EP3049603B1 - Spacer for spacing glass panes of a multi-glazed window, multi-glazed window, vapour barrier film for a spacer, method for producing a vapour barrier film, and method for producing a spacer - Google Patents

Spacer for spacing glass panes of a multi-glazed window, multi-glazed window, vapour barrier film for a spacer, method for producing a vapour barrier film, and method for producing a spacer Download PDF

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Publication number
EP3049603B1
EP3049603B1 EP13774375.3A EP13774375A EP3049603B1 EP 3049603 B1 EP3049603 B1 EP 3049603B1 EP 13774375 A EP13774375 A EP 13774375A EP 3049603 B1 EP3049603 B1 EP 3049603B1
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EP
European Patent Office
Prior art keywords
spacer
barrier film
layer
vapour barrier
film
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German (de)
French (fr)
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EP3049603A1 (en
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Hans Rudolf Mäder
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Alu Pro SRL
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Alu Pro SRL
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    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/66—Units comprising two or more parallel glass or like panes permanently secured together

Definitions

  • the invention relates to a spacer for spacing glass panes of a multiple-glazed window, a multiple-glazed window, a vapor barrier film for a spacer, a method for producing a vapor barrier film and a method for producing a spacer according to the features of the preambles of the independent claims.
  • Multi-glazed windows are colloquially also called multi-pane insulating glass. This type of glazing is primarily used for thermal insulation, i.e. preventing heat loss to a cold environment or preventing the interior from being heated by a relatively warmer environment.
  • Multiple-glazed windows usually consist of at least two glass panes arranged in parallel, which are spaced apart by a spacer. This creates a space between the panes of glass which, when filled with air or gas, forms an insulation layer.
  • spacers are provided with a cavity which contains desiccant for drying the gas enclosed in the space between the panes.
  • the spacers are usually designed so that they prevent the diffusion of water vapor from outside the space between the panes into the space between the panes and at the same time ensure the gas and water vapor exchange between the atmosphere of the space between the panes and the drying agent.
  • the air spaces are usually filled with noble gases, primarily argon, to improve insulation.
  • a spacer which has a desiccant incorporated into a plastic matrix.
  • the spacer also has a vapor barrier to prevent water vapor diffusion.
  • the vapor barrier is welded to the base of the spacer.
  • a spacer which has an insert made of a multilayer composite film.
  • the insert is introduced into the outer layer of the base body and thus leaves diffusion gaps open between the base body of the spacer and the sealing material. The water vapor diffusion cannot therefore be optimally prevented.
  • a spacer for a multiple-glazed window which comprises a layer of ethylene vinylol alcohol to increase the sealing properties.
  • the layer of ethylene vinylol alcohol is attached facing the interior so that water vapor can continue to diffuse outside this layer. Optimal sealing properties cannot therefore be achieved.
  • this object is achieved with a spacer, a multiple-glazed window, a vapor barrier film, a method for producing a vapor barrier film and a method for producing a spacer with the features of the characterizing part of the independent claims.
  • a spacer for spacing glass panes of a multiple-glazed window which comprises the following components: A base body which comprises an outside, an inside that can be directed towards the space between the glass panes and two end faces for receiving a glass pane. Furthermore, the spacer comprises a vapor barrier film which is applied to the base body, the base body including a drying agent. The vapor barrier film surrounds the base body on the outside and, according to the invention, at least partially on the end faces.
  • the spacer preferably consists of the components mentioned.
  • Such an arrangement of the vapor barrier film leads to an optimized primer for an adhesive tape or for a primary seal for fastening the spacer to the glass panes and at the same time to a reduction in diffusion gaps on the sides of the spacer.
  • the vapor barrier film is applied to the outer contour of the spacer and thus forms the outer layer of the spacer after application.
  • the Vapor barrier film covered by no other layers with the exception of an adhesive tape.
  • the base body of the spacer is preferably made as in FIG WO2012 / 140005 described.
  • the base body can also be a rigid base body, for example an olefin-like material, into which drying granules can be poured.
  • An embodiment according to WO2012 / 140005 has the advantage that, depending on the degree of foaming, the material costs are reduced and the heat conduction of the spacer is also smaller; However, it is possible that the extrusion tolerances are greater than with non-foamed profiles. This geometric disadvantage can largely be eliminated by using vapor barrier films.
  • the arrangement of the vapor barrier film on three sides of the spacer has the advantage that the efficient profile dimensional accuracy in the profile width through the profile film protection can easily be used by a calibration tool. Any foaming volume tolerances are compensated in the processing technology-uncritical profile height.
  • the end faces of the spacer can have a step (so-called butyl edge) and the vapor barrier film can surround the spacer at the end faces essentially at least up to the step.
  • a step on the end faces means that the distance between the respective opposite end faces changes.
  • the distance between the end faces on the outside of the spacer is smaller than the distance between the end faces in the direction of the inside of the spacer.
  • the step makes it easier to attach a primary seal when installing the multiple-glazed window.
  • the vapor barrier film is also an optimal primer for a primary seal and thus enables a long service life of the multi-glazed window and prevents the diffusion of water vapor.
  • the vapor barrier film can, however, preferably also essentially completely surround the base body of the spacer at the end faces.
  • a vapor barrier film arranged in this way also provides an optimal primer for an adhesive tape, which is used to fix the spacer when assembling a multiple-glazed window. Furthermore, the diffusion possibilities are essentially eliminated when the end faces are completely covered.
  • An adhesive tape can partially be arranged on the end faces of the base body of the spacer.
  • the adhesive tape is arranged on the vapor barrier film.
  • the adhesive tape enables the spacer to be precisely positioned during assembly to a multi-glazed window.
  • the adhesive tape also acts as a seal with respect to vapor diffusion.
  • the adhesive tape can be an acrylate adhesive tape.
  • the adhesive tape can also be provided with a cover film, which can be peeled off before the spacer is used.
  • a primary seal is arranged on the end faces of the spacer, partly on the vapor barrier film.
  • the primary seal is preferably a butyl seal.
  • Such a primary seal arranged on the vapor barrier film seals the interior space between the glass panes in a diffusion-tight manner and adheres optimally to the vapor barrier film.
  • the vapor barrier film can be a multilayer film and preferably has an outer layer of SiO x that can be directed against the glass panes.
  • the vapor barrier film can also include an inner layer that can be welded to the base body, in particular a layer made of thermoplastic, preferably an oriented polypropylene.
  • the vapor barrier film can be welded onto the base body of the spacer and can thus be easily manufactured and fastened securely and diffusion-tight to the base body.
  • the vapor barrier film can comprise a carrier layer made of polyethylene terephthalate.
  • a polyethylene terephthalate carrier layer leads to a carrier layer with a high tensile force, which prevents the SiO x coating from breaking during the application of the film.
  • the vapor barrier film can comprise a second layer of SiO x .
  • a second SiO x layer acts as a second gas brake protected against mechanical influences. Furthermore, so-called “pinhole” coating defects are practically eliminated. A “pinhole” is a small process-related coating defect.
