EP0470373A1 - Multiple glass unit - Google Patents

Multiple glass unit Download PDF

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Publication number
EP0470373A1
EP0470373A1 EP91111269A EP91111269A EP0470373A1 EP 0470373 A1 EP0470373 A1 EP 0470373A1 EP 91111269 A EP91111269 A EP 91111269A EP 91111269 A EP91111269 A EP 91111269A EP 0470373 A1 EP0470373 A1 EP 0470373A1
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EP
European Patent Office
Prior art keywords
panes
spacer profile
adhesive
profile
water vapor
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.)
Granted
Application number
EP91111269A
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German (de)
French (fr)
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EP0470373B1 (en
Inventor
Paul Grether
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.)
Geilinger AG
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Geilinger AG
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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
    • 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
    • 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
    • E06B2003/6638—Section members positioned at the edges of the glazing unit with coatings
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24777—Edge feature

Definitions

  • the present invention relates to a laminated glass element with an edge bond which holds two glass panes in a spaced, parallel position and seals the space between the panes from the outside, in which a spacer profile having an outer side and lateral contact surfaces against the panes is arranged entirely between the panes, the joints between the spacer profile and the panes are sealed using a largely water vapor-tight adhesive and a metal foil is applied on the outside to the spacer profile as an additional water vapor barrier.
  • A2 0 127 739 e.g. a distance profile for a laminated glass element of the type mentioned is known. It is a rectangular profile made of glass fiber reinforced polypropylene, co-extruded with side sealing lips and sealing beads.
  • the sealing beads provide the adhesion and sealing of the panes and are made of butyl.
  • butyl is the material with the best water vapor tightness.
  • the profile is coated with a metal foil to increase its water vapor tightness.
  • the known solution is good from a thermal point of view, since the plastic material used is a poor heat conductor and no thermal bridges are formed between the panes. The thermal conductivity of the thin metal foil can be neglected.
  • the low water vapor tightness of the plastic material of the spacer profile is increased by the metal foil, weak points arise especially in the corners in which the profile is composed. Further chess points with regard to the tightness still arise in the joint areas between the metal foil and the panes. If anything, there is only very small mutual contact between the metal foil and the butyl. Because of the high creeping ability of butyl, the laminated glass element as a whole has only a low mechanical stability. This complicates the handling of the element during manufacture, transport and installation and requires that it be installed where it is installed, e.g. in a window sash, must also be mechanically stabilized. Finally, the production of the spacer profile is also quite complex.
  • an edge profile made of a thermoplastic material for a laminated glass element which surrounds the panes on the outside and thereby naturally holds together well.
  • the disks are kept at a distance by a separate spacing profile.
  • the space between the edge profile and the spacer profile is filled with a sealing compound made of polysulfide rubber.
  • a water vapor seal made of butyl rubber is only provided between the panes and the spacer profile. The water vapor permeability of the edge profile, the sealing compound mentioned and the spacing profile is not taken into account.
  • the object of the invention is to provide a laminated glass element of the type mentioned at the outset, which in combination with one another all meets the aforementioned requirements.
  • This object is achieved according to the invention by a laminated glass element with the features of the patent saying 1.
  • the composite window according to the invention is therefore initially characterized in that the metal foil is applied as a flat band around the outer edge of the spacer profile and is only joined at one point.
  • the outside of the spacer profile is formed so as to spring back in the border regions adjacent to the panes in relation to the flat metal band in such a way that circumferential chambers are formed between the spacer profile, the panes and the metal band. These chambers are used to hold the largely water vapor-tight adhesive.
  • the composite window according to the invention is further characterized in that the panes are glued to the lateral contact surfaces of the spacer profile by means of a less water-vapor-tight, less creepable adhesive which alone provides the mechanical bond between the spacer profile and the panes.
  • the spacer profile made of a poorly heat-conducting plastic and the metal strip has a thickness of only about a tenth of a millimeter and in turn made of a poorly heat-conductive material such as e.g. is selected from austenitic steel
  • a poorly heat-conductive material such as e.g. is selected from austenitic steel
  • there is a good heat-insulating edge bond as it is required for so-called heat protection glasses with a K value less than about 1.4 watts per square meter and Kelvin.
  • the edge bond is even sufficiently heat-insulating for glazing elements with a K value less than about 0.8 watts per square meter and Kelvin, e.g. those with a pane spacing greater than 50 mm and / or with films additionally stretched between the panes.
  • 1 and 2 denote two glass panes which are spaced apart from one another by a spacing profile 3.
  • the spacer profile 3 is approximately rectangular in profile and has a flat outside 3.1 and flat lateral contact surfaces 3.2 and 3.3 towards the disks 1, 2.
  • panes 1, 2 are glued onto the outside contact surfaces 3.2 and 3.3 by means of acrylate adhesive layers 4. This bond is sufficiently load-bearing and alone ensures the mechanical bond between the panes.
  • a flat band 5 made of a thin, only about 0.1 mm thick foil made of rustproof, austenitic steel is applied.
  • the width of the band 5 extends over the entire distance between the panes 1, 2. It is, of course, what cannot be seen in the selected sectional representation, surrounding the entire laminated glass element, for example rectangular when viewed from above, and preferably only at one seam put together somewhat overlapping.
  • the outside 3.1 of the spacer profile 3 is formed so as to spring back in the edge regions adjacent to the panes in relation to the flat metal strip 5 such that circumferential chambers 6 are formed between the spacer profile 3, the panes 1, 2 and the metal strip 5.
  • the chambers 6 are filled with largely water vapor-tight hot melt butyl adhesive. This does not have to contribute anything to the mechanical connection of the two disks 1, 2 with the spacer profile 3. He only has to hold the metal strip 5.
  • the tape 5 is held by the butyl adhesive in the chambers 6 only in the edge areas on the disks 1, 2. Between these edge areas, the tape lies loosely on the outside 3.1 of the spacing profile 3.
  • the butyl adhesive primarily seals the narrow gaps between the band 5 and the disks 1, 2 in a water vapor-tight manner. Because of the shape of the spacer profile 3 in the edge zones on the panes 1, 2, the large-area contact of the butyl adhesive both with the metal strip 5, with the panes 1, 2 and with the spacer profile 3 results in an excellent sealing effect.
  • the cavity in the spacing profile 3 can be filled in a conventional manner with a desiccant 7, which binds any residual moisture that may still be present in the space between the panes.
  • the cavity mentioned in the spacing profile 3 must then be connected to the space between the panes via small channels 3.4.
  • the spacer profile and the adhesive layers 4 between the spacer profile 3 and the panes 1, 2 do not need to be water vapor tight.
  • the adhesive layers 4 this enables the use of the acrylate pressure-sensitive adhesive already mentioned, which in comparison with that is practically only possible Butyl adhesive used for sealing purposes, has a much higher holding force.
  • a water-vapor-permeable, non-metallic, but poorly heat-conducting material and thus no thermal bridge between the panes 1, 2, such as a plastic material, can be used for the spacing profile.
  • the widely differing thermal expansion of plastic and glass must also be taken into account in order not to place excessive pressure on the pressure-sensitive adhesive layers due to shear.
  • a fiber-reinforced plastic material can be used to limit excessive thermal expansion.
  • the spacer profiles could also be composed of several shorter pieces made of non-fiber-reinforced plastic, each with some spacing from one another.
  • the production of a laminated glass element of the type described above, for example when viewed from above, is very simple and efficient.
  • the pressure-sensitive adhesive layers 4 which bring about the load-bearing bonding are applied as so-called assembly adhesive tapes, which are covered on the surface by a protective film, to the lateral contact surfaces 3.2 and 3.3 of four suitably cut-off spacer profiles 3, the cutting to length also being able to be carried out only after the mounting adhesive tapes have been applied.
  • the four spacer profiles 3 are then, after the protective film has been removed from the pressure-sensitive adhesive layers, initially glued to only one contact surface, on one of the two panes 1 or 2 to form a frame. It is sufficient if the spacer profiles 3 are butted in the corners. Their mutual mechanical connection in the corners is not necessary because of the sufficient holding force of the adhesive layers.
  • the protective films are also removed from the pressure-sensitive adhesive layers 4 on the other contact surface of the spacer profiles 3 and the second pane is glued to them.
  • the butyl adhesive is then introduced into the channels 6, which are still open to the outside, and the metal band 5 is then completely wrapped around the outside of the entire laminated glass element.
  • the metal strip 5 can be pulled off a roll. Because it is flat, it can easily be guided around the corners without any problems.
  • the metal strip 5 is further preferably applied in such a way that its two ends do not lie in a corner but on one long side of the laminated glass element and can be glued to one another in a slightly overlapping manner there.

