DE4139959A1 - Electrically heated, clear flexible sheet, esp. for car rear windows - has layers of thermoplastic, e.g. PET or PVC, with interlayer of conductive metal oxide, pref. indium oxide - Google Patents

Electrically heated, clear flexible sheet, esp. for car rear windows - has layers of thermoplastic, e.g. PET or PVC, with interlayer of conductive metal oxide, pref. indium oxide

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Publication number
DE4139959A1
DE4139959A1 DE4139959A DE4139959A DE4139959A1 DE 4139959 A1 DE4139959 A1 DE 4139959A1 DE 4139959 A DE4139959 A DE 4139959A DE 4139959 A DE4139959 A DE 4139959A DE 4139959 A1 DE4139959 A1 DE 4139959A1
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Germany
Prior art keywords
layer
metal oxide
pet
pref
esp
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.)
Withdrawn
Application number
DE4139959A
Other languages
German (de)
Inventor
Juergen Korinth
Matthias 8000 Muenchen De Albrecht
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.)
Bayerische Motoren Werke AG
Original Assignee
Bayerische Motoren Werke AG
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Publication date
Application filed by Bayerische Motoren Werke AG filed Critical Bayerische Motoren Werke AG
Priority to DE4139959A priority Critical patent/DE4139959A1/en
Publication of DE4139959A1 publication Critical patent/DE4139959A1/en
Withdrawn legal-status Critical Current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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/304—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl halide (co)polymers, e.g. PVC, PVDC, PVF, PVDF
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/40—Layered products comprising a layer of synthetic resin comprising polyurethanes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • 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
    • B60—VEHICLES IN GENERAL
    • B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
    • B60J1/00—Windows; Windscreens; Accessories therefor
    • B60J1/18—Windows; Windscreens; Accessories therefor arranged at the vehicle rear
    • B60J1/1807—Windows; Windscreens; Accessories therefor arranged at the vehicle rear movable for vehicles with convertible top
    • B60J1/1815—Windows; Windscreens; Accessories therefor arranged at the vehicle rear movable for vehicles with convertible top non-adjustably mounted in and moving with the soft-top cover
    • 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
    • H05B3/20—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
    • H05B3/34—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater flexible, e.g. heating nets or webs
    • H05B3/36—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater flexible, e.g. heating nets or webs heating conductor embedded in insulating material
    • 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
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/40—Properties of the layers or laminate having particular optical properties
    • B32B2307/412—Transparent
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/584—Scratch resistance
    • 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
    • B32B2327/00—Polyvinylhalogenides
    • B32B2327/06—PVC, i.e. polyvinylchloride
    • 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
    • B32B2367/00—Polyesters, e.g. PET, i.e. polyethylene terephthalate
    • 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
    • B32B2375/00—Polyureas; Polyurethanes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2605/00—Vehicles
    • B32B2605/006—Transparent parts other than made from inorganic glass, e.g. polycarbonate glazings
    • 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
    • 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
    • H05B2203/017—Manufacturing methods or apparatus for heaters

Abstract

Electrically-heatable, flexible and transparent sheets (I) are claimed, esp. for rear windows of convertibles. (I) consist of plastic, esp. thermoplastic (II) and have an electrically conducting metal oxide layer (8,13) (III) with low surface resistance. (III) is a transparent layer 2-4 (pref. 3) microns thick, pref. indium oxide, applied to a polymer film (7, 11), pref. PET, PVC or PU (polyurethane) etc.. The outer, opposite surface of (I) is coated with a scratch-resistant layer (3, 4), pref. SiO2. (I) has (a) an upper PVC layer (5), a PU adhesive (6) and a polymer film (7; esp. PET) with a metal oxide layer (8), or (b) an outer PET layer (10) and a metal oxide (13)-coated PET layer (11), layers (10) and (11, 13) being bonded together with a PVB adhesive (12). USE/ADVANTAGE - A heatable rear window for cars is provided without using wire heating grids which are difficult to produce and install. The metal oxide layer enables rapid and uniform defrosting over the whole surface of the sheet.

Description

Die Erfindung betrifft eine elektrisch beheizbare, flexi­ ble und transparente Scheibe, insbesondere für das Heck­ fenster von Cabriolets, gemäß dem Oberbegriff des An­ spruchs 1.The invention relates to an electrically heated, flexi ble and transparent pane, especially for the rear Cabriolet windows, according to the preamble of An saying 1.

