CN116601023A - Composite glass sheet with heating resistor layer - Google Patents

Composite glass sheet with heating resistor layer Download PDF

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Publication number
CN116601023A
CN116601023A CN202280005050.1A CN202280005050A CN116601023A CN 116601023 A CN116601023 A CN 116601023A CN 202280005050 A CN202280005050 A CN 202280005050A CN 116601023 A CN116601023 A CN 116601023A
Authority
CN
China
Prior art keywords
composite glass
heating resistor
glass sheet
resistor layer
print
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202280005050.1A
Other languages
Chinese (zh)
Inventor
J·多罗萨里奥
L·施马特克
S·吉列森
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Saint Gobain Glass France SAS
Original Assignee
Saint Gobain Glass France SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Saint Gobain Glass France SAS filed Critical Saint Gobain Glass France SAS
Publication of CN116601023A publication Critical patent/CN116601023A/en
Pending legal-status Critical Current

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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
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • 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
    • B32B1/00—Layered products having a general shape other than plane
    • 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
    • B32B17/10174—Coatings of a metallic or dielectric material on a constituent layer of glass or polymer
    • B32B17/10183—Coatings of a metallic or dielectric material on a constituent layer of glass or polymer being not continuous, e.g. in edge regions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/10165—Functional features of the laminated safety glass or glazing
    • B32B17/10174—Coatings of a metallic or dielectric material on a constituent layer of glass or polymer
    • B32B17/10201—Dielectric coatings
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/10165—Functional features of the laminated safety glass or glazing
    • B32B17/10174—Coatings of a metallic or dielectric material on a constituent layer of glass or polymer
    • B32B17/10201—Dielectric coatings
    • B32B17/10211—Doped dielectric layer, electrically conductive, e.g. SnO2:F
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
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    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/10165—Functional features of the laminated safety glass or glazing
    • B32B17/10174—Coatings of a metallic or dielectric material on a constituent layer of glass or polymer
    • B32B17/1022—Metallic coatings
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
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    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/10165—Functional features of the laminated safety glass or glazing
    • B32B17/10174—Coatings of a metallic or dielectric material on a constituent layer of glass or polymer
    • B32B17/1022—Metallic coatings
    • B32B17/10229—Metallic layers sandwiched by dielectric layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
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    • 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
    • B32B17/10247—Laminated safety glass or glazing containing decorations or patterns for aesthetic reasons
    • B32B17/10256—Laminated safety glass or glazing containing decorations or patterns for aesthetic reasons created by printing techniques
    • B32B17/10266—Laminated safety glass or glazing containing decorations or patterns for aesthetic reasons created by printing techniques on glass pane
    • 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
    • B32B17/10302—Edge sealing
    • 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
    • B32B17/10165—Functional features of the laminated safety glass or glazing
    • B32B17/10431—Specific parts for the modulation of light incorporated into the laminated safety glass or glazing
    • B32B17/1044—Invariable transmission
    • B32B17/10449—Wavelength selective transmission
    • 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
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    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/10807—Making laminated safety glass or glazing; Apparatus therefor
    • B32B17/10899—Making laminated safety glass or glazing; Apparatus therefor by introducing interlayers of synthetic resin
    • B32B17/10935—Making laminated safety glass or glazing; Apparatus therefor by introducing interlayers of synthetic resin as a preformed layer, e.g. formed by extrusion
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    • B32—LAYERED PRODUCTS
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    • 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
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    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form
    • B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by features of form at particular places, e.g. in edge regions
    • B32B3/08—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/84—Heating arrangements specially adapted for transparent or reflecting areas, e.g. for demisting or de-icing windows, mirrors or vehicle windshields
    • H05B3/86—Heating arrangements specially adapted for transparent or reflecting areas, e.g. for demisting or de-icing windows, mirrors or vehicle windshields the heating conductors being embedded in the transparent or reflecting material
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B2605/00—Vehicles
    • B32B2605/08—Cars
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/011—Heaters using laterally extending conductive material as connecting means
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/013—Heaters using resistive films or coatings

Abstract

The invention relates to a composite glass pane, comprising a first glass pane (1) having a first surface (I) and a second surface (II), a second glass pane (2) having a first surface (III) and a second surface (IV), and a thermoplastic intermediate layer (3) connecting the second surface (II) of the first glass pane (1) with the first surface (III) of the second glass pane (2), wherein at least one thermal resistance layer (4) is arranged on the second surface (II) of the first glass pane (1), wherein the thermal resistance layer (4) has at least two contact elements (7) for electrically contacting the thermal resistance layer (4), and wherein an opaque overlay print (11) is arranged on the second surface (II) of the first glass pane (1).

