EP3781773B1 - Espaceur pourvu d'éléments de renforcement - Google Patents

Espaceur pourvu d'éléments de renforcement Download PDF

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Publication number
EP3781773B1
EP3781773B1 EP19711364.0A EP19711364A EP3781773B1 EP 3781773 B1 EP3781773 B1 EP 3781773B1 EP 19711364 A EP19711364 A EP 19711364A EP 3781773 B1 EP3781773 B1 EP 3781773B1
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EP
European Patent Office
Prior art keywords
wall
spacer
pane
glazing
hollow profile
Prior art date
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Application number
EP19711364.0A
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German (de)
English (en)
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EP3781773A1 (fr
Inventor
Hans-Werner Kuster
Walter Schreiber
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Saint Gobain Glass France SAS
Compagnie de Saint Gobain SA
Original Assignee
Saint Gobain Glass France SAS
Compagnie de Saint Gobain SA
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Application filed by Saint Gobain Glass France SAS, Compagnie de Saint Gobain SA filed Critical Saint Gobain Glass France SAS
Priority to PL19711364T priority Critical patent/PL3781773T3/pl
Publication of EP3781773A1 publication Critical patent/EP3781773A1/fr
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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
    • E06B3/66314—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

Definitions

  • the invention relates to a spacer for insulating glass units, an insulating glass unit, a method for producing an insulating glass unit and its use.
  • Insulating glazing usually contains at least two panes made of glass or polymeric materials. The discs are separated from one another by a gas or vacuum space defined by the spacer.
  • the thermal insulation capacity of insulating glass is significantly higher than that of single glass and can be further increased and improved in triple glazing or with special coatings. For example, coatings containing silver enable reduced transmission of infrared radiation and thus reduce the cooling of a building in winter.
  • the other components of insulating glazing are also of great importance.
  • the seal and above all the spacer have a major impact on the quality of the insulating glazing.
  • the contact points between the spacer and the glass pane are very susceptible to temperature and climate fluctuations.
  • the connection between pane and spacer is created by an adhesive bond made of organic polymer, for example polyisobutylene.
  • the glass itself has a particular effect on the bonded joint.
  • the glass and the spacers have different coefficients of linear thermal expansion, which means that they expand at different rates when the temperature changes. Due to temperature changes, for example due to solar radiation, the glass expands or contracts again when it cools down.
  • the spacer does not follow these movements to the same extent.
  • This mechanical movement therefore stretches or compresses the adhesive bond, which can only compensate for these movements to a limited extent through its own elasticity.
  • the mechanical stress described can mean that the adhesive connection detaches over part or all of the surface. This detachment of the adhesive bond can then allow air moisture to penetrate inside the insulating glazing.
  • These climatic loads can lead to fogging in the area of the panes and a reduction in the insulating effect. It is thus desirable to match the linear expansion coefficients of glass and spacers as much as possible.
  • the thermal insulation properties of insulating glazing are significantly influenced by the thermal conductivity in the area of the edge seal, in particular the spacer.
  • the high thermal conductivity of the metal causes a thermal bridge to form at the edge of the glass.
  • this thermal bridge leads to heat loss in the edge area of the insulating glazing and, on the other hand, to the formation of condensate on the inner pane in the area of the spacer in the event of high humidity and low outside temperatures.
  • thermally optimized, so-called "warm edge” systems are increasingly being used, in which the spacers are made of materials with lower thermal conductivity, in particular plastics. From the aspect of thermal conductivity, polymer spacers are preferable to metal spacers.
  • polymeric spacers have several disadvantages. On the one hand, the tightness of the polymeric spacers against moisture and gas loss is not sufficient. There are various solutions here, in particular applying a barrier film to the outside of the spacer (see for example WO2013/104507 A1 and WO2012/055553 A1 ).
  • the linear expansion coefficients of plastics are much larger than those of glass.
  • glass fibers can be added to adjust the coefficient of linear expansion (see, for example EP0852280 A1 ).
  • an increased proportion of glass fibers impairs the thermally conductive properties of the spacer, so that precise optimization must be carried out here.
  • Glass fibers and similar fillers also improve the longitudinal rigidity of the spacer.
  • Polymeric glass fiber reinforced spacers are so brittle that, unlike metal spacers, they cannot be bent when cold.
  • To produce a spacer frame for an insulating glass unit several pieces of spacer must be connected via connectors and glued or welded. Each connection point must be carefully sealed. Therefore, manufacturing a spacer frame by bending is advantageous.
  • bending without additional heating is desirable for easy machinability.
  • One approach to increasing flexibility is to integrate a metallic strips in the polymer base body (e.g. in the WO2015/043848 A1 and the DE19807454 A1 described).
  • the integration of a metallic strip into the polymer base body is very complex during production.
  • Polymer spacers without additional fillers such as glass fibers are flexible and not sufficiently rigid.
  • longitudinal stiffness refers to longitudinal deflection
  • An improvement in longitudinal rigidity can be achieved by integrating metallic strips (see previous point) or applying metallic elements externally to the body (see for example EP1055046B2 and EP3241972 A1 ).