Es sind bereits Heckfenster für Cabriolets bekannt, die aus Kunststoff bestehen und die elektrisch beheizbar sind. Bei diesen Heckfenstern erfolgt jedoch die Stromzu­ führung über gewebte Heizgitter aus dünnen metallischen Drähten. Diese Fenster haben den Nachteil, daß die Heiz­ gitter relativ schwer herstellbar und schwierig zu mon­ tieren sind. Ferner beeinträchtigen die Heizgitter die Durchsichtfläche.Rear windows for convertibles are already known are made of plastic and are electrically heated are. With these rear windows, however, the power supply takes place guidance over woven heating grids made of thin metallic Wires. These windows have the disadvantage that the heating lattice relatively difficult to manufacture and difficult to assemble animals are. Furthermore, the heating grids affect the See-through area.

Aufgabe der Erfindung ist es, eine elektrisch beheizbare, flexible und transparente Scheibe zu schaffen, die diese Nachteile vermeidet.The object of the invention is to provide an electrically heatable flexible and transparent pane to create this Avoids disadvantages.

Diese Aufgabe wird erfindungsgemäß bei einer gattungsge­ mäßen Scheibe durch die Merkmale des kennzeichnenden Teils des Anspruchs 1 gelöst. This object is inventively in a genus moderate disc by the characteristics of the characteristic Part of claim 1 solved.  

Durch das Aufbringen einer elektrisch leitfähigen Schicht aus einem Metalloxid auf eine transparente, flexible Po­ lymerfolie ist die Herstellung einer Verbundkonstruktion möglich. Als Metalloxid kann vorzugsweise Indiumoxid ver­ wendet werden. Das Indiumoxid kann in einem Vakuumverfah­ ren, beispielsweise einem plasmaunterstützten, chemischen Dampfauftragungsverfahren, auf die jeweilige Polymerfolie aufgebracht werden. Die Metalloxidschicht ist so dünn auf die Polymerfolie aufgetragen, daß die Schicht durchsich­ tig ist. Beispielsweise beträgt die Dicke der Metalloxid­ schicht 2 bis 4 µm, insbesondere 3 µm. Geeignete Polymerfolien sind beispielsweise Polyethylenterephthlat (PETP), Polyvinylbutyrad (PVB), Polyurethan (PU), Polyvinylchlorid (PVC) oder andere geeignete Substratmaterialien. Vorzugs­ weise ist die heizbare, elektrisch leitfähige Metalloxid­ schicht zwischen zwei Kunststoffolien oder zwei Kunst­ stoffschichten ausgebildet. Zur Erhöhung der Kratzfe­ stigkeit können die Folienverbundaußenflächen mit kratz­ festen Lacksystemen versehen werden. Ein solches Lack­ system ist beispielsweise aus der EP-A 02 67 376 bekannt. Dieser Lack kann in einer Ausführungsform aus SiO2 beste­ hen. Durch die großflächige Ausbildung der elektrisch leitfähigen Schicht über die gesamte Fläche der Heck­ scheibe ist eine erhöhte Abtaugeschwindigkeit möglich. Aufgrund des niedrigen Flächenwiderstandes der elektrisch leitfähigen Metalloxidschicht ergibt sich eine verkürzte Ansprechzeit bis zu einem Abtaubeginn einer vereisten Scheibe. Der Abtauvorgang selbst erfolgt großflächig und gleichmäßig.The application of an electrically conductive layer of a metal oxide to a transparent, flexible polymer film makes it possible to produce a composite structure. Indium oxide can preferably be used as the metal oxide. The indium oxide can be applied to the respective polymer film in a vacuum process, for example a plasma-assisted chemical vapor deposition process. The metal oxide layer is applied so thinly on the polymer film that the layer is transparent. For example, the thickness of the metal oxide layer is 2 to 4 μm, in particular 3 μm. Suitable polymer films are, for example, polyethylene terephthalate (PETP), polyvinyl butyrad (PVB), polyurethane (PU), polyvinyl chloride (PVC) or other suitable substrate materials. The heatable, electrically conductive metal oxide layer is preferably formed between two plastic films or two plastic layers. To increase the scratch resistance, the film composite outer surfaces can be provided with scratch-resistant paint systems. Such a paint system is known for example from EP-A 02 67 376. In one embodiment, this lacquer can consist of SiO 2 . Due to the large-scale formation of the electrically conductive layer over the entire area of the rear window, an increased defrosting speed is possible. Due to the low surface resistance of the electrically conductive metal oxide layer, there is a shorter response time until the start of defrosting of an icy pane. The defrosting process itself takes place over a large area and evenly.