  • the vapor barrier film can comprise a sealing layer made of ethylene vinyl alcohol.
  • Ethylene vinyl alcohol is particularly gas-tight and therefore effectively prevents gas and water vapor diffusion through the vapor barrier film.
  • the spacer according to the invention preferably has an essentially four-edged shape in profile.
  • the profile cross-section of a spacer according to the invention has an essentially rectangular shape with a first side length, the outside or the inside, of between 6 and 30 mm, and particularly preferably 12 or 16 mm side length.
  • the side length depends in particular on the planned application: for applications for triple glazing, total widths of 6-18mm are typically preferred.
  • the end face preferably has a side length of between 6 to 16 mm, more preferably 6 to 8 mm, particularly preferably 7 mm.
  • a multiple-glazed window with a spacer as described above, continues to achieve the stated object.
  • Such a multiple-glazed window is very durable and has no water vapor condensation in the space between the window panes.
  • the Multiple-glazed windows have a spacer as described above in combination with a primary seal, preferably a butyl seal.
  • the multiple-glazed window can comprise a secondary seal, in particular a secondary seal made of polysulfite, polyurethane, hotmelt or silicone, which adheres to the SiO x layer.
  • Such a sealed multiple-glazed window can be installed in a cost-effective manner and has a long service life.
  • a vapor barrier film for a spacer which is produced in particular by connecting, further in particular gluing, a first film to a second film also leads to the solution of the stated object.
  • the vapor barrier film comprises a first film comprising a polyethylene terephthalate carrier layer and an outer layer made of SiO x .
  • the vapor barrier film furthermore comprises a second film comprising a sealing layer made of ethylene vinyl alcohol and a second layer made of SiO x .
  • the first film and the second film are preferably composed of the materials mentioned.
  • an inner layer made of thermoplastic, preferably oriented polypropylene, is applied to the sealing layer made of ethylene vinylol alcohol.
  • Such a vapor barrier film is inherently stable in adhesion and has a very high film adhesion to the base body. Furthermore, such a vapor barrier film leads to an optimal adhesive base for the sealants or adhesives required to connect the glass panes to the spacer. Furthermore, such a vapor barrier film leads to optimal diffusion prevention.
  • the inner layer is preferably applied as a sealing layer on the composite film.
  • Such a method leads to a reliable connection of the individual film layers and enables the film to be welded onto a spacer without the sealing layers such as the ethylene vinylol alcohol layer or the SiO x layer being destroyed when the vapor barrier film is applied to the spacer. Furthermore, such a vapor barrier film can be produced cost-effectively using such a method.
  • a method for producing a spacer which includes the step of welding on a weldable layer, in particular a thermoplastic layer, a vapor barrier film, preferably as described above, on a spacer.
  • a vapor barrier film welded on in this way is connected to the spacer in a diffusion-tight manner and leads to a long durability of the vapor barrier film on the spacer.
  • a method for producing a multiple-glazed window by connecting, preferably gluing, a spacer as described above to at least one insulating glass pane also leads to the solution of the stated object.
  • a window produced in this way can be produced inexpensively and leads to a high-quality, long-lasting window.
  • FIG. 1 shows a spacer 1 according to the invention in a first embodiment.
  • the spacer 1 has a base body 2 which consists of a polyolefin base material and a desiccant. Such a base body is for example in the WO2012 / 140005 shown.
  • the base body 2 has an outer side 3 which is covered by a vapor barrier film 6.
  • the vapor barrier film 6 also partially surrounds the front sides 5 of the base body 2.
  • the front sides 5 have a step 7 so that a primary seal 9 can easily be introduced between the base body 2 and the window panes (not shown) for assembly.
  • the end faces 5 are also partially covered by an adhesive tape 8.
  • the adhesive tape 8 is an acrylate adhesive tape.
  • the primary seal 9 is a butyl adhesive.
  • the vapor barrier film 6 is a film having a structure as shown in FIG Figure 4 described.
  • FIG. 2 shows a spacer 1 according to the invention in a second embodiment.
  • the spacer 1 has a base body 2 which has an outside 3, an inside 4 and two end faces 5.
  • the inside 4 is not coated, so that an exchange of air between the desiccant contained in the base body 2 and the space between two panes of glass when the spacer 1 is installed can take place.
  • a vapor barrier film 6 essentially completely encloses the outside 3 and the end faces 5 of the base body 2.
  • the end faces 5 also have a step 7.
  • An adhesive tape 8 is arranged below the step 7, in the installed state directed towards the interior space between two panes.
  • the adhesive tape 8 is an acrylate adhesive tape. Above the step 7 against the outside 3, a primary seal is made on the end face 5 Butyl glue arranged.
  • This primary seal is attached to the insulating glass panes during the assembly process of the spacer. Arranging the vapor barrier film 6 essentially along the entire end faces 5 leads to an optimal diffusion barrier and reliably prevents diffusion gaps. Furthermore, the vapor barrier film 6 represents an optimal primer for the adhesive tape 8 and the primary seal 9.
  • FIG. 3 shows a multiple-glazed window with a spacer 1 in the first embodiment according to FIG Figure 1 .
  • the spacer 1 has a base body 2 and is connected to the window panes 15 in a gas-tight manner on its end faces 8 (see FIG. 1).
  • the gas-tight connection is made by an adhesive tape 8 below the step 7 on the face 5 (see Figure 1 ) towards the inside 4 (see Figure 1 ) and achieved in particular by a primary seal 9 above level 7.
  • the primary seal is a butyl adhesive that adheres optimally to the vapor barrier film 6.
  • the vapor barrier film 6 surrounds the spacer 1 at least partially on three sides. Furthermore, the spacer is protected against external influences by a secondary seal 17.
  • the vapor barrier film 6 has a structure according to FIG.
  • FIG 4 shows the schematic structure of a vapor barrier film 6.
  • the vapor barrier film 6 has an outer layer 10 made of SiO x , ie facing away from a spacer, which is applied to a carrier layer 12 made of polyethylene terephthalate.
  • This first film is glued to a second film by means of an adhesive 16.
  • the second film has a sealing layer 14 made of ethylene vinyl alcohol, which with a second Layer 13 is coated from SiO x .
  • the bonding by the adhesive 16 between the two films lies between the second layer 13 and the carrier layer 12.
  • An inner layer made of oriented polypropylene is applied to the sealing layer 14 made of ethylene vinyl alcohol.
  • the polypropylene layer is more weldable, so that the film as a whole lies on a spacer 1 (see Figure 1 and 2 ) can be welded on.
  • the polypropylene layer is applied as a sealing layer, i.e. in a liquid state, to the ethylene vinyl alcohol layer.
  • Such a film leads to an optimal tightness and can cost-effectively on the spacer 1 (see Figure 1 and 2 ) are attached.
  • the outer layer 10 SiO x in particular leads to an optimal primer for a primary seal 9 (see FIG Figure 1 and 2 ) made of butyl, the secondary seal 17 (see Figure 3 ) and for an adhesive tape 8 (see Figure 1 and 2 ) made of acrylate. This also reduces rejects during production.
  • the arrangement of two SiO x layers improves the tightness of the vapor barrier film 6, since coating defects such as pinholes are only arranged directly one above the other with a very low probability.

Description

Die Erfindung betrifft einen Abstandhalter für die Beabstandung von Glassscheiben eines mehrfachverglasten Fensters, ein mehrfachverglastes Fenster, eine Dampfsperrfolie für einen Abstandhalter, ein Verfahren zur Herstellung einer Dampfsperrfolie sowie ein Verfahren zur Herstellung eines Abstandhalters, gemäss den Merkmalen der Oberbegriffe der unabhängigen Ansprüche.The invention relates to a spacer for spacing glass panes of a multiple-glazed window, a multiple-glazed window, a vapor barrier film for a spacer, a method for producing a vapor barrier film and a method for producing a spacer according to the features of the preambles of the independent claims.