  • the application of a metallic strip impairs the thermally conductive properties of the spacer, since the metallic elements have increased thermal conductivity.
  • a particular difficulty when applying individual metallic elements externally is the perfect sealing of the edge seal against the ingress of moisture.
  • the spacer according to the invention for insulating glass units comprises at least one polymeric hollow profile with a first side wall, one arranged parallel thereto second sidewall, a glazing interior wall, an exterior wall, and a cavity.
  • the cavity is enclosed by the side walls, the glazing cavity wall and the outer wall.
  • the glazing interior wall is arranged essentially perpendicular to the side walls and connects the first side wall to the second side wall.
  • the side walls are the walls of the hollow profile to which the outer panes of the insulating glass unit are attached.
  • the interior glazing wall is the wall of the hollow profile that faces the interior cavity after installation in the finished insulating glass unit.
  • the outer wall is arranged substantially parallel to the glazing cavity wall and connects the first side wall to the second side wall. After installation in the finished insulating glass unit, the outer wall points to the outer space between the panes.
  • the spacer also includes two metallic reinforcement elements that are attached to the outside of the polymeric hollow profile.
  • the metallic reinforcing elements improve the longitudinal rigidity of the spacer and bring the coefficient of linear expansion of the spacer closer to that of the glass in an insulating glass unit.
  • the first reinforcement element encloses the corner between the first side wall and the outer wall and is fitted there in an indentation provided for this purpose in the wall of the polymeric hollow profile.
  • the second reinforcement element encloses the corner between the second side wall and the outer wall and is fitted there in an indentation provided for this purpose in the wall of the polymeric hollow profile.
  • the reinforcement elements are fitted in the indentations in such a way that they are flush with the side walls and the outer wall.
  • the metallic reinforcement elements are flush with the side walls, there is a flat surface for arranging the glass panes in the insulating glass unit. This leads to an improved tightness in comparison to spacers with reinforcement elements which are applied externally to a flat profile and result in an edge, since this edge then has to be compensated for by the primary sealant in the insulating glass unit. Thanks to the flush arrangement in the indentations, a flat bonding surface is obtained on the outside of the spacer, on which a gas-tight and moisture-tight barrier film can be applied.
  • the reinforcement in the form of two metal reinforcement elements, the heat insulating properties of the spacer are improved compared to one with a continuous metal foil/strip. Since the metallic reinforcement elements are not connected to each other, it is prevented that a continuous heat-conducting metallic connection from the first side wall to the second side wall is created, a so-called thermal bridge.
  • the gas-tight and moisture-tight barrier film is applied to the first side wall, the first metallic reinforcement element, the outer wall, the second metallic reinforcement element and to the second side wall of the polymeric hollow body.
  • the gas and moisture-tight barrier film seals the inner space between the panes against the ingress of moisture and prevents the loss of a gas contained in the inner space between the panes.
  • the barrier film is applied in such a way that the areas of the two side walls bordering on the interior glazing wall are free of barrier film. A particularly good sealing of the spacer is achieved by the attachment to the entire outer wall and the reinforcement elements up to the side walls.
  • the advantage of the areas on the side walls that remain free of barrier film is, on the one hand, an improvement in the visual appearance when installed.
  • the primary sealant can be applied to extend over the barrier film and over a length of the polymeric sidewall. In this way, a uniform sealing level is achieved and a particularly good seal is achieved.
  • the spacer according to the invention thus offers an improved solution compared to the prior art.
  • the cavity of the spacer according to the invention results in a weight reduction compared to a solidly formed spacer and is available for accommodating other components, such as a desiccant.
  • the first side wall and the second side wall represent the sides of the spacer on which the outer panes of an insulating glass unit are installed when the spacer is installed.
  • the first side wall and the second side wall are parallel to each other.
  • the outer wall of the hollow profile is the wall opposite the glazing interior wall, which points away from the interior of the insulating glass unit (inner space between the panes) in the direction of the outer space between the panes.
  • the outer wall preferably runs essentially perpendicular to the side walls.
  • a flat outer wall that is perpendicular to the side walls (parallel to the glazing interior wall) throughout its course has the advantage that the sealing surface between the spacer and the side walls is maximized and simpler shaping facilitates the production process.
  • the sections of the outer wall closest to the side walls are inclined at an angle ⁇ (alpha) of 30° to 60° to the outer wall in the direction of the side walls.
  • ⁇ (alpha) improves the stability of the polymer hollow profile.
  • the stability of the spacer is increased, since the metallic reinforcement elements are particularly stable thanks to the double-angled design. It is thus possible to reduce the wall thickness d of the polymeric hollow profile compared to a shape without angled sections. A reduction in wall thickness in turn leads to improved bendability and lower material costs.
  • the sections closest to the side walls are preferably inclined at an angle ⁇ (alpha) of 45°. In this case, the stability of the spacer is further improved.