Description

Composite glass sheet with heating resistor layer
The present invention relates to a composite glass sheet having a heating resistance layer, and a composite glass sheet assembly including such a composite glass sheet. It also relates to a vehicle having such a composite glass sheet and a method for manufacturing the composite glass sheet.
Composite glass sheets made from two or more glass sheets of vitreous or polymeric material are used in vehicles as windshields, backlites, sidelights and sunroofs. One or more functional coatings having infrared reflective, anti-reflective, or low E properties may be disposed on each side of the glass sheet. However, these coatings may also be used as heatable conductive coatings. The heat generated by the coating can remove condensed moisture, ice and snow in a short time. Heatable and in particular transparent coatings generally comprise a plurality of metal-containing layers, in particular silver-based, which are applied alternately with dielectric layers. These coatings are electrically connected to a voltage source so that a heating current can flow through such coatings. Since these layers are prone to corrosion, they are typically applied to the surface of the inner or outer glass sheets facing the interlayer so that they are not in contact with the atmosphere. Silver-containing transparent coatings are known, for example, from WO2013/104439A1 and WO 2017/198362 A1.
DE 20 2021 101 982 U1 discloses a composite glass pane with a sun protection coating on the inner space-side surface of the outer glass pane and an opaque cover print in the edge region of the composite glass pane.
DE 10022409 C1 discloses a method for manufacturing a composite glass sheet with a transparent corrosion-resistant surface coating.
The object of the present invention is to provide a further improved composite glass pane with a heating resistor layer, wherein the heating resistor layer is arranged on the surface of the first glass pane, in particular the outer glass pane.
According to the invention, the object is achieved by a composite glass pane with a heating resistor layer according to claim 1. Preferred embodiments are evident from the dependent claims.
The composite glass sheet according to the present invention comprises a first glass sheet having a first surface (I) and a second surface (II), a second glass sheet having a first surface (III) and a second surface (IV), and a thermoplastic interlayer connecting the second surface (II) of the first glass sheet with the first surface (III) of the second glass sheet. The composite glass sheet further comprises at least one heating resistor layer on the second surface (II) of the first glass sheet, wherein the heating resistor layer has at least two contact elements for electrically contacting the heating resistor layer. Furthermore, the composite glass sheet comprises an opaque overlay print on the second surface (II) of the first glass sheet. Whereby the opaque overlay print faces the thermoplastic interlayer. Thereby protecting the opaque covering print from the outside weather.
Surprisingly, it has been shown that such a composite glass pane according to the invention achieves a significantly improved heating performance compared to windshields known to date. The arrangement of the heating resistor layer in the vicinity of the first glass pane is advantageous in respect of particularly rapid heating of the glass pane.
The composite glass sheet may be provided for separating an interior space from an external environment in, for example, a window opening of a vehicle. Here, the first glass plate may correspond to an outer glass plate of the composite glass plate and the second glass plate may correspond to an inner glass plate of the composite glass plate. In the sense of the present invention, an inner glass pane refers to a glass pane facing the inner space. The outer glass sheet refers to a glass sheet facing the external environment. An interlayer is used to connect the two glass sheets.
The first surface (III) of the second glass plate (inner glass plate) and the second surface (II) of the first glass plate (outer glass plate) face each other and are connected to each other via a thermoplastic interlayer. The second surface (IV) of the second glass sheet and the first surface (I) of the first glass sheet face away from each other and from the thermoplastic interlayer.
The first glass pane and the second glass pane are preferably made of glass, particularly preferably flat glass, float glass, quartz glass, borosilicate glass or soda lime glass. In principle, however, they can also consist of plastics, preferably rigid transparent plastics, in particular polyethylene, polypropylene, polycarbonate, polymethyl methacrylate, polystyrene, polyamide, polyester, polyvinyl chloride and/or mixtures thereof. The thickness of the glass sheet can vary widely and can thus be matched excellently to the requirements of the particular situation. Preferably, glass sheets having a standard thickness of 0.8mm to 5mm, preferably 1.4mm to 2.9mm, are used for vehicle glass, for example having a standard thickness of 1.6mm or 2.1mm. The glass sheet may be colorless transparent or tinted or colored. When using a composite glass pane as a windshield in a passenger vehicle, it should be noted that the windshield has a sufficient light transmission in the central view, preferably at least 70% in the main viewing area a according to ECE-R43.
The thermoplastic interlayer comprises at least one thermoplastic polymer, preferably Ethylene Vinyl Acetate (EVA), polyvinyl butyral (PVB) or Polyurethane (PU) or mixtures or copolymers or derivatives thereof, with PVB being particularly preferred. The intermediate layer is typically formed from a thermoplastic film. Further preferred, the thermoplastic intermediate layer comprises at least 60% by weight, particularly preferably at least 70% by weight, in particular at least 90% by weight and for example at least 97% by weight, of polyvinyl butyral.