Mehrfachverglaste Fenster werden umgangssprachlich auch Mehrscheiben-Isolierglas genannt. Diese Art der Verglasung dient vornämlich der Wärmedämmerung, d.h. der Verhinderung von Wärmeverlusten an eine kalte Umgebung oder der Verhinderung der Erwärmung des Innenraums durch eine relativ wärmere Umgebung. Mehrfachverglaste Fenster bestehen üblicherweise aus mindestens zwei parallel angeordneten Glasscheiben, die von einem Abstandhalter beabstandet werden. So entsteht zwischen den Glasscheiben ein Scheibenzwischenraum, der mit Luft oder Gas befüllt eine Isolationsschicht darstellt.Multi-glazed windows are colloquially also called multi-pane insulating glass. This type of glazing is primarily used for thermal insulation, i.e. preventing heat loss to a cold environment or preventing the interior from being heated by a relatively warmer environment. Multiple-glazed windows usually consist of at least two glass panes arranged in parallel, which are spaced apart by a spacer. This creates a space between the panes of glass which, when filled with air or gas, forms an insulation layer.

Üblicherweise, werden Abstandhalter mit einem Hohlraum versehen, der zur Trocknung des im Scheibenzwischenraum eingeschlossenen Gases Trocknungsmittel enthält.Usually, spacers are provided with a cavity which contains desiccant for drying the gas enclosed in the space between the panes.

Die Abstandhalter sind üblicherweise so ausgelegt, dass sie die Diffusion von Wasserdampf von ausserhalb des Scheibenzwischenraums in den Scheibenzwischenraum unterbinden und gleichzeitig den Gas- und Wasserdampfaustausch zwischen der Atmosphäre des Scheibenzwischenraums und dem Trocknungsmittel gewährleisten. Die Luftzwischenräume sind üblicherweise zur Isolationsverbesserung mit Edelgasen, vornehmlich Argon gefüllt.The spacers are usually designed so that they prevent the diffusion of water vapor from outside the space between the panes into the space between the panes and at the same time ensure the gas and water vapor exchange between the atmosphere of the space between the panes and the drying agent. The air spaces are usually filled with noble gases, primarily argon, to improve insulation.

Aus der WO 2013/050969 ist ein Abstandhalter bekannt gemäß dem Oberbegriff des Anspruchs 1.From the WO 2013/050969 a spacer is known according to the preamble of claim 1.

Aus der WO 2012/14005 ist ein Abstandhalter bekannt, der ein in eine Kunststoffmatrix eingebrachtes Trocknungsmittel aufweist. Zur Verhinderung von Wasserdampfdiffusion weist der Abstandhalter weiterhin eine Dampfsperre auf. Die Dampfsperre ist mit dem Grundkörper des Abstandhalters verschweisst.From the WO 2012/14005 a spacer is known which has a desiccant incorporated into a plastic matrix. The spacer also has a vapor barrier to prevent water vapor diffusion. The vapor barrier is welded to the base of the spacer.

Aus der DE 94 08 764 U1 ist ein Abstandhalter bekannt, der eine Einlage aus einer mehrschichtigen Verbundfolie aufweist. Die Einlage ist in die Aussenschicht des Grundkörpers eingebracht und lässt somit Diffusionsspalte zwischen dem Grundkörper des Abstandhalters und dem Dichtungsmaterial offen. Die Wasserdampfdiffusion kann somit nicht optimal verhindert werden.From the DE 94 08 764 U1 a spacer is known which has an insert made of a multilayer composite film. The insert is introduced into the outer layer of the base body and thus leaves diffusion gaps open between the base body of the spacer and the sealing material. The water vapor diffusion cannot therefore be optimally prevented.

Aus der DE 195 30 838 ist ein Abstandhalter für ein mehrfachverglastes Fenster bekannt, der zur Erhöhung der Dichtungseigenschaften eine Schicht aus Ethylenvinylolalkohol umfasst. Die Schicht aus Ethylenvinylolalkohol ist zum Innenraum hin weisend angebracht, so dass ausserhalb dieser Schicht weiterhin Wasserdampf diffundieren kann. Es können somit keine optimalen Dichtungseigenschaften erreicht werden.From the DE 195 30 838 a spacer for a multiple-glazed window is known which comprises a layer of ethylene vinylol alcohol to increase the sealing properties. The layer of ethylene vinylol alcohol is attached facing the interior so that water vapor can continue to diffuse outside this layer. Optimal sealing properties cannot therefore be achieved.

Es ist daher Aufgabe der vorliegenden Erfindung, die Nachteile des Standes der Technik zu überwinden und insbesondere einen Abstandhalter, ein mehrfachverglastes Fenster, eine Dampfsperrfolie, ein Verfahren zur Herstellung einer Dampfsperrfolie sowie ein Verfahren zur Herstellung eines Abstandhalters zu schaffen, das eine optimale Diffusionsdichtigkeit sowie eine optimierte Haftung des Abstandhalters im Fenster ermöglicht.It is therefore the object of the present invention to overcome the disadvantages of the prior art and, in particular, to create a spacer, a multiple-glazed window, a vapor barrier film, a method for producing a vapor barrier film and a method for producing a spacer which has optimal diffusion tightness and a enables optimized adhesion of the spacer in the window.

Erfindungsgemäss wird diese Aufgabe mit einem Abstandhalter, einem mehrfachverglasten Fenster, einer Dampfsperrfolie, einem Verfahren zur Herstellung einer Dampfsperrfolie sowie einem Verfahren zur Herstellung eines Abstandhalters mit den Merkmalen des kennzeichnenden Teils der unabhängigen Ansprüche gelöst.According to the invention, this object is achieved with a spacer, a multiple-glazed window, a vapor barrier film, a method for producing a vapor barrier film and a method for producing a spacer with the features of the characterizing part of the independent claims.

Insbesondere wird die Aufgabe durch einen Abstandhalter für die Beabstandung von Glasscheiben eines mehrfachverglasten Fensters gelöst, der die folgenden Bauteile umfasst: Einen Grundkörper, der einen Aussenseite, eine gegen den Zwischenraum zwischen den Glasscheiben richtbare Innenseite sowie zwei Stirnseiten zur Aufnahme einer Glassscheibe umfasst. Weiterhin umfasst der Abstandhalter eine Dampfsperrfolie, die auf dem Grundkörper aufgebracht ist, wobei der Grundkörper ein Trocknungsmittel umfasst. Die Dampfsperrfolie umgibt den Grundkörper an der Aussenseite und erfindungsgemäss zumindest teilweise an den Stirnseiten. Bevorzugt besteht der Abstandhalter aus den genannten Bauteilen.In particular, the object is achieved by a spacer for spacing glass panes of a multiple-glazed window, which comprises the following components: A base body which comprises an outside, an inside that can be directed towards the space between the glass panes and two end faces for receiving a glass pane. Furthermore, the spacer comprises a vapor barrier film which is applied to the base body, the base body including a drying agent. The vapor barrier film surrounds the base body on the outside and, according to the invention, at least partially on the end faces. The spacer preferably consists of the components mentioned.

