EP0719904B1 - Insulated glazing unit - Google Patents

Insulated glazing unit Download PDF

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Publication number
EP0719904B1
EP0719904B1 EP95120409A EP95120409A EP0719904B1 EP 0719904 B1 EP0719904 B1 EP 0719904B1 EP 95120409 A EP95120409 A EP 95120409A EP 95120409 A EP95120409 A EP 95120409A EP 0719904 B1 EP0719904 B1 EP 0719904B1
Authority
EP
European Patent Office
Prior art keywords
insulating glass
edge joint
glass unit
edge
joint filling
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.)
Expired - Lifetime
Application number
EP95120409A
Other languages
German (de)
French (fr)
Other versions
EP0719904A1 (en
Inventor
Werner Böge
Bernhard Dr. Goer
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.)
Flachglas Wernberg GmbH
Original Assignee
Flachglas Wernberg GmbH
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
Priority claimed from DE19944447049 external-priority patent/DE4447049A1/en
Priority claimed from DE19944447059 external-priority patent/DE4447059A1/en
Application filed by Flachglas Wernberg GmbH filed Critical Flachglas Wernberg GmbH
Publication of EP0719904A1 publication Critical patent/EP0719904A1/en
Application granted granted Critical
Publication of EP0719904B1 publication Critical patent/EP0719904B1/en
Anticipated expiration legal-status Critical
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Classifications

    • 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
    • E06B3/663—Elements for spacing panes
    • E06B3/66309—Section members positioned at the edges of the glazing unit
    • E06B3/66342—Section members positioned at the edges of the glazing unit characterised by their sealed connection to the panes
    • 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
    • E06B3/663—Elements for spacing panes
    • E06B3/66309—Section members positioned at the edges of the glazing unit
    • E06B3/66328—Section members positioned at the edges of the glazing unit of rubber, plastics or similar materials
    • 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
    • E06B3/663—Elements for spacing panes
    • E06B3/66309—Section members positioned at the edges of the glazing unit
    • E06B3/66314—Section members positioned at the edges of the glazing unit of tubular shape
    • E06B3/66319—Section members positioned at the edges of the glazing unit of tubular shape of rubber, plastics or similar materials