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  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Joining Of Glass To Other Materials (AREA)
  • Securing Of Glass Panes Or The Like (AREA)
  • Glass Compositions (AREA)
  • Table Devices Or Equipment (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Immobilizing And Processing Of Enzymes And Microorganisms (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Laminated Bodies (AREA)
  • Inorganic Insulating Materials (AREA)
  • Ceramic Capacitors (AREA)

Abstract

In the edge bond for the panes (1, 2) of the multiple glass unit there is provided a spacer profile (3), which preferably consists of a plastic material having poor heat conducting properties. It is stuck between the panes by means of a contact adhesive (4). A strip (5) of a thin, flat metal foil is attached around the spacer profile on the outside as a water vapour barrier. In marginal areas adjacent to the panes, the outer side (3.1) of the spacer profile is designed to be set back from the flat metal strip in such a way that peripheral chambers (6) are produced. These chambers are filled with an adhesive which is impermeable to water vapour, preferably a butyl adhesive. <IMAGE>

Description

Die vorliegende Erfindung betrifft ein Verbundglaselement mit einem zwei Glasscheiben in beabstandeter, paralleler Stellung haltenden und den Scheibenzwischenraum gegen aussen abdichtenden Randverbund, in dem ein, eine Aussenseite sowie seitliche Anlageflächen gegen die Scheiben aufweisendes Abstandsprofil ganz zwischen den Scheiben angeordnet ist, die Fugen zwischen dem Abstandprofil und den Scheiben unter Verwendung eines weitgehend wasserdampfdichten Klebers abgedichtet und aussenseitig auf das Abstandsprofil als zusätzliche Wasserdampfsperre eine Metallfolie aufgebracht ist.The present invention relates to a laminated glass element with an edge bond which holds two glass panes in a spaced, parallel position and seals the space between the panes from the outside, in which a spacer profile having an outer side and lateral contact surfaces against the panes is arranged entirely between the panes, the joints between the spacer profile and the panes are sealed using a largely water vapor-tight adhesive and a metal foil is applied on the outside to the spacer profile as an additional water vapor barrier.