Eine derartige Anordnung der Dampfsperrfolie führt zu einem optimierten Haftgrund für ein Adhäsivband oder für eine Primärdichtung zum Befestigen des Abstandhalters an den Glassscheiben und gleichzeitig zu einer Reduktion von Diffusionsspalten an den Seiten des Abstandhalters.Such an arrangement of the vapor barrier film leads to an optimized primer for an adhesive tape or for a primary seal for fastening the spacer to the glass panes and at the same time to a reduction in diffusion gaps on the sides of the spacer.

Die Dampfsperrfolie ist hierbei auf der Aussenkontur des Abstandhalters aufgebracht und bildet somit nach dem Aufbringen die Aussenschicht des Abstandhalters. Insbesondere ist die Dampfsperrfolie mit Ausnahme eines Adhäsivbandes von keinen weiteren Schichten bedeckt.The vapor barrier film is applied to the outer contour of the spacer and thus forms the outer layer of the spacer after application. In particular, the Vapor barrier film covered by no other layers with the exception of an adhesive tape.

Der Grundkörper des Abstandhalters ist bevorzugt hergestellt, wie in der WO2012/140005 beschrieben. Der Grundkörper kann ausserdem ein starrer Grundkörper sein, beispielsweise ein olefinähnliches Material, in den ein Trocknungsgranulat einfüllbar ist. Eine Ausführungsform gemäss WO2012/140005 hat den Vorteil, dass je nach Schäumungsgrad die Materialkosten gesenkt werden und die Wärmeleitung des Abstandhalters ebenfalls kleiner ist; es kann jedoch sein, dass die Extrudiertoleranzen grösser sind, als bei ungeschäumten Profilen. Dieser Geometrienachteil kann durch die Verwendung von Dampfsperrfolien weitgehend eliminiert werden. Die Anordnung der Dampfsperrfolie and drei Seiten des Abstandhalters hat den Vorteil, dass die effiziente Profilmasshaltigkeit in der Profilbreite durch den Profil-Folienschutz problemlos durch ein Kalibrierwerkzeug genutzt werden kann. Allfällige Schäumungsvolumentoleranzen werden in der verarbeitungstechnisch unkritischen Profilhöhe kompensiert.The base body of the spacer is preferably made as in FIG WO2012 / 140005 described. The base body can also be a rigid base body, for example an olefin-like material, into which drying granules can be poured. An embodiment according to WO2012 / 140005 has the advantage that, depending on the degree of foaming, the material costs are reduced and the heat conduction of the spacer is also smaller; However, it is possible that the extrusion tolerances are greater than with non-foamed profiles. This geometric disadvantage can largely be eliminated by using vapor barrier films. The arrangement of the vapor barrier film on three sides of the spacer has the advantage that the efficient profile dimensional accuracy in the profile width through the profile film protection can easily be used by a calibration tool. Any foaming volume tolerances are compensated in the processing technology-uncritical profile height.

Die Stirnseiten des Abstandhalters können eine Stufe (sog. Butylkante) aufweisen und die Dampfsperrfolie kann den Abstandhalter an den Stirnseiten im Wesentlichen wenigstens bis zur Stufe umgeben.The end faces of the spacer can have a step (so-called butyl edge) and the vapor barrier film can surround the spacer at the end faces essentially at least up to the step.

Eine Stufe auf den Stirnseiten bedeutet, dass der Abstand zwischen den jeweiligen sich gegenüber liegenden Stirnseiten sich verändert. Der Abstand zwischen den Stirnseiten an der Aussenseite des Abstandhalters ist hierbei kleiner als der Abstand zwischen den Stirnseiten in Richtung Innenseite des Abstandhalters.A step on the end faces means that the distance between the respective opposite end faces changes. The distance between the end faces on the outside of the spacer is smaller than the distance between the end faces in the direction of the inside of the spacer.

Durch die Stufe wird das Anbringen einer Primärdichtung bei der Montage des mehrfachverglasten Fensters erleichtert. Die Dampfsperrfolie ist weiterhin gleichzeitig ein optimaler Haftgrund für eine Primärdichtung und ermöglicht somit eine lange Lebensdauer des mehrfachverglasten Fensters sowie verhindert die Diffusion von Wasserdampf.The step makes it easier to attach a primary seal when installing the multiple-glazed window. The vapor barrier film is also an optimal primer for a primary seal and thus enables a long service life of the multi-glazed window and prevents the diffusion of water vapor.

Die Dampfsperrfolie kann den Grundkörper des Abstandhalters aber bevorzugt auch an den Stirnseiten im Wesentlichen vollständig umgeben.The vapor barrier film can, however, preferably also essentially completely surround the base body of the spacer at the end faces.

Eine derartig angeordnete Dampfsperrfolie ergibt zusätzlich einen optimalen Haftgrund für ein Adhäsivband, welches zur Fixierung des Abstandhalters bei der Montage eines mehrfachverglasten Fensters verwendet wird. Des Weiteren sind die Diffusionsmöglichkeiten bei einer vollständigen Bedeckung der Stirnseiten im Wesentlichen eliminiert.A vapor barrier film arranged in this way also provides an optimal primer for an adhesive tape, which is used to fix the spacer when assembling a multiple-glazed window. Furthermore, the diffusion possibilities are essentially eliminated when the end faces are completely covered.

Auf den Stirnseiten des Grundkörpers des Abstandhalters kann teilweise ein Adhäsivband angeordnet sein. Das Adhäsivband ist auf der Dampfsperrfolie angeordnet. Das Adhäsivband ermöglicht ein genaues Positionieren des Abstandhalters bei der Montage zu einem mehrfachverglasten Fenster. Des Weiteren wirkt das Adhäsivband als Dichtung bezüglich Dampfdiffusion.An adhesive tape can partially be arranged on the end faces of the base body of the spacer. The adhesive tape is arranged on the vapor barrier film. The adhesive tape enables the spacer to be precisely positioned during assembly to a multi-glazed window. The adhesive tape also acts as a seal with respect to vapor diffusion.

Das Adhäsivband kann ein Acrylat-Adhäsivtape sein.The adhesive tape can be an acrylate adhesive tape.

Ein Anbringen des Adhäsivbandes direkt auf die Dampfsperrfolie ermöglicht einen Verzicht auf eine Coronabehandlung, welches die Produktionskosten senkt und den Ausschuss an Abstandhaltern während der Produktion reduziert. Das Adhäsivband kann weiterhin mit einer Abdeckfolie versehen sein, welche vor der Verwendung des Abstandhalters abgezogen werden kann. Auf den Stirnseiten des Abstandhalters, teilweise auf der Dampfsperrfolie, ist eine Primärdichtung angeordnet. Die Primärdichtung ist bevorzugt eine Butyldichtung.Attaching the adhesive tape directly to the vapor barrier film makes it possible to dispense with corona treatment, which lowers production costs and reduces the waste of spacers during production. The adhesive tape can also be provided with a cover film, which can be peeled off before the spacer is used. On the A primary seal is arranged on the end faces of the spacer, partly on the vapor barrier film. The primary seal is preferably a butyl seal.

Eine derartige auf der Dampfsperrfolie angeordnete Primärdichtung versiegelt den Innenraum zwischen den Glasscheiben diffusionsdicht und haftet optimal auf der Dampfsperrfolie.Such a primary seal arranged on the vapor barrier film seals the interior space between the glass panes in a diffusion-tight manner and adheres optimally to the vapor barrier film.

Die Dampfsperrfolie kann eine Mehrschichtfolie sein und weist bevorzugt eine äussere, gegen die Glasscheiben richtbare, Schicht aus SiOx auf.The vapor barrier film can be a multilayer film and preferably has an outer layer of SiO x that can be directed against the glass panes.