The thermoplastic intermediate layer may be formed by one or more thermoplastic films arranged one above the other, wherein the thickness of the thermoplastic film is preferably 0.25mm to 1mm, typically 0.38mm or 0.76mm.
A heating resistor layer is applied on the second surface (II) of the first glass plate. The second surface of the first glass plate may be an inner side of the first glass plate facing the interlayer. The heating resistor layer is used to heat the composite glass sheet, in particular its outer glass sheet (first glass sheet), in use. The surface resistance of the heating resistor layer should be sufficient to achieve rapid heating of the composite glass sheet. For this purpose, the heating resistor layer has a surface resistance of 0.3 to 6 ohms/square, preferably 0.5 to 5 ohms/square.
In principle, the heating resistor layer may be any electrically conductive coating that can be electrically contacted. The heating resistor layer may consist of an electrically heatable monolayer or of a layer sequence comprising such a monolayer. In particular, the heating resistor layer is transparent. In one embodiment of the invention, the heating resistor layer is a sun protection coating with preferably at least one metal-based, in particular silver-based, electrically conductive layer. Such sun protection coatings have reflective properties, in particular in the near infrared range, for example in the range from 800nm to 1500 nm.
The task of the sun protection coating is to filter out part of the solar radiation, in particular in the infrared range. The sun protection coating preferably comprises at least one thin transparent metal-containing layer embedded between at least each of the dielectric layers. Silver has been identified as the preferred metal for metal-containing layers because it has a relatively neutral color effect and selectively reflects infrared radiation outside the visible range of solar radiation. The dielectric layers have the task of improving the optical properties of the coated glass sheet and protecting the metal-containing functional layer from oxidation by their refractive index. Such sun protection layers, which can be produced, for example, by reactive sputtering processes, are used in a wide range of glazing for buildings, but have also been used in motor vehicles. In most cases, layer systems with two silver functional layers or three or four silver functional layers are used, because their effective coefficient of action, i.e. the reflectivity of infrared radiation outside the visible range, is greater than the transmissivity of visible radiation.
Suitable sun protection coatings are known, for example, from WO2013/104439A1 and DE 19927683C 1.
In another embodiment of the invention, the conductive coating is a emissivity-reducing coating. Coatings that reduce emissivity may also be referred to as thermal radiation reflective coatings, low emissivity coatings, or low E coatings (low emissivity). Such a coating is known for example from WO2013/131667 A1.
The emissivity-reducing coating preferably comprises at least one transparent conductive oxide-based conductive layer that provides reflective properties to thermal radiation. The transparent conductive oxide-based layer is also referred to as TCO layer hereinafter. The TCO layer is resistant to corrosion and can be used on exposed surfaces. The TCO layer is preferably formed based on indium tin oxide (ITO, indium tin oxide), but may also be formed based on indium zinc mixed oxide (IZO), aluminum doped zinc oxide (AZO), gallium doped zinc oxide (GZO), fluorine doped tin oxide (FTO, snO2: F) or antimony doped tin oxide (ATO, snO2: sb).
In addition to the at least one conductive layer, the sun protection coating or the emissivity-reducing coating generally has a dielectric layer, which is intended, for example, as an anti-reflection layer to increase the light transmittance, as a matching layer to improve the crystallinity of the conductive layer, as a smoothing layer to improve the surface structure of the layer lying thereon or as a barrier layer or barrier layer to prevent diffusion processes during temperature treatment. Common materials for the dielectric layer include silicon nitride, titanium oxide, aluminum nitride, tin oxide, zinc oxide, tin-zinc mixed oxides, and silicon oxide.
The above-described sun protection coatings and low E coatings advantageously enable improved temperature control, particularly under intense sunlight incidence.
In one embodiment, the conductive coating is a transparent conductive coating.
A coating is considered transparent in the sense of the present invention if it has an average transmission in the visible spectrum of at least 70%, preferably at least 75%, and thus does not significantly limit the transmission through the glazing.
The thickness of the heating resistor layer is preferably 80nm to 1000nm [ nm ], particularly preferably 140nm to 400nm or 700nm to 900nm. The heating resistor layer preferably covers a major part of the second surface (II) of the first glass plate.
The composite pane has opaque cover printing, in particular in the peripheral edge region, as is usual in the field of vehicles, in particular for windshields, backlights and sunroofs. The opaque overlay print may be formed of an ink having a decomposition property to the heating resistor layer.
The opaque overlay print preferably comprises at least one pigment and a frit. It may contain other chemical compounds. The frit may be melted or fused to it and the overlay print may thereby be permanently attached (fused or sintered) to the glass surface. The pigment provides opacity to the overlay print. Such a coating is usually applied as an enamel.
