EP3052731B1 - Abstandshalter für isolierverglasungen - Google Patents

Abstandshalter für isolierverglasungen Download PDF

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Publication number
EP3052731B1
EP3052731B1 EP14753266.7A EP14753266A EP3052731B1 EP 3052731 B1 EP3052731 B1 EP 3052731B1 EP 14753266 A EP14753266 A EP 14753266A EP 3052731 B1 EP3052731 B1 EP 3052731B1
Authority
EP
European Patent Office
Prior art keywords
wall
spacer
polymeric
spacer according
basic body
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.)
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Application number
EP14753266.7A
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German (de)
English (en)
French (fr)
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EP3052731A1 (de
Inventor
Hans-Werner Kuster
Walter Schreiber
Martin RIGAUD
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
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 EP14753266.7A priority Critical patent/EP3052731B1/de
Priority to PL14753266T priority patent/PL3052731T3/pl
Publication of EP3052731A1 publication Critical patent/EP3052731A1/de
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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
    • E06B3/66361—Section members positioned at the edges of the glazing unit with special structural provisions for holding drying agents, e.g. packed in special containers
    • 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
    • E06B3/66304—Discrete spacing elements, e.g. for evacuated glazing units
    • 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
    • E06B3/673—Assembling the units
    • E06B3/67304—Preparing rigid spacer members before assembly
    • 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
    • E06B3/673—Assembling the units
    • E06B3/67304—Preparing rigid spacer members before assembly
    • E06B3/67308—Making spacer frames, e.g. by bending or assembling straight sections
    • E06B3/67313—Making spacer frames, e.g. by bending or assembling straight sections by bending
    • 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
    • E06B3/677—Evacuating or filling the gap between the panes ; Equilibration of inside and outside pressure; Preventing condensation in the gap between the panes; Cleaning the gap between the panes
    • E06B3/6775—Evacuating or filling the gap during assembly
    • 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 glazing, a method for its production, its use and an insulating glazing.
  • Insulating glazings usually consist of two glass panes, which are arranged at a defined distance from each other by a spacer (spacer). The spacer is arranged circumferentially in the edge region of the glazing. Between the discs, a gap is thus formed, which is usually filled with an inert gas. The heat flow between the glazing-limited interior and the external environment can be significantly reduced by the insulating glazing compared to a simple glazing.
  • the spacer has a non-negligible influence on the thermal properties of the disc.
  • Conventional spacers are made of a light metal, usually aluminum. These can be processed easily.
  • the spacer is typically made as a straight, endless profile, which is cut to the required size and then bent to the rectangular shape required for use in the insulating glazing. Due to the good thermal conductivity of the aluminum, however, the insulating effect of the glazing in the edge area is significantly reduced ( cold edge effect).
  • spacers are made in particular of plastic and therefore have a significantly reduced thermal conductivity.
  • plastic spacers are made DE 27 52 542 C2 or DE 19 625 845 A1 known.
  • the plastic spacers have disadvantages. Although they can be produced by extrusion as an endless profile, for example, the subsequent bending requires local heating of the material, which is not easy to achieve with conventional machines. Such profiles therefore require considerable investment for the manufacturer of insulating glazings.
  • the plastic spacer with a metallic foil to improve the bendability.
  • the metallic foil is in particular on the surfaces facing the glass panes and in between lying, facing away from the space between the disc space of the spacer.
  • the improvement of the bending properties in this solution is accompanied by a deterioration of the thermal properties, because the metallic foil acts as a thermal bridge.
  • the thermal advantages of the plastic spacers are therefore outweighed to some extent again.
  • the present invention has for its object to provide such a spacer.
  • the spacer according to the invention for insulating glazing of at least two glass panes comprises at least one polymeric base body.
  • the polymeric body comprises at least two side walls parallel to each other and intended to face the glass sheets and be brought into contact with the glass sheets, which are interconnected by an inner wall and an outer wall.
  • the side walls, the inner wall and the outer wall surround a hollow chamber.
  • Such a hollow chamber is common for spacers and is provided in particular for receiving a desiccant.
  • a reinforcing strip is incorporated in each side wall of the polymeric body.