Eine äussere SiOx-Schicht bietet einen optimalen Haftgrund für verschiedenste Klebstoffe und Dichtstoffe. Somit kann der Abstandhalter sicher und diffusionsdicht mit den Glassscheiben verbunden werden. Ein derartig hergestelltes mehrfachverglastes Fenster weist somit eine sehr lange Lebensdauer auf. Die Dampfsperrfolie kann ausserdem eine innere, mit dem Grundkörper verschweissbare, Schicht umfassen, insbesondere eine Schicht aus thermoplastischem Kunststoff, bevorzugt ein orientiertes Polypropylen.An outer SiO x layer offers an optimal primer for a wide variety of adhesives and sealants. The spacer can thus be connected to the glass panes in a secure and diffusion-tight manner. A multiple-glazed window produced in this way therefore has a very long service life. The vapor barrier film can also include an inner layer that can be welded to the base body, in particular a layer made of thermoplastic, preferably an oriented polypropylene.

Mit einer derartigen inneren Schicht kann die Dampfsperrfolie auf den Grundkörper des Abstandhalters aufgeschweisst werden und kann somit leicht hergestellt und sicher und diffusionsdicht am Grundkörper befestigt werden.With an inner layer of this type, the vapor barrier film can be welded onto the base body of the spacer and can thus be easily manufactured and fastened securely and diffusion-tight to the base body.

Die Dampfsperrfolie kann eine Trägerschicht aus Polyethylenterephtalat umfassen. Eine Polyethylenterephtalat-Trägerschicht führt zu einer zugkraftstarken Trägerschicht, die ein Brechen der SiOx-Beschichtung während der Folienapplikation verhindert.The vapor barrier film can comprise a carrier layer made of polyethylene terephthalate. A polyethylene terephthalate carrier layer leads to a carrier layer with a high tensile force, which prevents the SiO x coating from breaking during the application of the film.

Die Dampfsperrfolie kann eine zweite Schicht aus SiOx umfassen. Eine zweite SiOx-Schicht wirkt als zweite gegen mechanische Einflüsse geschützte Gasbremse. Weiterhin werden so genannte "Pinhole" Beschichtungsfehler praktisch eliminiert. Ein "Pinhole" ist ein kleiner prozessbedingter Beschichtungsfehler.The vapor barrier film can comprise a second layer of SiO x . A second SiO x layer acts as a second gas brake protected against mechanical influences. Furthermore, so-called "pinhole" coating defects are practically eliminated. A "pinhole" is a small process-related coating defect.

Die Dampfsperrfolie kann eine Dichtschicht aus Ethylenvinylalkohol umfassen.The vapor barrier film can comprise a sealing layer made of ethylene vinyl alcohol.

Ethylenvinylalkohol ist besonderes gasdicht und verhindert somit wirksam Gas- und Wasserdampfdiffusion durch die Dampfsperrfolie.Ethylene vinyl alcohol is particularly gas-tight and therefore effectively prevents gas and water vapor diffusion through the vapor barrier film.

Vorzugsweise weist der erfindungsgemässe Abstandhalter eine im Profil im Wesentlichen vier kantige Form auf. In einer bevorzugten Ausführungsform weist der Profilquerschnitt eines erfindungsgemässen Abstandhalters eine im wesentlichen rechteckige Form auf mit einer ersten Seitenlänge, der Aussenseite bzw der Innenseite, von zwischen 6 und 30mm, und besonders bevorzugt 12 bzw. 16mm Seitenlänge auf. Die Seitenlänge hängt insbesondere auch von der geplanten Anwendung ab: bei Anwendungen für Dreifachverglasungen sind typischerweise Gesamtbreiten von 6 - 18mm bevorzugt. Bevorzugt weist die Stirnseite, eine Seitenlänge von zwischen 6 bis 16mm, weiter bevorzugt 6 bis 8mm, besonders bevorzugt 7mm auf.The spacer according to the invention preferably has an essentially four-edged shape in profile. In a preferred embodiment, the profile cross-section of a spacer according to the invention has an essentially rectangular shape with a first side length, the outside or the inside, of between 6 and 30 mm, and particularly preferably 12 or 16 mm side length. The side length depends in particular on the planned application: for applications for triple glazing, total widths of 6-18mm are typically preferred. The end face preferably has a side length of between 6 to 16 mm, more preferably 6 to 8 mm, particularly preferably 7 mm.

Zur Lösung der genannten Aufgabe führt weiterhin ein mehrfachverglastes Fenster mit einem Abstandhalter wie vorhergehend beschrieben.A multiple-glazed window with a spacer, as described above, continues to achieve the stated object.

Ein derartiges mehrfachverglastes Fenster ist sehr lange haltbar, und weist keine Wasserdampfkondensation im Zwischenraum zwischen den Fensterglasscheiben auf. Insbesondere weist das mehrfachverglaste Fenster einen Abstandhalter wie vorhergehend beschrieben in Kombination mit einer Primärdichtung, bevorzugt einer Butyldichtung, auf.Such a multiple-glazed window is very durable and has no water vapor condensation in the space between the window panes. In particular, the Multiple-glazed windows have a spacer as described above in combination with a primary seal, preferably a butyl seal.

Das mehrfachverglastes Fenster kann eine Sekundärdichtung umfassen, insbesondere eine Sekundärdichtung aus Polysulfit, Polyurethan, Hotmelt oder Silikon, deren Haftung auf der SiOx-Schicht gegeben ist.The multiple-glazed window can comprise a secondary seal, in particular a secondary seal made of polysulfite, polyurethane, hotmelt or silicone, which adheres to the SiO x layer.

Ein derartiges abgedichtetes mehrfachverglastes Fenster ist kostenoptimiert zu montieren und weist eine lange Haltbarkeit auf.Such a sealed multiple-glazed window can be installed in a cost-effective manner and has a long service life.

Zur Lösung der genannten Aufgabe führt weiterhin eine Dampfsperrfolie für einen Abstandhalter, welche insbesondere durch das Verbinden, weiter insbesondere das Verkleben, von einer ersten Folie mit einer zweiten Folie hergestellt ist. Die Dampfsperrfolie umfasst eine erste Folie umfassend eine Polyethylenterephtalat-Trägerschicht und eine äussere Schicht aus SiOx. Die Dampfsperrfolie umfasst weiterhin eine zweite Folie umfassend eine Dichtschicht aus Ethylenvinylalkohol und eine zweite Schicht aus SiOx. Bevorzugt bestehen die erste Folie sowie die zweite Folie aus den genannten Materialien. Weiterhin ist auf der Dichtschicht aus Ethylenvinylolalkohol eine innere Schicht aus thermoplastischem Kunststoff, bevorzugt orientiertem Polypropylen, aufgebracht.A vapor barrier film for a spacer, which is produced in particular by connecting, further in particular gluing, a first film to a second film also leads to the solution of the stated object. The vapor barrier film comprises a first film comprising a polyethylene terephthalate carrier layer and an outer layer made of SiO x . The vapor barrier film furthermore comprises a second film comprising a sealing layer made of ethylene vinyl alcohol and a second layer made of SiO x . The first film and the second film are preferably composed of the materials mentioned. Furthermore, an inner layer made of thermoplastic, preferably oriented polypropylene, is applied to the sealing layer made of ethylene vinylol alcohol.

