral (PVB), ethylene vinyl acetate. The composite pane (100) of claim 2, comprising or comprising (EVA), polyethylene terephthalate (PEN), polyepoxide, or polyimide. The composite pane (100) according to claim 1 , wherein the metal foil is made of aluminum foil, stainless steel foil, copper foil, silver foil, or gold foil. The composite pane (100) according to any one of claims 1 to 4, wherein the metal protective layer (5 ) has a thickness of 1 μm to 200 μm, particularly 20 μm to 50 μm. The orthographic region of the metal protective layer (5) onto the outer pane (1) is equal to or greater than the orthographic region of the functional element (4) onto the outer pane (1). , The composite pane (100) according to any one of claims 1 to 5. The composite pane according to any one of claims 1 to 6, wherein the metal protective layer (5) reflects or absorbs infrared radiation and / or ultraviolet radiation at least 90%, particularly at least 99%. 100). The composite pane (100) according to any one of claims 1 to 7, wherein the functional element (4) is an electrical functional element and preferably includes or comprises at least the following.
-Light source, preferably LED light source (light emitting diode), particularly preferably OLED light source (organic light emitting diode),
-Displays, preferably OLED displays, particularly preferably transparent OLED displays,
-Sensors, preferably temperature sensors, touch sensors, moisture sensors, vibration sensors, or break sensors,
-RFID chip, switching logic circuit, or microprocessor. A masking print (20), such as a black print, a white print, or a colored print, is disposed at least between the outer pane (1) and the metal protective layer (5), and the masking print (20). However, preferably, the composite pane (100) according to any one of claims 1 to 8, which is directly arranged on the inner surface II of the outer pane (1). The method for manufacturing a composite pane (100) according to any one of claims 1 to 9, comprising at least the following:
(A) Of at least one outer pane (1), at least one metal protective layer (5), at least one functional element (4), at least one intermediate layer (3), and at least one inner pane (2). Manufacturing a laminate and (b) laminating the laminate to form a composite pane (100). The means according to any one of claims 1 to 9 , for example, as a windshield, a rear window, a side window, and / or a roof panel in a means of transportation for traveling on land, in the air, or on water, particularly in a powered vehicle. Use of the described composite pane (100) . Claims 1-9 as individual elements of functionality and as furniture, appliances, and built-in components in buildings, especially as electric heaters, or as indoor or outdoor building glazing in the construction or building sector. Use of the composite pane (100) according to any one of the following items. 5. The metal protective layer (5) in the composite pane (100) of any one of claims 1-9 for protecting the functional element, preferably for protecting the functional element from infrared and / or ultraviolet radiation. )Use of.

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