An den Randverbund von Verbundglaselementen werden vor allem folgende Anforderungen gestellt:

  • 1. Er muss einen ausreichend stabilen mechanischen Verbund zwischen den Scheiben sicherstellen;
  • 2. Er muss ausreichend wasserdampfdicht sein, um das Eindrigen von Wasserdampf zwischen die Scheiben und ein Beschlagen der Scheibeninnenseiten als Folge davon zu vermeiden;
  • 3. Er sollte keine Wärmebrücke zwischen den Scheiben bilden; dazu darf er zumindest nicht wesentlich weniger wärmeisolierend sein wie das Verbundglaselement auf seiner übrigen Fläche;
  • 4. Er sollte einfach und rationell herstellbar sein.
The following requirements are placed on the edge bond of laminated glass elements:
  • 1. It must ensure a sufficiently stable mechanical bond between the panes;
  • 2. It must be sufficiently water vapor tight to prevent water vapor from entering between the panes and fogging of the inside of the panes as a result;
  • 3. It should not form a thermal bridge between the panes; for this, it must at least not be significantly less heat-insulating than the laminated glass element on its remaining surface;
  • 4. It should be simple and rational to manufacture.

Stand der TechnikState of the art

Die bisher bekannt gewordenen Lösungen erfüllen lediglich jeweils einzelne der vorgenannten Anforderungen.The previously known solutions only meet individual requirements of the above.

Aus der EP, A2, 0 127 739 ist z.B. ein Abstandsprofil für ein Verbundglaselement der eingangs genannten Art bekannt. Es ist ein rechteckförmiges, zusammen mit seitlichen Dichtlippen und Dichtraupen koextrudiertes Profil aus glasfaserverstärktem Polypropylen. Die Dichtraupen erbringen die Haftung und Versiegelung der Scheiben und bestehen aus Butyl. Butyl ist nach Metall und Glas das Material mit der besten Wasserdampfdichtigkeit. Aussenseitig ist das Profil zur Erhöhung seiner Wasserdampfdichtigkeit mit einer Metallfolie beschichtet. Die bekannte Lösung ist wärmetechnisch gut, da das verwendete Plastikmaterial ein schlechter Wärmeleiter ist und zwischen den Scheiben keine Wärmebrücken gebildet werden. Die Wärmeleitfähigkeit der dünnen Metallfolie kann vernachlässigt werden. Obwohl die geringe Wasserdampfdichtigkeit des Plastikmaterials des Abstandsprofils durch die Metallfolie erhöht ist, ergeben sich Schwachstellen vor allem in den Ecken, in denen das Profil zusammengesetzt ist. Weitere Schachstellen bezüglich der Dichtigkeit ergeben sich weiter in den Stossbereichen zwischen der Metallfolie und den Scheiben. Wenn überhaupt, ergibt sich dort nur ein sehr kleinflächiger gegenseitiger Kontakt zwischen der Metallfolie und dem Butyl. Wegen der hohen Kriechfähigkeit von Butyl ergibt sich für das Verbundglaselement als Ganzes nur eine geringe mechanische Stabilität. Dies erschwert die Handhabbarkeit des Elements bei der Herstellung, beim Tranport und beim Einbau und bedingt, dass es dort, wo es zum Einbau kommt, z.B. in einem Fensterflügel, zusätzlich mechanisch stabilisiert werden muss. Schliesslich ist auch die Herstellung des Abstandprofils ziemlich aufwendig.From EP, A2, 0 127 739 e.g. a distance profile for a laminated glass element of the type mentioned is known. It is a rectangular profile made of glass fiber reinforced polypropylene, co-extruded with side sealing lips and sealing beads. The sealing beads provide the adhesion and sealing of the panes and are made of butyl. After metal and glass, butyl is the material with the best water vapor tightness. On the outside, the profile is coated with a metal foil to increase its water vapor tightness. The known solution is good from a thermal point of view, since the plastic material used is a poor heat conductor and no thermal bridges are formed between the panes. The thermal conductivity of the thin metal foil can be neglected. Although the low water vapor tightness of the plastic material of the spacer profile is increased by the metal foil, weak points arise especially in the corners in which the profile is composed. Further chess points with regard to the tightness still arise in the joint areas between the metal foil and the panes. If anything, there is only very small mutual contact between the metal foil and the butyl. Because of the high creeping ability of butyl, the laminated glass element as a whole has only a low mechanical stability. This complicates the handling of the element during manufacture, transport and installation and requires that it be installed where it is installed, e.g. in a window sash, must also be mechanically stabilized. Finally, the production of the spacer profile is also quite complex.