  • the two metallic reinforcement elements are glued onto the polymeric hollow profile.
  • This embodiment is particularly easy to produce. A separate production of hollow profile and reinforcement element is possible.
  • the difference in the linear expansion coefficients of the metallic reinforcement elements and the polymeric hollow profile (metal and polymer) means that the connection between the reinforcement element and polymeric hollow profile is exposed to stresses when there are temperature differences.
  • an adhesive layer By applying an adhesive layer, some of the stresses can be absorbed via the elasticity of the adhesive layer.
  • Thermoplastic adhesives but also reactive adhesives, such as multi-component adhesives, can be used as adhesives.
  • a thermoplastic adhesive is preferred Adhesive, particularly preferably a thermoplastic polyurethane used. This has proven to be particularly suitable in tests.
  • the hollow profile contains no glass fibers.
  • the presence of glass fibers degrades the heat insulating properties of the spacer.
  • spacers with glass fibers in the hollow profile are more difficult to bend when cold because they are more brittle.
  • the presence of glass fibers is surprisingly not necessary for the adaptation of the coefficient of linear expansion of the spacer to that of the glass.
  • a linear expansion coefficient of 27 ⁇ 10 -6 1/K was measured for a spacer according to the invention with metallic reinforcement elements without glass fibers in the polymeric hollow body. This means that a piece of spacer 1 km long will expand by 27 mm for a temperature increase of 1 K.
  • the polymeric hollow profile has an essentially uniform wall thickness d. This leads to an improvement in the bendability compared to hollow profiles with areas of different wall thickness. It has been shown that with a uniform wall thickness, the spacer breaks less during cold bending than with different wall thicknesses.
  • the wall thickness d is from 0.3 mm to 0.8 mm. In this area, the spacer is stable and at the same time flexible enough to be cold bendable.
  • the wall thickness is particularly preferably from 0.5 mm to 0.6 mm. The best results are achieved with these wall thicknesses. Deviations of 0.1 mm above and below are possible due to the manufacturing process.
  • the metallic reinforcing elements contain or consist of aluminum, stainless steel or steel. These Materials are easy to process and deliver particularly good results when adjusting the coefficient of linear expansion.
  • the reinforcement elements consist of a coated steel, which is preferably coated with an adhesion promoter. Compared to aluminium, steel has lower thermal conductivity and good linear expansion. In addition, steel is very stable and cheaper than stainless steel.
  • the metallic reinforcement elements are attached in the form of a metallic foil or a metallic sheet. These have the advantage that they offer a flat surface for attaching the barrier film. Nets or grids, on the other hand, are more difficult to stick with a barrier film, but have the advantage that less material is required for production.
  • the thickness of the first and second metallic reinforcement elements is preferably between 0.1 mm and 0.4 mm. In this area, a good stiffening of the polymeric hollow profile is achieved by the reinforcing elements and at the same time the thermal conductivity in the edge area of the later insulating glass unit is increased only to a small extent. A thickness of 0.2 mm has proven particularly advantageous. Manufacturing-related tolerances in thickness are 0.1 mm above and below.
  • the height a of the area remaining free from the barrier film is between 1 mm and 3 mm.
  • the barrier film is not visible in the finished insulating glass unit and the visual impression is therefore advantageous.
  • the primary sealant can be applied in the finished insulating glazing such that the primary sealant is attached to the plastic of the sidewalls and the barrier film. In this way, interfacial diffusion at the transition from barrier film to plastic is significantly reduced.
  • the first and second reinforcement elements each have legs of equal length. This symmetrical structure is advantageous for the stability of the spacer.
  • the legs are the areas that project onto the side wall and the outer wall.
  • the legs are the areas that are not arranged on the inclined section of the outer wall of the hollow profile.
  • the hollow profile contains polyethylene (PE), polycarbonate (PC), polypropylene (PP), polyethylene terephthalate (PET), polyethylene terephthalate glycol (PET-G), polyoxymethylene (POM), polyamide, polybutylene terephthalate (PBT) , PET/PC, PBT/PC and/or copolymers thereof.
  • the hollow profile essentially consists of one of the listed polymers. These materials provide particularly good results in terms of the necessary flexibility that is required for the spacer to be bendable without additional heating.
  • the spacer contains exactly two metallic reinforcing elements. This reduces the material costs for further reinforcement elements and improves the heat-insulating properties.
  • the spacer contains further metallic reinforcement elements. Additional reinforcement elements can further improve the rigidity of the spacer.
  • the spacer also contains a third reinforcement element, which is arranged in the area of the outer wall and is also contained in an indentation, so that it is flush with the outer wall.
  • the glazing interior wall has at least one perforation.
  • a plurality of perforations are preferably made in the glazing interior wall. The total number of perforations depends on the size of the insulating glass unit.
  • the perforations in the glazing interior wall connect the cavity with the interior space between the panes, allowing gas exchange between them. This allows the moisture in the air to be absorbed by a desiccant in the cavity, thus preventing the windows from fogging up.
  • the perforations are preferably designed as slits, particularly preferably as slits with a width of 0.2 mm and a length of 2 mm. The slits ensure an optimal exchange of air without desiccant penetrating from the hollow space into the inner space between the panes.