Eine derartige Dampfsperrfolie ist in sich haftungsstabil und weist eine sehr hohe Folienhaftung zum Grundkörper auf. Des Weiteren führt eine derartige Dampfsperrfolie zu einem optimalen Haftgrund für die benötigten Dicht- beziehungsweise Klebestoffe zum Verbinden der Glasscheiben mit dem Abstandhalter. Des Weiteren führt eine derartige Dampfsperrfolie zu einer optimalen Diffusionsverhinderung.Such a vapor barrier film is inherently stable in adhesion and has a very high film adhesion to the base body. Furthermore, such a vapor barrier film leads to an optimal adhesive base for the sealants or adhesives required to connect the glass panes to the spacer. Furthermore, such a vapor barrier film leads to optimal diffusion prevention.

Zur Lösung der genannten Aufgabe führt weiterhin ein Verfahren zur Herstellung einer Dampfsperrfolie, welches die folgenden Schritte umfasst:

  • Verbinden einer ersten Folie umfassend eine Polyethylenterephtalat-Trägerschicht und eine äussere Schicht aus SiOx mit einer zweiten Folie umfassend eine Dichtschicht aus Ethylenvinylolalkohol und eine zweite Schicht aus SiOx, wobei die Trägerschicht der ersten Folie mit der zweiten Schicht aus SiOx der zweiten Folie verklebt wird;
  • Aufbringen einer inneren Schicht aus thermoplastischem Kunststoff, bevorzugt orientiertem Polypropylen, auf die Dichtschicht aus Ethylenvinylolalkohol.
A method for the production of a vapor barrier film, which comprises the following steps:
  • Joining a first film comprising a polyethylene terephthalate carrier layer and an outer layer made of SiO x with a second film comprising a sealing layer made of ethylene vinylol alcohol and a second layer made of SiO x , the carrier layer of the first film being bonded to the second layer of SiOx of the second film ;
  • Application of an inner layer made of thermoplastic, preferably oriented polypropylene, to the sealing layer made of ethylene vinylol alcohol.

Bevorzugt wird die innere Schicht als Siegelschicht auf der Verbundfolie aufgebracht.The inner layer is preferably applied as a sealing layer on the composite film.

Ein derartiges Verfahren führt zu einer zuverlässigen Verbindung der einzelnen Folienschichten und ermöglicht das Verschweissen der Folie auf einem Abstandhalter ohne dass Dichtungsschichten wie die Ethylenvinylolalkoholschicht oder die SiOx-Schicht beim Aufbringen der Dampfsperrfolie auf den Abstandhalter zerstört werden. Des Weiteren ist eine derartige Dampfsperrfolie mit einem solchen Verfahren kostengünstig herstellbar.Such a method leads to a reliable connection of the individual film layers and enables the film to be welded onto a spacer without the sealing layers such as the ethylene vinylol alcohol layer or the SiO x layer being destroyed when the vapor barrier film is applied to the spacer. Furthermore, such a vapor barrier film can be produced cost-effectively using such a method.

Zur Lösung der genannten Aufgabe führt weiterhin ein Verfahren zur Herstellung eines Abstandhalters, welches den Schritt des Aufschweissens einer schweissbaren Schicht, insbesondere einer thermoplastischen Schicht, einer Dampfsperrfolie, bevorzugt wie vorhergehend beschrieben, auf einen Abstandhalter umfasst. Eine derartig aufgeschweisste Dampfsperrfolie ist diffusionsdicht mit dem Abstandhalter verbunden und führt zu einer langen Haltbarkeit der Dampfsperrfolie auf dem Abstandhalter.A method for producing a spacer, which includes the step of welding on a weldable layer, in particular a thermoplastic layer, a vapor barrier film, preferably as described above, on a spacer. A vapor barrier film welded on in this way is connected to the spacer in a diffusion-tight manner and leads to a long durability of the vapor barrier film on the spacer.

Zur Lösung der genannten Aufgabe führt weiterhin ein Verfahren zur Herstellung eines mehrfachverglasten Fensters durch Verbinden, bevorzugt Verkleben, eines Abstandhalters wie vorhergehend beschrieben mit zumindest einer Isolierglasscheibe.A method for producing a multiple-glazed window by connecting, preferably gluing, a spacer as described above to at least one insulating glass pane also leads to the solution of the stated object.

Ein derartig hergestelltes Fenster ist kostengünstig herstellbar und führt zu einem qualitativ hochwertigen, lange haltbaren Fenster.A window produced in this way can be produced inexpensively and leads to a high-quality, long-lasting window.

Im Folgenden wird die Erfindung anhand von Zeichnungen und konkreten Ausführungsbeispielen näher erläutert. Dabei zeigt

  • Figur 1 einen schematischen Querschnitt durch einen erfindungsgemässen Abstandhalter;
  • Figur 2 einen schematischen Querschnitt durch eine zweite Ausführungsform eines erfindungsgemässen Abstandhalters;
  • Figur 3 einen schematischen Querschnitt durch ein mehrfachverglastes Fenster;
  • Figur 4 eine schematische Darstellung des Schichtaufbaus einer Dampfsperrfolie.
The invention is explained in more detail below with reference to drawings and specific exemplary embodiments. It shows
  • Figure 1 a schematic cross section through a spacer according to the invention;
  • Figure 2 a schematic cross section through a second embodiment of a spacer according to the invention;
  • Figure 3 a schematic cross section through a multi-glazed window;
  • Figure 4 a schematic representation of the layer structure of a vapor barrier film.

Figur 1 zeigt einen erfindungsgemässen Abstandhalter 1 in einer ersten Ausführungsform. Der Abstandhalter 1 weist einen Grundkörper 2 auf, der aus einem Polyolefingrundmaterial besteht und ein Trocknungsmittel umfasst. Ein derartiger Grundkörper ist beispielsweise in der WO2012/140005 gezeigt. Der Grundkörper 2 weist eine Aussenseite 3 auf, die von einer Dampfsperrfolie 6 bedeckt ist. Die Dampfsperrfolie 6 umgibt weiterhin teilweise die Stirnseiten 5 des Grundkörpers 2. Die Stirnseiten 5 weisen eine Stufe 7 auf, so dass zur Montage eine Primärdichtung 9 leicht zwischen dem Grundkörper 2 und den Fensterscheiben (nicht dargestellt) eingebracht werden kann. Die Stirnseiten 5 sind weiterhin teilweise von einem Adhäsivband 8 bedeckt. Das Adhäsivband 8 ist ein Acrylat-Adhäsivtape. Die Innenseite 4 des Grundkörpers 2, die in einem eingebauten Zustand gegen den Zwischenraum zwischen zwei Fensterscheiben gerichtet ist, ist nicht bedeckt, so dass das in dem Grundkörper 2 enthaltene Trocknungsmittel den Innenraum zwischen den Glasscheiben trocknen kann. Die Primärdichtung 9 ist ein Butylkleber. Die Dampfsperrfolie 6 ist eine Folie mit einem Aufbau, wie in Figur 4 beschrieben. Figure 1 shows a spacer 1 according to the invention in a first embodiment. The spacer 1 has a base body 2 which consists of a polyolefin base material and a desiccant. Such a base body is for example in the WO2012 / 140005 shown. The base body 2 has an outer side 3 which is covered by a vapor barrier film 6. The vapor barrier film 6 also partially surrounds the front sides 5 of the base body 2. The front sides 5 have a step 7 so that a primary seal 9 can easily be introduced between the base body 2 and the window panes (not shown) for assembly. The end faces 5 are also partially covered by an adhesive tape 8. The adhesive tape 8 is an acrylate adhesive tape. The inside 4 of the base body 2, which in an installed state is directed against the space between two window panes, is not covered, so that the drying agent contained in the base body 2 can dry the interior space between the glass panes. The primary seal 9 is a butyl adhesive. The vapor barrier film 6 is a film having a structure as shown in FIG Figure 4 described.