Definitions

  • the invention relates to an insulating glass unit with a Inner pane, an outer pane and a circumferential rim Edge joint with edge joint filling.
  • the insulating glass unit is especially for window and facade cladding determined in the construction sector, but can also be used as Vehicle window are used.
  • Such an insulating glass unit must be subject to considerable thermal stress for example solar radiation at high outside temperatures on the one hand and from low outside temperatures absorb deep frost on the other hand.
  • thermal stress for example solar radiation at high outside temperatures on the one hand and from low outside temperatures absorb deep frost on the other hand.
  • the insulating glass unit to which the invention relates is designed to be sound and / or heat insulating.
  • the distance between the two glass panes must be small Tolerances are set up and adhered to. That applies also for the edge joint.
  • the sealing will be high Requirements.
  • the edge joint filling serves that from a reaction adhesive or a plastic consists.
  • Insulating glass units of the construction described are one Outstanding mass product of industrial series production. You must be set up to modern automatic manufacturing equipment with high Pieces can be manufactured in the unit of time and safe and with a long service life all requirements of very complex load spectrum are sufficient.
  • an edge joint filling is provided, which also works as a spacer. it consists of Reaction adhesive strands.
  • the manufacturing process works that the reaction adhesive strands over the edge of the disc survives with a bead that is in a special Manufacturing stage removed by mechanical rework must become. This is complex in terms of production technology and can be improved with regard to long-term tightness. It is used to improve the tightness Insulating glass units also known (DE 27 52 542 C2), for the spacers use plastics that one thermal after-treatment require, which is also expensive is.
  • Another insulating glass unit (EP 0 430 889 A2) a spacer designed as a hollow profile is provided.
  • an edge joint filling made of a synthetic resin adhesive arranged.
  • the hollow profile has a moisture absorbent Substance and towards the space between the panes Holes on.
  • a water vapor and gas impermeable coating for example a metallic coating, which is expensive to apply is.
  • the invention is based on the technical problem Insulating glass unit of the construction described at the beginning create that as part of an automated industrial series production can be easily manufactured can and the complex stress spectrum like it described at the beginning, is sufficient in the long term.
  • the TPO plastics include, for example, ethylene-propylene-diene terpolymer / polypropylene (EPDM / PP), or natural rubber / polypropylene (NR / PP), or butyl rubber / polypropylene (IIR / PP) and alloys or mixtures thereof.
  • EPDM / PP ethylene-propylene-diene terpolymer / polypropylene
  • NR / PP natural rubber / polypropylene
  • IIR / PP butyl rubber / polypropylene
  • the invention is based on the knowledge that from the in the group of TPO plastics listed in feature 1.1) some for the construction of the edge fillings Insulating glass units that described above are exposed to complex stress spectrum are.
  • the individual members of the group exist on their part from a number of special variants that the Plastic chemistry pretends.
  • the one for the manufacture of insulating glass units at the entrance described construction well usable thermoplastic Plastic can be selected when choosing (in the laboratory) in accordance with selection criterion 1.2) becomes. This applies both to the embodiment according to Claim 1 as well as for the embodiment according to Claim 2.
  • the edge joint filling can be extruded and thereby as such according to the desired geometry be shaped.
  • any rework is omitted because according to Feature 1.3) an end face is formed.
  • she is in the finished insulating glass unit between the inner pane and outer pane visible and forms with at least one of these panes has a smooth, flush finish. Surprisingly, tight tolerances can be met exactly become.
  • Flush with one of the glass panes is set up when the other glass pane with a Projecting edge. Close both glass panels flush ends, the edge joint filling consisting of the TPO also closes flush with the edges of the two glass panes from.
  • the final view surface that is used when extruding or Continuous casting was achieved within the scope of the invention a double function. She has been under the influence the surface tension of the thermoplastic when extruding and when leaving the extruder die practically pore-free and improved thereby the diffusion tightness, not only serves as Visible area.
  • the teaching of the invention permits two fundamentally identical embodiments, which are specified in detail, however, according to different uses.
  • the insulating glass unit is preferably equipped with an inner pane, an outer pane and a spacer which runs around the edge to form the edge joint and is designed as a hollow profile, as well as the additional edge joint filling.
  • the edge joint filling is expediently connected not only to the glass panes, but also to the hollow profile. This can be glued in turn.
  • a particular advantage of the invention is that a gas and water vapor permeable coating, in particular a metal coating, is no longer required on the surface of the hollow profile facing the edge joint filling.
  • the selection or mixture will be made so that the TPO material has an argon permeability of> 100 ml mm / m 2 d bar at 20 ° C.
  • the inner pane and the outer pane are flush or one of the panes protrudes with a guide edge.
  • vehicle window means in particular motor vehicle windows for fast-moving motor vehicles which are exposed to high dynamic loads from air forces and when the motor vehicle doors equipped with the insulating glass are slammed shut.
  • the TPO plastics used in the invention have no polar character. Nonetheless and surprisingly, there’s a chance at one insulating glass unit according to the invention the TPO plastic from group 1.1) or mixtures thereof in accordance with the Selection criterion 1.2) for a pressure / heat connection to select. High adhesion between the edge joint filling and the glass panes are always accessible. If one such liability is sufficient depends on the selected TPO plastic, but also from the surface of the bottom Under certain circumstances, printed glass panes.
  • the TPO plastic from group 1.1) or Mixtures thereof in accordance with selection criterion 1.2) for a pressure / heat connection with intermediate connection an adhesion promoter applied to the glass panes the group "polyurethane systems, polyethylene and polypropylene systems, Ethylene vinyl acetates "or mixtures to choose from.
  • the liability of the edge joint filling for Glass should be> 5 N / mm.
  • the liability of Edge joint filling to the hollow profile is cohesive.
  • the edge joint filling can consist of two strands of different TPO plastics from group 1.1) exist, of which at least one in accordance with the Selection criterion 1.2) is selected. You can get in the way of coextrusion.
  • the invention with distance-defining hollow profile can through the hollow profile and the edge joint filling Be coextruded.
  • the insulating glass units according to the invention are sufficient for a long time the complex range of stresses described at the beginning pass the creep tests without further ado according to DIN 1286, part 1 and part 2. You but there are also the usual climate change tests, Low temperature tests, high temperature tests and pressure swing tests.

Description

Die Erfindung betrifft eine Isolierglaseinheit mit einer Innenscheibe, einer Außenscheibe und einer randseitig umlaufenden Randfuge mit Randfugenfüllung. Die Isolierglaseinheit ist insbesondere für Fenster- und Fassadenverkleidungen im Baubereich bestimmt, kann aber auch als Fahrzeugscheibe eingesetzt werden. Eine solche Isolierglaseinheit muß erhebliche thermische Beanspruchungen aus zum Beispiel Sonneneinstrahlung bei hohen Außentemperaturen einerseits und aus niedrigen Außentemperaturen bei tiefem Frost andererseits aufnehmen. Hinzu kommen dynamische Beanspruchungen aus Wind und Wetter, bei Fahrzeugscheiben auch aus Erschütterungen.The invention relates to an insulating glass unit with a Inner pane, an outer pane and a circumferential rim Edge joint with edge joint filling. The insulating glass unit is especially for window and facade cladding determined in the construction sector, but can also be used as Vehicle window are used. Such an insulating glass unit must be subject to considerable thermal stress for example solar radiation at high outside temperatures on the one hand and from low outside temperatures absorb deep frost on the other hand. There are also dynamic ones Strains from wind and weather, on vehicle windows also from vibrations.