  • the perforations can simply be punched or drilled into the glazing interior wall.
  • the perforations are hot stamped into the glazing cavity wall.
  • the material of the interior wall of the glazing is porous or made of a plastic that is open to diffusion, so that no perforations are required.
  • the gas-tight and moisture-tight barrier film prevents moisture from penetrating into the cavity of the spacer.
  • the barrier foil can be a metal foil or polymer foil or a multilayer foil with polymeric and metallic layers or with polymeric and ceramic layers or with polymeric, metallic and ceramic layers.
  • the barrier film preferably contains at least one polymeric layer and a metallic layer or a ceramic layer.
  • the layer thickness of the polymer layer is preferably between 5 ⁇ m and 80 ⁇ m, while metallic layers and/or ceramic layers with a thickness of 10 nm to 200 nm are used. A particularly good impermeability of the barrier film is achieved within the layer thicknesses mentioned.
  • the barrier film particularly preferably contains at least two metallic layers and/or ceramic layers which are arranged alternately with at least one polymeric layer.
  • the outer layers are preferably formed by the polymeric layer.
  • the alternating layers of the barrier film can be bonded or applied to one another by a variety of methods known in the art. Methods for depositing metallic or ceramic layers are well known to those skilled in the art.
  • the use of a barrier film with an alternating sequence of layers is particularly advantageous with regard to the tightness of the system. A defect in one of the layers does not lead to a loss of function of the barrier film. In comparison, even a small defect in a single layer can lead to complete failure.
  • the application of several thin layers is advantageous compared to one thick layer, since the risk of internal adhesion problems increases with increasing layer thickness.
  • thicker layers have a higher conductivity, so that such a film is thermodynamically less suitable.
  • the polymeric layer of the barrier film preferably comprises polyethylene terephthalate, ethylene vinyl alcohol, polyvinylidene chloride, polyamides, polyethylene, polypropylene, silicones, acrylonitriles, polyacrylates, polymethyl acrylates and/or copolymers or mixtures thereof.
  • the metallic layer preferably contains iron, aluminum, silver, copper, gold, chromium and/or alloys or oxides thereof.
  • the ceramic layer of the foil preferably contains silicon oxides and/or silicon nitrides.
  • the barrier film contains an adhesion promoter layer, which serves to improve the adhesion of the secondary sealant in the finished insulating glazing.
  • This adhesion promoter layer is arranged as the outermost layer of the barrier film so that it is in contact with the secondary sealant in the finished insulating glazing.
  • a chemical pre-treatment or a metal-containing thin layer can be used as an adhesion promoter layer.
  • the metal-containing thin film preferably has a thickness between 5 nm and 30 nm.
  • the hollow profile preferably has a width of 5 mm to 55 mm, preferably 10 mm to 20 mm, along the interior wall of the glazing.
  • the width is the dimension extending between the side walls.
  • the width is the distance between the opposite surfaces of the two side walls.
  • the distance between the panes of the insulating glass unit is determined by the selection of the width of the glazing interior wall.
  • the exact dimensions of the glazing interior wall depend on the dimensions of the insulating glass unit and the desired size of the space between the panes.
  • the hollow profile preferably has a height of 5 mm to 15 mm, particularly preferably 5 mm to 10 mm, along the side walls.
  • the spacer has an advantageous stability, but on the other hand it is advantageously inconspicuous in the insulating glass unit.
  • the cavity of the spacer is of an advantageous size for accommodating a suitable amount of desiccant.
  • the height of the spacer is the distance between the opposite surfaces of the outer wall and the glazing cavity wall.
  • a desiccant is preferably contained in the cavity, preferably silica gels, molecular sieves, CaCl 2 , Na 2 SO 4 , activated carbon, silicates, bentonites, zeolites and/or mixtures thereof.
  • the invention also includes an insulating glass unit with at least a first pane, a second pane, a circumferential spacer according to the invention arranged between the first and second panes, an inner space between the panes and an outer space between the panes.
  • the spacer according to the invention is arranged to form a circumferential spacer frame.
  • the first disc is attached to the first side wall of the spacer with a primary sealant and the second disc is attached to the second side wall with a primary sealant. That is, a primary sealant is disposed between the first side wall and the first pane and between the second side wall and the second pane.
  • the primary sealant is in contact with the barrier film applied to the sidewalls and the first and second metal reinforcement members.
  • the first pane and the second pane are arranged in parallel and preferably congruently.
  • the edges of the two panes are therefore arranged flush in the edge area, i.e. they are at the same height.
  • the interior space between the panes is defined by the first and second panes and the interior glazing wall.
  • the outer pane gap is defined as the space bounded by the first pane, the second pane and the barrier film on the outer wall of the spacer.
  • the outer space between the panes is at least partially filled with a secondary sealant.
  • the secondary sealant contributes to the mechanical stability of the insulating glass unit and absorbs part of the climatic loads that affect the edge seal.
  • the primary sealant extends to the areas of the first and second side wall adjoining the glazing interior wall, which are free of the barrier film.