Ausführungsformen der Erfindung werden nachstehend anhand der Zeichnungen beispielshalber beschrieben. Dabei zei­ gen: Embodiments of the invention are described below the drawings described by way of example. Here zei gene:  

Fig. 1 eine Querschnittsansicht eines Teils einer er­ sten Ausführungsform einer elektrisch beheizba­ ren, flexiblen und transparenten Scheibe, Fig. 1 is a cross-sectional view of part of an embodiment of an electrically he most beheizba reindeer, flexible and transparent disk,

Fig. 2 eine Querschnittsansicht eines Teils einer zweiten Ausführungsform einer elektrisch be­ heizbaren, flexiblen und transparenten Scheibe und Fig. 2 is a cross-sectional view of part of a second embodiment of an electrically heatable, flexible and transparent pane and

Fig. 3 eine Ansicht von oben auf eine elektrisch be­ heizbare, flexible und transparente Scheibe. Fig. 3 is a top view of an electrically heatable, flexible and transparent pane.

In der Fig. 1 ist der Schichtaufbau 2 einer elektrisch beheizbaren, flexiblen und transparenten Scheibe 1 ge­ zeigt. Die beiden gegenüberliegenden, äußeren Schichten 3 und 4 sind kratzfeste Schichten mit einer niedrigen Bruchdehnung. Die Schichten können beispielsweise aus SiO2 bestehen, wie dies in der EP-A 02 67 376 beschrieben ist. An die obere Schicht 3 schließt sich eine PVC- Schicht 5 an, auf die ein PU-Kleber 6 aufgetragen ist. Auf einer Polymerfolie 7, die in der vorliegenden Ausfüh­ rungsform aus PET besteht, ist eine Metalloxidschicht 8 in einer Dicke zwischen 2 und 4 µm, vorzugsweise 3 µm, aufgetragen. Als Metalloxide kommen alle elektrisch leit­ fähigen Materialien in Frage. Vorzugsweise wird Indiumo­ xid verwendet. Die mit der Metalloxidschicht 8 versehene Polymerfolie 7 ist über die Klebeschicht 6 mit der PVC- Schicht 5 verbunden. Auf der anderen Seite der Polymer­ folie 7 ist die kratzfeste, untere Schicht 4 aufgebracht.In Fig. 1, the layer structure 2 of an electrically heatable, flexible and transparent disc 1 is shown ge. The two opposite, outer layers 3 and 4 are scratch-resistant layers with a low elongation at break. The layers can consist, for example, of SiO 2 , as described in EP-A 02 67 376. A PVC layer 5 , to which a PU adhesive 6 is applied, adjoins the upper layer 3 . On a polymer film 7 , which in the present embodiment is made of PET, a metal oxide layer 8 is applied in a thickness between 2 and 4 μm, preferably 3 μm. All electrically conductive materials are suitable as metal oxides. Indium oxide is preferably used. The polymer film 7 provided with the metal oxide layer 8 is connected to the PVC layer 5 via the adhesive layer 6 . On the other side of the polymer film 7 , the scratch-resistant lower layer 4 is applied.

Das Auftragen der Metalloxidschicht 8 erfolgt in einem Vakuumverfahren. Ein dafür bekanntes Verfahren ist das Plasma enhanced chemical Vapour Deposition-Verfahren (P- CVD). The metal oxide layer 8 is applied in a vacuum process. A known method for this is the plasma enhanced chemical vapor deposition method (P-CVD).

In der Fig. 2 ist ein weiterer Schichtaufbau 9 einer elektrisch beheizbaren, flexiblen und transparenten Scheibe gezeigt, der sich von der in der Fig. 1 gezeig­ ten Ausführungsform dadurch unterscheidet, daß an die obere, kratzfeste Schicht 3 sich eine PET-Schicht 10 an­ schließt. Als Polymerfolie 11 ist ebenfalls als Werkstoff PET vorgesehen. Die Verbindung zwischen den beiden Schichten 10 und 11 erfolgt durch eine PVB-Kleberfolie 12. Die auf der unteren PET-Folie aufgetragene Metall­ oxid-Schicht 13 besteht vorzugsweise, ebenfalls wie bei der Ausführungsform der Fig. 1, aus Indiumoxid. An die mit der Metalloxidschicht 13 versehene Polymerfolie 11 schließt sich ggf. eine kratzfeste Schicht 4 an.In FIG. 2, a further layer structure is shown 9 of an electrically heated, flexible and transparent pane, which differs from the gezeig th in the Fig. 1 embodiment in that on the upper, scratch resistant layer 3, a PET film 10 at closes. PET is also provided as the polymer film 11 . The connection between the two layers 10 and 11 is made by a PVB adhesive film 12 . The applied to the lower PET film metal oxide layer 13 is preferably, as in the embodiment of FIG. 1, made of indium oxide. A scratch-resistant layer 4 is optionally connected to the polymer film 11 provided with the metal oxide layer 13 .