Figur 2 zeigt einen erfindungsgemässen Abstandhalter 1 in einer zweiten Ausführungsform. Der Abstandhalter 1 weist einen Grundkörper 2 auf, der eine Aussenseite 3, eine Innenseite 4 und zwei Stirnseiten 5 aufweist. Die Innenseite 4 ist nicht beschichtet, so dass ein Austausch von Luft zwischen dem im Grundkörper 2 enthaltenen Trocknungsmittel und dem Zwischenraum zwischen zwei Glasscheiben im eingebauten Zustand des Abstandhalters 1, stattfinden kann. Eine Dampfsperrfolie 6 umschliesst die Aussenseite 3 und die Stirnseiten 5 des Grundkörpers 2 im Wesentlichen vollständig. Die Stirnseiten 5 weisen weiterhin eine Stufe 7 auf. Unterhalb der Stufe 7, im eingebautem Zustand gegen den Innenraum zwischen zwei Scheiben gerichtet, ist ein Adhäsivband 8 angeordnet. Das Adhäsivband 8 ist ein Acrylat-Adhäsivtape. Oberhalb der Stufe 7 gegen die Aussenseite 3 ist auf der Stirnseite 5 eine Primärdichtung aus Butylkleber angeordnet. Diese Primärdichtung wird beim Montageprozess des Abstandhalters mit den Isolierglasscheiben angebracht. In Anordnung der Dampfsperrfolie 6 im Wesentlichen entlang der kompletten Stirnseiten 5 führt zu einer optimalen Diffusionssperre und verhindert zuverlässig Diffusionsspalte. Des Weiteren stellt die Dampfsperrfolie 6 einen optimalen Haftgrund für das Adhäsivband 8 und die Primärdichtung 9 dar. Figure 2 shows a spacer 1 according to the invention in a second embodiment. The spacer 1 has a base body 2 which has an outside 3, an inside 4 and two end faces 5. The inside 4 is not coated, so that an exchange of air between the desiccant contained in the base body 2 and the space between two panes of glass when the spacer 1 is installed can take place. A vapor barrier film 6 essentially completely encloses the outside 3 and the end faces 5 of the base body 2. The end faces 5 also have a step 7. An adhesive tape 8 is arranged below the step 7, in the installed state directed towards the interior space between two panes. The adhesive tape 8 is an acrylate adhesive tape. Above the step 7 against the outside 3, a primary seal is made on the end face 5 Butyl glue arranged. This primary seal is attached to the insulating glass panes during the assembly process of the spacer. Arranging the vapor barrier film 6 essentially along the entire end faces 5 leads to an optimal diffusion barrier and reliably prevents diffusion gaps. Furthermore, the vapor barrier film 6 represents an optimal primer for the adhesive tape 8 and the primary seal 9.

Figur 3 zeigt ein mehrfachverglastes Fenster mit einem Abstandhalter 1 in der ersten Ausführungsform gemäss Figur 1. Es ist selbstverständlich möglich den Abstandhalter 1 gemäss Figur 1 durch den Abstandhalter 1 der Figur 2 in der zweiten Ausführungsform zu ersetzten. Der Abstandhalter 1 weist einen Grundkörper 2 auf, und ist auf seinen Stirnseiten 8 (siehe Figur 1) mit den Fensterscheiben 15 gasdicht verbunden. Die gasdichte Verbindung wird durch ein Adhäsivband 8 unterhalb der Stufe 7 auf der Stirnseite 5 (siehe Figur 1) in Richtung der Innenseite 4 (siehe Figur 1) und insbesondere durch eine Primärdichtung 9 oberhalb der Stufe 7 erreicht. Die Primärdichtung ist ein Butylkleber, der optimal auf der Dampfsperrfolie 6 haftet. Die Dampfsperrfolie 6 umgibt den Abstandhalter 1 zumindest teilweise auf drei Seiten. Weiterhin ist der Abstandhalter durch eine Sekundärdichtung 17 gegen äussere Einflüsse geschützt. Die Dampfsperrfolie 6 weist einen Aufbau gemäss Figur 4 auf. Figure 3 shows a multiple-glazed window with a spacer 1 in the first embodiment according to FIG Figure 1 . It is of course possible to use the spacer 1 according to FIG. 1 by the spacer 1 of the Figure 2 to be replaced in the second embodiment. The spacer 1 has a base body 2 and is connected to the window panes 15 in a gas-tight manner on its end faces 8 (see FIG. 1). The gas-tight connection is made by an adhesive tape 8 below the step 7 on the face 5 (see Figure 1 ) towards the inside 4 (see Figure 1 ) and achieved in particular by a primary seal 9 above level 7. The primary seal is a butyl adhesive that adheres optimally to the vapor barrier film 6. The vapor barrier film 6 surrounds the spacer 1 at least partially on three sides. Furthermore, the spacer is protected against external influences by a secondary seal 17. The vapor barrier film 6 has a structure according to FIG.

Figur 4 zeigt den schematischen Aufbau einer Dampfsperrfolie 6. Die Dampfsperrfolie 6 weist eine äussere, d.h. von einem Abstandhalter weg weisende Schicht 10 aus SiOx auf, die auf einer Trägerschicht 12 aus Polyethylenterephtalat aufgebracht ist. Diese erste Folie ist mit einer zweiten Folie mittels eines Klebers 16 verklebt. Die zweite Folie weist eine Dichtschicht 14 aus Ethylenvinylalkohol auf, welche mit einer zweiten Schicht 13 aus SiOx beschichtet ist. Die Verklebung durch den Kleber 16 zwischen den zwei Folien liegt zwischen der zweiten Schicht 13 und der Trägerschicht 12. Auf die Dichtschicht 14 aus Ethylenvinylalkohol ist eine innere Schicht aus orientiertem Polypropylen aufgebracht. Die Polypropylenschicht ist schweissbarer, so dass die Folie insgesamt auf einen Abstandhalter 1 (siehe Figur 1 und 2) aufgeschweisst werden kann. Die Polypropylenschicht wird als Siegelschicht, also in einem flüssigen Zustand, auf der Ethylenvinylalkoholschicht aufgebracht. Eine derartige Folie führt zu einer optimalen Dichtheit und kann kostengünstig auf dem Abstandhalter 1 (siehe Figur 1 und 2) befestigt werden. Des Weiteren führt insbesondere die äussere Schicht 10 SiOx zu einem optimalen Haftgrund für eine Primärdichtung 9 (siehe Figur 1 und 2) aus Butyl, die Sekundärdichtung 17 (siehe Figur 3) und für ein Adhäsivband 8 (siehe Figur 1 und 2) aus Acrylat. Somit wird auch der Ausschuss während der Produktion verringert. Durch die Anordnung von zwei SiOx-Schichten wird die Dichtigkeit der Dampfsperrfolie 6 verbessert, da Beschichtungsfehler wie Pinholes nur mit sehr geringer Wahrscheinlichkeit direkt übereinander angeordnet sind. Figure 4 shows the schematic structure of a vapor barrier film 6. The vapor barrier film 6 has an outer layer 10 made of SiO x , ie facing away from a spacer, which is applied to a carrier layer 12 made of polyethylene terephthalate. This first film is glued to a second film by means of an adhesive 16. The second film has a sealing layer 14 made of ethylene vinyl alcohol, which with a second Layer 13 is coated from SiO x . The bonding by the adhesive 16 between the two films lies between the second layer 13 and the carrier layer 12. An inner layer made of oriented polypropylene is applied to the sealing layer 14 made of ethylene vinyl alcohol. The polypropylene layer is more weldable, so that the film as a whole lies on a spacer 1 (see Figure 1 and 2 ) can be welded on. The polypropylene layer is applied as a sealing layer, i.e. in a liquid state, to the ethylene vinyl alcohol layer. Such a film leads to an optimal tightness and can cost-effectively on the spacer 1 (see Figure 1 and 2 ) are attached. Furthermore, the outer layer 10 SiO x in particular leads to an optimal primer for a primary seal 9 (see FIG Figure 1 and 2 ) made of butyl, the secondary seal 17 (see Figure 3 ) and for an adhesive tape 8 (see Figure 1 and 2 ) made of acrylate. This also reduces rejects during production. The arrangement of two SiO x layers improves the tightness of the vapor barrier film 6, since coating defects such as pinholes are only arranged directly one above the other with a very low probability.