  • the primary sealant thus covers the transition between the polymeric hollow profile and the barrier film, so that the insulating glass unit is sealed particularly well. In this way, the diffusion of moisture into the cavity of the spacer at the point where the barrier film meets the plastic is reduced (less interfacial diffusion).
  • the secondary sealant is applied along the first pane and the second pane in such a way that a central area of the outer wall is free of secondary sealant.
  • the central area refers to the area centrally located with respect to the two outer panes, as opposed to the two outer areas of the outer wall which are adjacent to the first pane and second pane.
  • the secondary sealant is applied in such a way that the entire outer space between the panes is completely filled with secondary sealant. This leads to maximum stabilization of the insulating glass unit.
  • the secondary sealant preferably contains polymers or silane-modified polymers, particularly preferably organic polysulfides, silicones, room-temperature-vulcanizing (RTV) silicone rubber, peroxide-vulcanized silicone rubber and/or addition-vulcanized silicone rubber, polyurethanes and/or butyl rubber. These sealants have a particularly good stabilizing effect.
  • polymers or silane-modified polymers particularly preferably organic polysulfides, silicones, room-temperature-vulcanizing (RTV) silicone rubber, peroxide-vulcanized silicone rubber and/or addition-vulcanized silicone rubber, polyurethanes and/or butyl rubber.
  • the primary sealant preferably contains a polyisobutylene.
  • the polyisobutylene can be crosslinking or non-crosslinking polyisobutylene.
  • the first pane and the second pane of the insulating glass unit preferably contain glass, ceramic and/or polymers, particularly preferably quartz glass, borosilicate glass, soda-lime glass, polymethyl methacrylate or polycarbonate.
  • the first pane and the second pane have a thickness of 2 mm to 50 mm, preferably 3 mm to 16 mm, it also being possible for the two panes to have different thicknesses.
  • the spacer frame consists of one or more spacers according to the invention.
  • it may be a spacer according to the invention bent into a complete frame. It can also be a matter of several spacers according to the invention, which are linked to one another via one or more plug connectors.
  • the connectors can be designed as longitudinal connectors or corner connectors. Such corner connectors can be designed, for example, as a plastic molded part with a seal, in which two spacers provided with a fermentation cut collide.
  • the spacer according to the invention can be bent in the heated state, for example.
  • the insulating glazing comprises more than two panes.
  • the spacer can contain grooves, for example, in which at least one further disk is arranged.
  • Several panes could also be designed as a laminated glass pane.
  • the insulating glass unit is manufactured mechanically on double glazing systems known to those skilled in the art.
  • a spacer frame comprising the spacer according to the invention is provided.
  • the spacer frame is preferably produced by bending the spacer according to the invention into a frame which is closed at one point by welding, gluing and/or using a plug connector.
  • a first pane and a second pane are provided and the spacer frame is fixed via a primary sealant between the first and second panes.
  • the spacer frame is placed on the first pane with the first side wall of the spacer and fixed using the primary sealant.
  • the second pane is then placed congruently with the first pane on the second side wall of the spacer and also fixed using the primary sealant and the pane arrangement is pressed.
  • the outer space between the panes is filled with a secondary sealant at least partially filled.
  • the method according to the invention thus makes it possible to produce an insulating glass unit in a simple and cost-effective manner. No special new machines are required since, thanks to the structure of the spacer according to the invention, conventional bending machines can be used, such as are already available for metal cold-bendable spacers.
  • the invention also includes the use of the insulating glass unit according to the invention as building interior glazing, building exterior glazing and/or facade glazing.
  • FIG. 1 shows a cross section through a polymeric hollow profile that is suitable for a spacer according to the invention.
  • the hollow profile 1 comprises a first side wall 2.1, a side wall 2.2 running parallel thereto, a glazing interior wall 3 and an outer wall 4.
  • the glazing interior wall 3 runs perpendicular to the side walls 2.1 and 2.2 and connects the two side walls.
  • the outer wall 4 is opposite the glazing interior wall 3 and connects the two side walls 2.1 and 2.2.
  • the outer wall 4 runs essentially perpendicular to the side walls 2.1 and 2.2.
  • the sections 4.1 and 4.2 of the outer wall 4 closest to the side walls 2.1 and 2.2 are at an angle ⁇ (alpha) of about 45° to the outer wall 4 in Inclined towards the side walls 2.1 and 2.2.
  • the angled geometry improves the stability of the hollow profile 1 and enables better adhesion to the first and second reinforcement element and to a barrier film 12.
  • the wall thickness d of the hollow profile is 0.5 mm.
  • the wall thickness d is essentially the same everywhere. This improves the stability of the hollow profile and simplifies production.
  • the hollow profile 1 has, for example, a height h of 6.5 mm and a width of 15.5 mm.
  • the outer wall 4, the glazing interior wall 3 and the two side walls 2.1 and 2.2 enclose the cavity 5. In the area of the corner between the first side wall 2.1 and the outer wall 4, a first indentation 7.1 is arranged. In the area of the corner between the second side wall 2.2 and the outer wall 4, a second indentation 7.2 is arranged.
  • indentations allow for the placement of a first metallic reinforcement member and a second metallic reinforcement member.
  • the indentations result from the fact that the wall of the polymeric hollow profile in the area of the corner is set back by a distance e inwards in the direction of the cavity 5 . In the area of the first and second indentation, the wall is set back inwards by a distance e of 0.3 mm.