In der Fig. 3 ist eine trapezförmige Heckscheibe 14 ei­ nes Cabriolets gezeigt. Der aus den einzelnen Schichten bestehende Schichtaufbau 2, 9 der Scheibe erstreckt sich über die gesamte Scheibenfläche. Zur Stromzuführung sind Stromzuführungsfäden oder Bänder 15 und 16 an der Ober- und der Unterkante der Heckscheibe 14 in den Schichtauf­ bau eingebracht. In einer anderen Ausführungsform erfolgt die Stromzuführung- an den beiden Seitenrändern über ge­ eignete Fäden oder Bänder.In Fig. 3, a trapezoidal rear window 14 egg nes convertible is shown. The layer structure 2 , 9 of the pane, which consists of the individual layers, extends over the entire pane surface. For power supply, power supply threads or tapes 15 and 16 are introduced at the top and bottom of the rear window 14 into the layer structure. In another embodiment, the power supply takes place on the two side edges via suitable threads or tapes.

Claims (9)

1. Elektrisch beheizbare, flexible und transparente Scheibe, insbesondere für das Heckfenster von Cabriolets, wobei die Scheiben aus einem Kunststoff, insbesondere aus einem thermoplastischen Kunststoff besteht, dadurch gekennzeichnet, daß die Scheibe eine elektrisch leitfähige Metalloxidschicht (8, 13) mit einem niedrigen Flächenwiderstand aufweist.1. Electrically heatable, flexible and transparent pane, in particular for the rear window of convertibles, the pane consisting of a plastic, in particular a thermoplastic, characterized in that the pane has an electrically conductive metal oxide layer ( 8 , 13 ) with a low surface resistance having. 2. Scheibe nach Anspruch 1, dadurch gekennzeichnet, daß die Metalloxidschicht (8, 13) eine Dicke von 2 bis 4 µm, insbesondere 3 µm, aufweist, wobei die Dicke so gewählt ist, daß die Metalloxidschicht (8, 13) durchsichtig ist.2. Disc according to claim 1, characterized in that the metal oxide layer ( 8 , 13 ) has a thickness of 2 to 4 µm, in particular 3 µm, the thickness being chosen so that the metal oxide layer ( 8 , 13 ) is transparent. 3. Scheibe nach den Ansprüchen 1 oder 2, dadurch ge­ kennzeichnet, daß die Metalloxidschicht (8, 13) In­ diumoxid ist.3. Disc according to claims 1 or 2, characterized in that the metal oxide layer ( 8 , 13 ) is in diumoxide. 4. Scheibe nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Metall­ oxidschicht (8, 13) auf eine Polymerfolie (7, 11) aufgebracht ist. 4. Disc according to one or more of the preceding claims, characterized in that the metal oxide layer ( 8 , 13 ) on a polymer film ( 7 , 11 ) is applied. 5. Scheibe nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Polymer­ folie aus PET, PVC, PU oder anderen geeigneten Sub­ stratmaterialien besteht.5. Disc according to one or more of the previous ones Claims, characterized in that the polymer film made of PET, PVC, PU or other suitable sub strategic materials exist. 6. Scheibe nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Scheibe (1) an ihren äußeren, gegenüberliegenden Flächen, mit einer kratzfesten Schicht (3, 4) versehen ist.6. Disc according to one or more of the preceding claims, characterized in that the disc ( 1 ) is provided on its outer, opposite surfaces with a scratch-resistant layer ( 3 , 4 ). 7. Scheibe nach Anspruch 6, dadurch gekennzeichnet, daß die kratzfeste Schicht (3, 4) aus SiO2 besteht.7. Disc according to claim 6, characterized in that the scratch-resistant layer ( 3 , 4 ) consists of SiO 2 . 8. Scheibe nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Scheibe (1) einen Schichtaufbau (2) aufweist, der aus einer oberen PVC-Schicht (5), einem nachfolgenden PU-Kle­ ber (6), einer mit einer Metalloxidschicht (8) ver­ sehenen Polymerfolie (7), insbesondere aus PET, be­ steht.8. Disc according to one or more of the preceding claims, characterized in that the disc ( 1 ) has a layer structure ( 2 ) consisting of an upper PVC layer ( 5 ), a subsequent PU adhesive ( 6 ), one with a metal oxide layer ( 8 ) provided polymer film ( 7 ), in particular made of PET, is available. 9. Scheibe nach den Ansprüchen 1 bis 7, dadurch gekenn­ zeichnet, daß der Schichtaufbau (9) eine äußere PET-Schicht (10) und eine mit einer Metalloxid­ schicht (13) versehene PET-Schicht (11) aufweist, wobei die Schichten (10) und (11, 13) durch einen PVB-Kleber (12) miteinander verbunden sind.9. Disk according to claims 1 to 7, characterized in that the layer structure ( 9 ) has an outer PET layer ( 10 ) and a layer with a metal oxide ( 13 ) provided PET layer ( 11 ), the layers ( 10 ) and ( 11 , 13 ) are connected to each other by a PVB adhesive ( 12 ).
DE4139959A 1991-12-04 1991-12-04 Electrically heated, clear flexible sheet, esp. for car rear windows - has layers of thermoplastic, e.g. PET or PVC, with interlayer of conductive metal oxide, pref. indium oxide Withdrawn DE4139959A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE4139959A DE4139959A1 (en) 1991-12-04 1991-12-04 Electrically heated, clear flexible sheet, esp. for car rear windows - has layers of thermoplastic, e.g. PET or PVC, with interlayer of conductive metal oxide, pref. indium oxide