Aus der DE, A1, 31 35 973 ist es bekannt, Abstandsprofile aus Kunststoff mittels Butylkautschuk zwischen die Scheiben von Verbundglaselementen so einzukleben, dass die Abstandsprofile aussenseitig ganz von Butylkautschuk umschlossen sind. Die Aussenseite der Abstandsprofile ist in an die Scheiben angrenzenden Randbereichen nach innen zurückspringend ausgebildet. Diese bekannte Lösung ist herstellungstechnisch relativ einfach und auch wärmetechnisch nicht schlecht. Die Wasserdampfsperre, die praktisch nur durch den Butylkautschuk gebildet wird, ist dagegen verhältnismässig schwach. Schwach ist wegen der hohen Kriechfähigkeit des Butyls auch der mechanische Verbund. Besonders nachteilig wirkt sich bei dieser bekannten Lösung weiter die Tatsache aus, dass Butylkautschuk seine Klebrigkeit mit der Zeit nicht verliert. Das bekannte Verbundglaselement weist daher mit seiner aussenliegenden Butylkautschukschicht einen permanent klebrigen Rand auf. Es kann daher leicht festkleben, wenn es z.B. beim Transport oder bei der Montage auf dem Rand abgestellt werden muss.From DE, A1, 31 35 973 it is known to glue spacer profiles made of plastic by means of butyl rubber between the panes of laminated glass elements such that the spacer profiles are completely surrounded on the outside by butyl rubber. The outside of the spacer profiles is designed to spring back inward in the border regions adjacent to the panes. This known solution is relatively simple in terms of production technology and also not bad in terms of heat technology. The water vapor barrier, which is practically only formed by the butyl rubber, is relatively weak. The mechanical bond is also weak due to the high creeping ability of the butyl. A further disadvantage of this known solution is the fact that butyl rubber does not lose its stickiness over time. The known laminated glass element therefore has a permanently sticky edge with its outer butyl rubber layer. It can therefore stick easily if e.g. must be parked on the edge during transport or assembly.

Aus der DE, C3, 24 54 530 ist ein Kantenprofil aus einem thermoplastischem Kunststoff für ein Verbundglaselement bekannt, das die Scheiben aussen umfasst und dadurch natürlich gut zusammenhält. Auf Abstand gehalten werden die Scheiben durch ein separtes Abstandsprofil. Der Zwischenraum zwischen dem Kantenprofil und dem Abstandsprofil ist durch eine Dichtungsmasse aus Polysulfidkautschuk ausgefüllt. Lediglich zwischen den Scheiben und dem Abstandsprofil ist eine Wasserdampfdichtung aus Butylkautschuk vorgesehen. Der Wasserdampfdurchlässigkeit des Kantenprofils, der genannten Dichtungsmasse sowie des Abstandprofils ist nicht Rechnung getragen.From DE, C3, 24 54 530, an edge profile made of a thermoplastic material for a laminated glass element is known, which surrounds the panes on the outside and thereby naturally holds together well. The disks are kept at a distance by a separate spacing profile. The space between the edge profile and the spacer profile is filled with a sealing compound made of polysulfide rubber. A water vapor seal made of butyl rubber is only provided between the panes and the spacer profile. The water vapor permeability of the edge profile, the sealing compound mentioned and the spacing profile is not taken into account.

Darstellung der ErfindungPresentation of the invention

Aufgabe der Erfindung ist es, ein Verbundglaselement der eingangs genannten Art anzugeben, das die vorgenannten Anforderungen in Kombination miteinander sämtlich erfüllt. Diese Aufgabe wird erfindungsgemäss gelöst durch ein Verbundglaselement mit den Merkmalen des Patentanspruchs 1.The object of the invention is to provide a laminated glass element of the type mentioned at the outset, which in combination with one another all meets the aforementioned requirements. This object is achieved according to the invention by a laminated glass element with the features of the patent saying 1.

Das erfindungsgemässe Verbundfenster ist demnach zunächst dadurch gekennzeichnet, dass die Metallfolie als flaches Band über Stossstellen des Abstandsprofils hinweg aussenseitig auf diesem umlaufend aufgebracht und nur an einer Stelle zusammengefügt ist. Die Aussenseite des Abstandsprofils ist in an die Scheiben angrenzenden Randbereichen gegenüber dem flachen Metallband derart zurückspringend ausgebildet, dass umlaufende Kammern zwischen dem Abstandsprofil, den Scheiben und dem Metallband entstehen. Diese Kammern dienen der Aufnahme des weitgehend wasserdampfdichten Klebers. Das erfindungsgemässe Verbundfenster ist weiter dadurch gekennzeichnet, dass die Scheiben an den seitlichen Anlageflächen des Abstandsprofils mittels eines weniger wasserdampfdichten, weniger kriechfähigen, allein den mechanischen Verbund zwischen dem Abstandsprofil und den Scheiben erbringenden Klebers verklebt sind.The composite window according to the invention is therefore initially characterized in that the metal foil is applied as a flat band around the outer edge of the spacer profile and is only joined at one point. The outside of the spacer profile is formed so as to spring back in the border regions adjacent to the panes in relation to the flat metal band in such a way that circumferential chambers are formed between the spacer profile, the panes and the metal band. These chambers are used to hold the largely water vapor-tight adhesive. The composite window according to the invention is further characterized in that the panes are glued to the lateral contact surfaces of the spacer profile by means of a less water-vapor-tight, less creepable adhesive which alone provides the mechanical bond between the spacer profile and the panes.