  • FIG figure 2 shows a cross section of a spacer I according to the invention.
  • the spacer comprises a polymeric hollow profile which is constructed as shown in FIG figure 1 described.
  • the hollow profile 1 is a polymeric hollow profile, which essentially consists of polypropylene.
  • a first metallic reinforcing element 6.1 is fitted in the first indentation 7.1 and a second metallic reinforcing element 6.2 is fitted in the second indentation 7.2.
  • the first and second reinforcement members are each 0.25mm thick stainless steel foil bonded with an adhesive layer of polyurethane adhesive (not shown in Fig figure 2 ) are attached to the polymeric hollow profile 1.
  • the combination of adhesive layer and metallic reinforcement element fills the indentation completely.
  • the first metallic reinforcement element 6.1 is flush with the first side wall 2.1 and with the outer wall 4.
  • the second reinforcement element 6.2 is flush with the second side wall 2.2 and with the outer wall 4.
  • the adhesive layer is about 0.5 mm thick. Thanks to the adhesive layer, the spacer is particularly stable, since the adhesive layer can absorb stresses that occur in the finished insulating glass unit due to climatic loads. The stability of the spacer is thus further improved by the construction from several components.
  • the reinforcement elements primarily contribute to the longitudinal rigidity and flexibility of the spacer.
  • the first and second have metallic Reinforcing elements 6.1 and 6.2 each leg of equal length.
  • the first metallic reinforcing element 6.1 covers the section 4.1 closest to the first side wall 2.1 and protrudes along the first side wall 2.1 just as far as along the outer wall 4.
  • the second metallic reinforcing element 6.2 is constructed symmetrically accordingly.
  • This symmetrical structure is particularly advantageous for the stability of the spacer during bending.
  • a metallic reinforcement element can be produced particularly well.
  • the stainless steel foil used can be bent beforehand according to the shape of the first and second indentation 7.1, 7.2 and then glued on.
  • a gas-tight and moisture-tight barrier film 12 is arranged on the outer wall 4 and a part of the first side wall 2.1 and a part of the second side wall 2.2 and completely covers the first metallic reinforcing element 6.1 and the second metallic reinforcing element 6.2.
  • the barrier film 12 can be attached to the hollow profile 1 with a polyurethane hot-melt adhesive, for example.
  • the barrier film 12 comprises three polymer layers made of polyethylene terephthalate with a thickness of 12 ⁇ m and two metallic layers made of aluminum with a thickness of 50 nm. The metallic layers and the polymer layers are applied alternately, with the two outer layers being formed by polymer layers will.
  • the cavity 5 can accommodate a desiccant 11 .
  • Perforations 24 are provided in the glazing interior wall 3, which create a connection to the inner space between the panes in the insulating glass unit. The desiccant 11 can then remove moisture from the inner space 15 between the panes via the perforations 24 in the inner glazing space wall 3 (see figure 4 ) take up.
  • figure 3 shows a cross section of another spacer I according to the invention.
  • the spacer differs from that in figure 2 shown essentially due to the different shape of the hollow profile 1.
  • the outer wall 4 runs essentially parallel to the glazing interior surface 3.
  • the manufacture of the spacer shown is simpler, since the reinforcing elements only once angled and the substantially rectangular shape is easier to manufacture.
  • the area to which the glass panes are attached in the finished insulating glazing is larger than in the embodiment shown in figure 2 is shown.
  • figure 4 shows a cross section of the edge area of an insulating glass unit II according to the invention with the figure 2 shown spacer I.
  • the first disc 13 is connected via a primary sealant 17 to the first side wall 2.1 of the spacer I
  • the second disc 14 is attached via the primary sealant 17 to the second side wall 2.2.
  • the primary sealant 17 contains a crosslinking polyisobutylene.
  • the inner space 15 between the panes is located between the first pane 13 and the second pane 14 and is delimited by the glazing inner space wall 3 of the spacer I according to the invention.
  • the cavity 5 is filled with a desiccant 11, for example a molecular sieve.
  • the cavity 5 is connected to the inner space 15 between the panes via perforations 24 in the glazing interior wall 3 .
  • the first pane 13 and the second pane 14 protrude beyond the side walls 2.1 and 2.2, so that an outer pane gap 16 is created, which is located between the first pane 13 and the second pane 14 and is delimited by the outer wall 4 with the barrier film 12 of the spacer.
  • the edge 21 of the first disc 13 and the edge 22 of the second disc 14 are arranged at the same height.
  • the outer space 16 between the panes is filled with a secondary sealant 18 .
  • the secondary sealant 18 is a silicone, for example. Silicones absorb the forces acting on the edge seal particularly well and thus contribute to the high stability of the insulating glass unit II.
  • the first pane 13 and the second pane 14 consist of soda-lime glass with a thickness of 3 mm.
  • FIG. 5 shows a view of another possible embodiment of the insulating glass unit II according to the invention.
  • the insulating glass unit shown is essentially the same as in FIG figure 4 shown. It differs in the secondary sealant 18.
  • An organic polysulfide is attached as the secondary sealant 18 in the outer space 16 between the panes.
  • the central area of the outer wall 4 is free of secondary sealant 18.
  • the secondary sealant 18 is attached to the two outer areas of the outer wall 4 and is adjacent to the first or second pane. Good stabilization of the insulating glazing is achieved in this way, with secondary sealant 18 being saved at the same time.
  • the heat-insulating properties of the edge bond of the insulating glass unit are improved since the separation of the secondary sealant 18 interrupts the thermal conduction through the secondary sealant.