Claims (16)

  1. A spacer (1) for spacing glass panes of a multi-glazed window (15), comprising
    - a base body (2) having an outer side (3), an inner side (4) which can be directed towards the space between the glass panes, and two end faces (5) for receiving one glass pane each;
    - a vapour barrier film (6) applied to the base body (2), the base body (2) comprising a drying agent,
    characterised in that the vapour barrier film (6) surrounds the base body (2) on the outside (3) and at least partially on the end faces (5), an adhesive tape (8) and a primary seal (9) being arranged at least partially on the vapour barrier film (6) .
  2. A spacer (1) according to claim 1, characterised in that the end faces (5) have a step (7) and the vapour barrier film (6) substantially surrounds the spacer (1) at the end faces (5) at least up to the step (7).
  3. A spacer (1) according to claim 1, characterised in that the vapour barrier film (6) substantially completely surrounds the base body (2) at the end faces (5).
  4. A spacer (1) according to one of the preceding claims, characterized in that the primary seal (9) is a butyl seal.
  5. A spacer (1) according to one of the preceding claims, characterized in that the vapour barrier film (6) is a multilayer film and preferably has an outer layer (10) of SiOx, which can be directed towards the glass panes.
  6. A spacer (1) according to claim 5, characterised in that the vapour barrier film (6) comprises an inner layer (11), in particular of thermoplastic material, preferably oriented polypropylene, which can be welded to the base body.
  7. A spacer (1) according to any one of claims 0 to 0, characterized in that the vapour barrier film (6) comprises a carrier layer (12) of polyethylene terephthalate.
  8. A spacer (1) according to any one of claims 0 to 0, characterized in that the vapour barrier film (6) comprises a second layer (13) of SiOx.
  9. A spacer (1) according to any one of claims 0 to 0, characterized in that the vapour barrier film (6) comprises a sealing layer (14) of ethylene vinyl alcohol.
  10. A multi-glazed window with a spacer (1) according to one of the preceeding claims.
  11. A multi-glazed window according to claim 0, comprising a primary seal, in particular a butyl seal.
  12. A multi-glazed window according to claim 0 or 0 comprising a secondary seal, in particular a secondary seal made of polysulphite, polyurethane, hotmelt or silicone.
  13. A vapour barrier film (6) for a spacer (1) made by joining, in particular by adhesive bonding, a first film comprising, in particular consisting of a polyethylene terephthalate carrier layer (12) and comprising an outer layer (10) of SiOx and a second film comprising, preferably consisting of, a sealing layer (14) of ethylene vinyl alcohol and a second layer (13) of SiOx and applying an inner layer (11) of thermoplastic, preferably oriented polypropylene, to the sealing layer (14) of ethylene vinyl alcohol.
  14. A method of making a vapour barrier film (6) comprising the steps of
    - bonding a first film comprising a polyethylene terephthalate carrier layer (12) and an outer layer (10) of SiOx to a second film comprising a sealing layer (14) of ethylene vinyl alcohol and a second layer (13) of SiOx, wherein the carrier layer (12) of the first film is bonded to the second layer (13) of SiOx of the second film;
    - applying an inner layer (11) of thermoplastic material, preferably oriented polypropylene, to the sealing layer (14) of ethylene vinyl alcohol.
  15. A method of manufacturing a spacer (1) comprising the step of welding a weldable layer, in particular a thermoplastic layer, of a vapour barrier film (6), preferably according to claim 14, onto a spacer (1).
  16. A method for producing a multi-glazed window (15) by connecting, preferably gluing, a spacer (1) according to one of claims 1 to 0 to at least one insulating glass pane.
EP13774375.3A 2013-09-25 2013-09-25 Spacer for spacing glass panes of a multi-glazed window, multi-glazed window, vapour barrier film for a spacer, method for producing a vapour barrier film, and method for producing a spacer Active EP3049603B1 (en)

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PCT/EP2013/069950 WO2015043626A1 (en) 2013-09-25 2013-09-25 Spacer for spacing glass panes of a multi-glazed window, multi-glazed window, vapour barrier film for a spacer, method for producing a vapour barrier film, and method for producing a spacer

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EP3049603A1 EP3049603A1 (en) 2016-08-03
EP3049603B1 true EP3049603B1 (en) 2020-12-16

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EP3477035B1 (en) 2017-10-30 2020-07-22 Technoform Glass Insulation Holding GmbH Spacer for photovoltaic applications
EP3505716A1 (en) 2018-01-02 2019-07-03 Amcor Flexibles Denmark ApS Barrier window spacer with enhanced durability
CN115176064A (en) * 2020-01-06 2022-10-11 法国圣戈班玻璃厂 Spacer with improved adhesion
WO2021151705A1 (en) 2020-01-28 2021-08-05 Saint-Gobain Glass France Spacer comprising an interrupted adhesive layer
CN111777338A (en) * 2020-07-24 2020-10-16 温州前瞻玻璃科技有限公司 Single-glass film, double-glass film hollow glass, manufacturing method, production equipment and application

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DE19530838A1 (en) 1995-08-22 1997-02-27 Interpane Entw & Beratungsges Spacer for insertion between the panes at the periphery of insulating glazing panel
US7856791B2 (en) * 2003-06-23 2010-12-28 Ppg Industries Ohio, Inc. Plastic spacer stock, plastic spacer frame and multi-sheet unit, and method of making same
WO2012014005A1 (en) 2010-07-26 2012-02-02 Fci Rfid tag and method for manufacturing such a rfid tag
PL3023569T3 (en) 2011-04-13 2018-11-30 Alu-Pro Srl Spacer for spacing glass sheets of a multiple glazed window
ITBO20110568A1 (en) * 2011-10-05 2013-04-06 Pellini Spa SPACER ELEMENT FOR GLASS AND SIMILAR SYSTEMS
DE202011110204U1 (en) * 2011-10-14 2013-02-13 Schollglas Holding- und Geschäftsführungsgesellschaft mbH Spacer profile for an insulating glass pane

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