Die Isolierglaseinheit, auf die sich die Erfindung bezieht, ist schall- und/oder wärmedämmend ausgelegt. Der Abstand zwischen den beiden Glasscheiben muß mit geringen Toleranzen eingerichtet und eingehalten werden. Das gilt auch für die Randfuge. An die Abdichtung werden hohe Anforderungen gestellt. Dazu dient die Randfugenfüllung, die aus einem Reaktionskleber oder einem Kunststoff besteht.The insulating glass unit to which the invention relates is designed to be sound and / or heat insulating. Of the The distance between the two glass panes must be small Tolerances are set up and adhered to. That applies also for the edge joint. The sealing will be high Requirements. For this, the edge joint filling serves that from a reaction adhesive or a plastic consists.

Isolierglaseinheiten des beschriebenen Aufbaus sind ein ausgesprochenes Massenprodukt der industriellen Serienfertigung. Sie müssen so eingerichtet sein, daß sie auf modernen automatischen Fertigungseinrichtungen mit hoher Stückzahl in der Zeiteinheit gefertigt werden können und sicher sowie mit langer Standzeit allen Anforderungen des sehr komplexen Beanspruchungsspektrums genügen.Insulating glass units of the construction described are one Outstanding mass product of industrial series production. You must be set up to modern automatic manufacturing equipment with high Pieces can be manufactured in the unit of time and safe and with a long service life all requirements of very complex load spectrum are sufficient.

Bei bekannten Isolierglaseinheiten (EP 0 413 283 A2, EP 0 488 072 A1) ist eine Randfugenfüllung vorgesehen, die zugleich als Abstandshalter funktioniert. Sie besteht aus Reaktionsklebersträngen. Bei der Herstellung wird so gearbeitet, daß die Reaktionskleberstränge über den Scheibenrand mit einem Wulst übersteht, der in einer besonderen Fertigungsstufe durch mechanisches Nacharbeiten entfernt werden muß. Das ist in fertigungstechnischer Hinsicht aufwendig und in bezug auf die langfristige Dichtheit verbesserungsfähig. Zur Verbesserung der Dichtheit ist es bei Isolierglaseinheiten auch bekannt (DE 27 52 542 C2), für die Abstandshalter Kunststoffe einzusetzen, die einer thermischen Nachbehandlung bedürfen, was ebenfalls aufwendig ist. Bei anderen Isolierglaseinheiten ist es bekannt (DE 19 34 712 B2), mit einem flexiblen Abstandshalter zu arbeiten, der selbst feuchtigkeitsaufnehmend ist und einen Zeolithen aufweist, der in einer Matrix aus einem synthetischen Polymer verteilt ist, weil dieses synthetische Polymer wasserdampfdurchlässig ist. Die insoweit bekannten Maßnahmen haben sich bei Isolierglaseinheiten, die dem angegebenen komplexen Beanspruchungsspektrum genügen müssen, nicht bewährt.In known insulating glass units (EP 0 413 283 A2, EP 0 488 072 A1) an edge joint filling is provided, which also works as a spacer. it consists of Reaction adhesive strands. The manufacturing process works that the reaction adhesive strands over the edge of the disc survives with a bead that is in a special Manufacturing stage removed by mechanical rework must become. This is complex in terms of production technology and can be improved with regard to long-term tightness. It is used to improve the tightness Insulating glass units also known (DE 27 52 542 C2), for the spacers use plastics that one thermal after-treatment require, which is also expensive is. It is known for other insulating glass units (DE 19 34 712 B2), with a flexible spacer work that is self-absorbent and one Zeolite, which is in a matrix of a synthetic Polymer is distributed because of this synthetic Polymer is permeable to water vapor. The so far known Measures have been taken for insulating glass units that comply with the specified complex stress spectrum must suffice, not proven.