The ink forming the opaque overlay print comprises at least a pigment and a frit suspended in a liquid phase (solvent), such as water or an organic solvent, such as an alcohol. The pigment is typically a black pigment, such as pigment carbon black (carbon black), aniline black, bone black, iron oxide black, spinel black and/or graphite.
The decomposition properties of the printing ink to the heating resistor layer can be achieved by a suitable choice of frit. These are preferably formed based on bismuth zinc borate. To achieve decomposition properties, the bismuth and/or boron proportions are preferably higher than in conventional frits.
In a preferred embodiment, the printing ink comprises at least one pigment and a frit formed based on bismuth zinc borate.
In an advantageous embodiment, the covering print has a transition region, in which the covering print is not arranged completely on the second surface (II) of the first glass pane (1). The transition region is located between the entire face covering the print and the central viewing area of the composite glass sheet. The transition region may be at least partially light transmissive. Preferably, a transition region is created where the transmittance increases toward the center of the glass sheet. By this measure, the contact element can be masked optically in a targeted manner, while maintaining good electrical conductivity.
In a further advantageous embodiment, at least one dot-shaped and/or grid-shaped transition region is formed by the opaque cover print. Preferably, in the transition region, the coating print formed over the entire surface becomes a grid of dots gradually in the direction from the peripheral edge to the center of the composite glass pane. The transition region may be formed as an arrangement of dots and/or quadrilaterals, in particular rows, and/or as a grid of dots with reduced size. Transition regions are provided for masking contact elements, in particular bus bars. In other words, the contact element is less visible in this region from the external perspective. Thus, the composite glass sheet has an optically attractive appearance.
Furthermore, the opaque overlay print may extend at least partially as a dashed line in the transition region. Advantageously, then, the at least one line formed by the line-like opaque overlay print can be flexibly adapted to the respective installation situation. The linear opaque overlay print preferably has a thickness of 4 μm (micrometers) to 40 μm, particularly preferably 5 μm to 25 μm.
The heating resistor layer is electrically connected to an external voltage source via a contact element, wherein the contact element is formed by an electrically conductive print or an electrically conductive material, in particular an electrically conductive adhesive. The contact elements may be formed as bar-shaped busbars, flat conductors, round conductors or stranded wires. The contact element may be conductively connected to the opposite pole of the voltage source to heat the glass sheet. Whereby the composite glass sheet can be heated and thus remain haze-free.
Preferably, at least two bus bars (so-called bus bars) are arranged on the heating resistor layer and are electrically conductively connected thereto, wherein the bus bars are formed as two, in particular approximately parallel, strips. The length of the busbar depends on the size of the heating resistor layer or the surface to be heated. The length of the busbar is generally substantially equal to the length of the side edges of the heating resistor layer, but may also be slightly shorter. In the case of such a busbar, its longer dimension is referred to as the length, and its shorter dimension is referred to as the width.
More than two busbars may also be arranged on the heating resistor layer, preferably along two opposite lateral edges in the edge region. If the bus bars are arranged in the edge region, they can advantageously be contacted from the edge of the glass pane outwards in a simple manner.
The busbar may have a width of 0.1mm to 30mm, particularly preferably 8mm to 17 mm. The layer thickness of the bus bars may be 5 μm to 50 μm, in particular 8 μm to 20 μm. The busbars may be arranged, for example, along the edges of the first glass pane which face one another, wherein the busbars are formed from a printed and fired printing paste which preferably contains metal-containing particles, metal particles and/or carbon, in particular silver particles. Alternatively, however, the bus bars may also be formed as strips of conductive foil. The busbar then comprises, for example, at least aluminum, copper, tin-plated copper, gold, silver, zinc, tungsten and/or tin or an alloy thereof. The strips preferably have a thickness of 10 μm to 500 μm, particularly preferably 30 μm to 300 μm. The strips may be conductively connected to the conductive structure, for example via solder, via a conductive adhesive or by being laid directly. These materials and their thickness are particularly advantageous in terms of the very good electrical conductivity of the bus bars.
The bus bars may be formed transparent, translucent or opaque, preferably black. If the busbars are formed transparent or translucent, they are visible light transparent. The technical advantage is achieved that no or little bus bars on the glass plate can be perceived.
In a further advantageous embodiment, the bus bars, in particular transparent bus bars, can be arranged completely on the heating resistor layer. Alternatively, at least one busbar can be arranged on the heating resistor layer and on the opaque cover print.
In a further advantageous embodiment, teeth may be formed at least partially at the edges of the busbar. The edges of the buss bars may be formed at least in part in a trapezoidal, tooth, saw tooth or sinusoidal shape.
In other words, the busbar has a toothed edge with teeth and interdental spaces. Preferably, the teeth may be evenly distributed over the side edges of the busbar. A significant improvement in the form of rapid heating of the composite glass sheet is thereby achieved. By means of the teeth, material and thus costs are saved and an improved bus conductivity is obtained.