Vorteilhafte und bevorzugte Ausgestaltungen der Erfindung sind in den abhängigen Ansprüchen gekennzeichnet. Insbesondere dann, wenn das Abstandsprofil aus einem schlecht wärmeleitenden Kunststoff und das Metallband eine Dicke von nur etwa einem zehntel Millimeter aufweist und seinerseits aus einem schlecht wärmeleitenden Material wie z.B. aus austenitischem Stahl gewählt ist, ergibt sich ein gut wärmeisolierender Randverbund, wie er für sog. Wärmeschutzgläser mit einem K-Wert kleiner als etwa 1,4 Watt pro Quadratmeter und Kelvin erforderlich ist. In dieser Ausbildung ist der Randverbund sogar ausreichend wärmeisolierend für Verbunglaselemente mit einem K-Wert kleiner als etwa 0,8 Watt pro Quadratmeter und Kelvin, z.B. solchen mit einem Scheibenabstand grösser als 50 mm und/oder mit zusätzlich zwischen den Scheiben ausgespannten Folien.Advantageous and preferred embodiments of the invention are characterized in the dependent claims. Especially when the spacer profile made of a poorly heat-conducting plastic and the metal strip has a thickness of only about a tenth of a millimeter and in turn made of a poorly heat-conductive material such as e.g. is selected from austenitic steel, there is a good heat-insulating edge bond, as it is required for so-called heat protection glasses with a K value less than about 1.4 watts per square meter and Kelvin. In this embodiment, the edge bond is even sufficiently heat-insulating for glazing elements with a K value less than about 0.8 watts per square meter and Kelvin, e.g. those with a pane spacing greater than 50 mm and / or with films additionally stretched between the panes.

Kurze Beschreibung der ZeichnungBrief description of the drawing

Nachfolgend wird ein Ausführungsbeispiel der Erfindung im Zusammenhang mit der Zeichnungen erläutert. Diese zeigt in einer einzigen Figur in geschnittener Darstellung den Randverbund eines erfindungsgemässen Verbundglaselements.An exemplary embodiment of the invention is explained below in connection with the drawings. In a single figure, this shows a sectional illustration of the edge bond of a laminated glass element according to the invention.

Weg zur Ausführung der ErfindungWay of carrying out the invention

In der Figur sind mit 1 und 2 zwei von einem Abstandsprofil 3 parallel zueinander auf Abstand gehaltene Glasscheiben bezeichnet. Das Abstandsprofil 3 ist im Profil etwa rechteckförmig und weist eine flache Aussenseite 3.1 sowie zu den Scheiben 1, 2 hin flache seitliche Anlageflächen 3.2 bzw. 3.3 auf.In the figure, 1 and 2 denote two glass panes which are spaced apart from one another by a spacing profile 3. The spacer profile 3 is approximately rectangular in profile and has a flat outside 3.1 and flat lateral contact surfaces 3.2 and 3.3 towards the disks 1, 2.

Mittels Acrylat-Haftklebeschichten 4 sind die Scheiben 1, 2 aussen auf die seitlichen Anlageflächen 3.2 und 3.3 aufgeklebt. Diese Verklebung ist ausreichend tragend und sichert schon allein den mechanischen Verbund der Scheiben.The panes 1, 2 are glued onto the outside contact surfaces 3.2 and 3.3 by means of acrylate adhesive layers 4. This bond is sufficiently load-bearing and alone ensures the mechanical bond between the panes.

Auf das Abstandsprofil 3 ist aussenseitig auf seiner Aussenseite 3.1 als Wasserdampfsperre ein flaches Band 5 aus einer dünnen, nur etwa o,1 mm dicken Folie aus nichtrostendem, austenitischem Stahl aufgebracht. Das Band 5 erstreckt sich bezüglich seiner Breite über den gesamten Abstand zwischen den Scheiben 1, 2. Es ist, was in der gewählten geschnittenen Darstellung natürlich nicht zu erkennen ist, um das gesamte, in Aufsicht beispielsweise rechteckige Verbundglaselement umlaufend und nur an einer Nahtstelle vorzugsweise etwas überlappend zusammengefügt.On the outside of the spacer profile 3 on its outside 3.1 as a water vapor barrier, a flat band 5 made of a thin, only about 0.1 mm thick foil made of rustproof, austenitic steel is applied. The width of the band 5 extends over the entire distance between the panes 1, 2. It is, of course, what cannot be seen in the selected sectional representation, surrounding the entire laminated glass element, for example rectangular when viewed from above, and preferably only at one seam put together somewhat overlapping.

Die Aussenseite 3.1 des Abstandsprofils 3 ist in an die Scheiben angrenzenden Randbereichen gegenüber dem flachen Metallband 5 derart zurückspringend ausgebildet, dass umlaufende Kammern 6 zwischen dem Abstandsprofil 3, den Scheiben 1, 2 und dem Metallband 5 entstehen. Die Kammern 6 sind mit weitgehend wasserdampfdichtem Hot-Melt-Butylkleber ausgefüllt. Dieser muss nichts zum mechanischen Verbund der beiden Scheiben 1, 2 mit dem Abstandprofil 3 beitragen. Er muss lediglich das Metallband 5 halten.The outside 3.1 of the spacer profile 3 is formed so as to spring back in the edge regions adjacent to the panes in relation to the flat metal strip 5 such that circumferential chambers 6 are formed between the spacer profile 3, the panes 1, 2 and the metal strip 5. The chambers 6 are filled with largely water vapor-tight hot melt butyl adhesive. This does not have to contribute anything to the mechanical connection of the two disks 1, 2 with the spacer profile 3. He only has to hold the metal strip 5.

Das Band 5 wird durch den Butylkleber in den Kammern 6 lediglich in den Randbereichen an den Scheiben 1, 2 gehalten. Zwischen diesen Randbereichen liegt das Band lose auf der Aussenseite 3.1 des Abstandsprofils 3 an.The tape 5 is held by the butyl adhesive in the chambers 6 only in the edge areas on the disks 1, 2. Between these edge areas, the tape lies loosely on the outside 3.1 of the spacing profile 3.