Bei einer anderen Isolierglaseinheit (EP 0 430 889 A2) ist ein als Hohlprofil ausgeführter Abstandshalter vorgesehen. Zusatzlich ist eine Randfugenfüllung aus einem Kunstharzkleber angeordnet. Das Hohlprofil weist eine feuchtigkeitsaufnehmende Substanz und zum Scheibenzwischenraum hin Bohrungen auf. Hier ist es erforderlich, auf das Kunststoffhohlprofil zu dem Kunstharzkleber hin eine wasserdampf- und gasundurchlässige Beschichtung, zum Beispiel eine metallische Beschichtung, aufzubringen, was aufwendig ist.Another insulating glass unit (EP 0 430 889 A2) a spacer designed as a hollow profile is provided. In addition, an edge joint filling made of a synthetic resin adhesive arranged. The hollow profile has a moisture absorbent Substance and towards the space between the panes Holes on. Here it is necessary to click on the hollow plastic profile to the synthetic resin adhesive a water vapor and gas impermeable coating, for example a metallic coating, which is expensive to apply is.

Der Erfindung liegt das technische Problem zugrunde, eine Isolierglaseinheit des eingangs beschriebenen Aufbaus zu schaffen, die im Rahmen einer automatisierten industriellen Serienfertigung einfach gefertigt werden kann und dem komplexen Beanspruchungsspektrum, wie es eingangs beschrieben wurde, langfristig genügt.The invention is based on the technical problem Insulating glass unit of the construction described at the beginning create that as part of an automated industrial series production can be easily manufactured can and the complex stress spectrum like it described at the beginning, is sufficient in the long term.

Zur Lösung dieses technischen Problems ist Gegenstand der Erfindung eine Isolierglaseinheit mit einer Innenscheibe, einer Außenscheibe und einer randseitig umlaufenden Randfuge mit Randfugenfüllung, die zur Aufnahme komplexer Beanspruchungen bei Verwendung der Isolierglaseinheit im Baubereich sowie auch zur Aufnahme extremer mechanischer Beanspruchungen, z.B. in Form von Erschütterungen und Schwingungen, wie sie bei Fahrzeugen auftreten, geeignet ist, wobei die folgenden Merkmale verwirklicht sind:

  • 1.1) Die Randfugenfüllung besteht aus einem thermoplastischen Elastomer aus der Gruppe der Polyolefin-Mischungen (TPO),
  • 1.2) der TPO-Kunststoff ist aus der Gruppe gemäß 1.1) so ausgewählt bzw. gemischt, daß die Randfugenfüllung die folgenden Eigenschaften aufweist: Wasserdampfdurchlässigkeitsrate < 1 g.mm/mm2.d Zugfestigkeit > 1,0 N/mm2 50 % Zug-Modul > 0,5 N/mm2 Shore Härte > 40 A,
  • 1.3) die Randfugenfüllung ist durch Extrudieren oder Stranggießen als Strang mit einer Abschlußsichtfläche geformt,
    • wobei der Verbund der Randfugenfüllung mit der Innenscheibe und der Außenscheibe als eine adhäsive Druck/Wärme-Verbindung ausgeführt ist und wobei die Abschlußsichtfläche nacharbeitsfrei mit der Kante von zumindest einer der Glasscheiben bündig verpreßt ist. Vorzugsweise wird mit einer Shore Härte von etwa 65 A gearbeitet. Eine Druck/Wärme-Verbindung ist eine Verbindung, die unter Anwendung von Druck und Wärme hergestellt wurde. Nach bevorzugter Ausführungsform der Erfindung ist der TPO-Kunststoff gemäß Merkmal 1.2) so ausgewählt bzw. gemischt, daß die Randfugenfüllung die folgenden Eigenschaften aufweist: Wasserdampfdurchlässigkeitsrate < 1 g.mm/mm2.d Zugfestigkeit > 4 N/mm2 50 % Zug-Modul > 1 N/mm2 Shore Härte > 50 A. To solve this technical problem, the invention relates to an insulating glass unit with an inner pane, an outer pane and a peripheral edge joint with edge joint filling, which can accommodate complex stresses when using the insulating glass unit in the construction area and also to absorb extreme mechanical stresses, for example in the form of vibrations and Vibrations, as they occur in vehicles, is suitable, wherein the following features are realized:
  • 1.1) The edge joint filling consists of a thermoplastic elastomer from the group of polyolefin mixtures (TPO),
  • 1.2) The TPO plastic is selected or mixed from the group according to 1.1) so that the edge joint filling has the following properties: Water vapor transmission rate <1 g.mm/mm 2 .d tensile strenght > 1.0 N / mm 2 50% train module > 0.5 N / mm 2 Shore hardness > 40 A,
  • 1.3) the edge joint filling is formed by extrusion or continuous casting as a strand with a final visible surface,
    • wherein the bond of the edge joint filling with the inner pane and the outer pane is designed as an adhesive pressure / heat connection and wherein the final visible surface is pressed flush with the edge of at least one of the glass panes without any reworking. A Shore hardness of about 65 A is preferably used. A pressure / heat connection is a connection that was created using pressure and heat. According to a preferred embodiment of the invention, the TPO plastic is selected or mixed in accordance with feature 1.2) such that the edge joint filling has the following properties: Water vapor transmission rate <1 g.mm/mm 2 .d tensile strenght > 4 N / mm 2 50% train module > 1 N / mm 2 Shore hardness > 50 A.