The buss bars are electrically contacted by one or more feeder lines. The feeder line is preferably formed as a flexible foil conductor (flat conductor, ribbon conductor). This is understood to mean an electrical conductor whose width is significantly greater than its thickness. Such foil conductors are for example strips or ribbons comprising or consisting of copper, tin-plated copper, aluminum, silver, gold or alloys thereof.
The composite pane is preferably provided as a glazing, particularly preferably as a glazing of a vehicle, in particular a motor vehicle, a building or a room. In a particularly advantageous embodiment, the composite glass pane is a windshield of a vehicle, in particular a passenger vehicle.
The invention also includes a composite glass sheet assembly, in particular a vehicle glazing unit, having a composite glass sheet according to the invention, a voltage source for applying a heating current to a contact element of a heating resistance layer. The composite glass sheet assembly may additionally provide a control unit (ECU) for controlling the voltage source. The voltage source and the associated control unit may be components of the vehicle.
The invention also includes a vehicle, in particular a passenger car, having a composite glass sheet according to the invention.
The invention also includes a method for manufacturing a composite glass sheet according to the invention, wherein at least
Applying a heating resistor layer on the second surface (II) of the first glass plate,
applying a cover print to the second surface (II) of the first glass plate,
applying two bus bars at the heating resistor layer, wherein the bus bars are arranged such that when a voltage is applied to the bus bars, a current flows through the heating resistor layer,
manufacturing a laminated stack comprising at least a first glass plate with a heating resistance layer and a cover print, a thermoplastic interlayer and a second glass plate in this order, and
connecting the second surface (II) of the first glass plate with the first surface (III) of the second glass plate via a thermoplastic interlayer.
The first and second glass sheets are laminated to one another via an interlayer, for example, by an autoclave process, a vacuum bag process, a vacuum ring process, a calendaring process, a vacuum laminator, or a combination thereof. The connection of the first glass pane to the second glass pane is usually carried out under the influence of heat, vacuum and/or pressure.
The heating resistor layer may be applied by methods known per se, preferably by cathode sputtering assisted by a magnetic field. This is particularly advantageous in terms of simple, fast, inexpensive and uniform coating of the first glass sheet. However, the conductive coating as heating resistor layer can also be applied, for example, by vapor deposition, chemical vapor deposition (chemical vapour deposition, CVD), plasma-assisted vapor deposition (PECVD), or by wet chemical processes.
The buss bars are preferably applied by printing and firing the conductive paste in a screen printing process or in an inkjet process. Alternatively, the bus bar may be applied as a strip of conductive foil onto the conductive coating, preferably laid, welded or glued.
In the screen printing process, the shaping of the sides is carried out by masking of the fabric by which the printing paste with the metal particles is pressed. The width of the bus bar can be predetermined and varied particularly simply by suitable masking, for example.
All embodiments mentioned for the individual features can also be freely combined with one another within the scope of the invention, provided that they are not contradictory.
The invention is explained in more detail below with reference to the drawings and the exemplary embodiments. The figures are schematic and not drawn to scale. The drawings are not intended to limit the invention in any way.
Wherein:
figure 1a shows a cross section through a first embodiment of a composite glass sheet according to the invention,
figure 1b shows a cross section through a second embodiment of a composite glass sheet according to the invention,
figure 1c shows a cross section through a third embodiment of a composite glass sheet according to the invention,
figure 2a shows a plan view of the first surface (I) of the first glass plate,
figure 2b shows a plan view of the second surface (II) of the first glass plate of figure 2a,
figure 3a shows a plan view of another embodiment of a first glass plate having an opaque transition region,
figure 3b shows a plan view of the second surface (II) of the first glass plate of figure 3a,
figure 4 shows an enlarged view of the fragment of figure 3a,
figure 5a shows a plan view of another first glass plate with a toothed bus bar,
figure 5b shows a plan view of the second surface (II) of the first glass plate of figure 5a,
figure 6a shows a plan view of another embodiment of a first glass plate with opaque transition regions and toothed bus bars,
FIG. 6b shows a plan view of the second surface (II) of the first glass plate of FIG. 6a, an
Fig. 7 shows an enlarged view of the fragment of fig. 6 a.
Data having numerical values should not generally be construed as exact values, but rather also include tolerances of +/-1% to at most +/-10%.
Fig. 1a shows a cross section through one embodiment of a composite glass sheet 10 according to the invention with a heating resistor layer 4. The composite glass sheet 10 comprises a first glass sheet 1 and a second glass sheet 2, which are connected to each other by a thermoplastic interlayer 3 made of PVB. The composite glass pane 10 can be provided as a windshield of a passenger vehicle, wherein the first glass pane 1 faces the outside environment as an outer glass pane and the second glass pane 2 faces the vehicle interior as an inner glass pane. The first glass plate 1 and the second glass plate 2 are made of soda lime glass, for example. For example, the thickness of the first glass plate 1 is 2.1mm, and the thickness of the second glass plate 2 is 1.6mm or 2.1mm.