Durch den Butylkleber werden jedoch vor allem die schmalen Spalte zwischen dem Band 5 und den Scheiben 1, 2 wasserdampfdicht abgedichtet. Durch den sich durch die Formgebung des Abstandprofils 3 in den Randzonen an den Scheiben 1, 2 ergebenden grossflächigen Kontakt des Butylklebers sowohl zum Metallband 5, zu den Scheiben 1, 2 und zum Abstandsprofil 3 ergibt sich eine ausgezeichnete Dichtwirkung.The butyl adhesive, however, primarily seals the narrow gaps between the band 5 and the disks 1, 2 in a water vapor-tight manner. Because of the shape of the spacer profile 3 in the edge zones on the panes 1, 2, the large-area contact of the butyl adhesive both with the metal strip 5, with the panes 1, 2 and with the spacer profile 3 results in an excellent sealing effect.

Wie in der Figur dargestellt, kann der Hohlraum im Abstandsprofil 3 in an sich üblicher Weise noch mit einem Trockenmittel 7 aufgefüllt werden, das eventuell im Scheibenzwischenraum noch vorhandene Restfeuchtigkeit bindet. Der genannte Hohlraum im Abstandsprofil 3 muss dann über kleine Kanäle 3.4 mit dem Scheibenzwischenraum in Verbindung stehen.As shown in the figure, the cavity in the spacing profile 3 can be filled in a conventional manner with a desiccant 7, which binds any residual moisture that may still be present in the space between the panes. The cavity mentioned in the spacing profile 3 must then be connected to the space between the panes via small channels 3.4.

Da die Wasserdampfdichtigkeit durch das Metallband 5 und die beschriebene Art seiner Verklebung bereits ausreichend sichergestellt ist, brauchen das Abstandsprofil sowie die Klebeschichten 4 zwischen dem Abstandsprofil 3 und den Scheiben 1, 2 nicht wasserdampfdicht zu sein. Hinsichtlich der Klebeschichten 4 ermöglicht dies die Verwendung des bereits erwähnten Acrylat-Haftklebers, der im Vergleich mit dem praktisch nur zu Dichtzwecken verwendeten Butylkleber, eine weitaus höhere Haltekraft aufweist. Für das Abstandsprofil kann aus dem gleichen Grund ein wasserdampfdurchlässiges, nichtmetallisches, jedoch schlecht wärmeleitendes und somit keine Wärmebrücke zwischen den Scheiben 1, 2 bildendes Material, wie z.B. ein Kunsstoffmaterial, verwendet werden. Dabei ist allerdings zusätzlich der stark unterschiedlichen Wärmedehnung von Kunsstoff und Glas Rechnung zu tragen, um die Haftklebeschichten auf Scherung nicht zu stark zu belasten. Zur Begrenzung zu starker Wärmedehnungen kann z.B. ein faserverstärktes Kunsstoffmaterial verwendet werden. Alternativ könnten die Abstandsprofile auch aus mehreren kürzeren Stücken aus nicht faserverstärktem Kunststoff mit jeweils etwas Abstand voneinander zusammengesetzt werden.Since the water vapor tightness is already sufficiently ensured by the metal strip 5 and the way in which it is glued, the spacer profile and the adhesive layers 4 between the spacer profile 3 and the panes 1, 2 do not need to be water vapor tight. With regard to the adhesive layers 4, this enables the use of the acrylate pressure-sensitive adhesive already mentioned, which in comparison with that is practically only possible Butyl adhesive used for sealing purposes, has a much higher holding force. For the same reason, a water-vapor-permeable, non-metallic, but poorly heat-conducting material and thus no thermal bridge between the panes 1, 2, such as a plastic material, can be used for the spacing profile. However, the widely differing thermal expansion of plastic and glass must also be taken into account in order not to place excessive pressure on the pressure-sensitive adhesive layers due to shear. For example, a fiber-reinforced plastic material can be used to limit excessive thermal expansion. Alternatively, the spacer profiles could also be composed of several shorter pieces made of non-fiber-reinforced plastic, each with some spacing from one another.

Die Herstellung eines in Aufsicht beispielsweise rechteckigen Verbundglaselements der vorbeschriebenen Art ist sehr einfach und rationell. Die die tragende Verklebung bewirkenden Haftklebeschichten 4 werden als oberflächlich von einer Schutzfolie abgedeckte sog. Montageklebebänder auf die seitlichen Anlageflächen 3.2 und 3.3 von vier geeignet abgelängten Abstandprofilen 3 aufgebracht, wobei das Ablängen auch erst nach dem Aufbringen der Montageklebebänder ausgeführt werden könnte. Die vier Abstandprofile 3 werden dann, nach dem Entfernen der Schutzfolie von den Haftklebeschichten auf zunächst nur einer Anlagefläche, auf eine der beiden Scheiben 1 oder 2 rahmenbildend aufgeklebt. Dabei genügt es, wenn die Abstandprofile 3 in den Ecken auf Stoss sind. Ihre gegenseitige mechanische Verbindung in den Ecken ist wegen der ausreichenden Haltekraft der Haftklebeschichten nicht erforderlich. Als nächstens werden die Schutzfolien auch von den Haftklebeschichten 4 auch auf der anderen Anlagefläche der Abstandsprofile 3 entfernt und die zweite Scheibe daran angeklebt.The production of a laminated glass element of the type described above, for example when viewed from above, is very simple and efficient. The pressure-sensitive adhesive layers 4 which bring about the load-bearing bonding are applied as so-called assembly adhesive tapes, which are covered on the surface by a protective film, to the lateral contact surfaces 3.2 and 3.3 of four suitably cut-off spacer profiles 3, the cutting to length also being able to be carried out only after the mounting adhesive tapes have been applied. The four spacer profiles 3 are then, after the protective film has been removed from the pressure-sensitive adhesive layers, initially glued to only one contact surface, on one of the two panes 1 or 2 to form a frame. It is sufficient if the spacer profiles 3 are butted in the corners. Their mutual mechanical connection in the corners is not necessary because of the sufficient holding force of the adhesive layers. Next, the protective films are also removed from the pressure-sensitive adhesive layers 4 on the other contact surface of the spacer profiles 3 and the second pane is glued to them.