    Zu den TPO-Kunststoffen zählen zum Beispiel Ethylen-Propylen-Dien-Terpolymer/Polypropylen (EPDM/PP), oder Naturkautschuk/Polypropylen (NR/PP), oder Butylkautschuk/Polypropylen (IIR/PP) und Legierungen oder Mischungen daraus.The TPO plastics include, for example, ethylene-propylene-diene terpolymer / polypropylene (EPDM / PP), or natural rubber / polypropylene (NR / PP), or butyl rubber / polypropylene (IIR / PP) and alloys or mixtures thereof.

    Die Erfindung geht von der Erkenntnis aus, daß aus den in der im Merkmal 1.1) aufgezählten Gruppe von TPO-Kunststoffen einige für den Aufbau der Randfugenfüllungen bei Isolierglaseinheiten, die dem eingangs beschriebenen komplexen Beanspruchungsspektrum ausgesetzt sind, geeignet sind. Die einzelnen Mitglieder der Gruppe bestehen ihrerseits aus einer Mehrzahl von speziellen Varianten, die die Kunststoffchemie vorgibt. Überraschenderweise kann leicht der für eine Fertigung von Isolierglaseinheiten des eingangs beschriebenen Aufbaus gut brauchbare thermoplastische Kunststoff ausgewählt werden, wenn die Auswahl (im Labor) nach Maßgabe des Auswahlkriteriums 1.2) getroffen wird. Das gilt sowohl für die Ausführungsform nach Patentanspruch 1 als auch für die Ausführungsform nach Patentanspruch 2. Die Randfugenfüllung kann extrudiert und dadurch als solche entsprechend der gewünschten Geometrie geformt werden. Jedes Nacharbeiten entfällt, weil gemäß Merkmal 1.3) eine Abschlußsichtfläche angeformt ist. Sie ist bei der fertigen Isolierglaseinheit zwischen Innenscheibe und Außenscheibe sichtbar und bildet mit zumindest einer dieser Scheiben einen glatten, bündigen Abschluß. Überraschenderweise können engen Toleranzen genau eingehalten werden. Die Bündigkeit mit einer der Glasscheiben wird eingerichtet, wenn die andere Glasscheibe mit einem Führungsrand vorsteht. Schließen beide Glasscheiben bündig ab, so schließt auch die aus dem TPO bestehende Randfugenfüllung bündig mit den Kanten der beiden Glasscheiben ab. Die Abschlußsichtfläche, die beim Extrudieren oder Stranggießen gebildet wurde, erfüllt im Rahmen der Erfindung eine Doppelfunktion. Sie hat sich unter dem Einfluß der Oberflächenspannung des thermoplastifizierten Kunststoffes beim Extrudieren sowie beim Austritt aus dem Extruderwerkzeug praktisch porenfrei gebildet und verbessert dadurch die Diffusionsdichtheit, dient also nicht nur als Sichtfläche.The invention is based on the knowledge that from the in the group of TPO plastics listed in feature 1.1) some for the construction of the edge fillings Insulating glass units that described above are exposed to complex stress spectrum are. The individual members of the group exist on their part from a number of special variants that the Plastic chemistry pretends. Surprisingly easily the one for the manufacture of insulating glass units at the entrance described construction well usable thermoplastic Plastic can be selected when choosing (in the laboratory) in accordance with selection criterion 1.2) becomes. This applies both to the embodiment according to Claim 1 as well as for the embodiment according to Claim 2. The edge joint filling can be extruded and thereby as such according to the desired geometry be shaped. Any rework is omitted because according to Feature 1.3) an end face is formed. she is in the finished insulating glass unit between the inner pane and outer pane visible and forms with at least one of these panes has a smooth, flush finish. Surprisingly, tight tolerances can be met exactly become. Flush with one of the glass panes is set up when the other glass pane with a Projecting edge. Close both glass panels flush ends, the edge joint filling consisting of the TPO also closes flush with the edges of the two glass panes from. The final view surface that is used when extruding or Continuous casting was achieved within the scope of the invention a double function. She has been under the influence the surface tension of the thermoplastic when extruding and when leaving the extruder die practically pore-free and improved thereby the diffusion tightness, not only serves as Visible area.