Landscapes

  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Securing Of Glass Panes Or The Like (AREA)
  • Joining Of Glass To Other Materials (AREA)

Claims (15)

  1. - Espaceur (I) pour unités de vitrage isolant, comportant au moins
    - un profilé creux polymère (1), comportant :
    - une première paroi latérale (2.1) et une seconde paroi latérale (2.2) disposée parallèlement à celle-ci ;
    - une paroi d'espace intérieur de vitrage (3) qui relie l'une à l'autre les parois latérales (2.1 , 2.2);
    - une paroi extérieure (4), qui est disposée sensiblement parallèlement à la paroi d'espace intérieur de vitrage (3) et qui relie l'une à l'autre les parois latérales (2.1 , 2.2);
    - un espace creux (5) qui est entouré par les parois latérales (2.1, 2.2), la paroi d'espace intérieur de vitrage (3) et la paroi extérieure (4), dans lequel
    - un premier élément de renfort métallique (6.1) est appliqué à l'extérieur sur le profilé creux polymère (1) dans un premier décrochement (7.1) prévu à cet effet, de sorte qu'il entoure le coin entre la première paroi latérale (2.1) et la paroi extérieure (4) ;
    - un second élément de renfort métallique (6.2) est appliqué à l'extérieur sur le profilé creux polymère (1) dans un second décrochement (7.2) prévu à cet effet, de sorte qu'il entoure le coin entre la seconde paroi latérale (2.2) et la paroi extérieure (4) ;
    - les premier et second éléments de renfort métalliques (6.1, 6.2) sont appliqués dans les premier et second décrochements (7.1, 7.2) de telle sorte qu'ils sont respectivement en affleurement avec les première et seconde parois latérales (2.1, 2.2) et la paroi extérieure (4) ;
    - un film-barrière (12) étanche aux gaz et étanche à l'humidité est appliqué sur la première paroi latérale (2.1), le premier élément de renfort métallique (6.1), la paroi extérieure (4), le second élément de renfort métallique (6.2) et sur la seconde paroi latérale (2.2) du corps creux polymère (1), les zones des deux parois latérales (2.1 , 2.2) adjacentes à la paroi d'espace intérieur de vitrage (3) étant exemptes du film-barrière (12) .
  2. - Espaceur (I) selon la revendication 1, dans lequel les sections de la paroi extérieure (4.1, 4.2) les plus proches des parois latérales (2.1, 2.2) sont inclinées d'un angle α (alpha) de 30° à 60° par rapport à la paroi extérieure en direction des parois latérales (2.1, 2.2), de telle sorte que le premier élément de renfort métallique (6.1) et le second élément de renfort métallique (6.2) sont coudés deux fois, l'angle α (alpha) étant, de préférence, de 45°.
  3. - Espaceur (I) selon l'une des revendications 1 ou 2, dans lequel le premier élément de renfort métallique (6.1) et le second élément de renfort métallique (6.2) sont collés sur le profilé creux polymère (1), de préférence sont collés au moyen d'un polyuréthane thermoplastique.
  4. - Espaceur (I) selon l'une des revendications 1 à 3, dans lequel le profilé creux polymère ne contient pas de fibres de verre.
  5. - Espaceur (I) selon l'une des revendications 1 à 4, dans lequel le profilé creux polymère (1) présente une épaisseur de paroi d sensiblement uniforme.
  6. - Espaceur (I) selon la revendication 5, dans lequel l'épaisseur de paroi d est de 0,3 mm à 0,8 mm, de préférence de 0,5 mm à 0,6 mm.
  7. - Espaceur (I) selon l'une des revendications 1 à 6, dans lequel les premier et second éléments de renfort métalliques (6.1, 6.2) contiennent de l'aluminium, de l'acier inoxydable ou de l'acier ou en sont constitués, de façon particulièrement préférée sont constitués d'un acier revêtu.
  8. - Espaceur (I) selon l'une des revendications 1 à 7, dans lequel les premier et second éléments de renfort métalliques (6.1 , 6.2) sont une feuille métallique ou une tôle métallique.
  9. - Espaceur (I) selon l'une des revendications 1 à 8, dans lequel les premier et second éléments de renfort métalliques (6.1 , 6.2) ont une épaisseur de 0,1 mm à 0,4 mm, de préférence de 0,2 mm.
  10. - Espaceur (I) selon l'une des revendications 1 à 9, dans lequel le profilé creux polymère (1) contient du polyéthylène (PE), des polycarbonates (PC), du polypropylène (PP), du poly(téréphtalate d'éthylène) (PET), du poly(téréphtalate d'éthylène) glycolisé (PET-G), du polyoxyméthylène (POM), des polyamides, du poly(téréphtalate de butylène) (PBT), du PET/PC, du PBT/PC et/ou des copolymères de ceux-ci.
  11. - Unité de vitrage isolant (II), comportant au moins une première vitre (13), une seconde vitre (14), un espaceur (I) disposé de manière périphérique entre la première vitre (13) et la deuxième vitre (14), selon l'une des revendications 1 à 10, dans laquelle
    - la première vitre (13) est appliquée sur la première paroi latérale (2.1) par l'intermédiaire d'un moyen d'étanchéité primaire (17) ;
    - la seconde vitre (14) est appliquée sur la seconde paroi latérale (2.2) par l'intermédiaire d'un moyen d'étanchéité primaire (17) ;
    - un espace entre vitres intérieur (15) est délimité par la paroi d'espace intérieur de vitrage (3), la première vitre (13) et la seconde vitre (14) ;
    - un espace entre vitres extérieur (16) est délimité par le film-barrière (12) appliqué sur la paroi extérieure (4) et par la première vitre (13) et la seconde vitre (14) ;
    - un moyen d'étanchéité secondaire (18) est disposé dans l'espace entre vitres extérieur (16).
  12. - Unité de vitrage isolant (II) selon la revendication 11, dans laquelle le moyen d'étanchéité primaire (17) s'étend jusqu'aux zones des parois latérales (2.1 , 2.2) qui sont exemptes du film-barrière (12).
  13. - Unité de vitrage isolant (II) selon l'une des revendications 11 ou 12, dans laquelle le moyen d'étanchéité secondaire (18) est appliqué le long de la première vitre (13) et de la seconde vitre (14) de telle sorte qu'une zone centrale (27) de la paroi extérieure (4) est exempte de moyen d'étanchéité secondaire (18).
  14. - Procédé de fabrication d'une unité de vitrage isolant (II) selon l'une des revendications 11 à 13, dans lequel au moins
    - un espaceur (I) selon l'une quelconque des revendications 1 à 10 est fourni ;
    - l'espaceur (I) est plié pour former un cadre d'espaceur qui est fermé en un endroit ;
    - une première vitre (13) et une seconde vitre (14) sont fournies ;
    - l'espaceur (I) est fixé entre la première vitre (13) et la seconde vitre (14) par l'intermédiaire d'un moyen d'étanchéité primaire (17) ;
    - l'ensemble de vitres formé des vitres (13, 14) et de l'espaceur (I) est pressé ; et
    - l'espace entre vitres extérieur (15) est au moins partiellement rempli d'un moyen d'étanchéité secondaire (18) .
  15. - Utilisation de l'unité de vitrage isolant (II) selon l'une des revendications 11 à 13 comme vitrage intérieur de bâtiment, vitrage extérieur de bâtiment et/ou vitrage de façade.
EP19711364.0A 2018-04-16 2019-03-19 Espaceur pourvu d'éléments de renforcement Active EP3781773B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL19711364T PL3781773T3 (pl) 2018-04-16 2019-03-19 Element dystansowy z elementami wzmacniającymi