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4139959A DE4139959A1 (en) 1991-12-04 1991-12-04 Electrically heated, clear flexible sheet, esp. for car rear windows - has layers of thermoplastic, e.g. PET or PVC, with interlayer of conductive metal oxide, pref. indium oxide

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DE4139959A1 true DE4139959A1 (en) 1993-06-09

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10137788A1 (en) * 2001-08-06 2003-03-06 Cts Fahrzeug Dachsysteme Gmbh Method for heating the rear window of a convertible motor car, has an electrically conductive frame which forms one electrical connection for the heater matrix
DE10153067B4 (en) * 2001-10-30 2004-07-22 Webasto Vehicle Systems International Gmbh Device for opening and closing at least one opening in a vehicle roof with at least one cover
EP1577133A2 (en) * 2004-03-05 2005-09-21 Inova GmbH Technische Entwicklungen Vehicle panes, protective foils and overprints and maufacturing process therefor
WO2006117137A1 (en) * 2005-04-29 2006-11-09 Paolo Tripodi Invisible system of antifogging and antifreezing for transparent and non transparent large surfaces
DE102007004953A1 (en) * 2007-01-26 2008-07-31 Tesa Ag heating element

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DE10137788A1 (en) * 2001-08-06 2003-03-06 Cts Fahrzeug Dachsysteme Gmbh Method for heating the rear window of a convertible motor car, has an electrically conductive frame which forms one electrical connection for the heater matrix
DE10137788B4 (en) * 2001-08-06 2004-06-03 Cts Fahrzeug-Dachsysteme Gmbh Adjustable vehicle roof with a rear window
DE10153067B4 (en) * 2001-10-30 2004-07-22 Webasto Vehicle Systems International Gmbh Device for opening and closing at least one opening in a vehicle roof with at least one cover
EP1577133A2 (en) * 2004-03-05 2005-09-21 Inova GmbH Technische Entwicklungen Vehicle panes, protective foils and overprints and maufacturing process therefor
EP1577133A3 (en) * 2004-03-05 2008-10-29 Inova GmbH Technische Entwicklungen Vehicle panes, protective foils and overprints and maufacturing process therefor
WO2006117137A1 (en) * 2005-04-29 2006-11-09 Paolo Tripodi Invisible system of antifogging and antifreezing for transparent and non transparent large surfaces
DE102007004953A1 (en) * 2007-01-26 2008-07-31 Tesa Ag heating element
US9332593B2 (en) 2007-01-26 2016-05-03 Tesa Se Heating element, and heatable pane comprising a heating element

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