    Die Lehre der Erfindung erlaubt zwei grundsätzlich gleiche, im Detail jedoch nach Maßgabe unterschiedlicher Verwendungen spezifizierter Ausführungsformen. Für die Verwendung im Bauwesen ist die Isolierglaseinheit vorzugsweise ausgerüstet mit einer Innenscheibe, einer Außenscheibe und einem randseitig unter Bildung der Randfuge umlaufenden, als Hohlprofil ausgeführten Abstandshalter sowie der zusätzlichen Randfugenfüllung. Die Randfugenfüllung ist hier zweckmäßigerweise nicht nur mit den Glasscheiben, sondern auch mit dem Hohlprofil verbunden. Dieses kann seinerseits eingeklebt sein. Ein besonderer Vorteil der Erfindung besteht darin, daß auf der der Randfugenfüllung zugewandten Oberfläche des Hohlprofils eine gas- und wasserdampfdurchlässige Beschichtung, insbesondere eine Metallbeschichtung, nicht mehr erforderlich ist. Im Rahmen der Verwendung im Baubereich wird man die Auswahl bzw. Mischung so treffen, daß das TPO-Material bei 20° C eine Argondurchlässigkeit > 100 ml mm/m2 d bar aufweist. Das gilt insbesondere für Isolierglasscheiben. Für eine Verwendung bei Fahrzeugen schließen die Innenscheibe und die Außenscheibe bündig ab oder eine der Scheiben steht mit einem Führungsrand vor. Diese Maßnahme ist jedoch im Rahmen der Verwendung bei Fahrzeugen nicht beschränkend. Der Begriff "Fahrzeugscheibe" meint insbesondere Kraftfahrzeugscheiben für schnellfahrende Kraftfahrzeuge, die hohen dynamischen Beanspruchungen aus Luftkräften und beim Zuschlagen der mit der Isolierglasheit ausgerüsteten Kraftfahrzeugtüren ausgesetzt sind. Hier fehlt im allgemeinen ein selbständiges, als Abstandsprofil, zum Beispiel als Hohlprofil, ausgebildetes Bauteil. Vielmehr übernimmt die Randfugenfüllung auch die Funktion des Abstandhalters.The teaching of the invention permits two fundamentally identical embodiments, which are specified in detail, however, according to different uses. For use in construction, the insulating glass unit is preferably equipped with an inner pane, an outer pane and a spacer which runs around the edge to form the edge joint and is designed as a hollow profile, as well as the additional edge joint filling. The edge joint filling is expediently connected not only to the glass panes, but also to the hollow profile. This can be glued in turn. A particular advantage of the invention is that a gas and water vapor permeable coating, in particular a metal coating, is no longer required on the surface of the hollow profile facing the edge joint filling. In the context of use in construction, the selection or mixture will be made so that the TPO material has an argon permeability of> 100 ml mm / m 2 d bar at 20 ° C. This applies in particular to insulating glass panes. For use in vehicles, the inner pane and the outer pane are flush or one of the panes protrudes with a guide edge. However, this measure is not restrictive in the context of use in vehicles. The term “vehicle window” means in particular motor vehicle windows for fast-moving motor vehicles which are exposed to high dynamic loads from air forces and when the motor vehicle doors equipped with the insulating glass are slammed shut. There is generally no independent component designed as a spacer profile, for example as a hollow profile. Rather, the edge joint filling also takes on the function of the spacer.