Die Haftklebeverbindungen 4 entfalten bereits unmittelbar mit dem Zusammenfügen der Teile in vorteilhafter Weise ihre volle Haltekraft. Dadurch entstehen keine nachteiligen Zeitverzögerungen bei der Herstellung wie bei anderen Klebern, bei denen z.B. ein Aushärten oder dergl. abgewartet werden mussThe PSA connections 4 already unfold their full holding force in an advantageous manner directly when the parts are joined together. As a result, there are no disadvantageous time delays in production as with other adhesives, in which e.g. curing or the like must be waited for

In die nach aussen noch offenen Kanäle 6 wird nun der Butylkleber eingebracht und anschliessend das Metallband 5 aussen um das ganze Verbundglaselement vollständig herumgeschlungen. Das Metallband 5 kann dabei von einer Rolle abgezogen werden. Dadurch, dass es flach ist, kann es ohne Probleme einfach um die Ecken herumgeführt werden. Das Metallband 5 wird weiter vorzugsweise so aufgebracht, dass seine beiden Enden nicht in einer Ecke sondern auf einer Längsseite des Verbundglaselements zu liegen kommen und dort etwas überlappend einfach miteinander verklebt werden können.The butyl adhesive is then introduced into the channels 6, which are still open to the outside, and the metal band 5 is then completely wrapped around the outside of the entire laminated glass element. The metal strip 5 can be pulled off a roll. Because it is flat, it can easily be guided around the corners without any problems. The metal strip 5 is further preferably applied in such a way that its two ends do not lie in a corner but on one long side of the laminated glass element and can be glued to one another in a slightly overlapping manner there.

Claims (5)

1. Verbundglaselement mit einem zwei Glasscheiben (1, 2) in beabstandeter, paralleler Stellung haltenden und den Scheibenzwischenraum gegen aussen abdichtenden Randverbund, in dem ein, eine Aussenseite (3.1) sowie seitliche Anlageflächen (3.2, 3.2) gegen die Scheiben aufweisendes Abstandsprofil (3) ganz zwischen den Scheiben angeordnet ist, die Fugen zwischen dem Abstandprofil und den Scheiben unter Verwendung eines weitgehend wasserdampfdichten Klebers abgedichtet und aussenseitig auf das Abstandsprofil als zusätzliche Wasserdampfsperre eine Metallfolie (5) aufgebracht ist, dadurch gekennzeichnet, dass die Metallfolie als flaches Band über Stossstellen des Abstandsprofils hinweg aussenseitig auf diesem umlaufend aufgebracht ist, dass die Aussenseite des Abstandsprofils in an die Scheiben angrenzenden Randbereichen gegenüber dem flachen Metallband derart zurückspringend ausgebildet ist, dass umlaufende Kammern (6) zwischen dem Abstandsprofil, den Scheiben und dem Metallband entstehen, dass diese Kammern mit dem weitgehend wasserdampfdichten Kleber ausgefüllt sind und dass die Scheiben an den seitlichen Anlageflächen des Abstandsprofils mittels eines weniger wasserdampfdichten, weniger kriechfähigen, allein den mechanischen Verbund zwischen dem Abstandsprofil und den Scheiben erbringenden Klebers (4) verklebt sind.1. Laminated glass element with a two glass panes (1, 2) in a spaced, parallel position and sealing the space between the panes against the outside, in which a, an outer side (3.1) and lateral contact surfaces (3.2, 3.2) against the panes spacing profile (3 ) is arranged entirely between the panes, the joints between the spacer profile and the panes are sealed using a largely water vapor-tight adhesive and a metal foil (5) is applied to the spacer profile as an additional water vapor barrier, characterized in that the metal foil as a flat band over joints the circumferential profile of the spacer profile is applied on the outside such that the outside of the spacer profile is formed so as to spring back in the edge regions adjacent to the panes in relation to the flat metal band in such a way that circumferential chambers (6) arise between the spacer profile, the panes and the metal band hen that these chambers are filled with the largely water vapor-tight adhesive and that the panes are glued to the lateral contact surfaces of the spacer profile by means of a less water vapor-tight, less creepable adhesive that alone provides the mechanical bond between the spacer profile and the panes. 2. Verbundglaselement nach Anspruch 1, dadurch gekennzeichnet, dass der weitgehend wasserdampfdichte Kleber ein sogenannter Hot-Melt-Butylkleber ist.2. Laminated glass element according to claim 1, characterized in that the largely water vapor-tight adhesive is a so-called hot-melt butyl adhesive. 3. Verbundglaselement nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der den mechanischen Verbund zwischen dem Abstandsprofil und den Scheiben sicherstellende Kleber ein Acrylat-Haftkleber ist.3. Laminated glass element according to claim 1 or 2, characterized in that the adhesive ensuring the mechanical bond between the spacer profile and the panes is an acrylate pressure sensitive adhesive. 4. Verbundglaselement nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass das Abstandsprofil aus Kunststoff besteht.4. Laminated glass element according to one of claims 1 to 3, characterized in that the spacer profile consists of plastic. 5. Verbundglaselement nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass das Metallband eine Dicke von etwa 0,1 mm aufweist und aus austenitischem Stahl besteht.5. Laminated glass element according to one of claims 1 to 4, characterized in that the metal strip has a thickness of about 0.1 mm and consists of austenitic steel.
EP91111269A 1990-08-10 1991-07-06 Multiple glass unit Expired - Lifetime EP0470373B1 (en)