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP18167474 2018-04-16
PCT/EP2019/056743 WO2019201530A1 (fr) 2018-04-16 2019-03-19 Écarteur muni d'éléments de renfort

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EP3781773A1 EP3781773A1 (fr) 2021-02-24
EP3781773B1 true EP3781773B1 (fr) 2022-03-16

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Country Link
EP (1) EP3781773B1 (fr)
JP (1) JP7052073B2 (fr)
KR (1) KR102567521B1 (fr)
CN (1) CN111936717A (fr)
DE (1) DE202019005906U1 (fr)
DK (1) DK3781773T3 (fr)
ES (1) ES2909754T3 (fr)
PL (1) PL3781773T3 (fr)
WO (1) WO2019201530A1 (fr)

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KR102567521B1 (ko) 2018-04-16 2023-08-16 쌩-고벵 글래스 프랑스 보강 요소를 갖는 스페이서
CA3176372A1 (fr) 2020-06-22 2021-12-30 Karl-Theo ROES Vitrage isolant comportant un espaceur equipe d'un profile de renforcement
WO2022179965A1 (fr) 2021-02-25 2022-09-01 Saint-Gobain Glass France Espaceur pliable à froid présentant une rigidité améliorée
CN115968419A (zh) 2021-08-11 2023-04-14 法国圣戈班玻璃厂 具有抑制有色反射的功能层的玻璃板
WO2023198709A1 (fr) 2022-04-14 2023-10-19 Saint-Gobain Glass France Entretoise à rigidité mécanique améliorée

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0852280A1 (fr) 1996-12-20 1998-07-08 Saint-Gobain Vitrage Suisse AG Entretoise pour vitrage multiple
DE19807454A1 (de) 1998-02-21 1999-08-26 Ensinger Abstandhalter
EP1055046B2 (fr) 1998-02-11 2007-09-26 Technoform Caprano + Brunnhofer oHG Profile d'ecartement pour unite de plaques isolantes
WO2012055553A1 (fr) 2010-10-27 2012-05-03 Technoform Glass Insulation Holding Gmbh Profilé d'espacement et vitrage isolant présentant un tel profilé d'espacement
WO2013104507A1 (fr) 2012-01-13 2013-07-18 Saint-Gobain Glass France Espaceur pour vitrages isolants
WO2015043848A1 (fr) 2013-09-30 2015-04-02 Saint-Gobain Glass France Entretoise pour vitrages isolants
EP3241972A1 (fr) 2016-05-04 2017-11-08 Technoform Glass Insulation Holding GmbH Espaceur destiné à une unité de vitrage isolant
WO2019201530A1 (fr) 2018-04-16 2019-10-24 Saint-Gobain Glass France Écarteur muni d'éléments de renfort

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JPS6126886U (ja) * 1984-07-25 1986-02-18 サンデン株式会社 複層ガラス
DE102011009359A1 (de) * 2011-01-25 2012-07-26 Technoform Glass Insulation Holding Gmbh Abstandshalterprofil und Isolierscheibeneinheit mit einem solchen Abstandshalterprofil
JP6126886B2 (ja) 2013-03-28 2017-05-10 シーアイ化成株式会社 嵌合具付き袋体
EP3008270A1 (fr) * 2013-06-14 2016-04-20 Saint-Gobain Glass France Écarteur pour triples vitrages isolants
DK3198101T3 (en) 2014-09-25 2018-12-03 Saint Gobain Spacer for double glazing
JP6452822B2 (ja) 2014-12-08 2019-01-16 サン−ゴバン グラス フランスＳａｉｎｔ−Ｇｏｂａｉｎ Ｇｌａｓｓ Ｆｒａｎｃｅ 複層ガラス

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0852280A1 (fr) 1996-12-20 1998-07-08 Saint-Gobain Vitrage Suisse AG Entretoise pour vitrage multiple
EP1055046B2 (fr) 1998-02-11 2007-09-26 Technoform Caprano + Brunnhofer oHG Profile d'ecartement pour unite de plaques isolantes
DE19807454A1 (de) 1998-02-21 1999-08-26 Ensinger Abstandhalter
WO2012055553A1 (fr) 2010-10-27 2012-05-03 Technoform Glass Insulation Holding Gmbh Profilé d'espacement et vitrage isolant présentant un tel profilé d'espacement
WO2013104507A1 (fr) 2012-01-13 2013-07-18 Saint-Gobain Glass France Espaceur pour vitrages isolants
WO2015043848A1 (fr) 2013-09-30 2015-04-02 Saint-Gobain Glass France Entretoise pour vitrages isolants
EP3241972A1 (fr) 2016-05-04 2017-11-08 Technoform Glass Insulation Holding GmbH Espaceur destiné à une unité de vitrage isolant
WO2019201530A1 (fr) 2018-04-16 2019-10-24 Saint-Gobain Glass France Écarteur muni d'éléments de renfort

Also Published As

Publication number Publication date
ES2909754T3 (es) 2022-05-10
DK3781773T3 (da) 2022-04-11
KR20200133241A (ko) 2020-11-26
PL3781773T3 (pl) 2022-05-30
WO2019201530A1 (fr) 2019-10-24
KR102567521B1 (ko) 2023-08-16
CN111936717A (zh) 2020-11-13
JP2021517615A (ja) 2021-07-26
DE202019005906U1 (de) 2023-02-14
EP3781773A1 (fr) 2021-02-24
JP7052073B2 (ja) 2022-04-11

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