    Die TPO-Kunststoffe, die erfindungsgemäß eingesetzt werden, haben keinen polaren Charakter. Nichtsdestoweniger und überraschenderweise besteht die Möglichkeit, bei einer erfindungsgemäßen Isolierglaseinheit den TPO-Kunststoff aus der Gruppe 1.1) oder Mischungen davon nach Maßgabe des Auswahlkriteriums 1.2) für eine Druck/Wärme-Verbindung auszuwählen. Eine hohe Haftung zwischen der Randfugenfüllung und den Glasscheiben ist stets erreichbar. Ob eine solche Haftung ausreicht, hängt von dem ausgewählten TPO-Kunststoff, aber auch von der Oberfläche der unter Umständen bedruckten Glasscheiben ab. Im Rahmen der Erfindung liegt es, bei der erfindungsgemäßen Isolierglaseinheit den TPO-Kunststoff aus der Gruppe 1.1) oder Mischungen davon nach Maßgabe des Auswahlkriteriums 1.2) für eine Druck/Wärme-Verbindung mit Zwischenschaltung eines auf die Glasscheiben aufgebrachten Haftvermittlers der Gruppe "Polyurethan-Systeme, Polyethylen- und Polypropylen-Systeme, Ethylen-Vinylacetate" oder Mischungen davon auszuwählen. Die Haftung der Randfugenfüllung zum Glas (Schälung. 90°) soll > 5 N/mm sein. Die Haftung der Randfugenfüllung zum Hohlprofil ist kohäsiv.The TPO plastics used in the invention have no polar character. Nonetheless and surprisingly, there’s a chance at one insulating glass unit according to the invention the TPO plastic from group 1.1) or mixtures thereof in accordance with the Selection criterion 1.2) for a pressure / heat connection to select. High adhesion between the edge joint filling and the glass panes are always accessible. If one such liability is sufficient depends on the selected TPO plastic, but also from the surface of the bottom Under certain circumstances, printed glass panes. As part of the The invention resides in the insulating glass unit according to the invention the TPO plastic from group 1.1) or Mixtures thereof in accordance with selection criterion 1.2) for a pressure / heat connection with intermediate connection an adhesion promoter applied to the glass panes the group "polyurethane systems, polyethylene and polypropylene systems, Ethylene vinyl acetates "or mixtures to choose from. The liability of the edge joint filling for Glass (peeling. 90 °) should be> 5 N / mm. The liability of Edge joint filling to the hollow profile is cohesive.

    Es besteht die Möglichkeit, in den TPO-Kunststoff der Randfugenfüllungen Trocknungsmittel einzumischen, zum Beispiel in einer Menge von bis zu 20 Gew.-%.There is a possibility in the TPO plastic Edge fillers to add desiccant to Example in an amount of up to 20 wt .-%.

    Die Randfugenfüllung kann aus zwei Strängen von unterschiedlichen TPO-Kunststoffen aus der Gruppe 1.1) bestehen, von denen zumindest einer nach Maßgabe des Auswahlkriteriums 1.2) ausgewählt ist. Sie können im Wege der Koextrusion hergestellt werden. Bei der Ausführungsform der Erfindung mit abstandsdefinierendem Hohlprofil können das Hohlprofil und die Randfugenfüllung durch Koextrusion vereinigt sein.The edge joint filling can consist of two strands of different TPO plastics from group 1.1) exist, of which at least one in accordance with the Selection criterion 1.2) is selected. You can get in the way of coextrusion. In the embodiment the invention with distance-defining hollow profile can through the hollow profile and the edge joint filling Be coextruded.

    Die erfindungsgemäßen Isolierglaseinheiten genügen langzeitig dem eingangs beschriebenen komplexen Beanspruchungsspektrum.Sie bestehen ohne weiteres die Zeitstandsprüfungen nach DIN 1286, Teil 1 und Teil 2. Sie bestehen aber auch die üblichen Klimawechselteste, Tieftemperaturteste, Hochtemperaturteste und Druckwechselteste.The insulating glass units according to the invention are sufficient for a long time the complex range of stresses described at the beginning pass the creep tests without further ado according to DIN 1286, part 1 and part 2. You but there are also the usual climate change tests, Low temperature tests, high temperature tests and pressure swing tests.

    Folgende Tests konnten erfolgreich durchgeführt werden: Klimawechseltest nach DIN 52344, Zeitstandverhalten nach DIN 1286 Teil 1, Tieftemperaturtest bis -40° C, Hochtemperaturtest bis 105° C, Druckwechseltest zwischen 1000 und 580 mbar mit 1000 Zyklen, Druckdauertest bei 580 mbar, Wasserbadwechseltest 25° C/80° C mit 5000 Zyklen, bei Kraftfahrzeugen Simulationstest in bezug auf Türzuschlagen bei tiefen und hohen Temperaturen, z. B. bei 20° C mit 40000 Zyklen.The following tests were successfully carried out: Climate change test according to DIN 52344, creep behavior according to DIN 1286 part 1, low temperature test down to -40 ° C, high temperature test up to 105 ° C, pressure change test between 1000 and 580 mbar with 1000 cycles, pressure duration test at 580 mbar, Water bath change test 25 ° C / 80 ° C with 5000 cycles, at Motor vehicle simulation test related to slamming doors at low and high temperatures, e.g. B. at 20 ° C. 40,000 cycles.