The first glass plate 1 has a first surface (I) and a second surface (II). The second glass plate 2 has a first surface (III) and a second surface (IV). The first surface (I) of the first glass plate 1 and the first surface (III) of the second glass plate 2 face the external environment. The second surface (II) of the first glass pane 1 and the second surface (IV) of the second glass pane face the vehicle interior. The second surface (II) of the first glass plate 1 and the first surface (III) of the second glass plate 2 are opposite to each other. The composite pane 10 has an upper edge and a lower edge, wherein in the embodiment as a windshield the upper edge corresponds to the roof edge of the windshield and the lower edge corresponds to the engine edge of the windshield. In the installed position, the lower edge of the composite pane 10 is arranged downward in the direction of the passenger car engine.
The heating resistor layer 4 is arranged on the second surface (II) of the first glass plate 1. The heating resistor layer 4 extends over the entire second surface (II) of the first glass plate 1 minus a surrounding frame-like uncoated region having a width of, for example, 10 mm. The heating resistor layer 4 comprises, for example, one, two or three silver layers.
The composite glass pane 10 has an opaque cover print 11 on the circumferential edge region 12. The edge region 12 extends in a frame-like manner around the heating resistor layer 4. It has a width of about 10 a mm a. The cover print 11 is arranged on the second surface (II) of the first glass plate 1. The overlay print 11 may have a width of 10 mm. It extends substantially in the edge region 12. The cover print 11 is also arranged on the second surface (IV) of the second glass plate 2. There, the overlay print 11 may have a width of greater than 10 mm. The opaque overlay print 11 is formed of a printing ink having a decomposing property to the heating resistor layer 4. The opaque overlay print 11 preferably comprises at least one pigment and a frit.
The busbar 7.1 is arranged as a contact element 7 at the heating resistor layer 4. In this embodiment, the busbar 7.1 is formed of a transparent conductive material. The first bus bars 7.1 are arranged substantially parallel to the side edges of the composite glass sheet 10. The first busbar 7.1 has a width of 8 mm.
Fig. 1b shows a cross section through a second embodiment of a composite glass sheet 10 according to the invention. The configuration of the composite glass pane 10 corresponds to the configuration of fig. 1a, wherein the bus bars 7.1 are arranged at the heating resistor layer 4 and the opaque cover print 11. The busbar 7.1 has a width of more than 10 mm.
Fig. 1c shows a cross section through a third embodiment of a composite glass sheet 10 according to the invention. The configuration of the composite glass pane 10 corresponds to the configuration of fig. 1b, wherein the covering print 11 has a transition region 12.1. The transition region 12.1 is a region of the covering print 11 in which the covering print 11 is not arranged completely on the second surface (II) of the first glass pane 1. The transition region 12.1 is formed in a punctiform fashion. Alternatively or additionally, the transition region 12.1 may be formed as a grid or as an arrangement of points and/or quadrilaterals, in particular rows. The transition region 12.1 is intended to provide for optically masking the first busbar 7.1. In other words, the busbar 7.1 is less visible in this region from the external perspective. Thus, the composite glass sheet 10 has an optically attractive appearance.
Fig. 2a shows a plan view of the first surface (I) of the first glass pane 1, wherein the configuration of the composite glass pane 10 corresponds to the configuration of fig. 1 b. The contact elements 7 are formed as strip-shaped bus bars 7.1. The bus bar 7.1 may be conductively connected to a voltage source to heat the composite glass sheet 10. Thereby, the first glass plate 1 can be heated and thus kept haze-free.
Two busbars 7.1 are arranged in part on the heating resistor layer 4 and are electrically conductively connected thereto. The busbar 7.1 is formed as two, in particular approximately parallel, strips. The two busbars 7.1 are arranged on two opposite sides such that when a voltage is applied to the busbars 7.1, a current flows through the heating resistor layer 4.
The length of the busbar 7.1 depends on the size of the heating resistor layer 4 or the surface to be heated. In the present embodiment, the length of the busbar 7.1 is equal to the length of the side edges of the heating resistor layer 4, but may be slightly smaller. In the case of such a busbar 7.1, its longer dimension is referred to as length and its shorter dimension is referred to as width.
The two busbars 7.1 are arranged at least in sections in the edge region along two opposite lateral edges (for example a lower edge and an upper edge or right and left) on the heating resistor layer 4 and the cover print 11.