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CH2611/90A CH681102A5 (en) 1990-08-10 1990-08-10
CH2611/90 1990-08-10

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EP0470373B1 EP0470373B1 (en) 1993-07-28

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US (1) US5260112A (en)
EP (1) EP0470373B1 (en)
JP (1) JPH04243942A (en)
AT (1) ATE92151T1 (en)
CA (1) CA2029148C (en)
CH (1) CH681102A5 (en)
DE (1) DE59100226D1 (en)
DK (1) DK0470373T3 (en)
ES (1) ES2042326T3 (en)
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NO (1) NO912659L (en)

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DE19543148A1 (en) * 1995-11-18 1997-05-22 Fewa Glastechnik Gmbh Profile for fire-protective glazing sheets containing fire resistant-medium
DE19930831A1 (en) * 1999-01-18 2000-07-20 Geze Gmbh Frameless glass wing as a movably mounted or fixed wing of a window, door or facade or glass wall
AT12952U1 (en) * 2011-08-22 2013-02-15 Inova Lisec Technologiezentrum Insulating glass with spacer
WO2017036834A1 (en) * 2015-09-04 2017-03-09 Agc Glass Europe Highly insulated floor-to-ceiling window
PL423221A1 (en) * 2017-10-20 2019-04-23 Es System K Spolka Z Ograniczona Odpowiedzialnoscia Method for obtaining an insulating glass unit, the insulating glass unit and the pressure device for insulating glass units
DE102018105479A1 (en) * 2018-03-09 2019-09-12 sedak GmbH & Co. KG Building facade element formed as insulating glass unit
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EP0597727A2 (en) * 1992-11-13 1994-05-18 UKae Limited Insulated glass units
EP0597727A3 (en) * 1992-11-13 1994-12-28 Ukae Limited Insulated glass units.
DE19543148A1 (en) * 1995-11-18 1997-05-22 Fewa Glastechnik Gmbh Profile for fire-protective glazing sheets containing fire resistant-medium
DE19543148C2 (en) * 1995-11-18 2000-03-23 Fewa Glastechnik Gmbh Fire protection glazing
DE19930831A1 (en) * 1999-01-18 2000-07-20 Geze Gmbh Frameless glass wing as a movably mounted or fixed wing of a window, door or facade or glass wall
AT12952U1 (en) * 2011-08-22 2013-02-15 Inova Lisec Technologiezentrum Insulating glass with spacer
WO2017036834A1 (en) * 2015-09-04 2017-03-09 Agc Glass Europe Highly insulated floor-to-ceiling window
JP2018534449A (en) * 2015-09-04 2018-11-22 エージーシー グラス ユーロップＡｇｃ Ｇｌａｓｓ Ｅｕｒｏｐｅ Highly insulated floor-to-ceiling windows
US10221565B2 (en) 2015-09-04 2019-03-05 Agc Glass Europe Highly insulated floor-to-ceiling window
PL423221A1 (en) * 2017-10-20 2019-04-23 Es System K Spolka Z Ograniczona Odpowiedzialnoscia Method for obtaining an insulating glass unit, the insulating glass unit and the pressure device for insulating glass units
DE102018105479A1 (en) * 2018-03-09 2019-09-12 sedak GmbH & Co. KG Building facade element formed as insulating glass unit
WO2019170869A1 (en) 2018-03-09 2019-09-12 sedak GmbH & Co. KG Building facade element embodied as an insulating glass unit
US11486191B2 (en) 2018-03-09 2022-11-01 sedak GmbH & Co. KG Building facade element embodied as an insulating glass unit
WO2021259676A1 (en) 2020-06-22 2021-12-30 Saint-Gobain Glass France Insulating glazing comprising a spacer having a reinforcing profile

Also Published As

Publication number Publication date
FI913351A0 (en) 1991-07-10
NO912659L (en) 1992-02-11
CA2029148C (en) 1996-02-06
FI913351A (en) 1992-02-11
US5260112A (en) 1993-11-09
EP0470373B1 (en) 1993-07-28
ATE92151T1 (en) 1993-08-15
ES2042326T3 (en) 1993-12-01
JPH04243942A (en) 1992-09-01
DK0470373T3 (en) 1993-11-29
NO912659D0 (en) 1991-07-08
CH681102A5 (en) 1993-01-15
CA2029148A1 (en) 1992-02-11
DE59100226D1 (en) 1993-09-02

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