    Claims (8)

    1. An insulating glass unit having an inner pane, an outer pane and an edge joint which surrounds it at the edge and which comprises an edge joint filling, which insulating glass unit is suitable for withstanding complex stresses when used in the constructional field and which is also suitable for withstanding mechanical stresses, e.g. in the form of shocks and vibrations, wherein the following features are put into effect:
      1.1) the edge joint filling consists of a thermoplastic elastomer from the group comprising polyolefine mixtures (TPOs),
      1.2) the TPO plastics material is selected or mixed from the group as defined in 1.1) so that the edge joint filling exhibits the following properties: rate of permeability to water vapour < 1 g.mm/mm2.day tensile strength > 1.0 N/mm2 50 % tensile modulus > 0.5 N/mm2 Shore hardness > 40 A,
      1.3) the edge joint filling is formed by extrusion or by continuous casting as a strand which has a visible end face,
      wherein the bond between the edge joint filling and the inner pane and the outer pane is designed as an adhesive pressure/heat joint, and wherein the visible end face is pressed flush with the edge of at least one of the glass panes without being refinished.
    2. An insulating glass unit according to claim 1, wherein the TPO plastics material as defined by feature 1.2) is selected or mixed so that the edge joint filling exhibits the following properties: rate of permeability to water vapour < 1 g.mm/mm2.day tensile strength > 4 N/mm2 50 % tensile modulus > 1 N/mm2 Shore hardness > 50 A.
    3. An insulating glass unit according to either one of claims 1 or 2, wherein the TPO plastics material is selected from group 1.1) or from mixtures thereof in accordance with selection criterion 1.2) for a pressure/heat joint which is free from bonding agents.
    4. An insulating glass unit according to either one of claims 1 or 2, wherein the TPO plastics material is selected from group 1.1) or from mixtures thereof in accordance with selection criterion 1.2) for a pressure/heat joint, with the interposition of a bonding agent, from the group comprising polyurethane systems, polyethylene and polypropylene systems, ethylene-vinyl acetates or mixtures thereof, which is applied to the glass panes.
    5. The use of an insulating glass unit according to any one of claims 1 to 4 in the constructional field, with the proviso that the insulating glass unit is provided with an inner pane, with an outer pane and with a spacer which is designed as a hollow section and which surrounds the insulating glass unit at the edge with the formation of the edge joint, and is also provided with the additional edge joint filling.
    6. A use according to claim 5, with the proviso that the hollow section is made of polypropylene.
    7. A use according to claim 5, with the proviso that the hollow section is made of a glass fibre reinforced plastics material.
    8. The use of an insulating glass unit according to any one of claims 1 to 4, with the proviso that the edge joint filling also serves as a spacer.
    EP95120409A 1994-12-29 1995-12-22 Insulated glazing unit Expired - Lifetime EP0719904B1 (en)

    Applications Claiming Priority (4)

    Application Number Priority Date Filing Date Title
    DE4447049 1994-12-29
    DE4447059 1994-12-29
    DE19944447049 DE4447049A1 (en) 1994-12-29 1994-12-29 Glass insulating unit, e.g. for buildings or cars
    DE19944447059 DE4447059A1 (en) 1994-12-29 1994-12-29 Glass insulating unit, e.g. for buildings or cars

    Publications (2)

    Publication Number Publication Date
    EP0719904A1 EP0719904A1 (en) 1996-07-03
    EP0719904B1 true EP0719904B1 (en) 1999-07-28

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    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP95120409A Expired - Lifetime EP0719904B1 (en) 1994-12-29 1995-12-22 Insulated glazing unit

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    EP (1) EP0719904B1 (en)
    DE (1) DE59506465D1 (en)

    Families Citing this family (3)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US6235356B1 (en) 1995-12-26 2001-05-22 Asahi Glass Company Ltd. Resin composition for building materials and insulating glass
    DE19625845A1 (en) * 1996-06-27 1998-01-02 Flachglas Ag Insulating glass unit
    AU771280B2 (en) * 1999-09-01 2004-03-18 Prc-Desoto International, Inc. Insulating glass unit with structural primary sealant system

    Family Cites Families (6)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US4022728A (en) * 1975-06-10 1977-05-10 Eastman Kodak Company Hot melt pressure sensitive adhesives
    GB1589878A (en) * 1976-11-26 1981-05-20 Bfg Glassgroup Method of manufacturing a hollow panel
    GB2041949B (en) * 1979-02-07 1983-04-13 Kendall & Co Pressure sensitive adhesive composition and article
    DE3604278C1 (en) * 1986-02-12 1987-06-25 Teroson Gmbh Sealant and adhesive
    EP0430889A3 (en) * 1989-11-30 1991-12-18 Glas Troesch Ag St. Gallen Multiple insulating glazing
    FR2684131B1 (en) * 1991-11-25 1998-10-02 Standard Products Atlantic METHOD FOR MANUFACTURING A FLUSHING DOUBLE GLAZING FOR A MOTOR VEHICLE.

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    EP0719904A1 (en) 1996-07-03
    DE59506465D1 (en) 1999-09-02

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