The busbars 7.1 may also each have a width of 8mm to 17 mm. The layer thickness of the busbar 7.1 may be 8 μm to 20 μm. The busbars 7.1 are arranged along the edges of the first glass pane 1 which face one another, wherein the busbars 7.1 are formed from a printed and fired printing paste which preferably contains metal-containing particles, metal particles and/or carbon, in particular silver particles. Alternatively, however, the busbar 7.1 may also be formed as a strip of conductive foil. The busbar 7.1 can be electrically conductively connected to the heating resistor layer 4, for example via solder, via an electrically conductive adhesive or by direct application.
Fig. 2b shows a plan view of the second surface (II) of the first glass plate 1 of fig. 2 a. The busbar 7.1 is formed in the shape of a strip. Two bus bars 7.1 are arranged along two opposite side edges. The busbar 7.1 is arranged at least partially in the edge region 12. One busbar 7.1 each is arranged at the heating resistor layer 4 and the opaque overlay print 11 such that the respective busbar 7.1 is in contact with the heating resistor layer 4 and the opaque overlay print 11.
Fig. 3a shows a plan view of a further embodiment of the first glass pane 1, wherein the configuration of the composite glass pane 10 corresponds to the configuration of fig. 2 a. Unlike fig. 2a, the opaque overlay print 11 has a transition region 12.1 with an increasing light transmittance towards the center of the glass sheet. The transition region 12.1 is formed as an arrangement, in particular a row, of dots 12.2. The opaque overlay print 11 and dots 12.2 are formed from a printing ink having a decomposition behaviour towards the heating resistor layer 4. The dots 12.2 may be of different sizes. The cover print 11 and the dots 12.2 are arranged on the second surface (II) of the first glass plate 1.
Fig. 3b shows a plan view of the second surface (II) of the first glass plate 1 of fig. 3 a. The busbar 7.1 covers the spot 12.2 and at least partially covers the printed matter 11.
Fig. 4 shows an enlarged view of the segment Z of fig. 3 a. The arrangement of the two rows of dots 12.2 can be clearly seen. The dots are of different sizes. The arrangement of the dots 12.2 forms a transition region 12.1 in the edge region 12 of the composite glass sheet 10. The cover print 11 and the dots 12.2 are arranged on the second surface (II) of the first glass plate 1.
Fig. 5a shows a plan view of another embodiment of the first glass pane 1. The plan view is directed to the first surface (I) of the first glass plate 1. In this embodiment, teeth 7.2 are formed at the edge of each busbar 7.1. The teeth 7.2 are evenly distributed over the edge of the busbar 7.1.
Fig. 5b shows a plan view of the second surface (II) of the first glass plate 1 of fig. 5a with the busbar 7.1, which has at least partially toothed edges. The teeth 7.2 of the toothed edge are directed towards the centre of the glass sheet.
Fig. 6a shows a plan view of another embodiment of the first glass pane 1. The first glass pane 1 has a toothed busbar 7.1 with an opaque transition region 12.1. The transition region 12.1 has an increasing light transmission towards the centre of the glass sheet. The transition region 12.1 is formed as an arrangement of dots 12.2 arranged in two rows. The opaque overlay print 11 and the dots 12.2 are formed from the same printing ink having decomposition properties to the heating resistor layer 4.
Fig. 6b shows a plan view of the second surface (II) of the first glass plate 1 of fig. 6 a.
Fig. 7 shows an enlarged view of the segment Z' of fig. 6 a. The arrangement of the two rows of dots 12.2 can be clearly seen. The dots 12.2 are of different sizes. The arrangement of the dots 12.2 forms a transition region 12.1 in the edge region 12 of the composite glass sheet 10. The cover print 11 and the dots 12.2 are arranged on the second surface (II) of the first glass plate 1.
List of reference numerals:
1. first glass plate
2. Second glass plate
3. Intermediate layer
4. Heating resistor layer
7. Contact element
7.1 Bus bar as contact element
7.2 Teeth (teeth) of busbar 7.1
9. Voltage source
10. Composite glass plate
11. Cover printing material
12. Edge region
12.1 Transition region
12.2 Point(s)
(I) The first surface of the first glass pane 1 (outer glass pane) facing away from the intermediate layer
(II) the second surface of the first glass plate 1 facing the interlayer
(III) the first surface of the second glass pane 2 (inner glass pane) facing the interlayer
(IV) a second surface of the second glass plate 2 facing away from the interlayer.

Claims (16)

1. A composite glass sheet comprising a first glass sheet (1) having a first surface (I) and a second surface (II), a second glass sheet (2) having a first surface (III) and a second surface (IV), and a thermoplastic intermediate layer (3) connecting the second surface (II) of the first glass sheet (1) and the first surface (III) of the second glass sheet (2),
wherein at least one heating resistor layer (4) is arranged on the second surface (II) of the first glass plate (1), wherein the heating resistor layer (4) has at least two contact elements (7) for electrically contacting the heating resistor layer (4), and wherein an opaque cover print (11) is arranged on the second surface (II) of the first glass plate (1).
2. The composite glass pane according to claim 1, wherein the covering print (11) has a transition region (12.1), wherein the covering print (11) is not arranged entirely in the edge region (12) on the second surface (II) of the first glass pane (1).
3. A composite glass sheet according to claim 1 or 2, wherein the overlay print (11) has a transition region (12.1) with a transmittance that increases towards the center of the glass sheet.
4. A composite glass pane according to any of claims 1 to 3, wherein the covering print (11) has a transition region (12.1) which is formed as an arrangement of dots (12.1) and/or quadrilaterals, in particular rows.
5. Composite glass pane according to any one of claims 1 to 4, wherein the opaque overlay print (11) extends at least partially as a dashed line.
6. The composite glass pane according to any one of claims 1 to 5, wherein the contact element (7) is formed as a bar-shaped busbar (7.1), a flat conductor, a round conductor or a stranded wire.
7. A composite glass pane according to any of claims 1 to 6, wherein the contact element (7) is formed from an electrically conductive print or an electrically conductive material.
8. A composite glass sheet according to any of claims 6 to 7, wherein the bus bars (7.1) are formed transparent, translucent or opaque, preferably black.
9. The composite glass sheet according to any of claims 6 to 8, wherein the bus bars (7.1) are arranged entirely on the heating resistor layer or at least one bus bar is arranged on the heating resistor layer and on the opaque overlay print.
10. The composite glass sheet according to any of claims 6 to 9, wherein the edges of the bus bar (7.1) are at least partially formed in a trapezoidal, toothed or sinusoidal shape.
11. Composite glass pane according to claim 10, wherein the teeth (7.2) are formed at least partially at the edges of the busbar (7.1) and the teeth (7.2) are evenly distributed on the side edges of the busbar (7.1).
12. The composite glass sheet according to any of claims 1 to 11, wherein the covering print (11) is formed of a printing ink having a decomposing property to the heating resistor layer (4).
13. The composite glass pane according to any of claims 1 to 12, wherein the composite glass pane (10) is formed as a windscreen of a vehicle, in particular a passenger car.
14. Composite glass pane arrangement, in particular a vehicle glazing unit, having a composite glass pane (10) according to any of claims 1 to 13, a voltage source for applying a heating current to a contact element (7, 7.1) of a heating resistance layer.
15. Vehicle, in particular passenger car, having a composite glass pane according to any of claims 1 to 13.
16. Method for manufacturing a composite glass sheet according to any of claims 1 to 13, wherein at least
Applying a heating resistor layer (4) on the second surface (II) of the first glass plate (1),
applying a cover print (11) to the second surface (II) of the first glass plate (1),
applying two busbars (7.1) to the heating resistor layer (4), wherein the busbars (7.1) are arranged such that when a voltage is applied to the busbars (7.1) a current flows through the heating resistor layer (4),
manufacturing a layer stack comprising at least a first glass plate (1) with a heating resistance layer (4) and a cover print (11), a thermoplastic interlayer (3) and a second glass plate (2) in the following order, and
connecting the second surface (II) of the first glass plate (1) to the first surface (III) of the second glass plate (2) via a thermoplastic interlayer (3).
CN202280005050.1A 2021-10-28 2022-09-26 Composite glass sheet with heating resistor layer Pending CN116601023A (en)

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EP21205355 2021-10-28
EP21205355.7 2021-10-28
PCT/EP2022/076604 WO2023072501A1 (en) 2021-10-28 2022-09-26 Composite panel with heat resistance layer

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CN116601023A true CN116601023A (en) 2023-08-15

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EP1131268A1 (en) * 1998-11-06 2001-09-12 Glaverbel Glazing panels
DE19927683C1 (en) 1999-06-17 2001-01-25 Sekurit Saint Gobain Deutsch Laminated glass pane reflecting sun and heat rays
DE10022409C1 (en) 2000-05-09 2002-04-04 Saint Gobain Sekurit D Gmbh Process for producing a composite pane with a transparent, corrosion-protected surface coating and composite pane
KR101589854B1 (en) 2012-01-10 2016-01-28 쌩-고벵 글래스 프랑스 Transparent pane with electrically conductive coating
KR101676233B1 (en) 2012-03-05 2016-11-14 쌩-고벵 글래스 프랑스 Sheet with coating which reflects thermal radiation
US10773997B2 (en) 2016-05-17 2020-09-15 Saint-Gobain Glass France Transparent pane
DE202021101982U1 (en) 2021-04-13 2021-04-20 Saint-Gobain Sekurit Deutschland Gmbh & Co. Kg Composite pane

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