  • the reinforcing strip preferably contains at least one metal or a metallic alloy.
  • embedded means that the reinforcing strip is surrounded all around by the material of the polymeric main body or the side walls of the polymeric main body.
  • the reinforcing strips give the spacer the necessary flexibility to be processed with conventional industrial equipment.
  • the spacer can be bent to its final shape without having to be heated first.
  • the reinforcement strips keep the shape permanently stable.
  • the reinforcing strip increases the stability of the spacer.
  • the reinforcing strips do not act as a thermal bridge, so that the properties of the spacer with respect to the heat conduction are not significantly adversely affected. This has two reasons in particular: (a) the reinforcing strips are incorporated in the polymeric base body, so they have no contact with the environment; (B) the reinforcing strips arranged in the side walls and not in the outer wall or the inner wall, over which the heat exchange between the space between the panes and the outside environment takes place.
  • the simultaneous realization of bendability and optimum thermal properties is the decisive advantage of the present invention.
  • the inventors have also recognized that the bendability depends on the glass fiber content of the polymeric base body.
  • the glass fiber content is in conventional polymeric spacers made of glass fiber reinforced plastic at about 35 wt .-%. By this glass fiber content sufficient stability of the spacer is achieved. However, the spacer with such a high fiber content is too stiff to be bent without damage.
  • the inventors have recognized that a glass fiber content of at most 20 wt .-% allows good flexibility. The associated with the reduced glass fiber content lower rigidity and stability, especially against restoring forces after bending, is compensated by the reinforcing profiles of the invention.
  • the reinforcing strips according to the invention in conjunction with the inventively low glass fiber content of the polymer body thus allow good flexibility while high stability and rigidity in installation position.
  • the other sections of the main body except the side walls, in particular the inner wall and the outer wall, preferably have no metallic deposits.
  • the thermal conductivity ( ⁇ value) of the spacer is preferably less than 0.25 W / (m * K), more preferably less than 0.2 W / (m * K). This refers to the thermal conductivity measured for the entire spacer (equivalent thermal conductivity) without consideration of local fluctuations in the thermal conductivity as a function of the exact position on the spacer.
  • Such low thermal conductivities are surprisingly achieved by a polymeric base body with the reinforcing profile according to the invention.
  • the side walls of the polymeric base body are intended to be facing the glass sheets in the manufactured insulating glazing.
  • the contact of the spacer with the glass panes takes place via the side walls. There must be no direct contact between spacer and disc. Instead, the contact can be made indirectly, for example via a sealing compound.
  • the inner wall is designed to face the gap between the glass panes in the finished insulating glazing.
  • the inner wall is provided in an advantageous embodiment with holes to ensure the effect of a desiccant in the hollow chamber on the gap.
  • the outer wall is opposite the inner wall and is intended to face the outer environment of the insulating glazing.
  • the outer wall points out of the gap between the glass panes in which the spacer is located.
  • the side walls, the outer wall and the inner wall and optionally the connecting sections each preferably have a thickness (material thickness) of 0.5 mm to 2 mm, particularly preferably from 0.8 mm to 1.5 mm.
  • the thickness of the polymeric base body is preferably constant, that is, all walls and sections have the same thickness. Such a spacer is easy to work with and advantageously stable.
  • the inner wall, the outer wall and the side walls are each formed plan in a preferred embodiment.
  • the inner wall, the outer wall and the side walls are in this sense, planar portions of the polymeric body.
  • Each wall is connected at its ends to the respective ends of the two adjacent walls.
  • the side walls may be connected directly to the inner wall and the outer wall.
  • the inner wall is connected directly to the side walls, while the outer wall is connected indirectly, namely via connecting portions with the side walls.
  • the connecting sections are preferably also flat educated.
  • the inner wall is preferably arranged at an angle of about 90 ° to each side wall.
  • the side walls are parallel to each other and the inner wall is parallel to the outer wall.
  • the connecting portions are preferably arranged at an angle to each side wall of 120 ° to 150 °, ideally 135 °. This shape for the spacer has proven particularly useful.
  • the width of the polymeric base body is preferably from 5 mm to 35 mm, particularly preferably from 5 mm to 33 mm, for example from 10 mm to 20 mm.
  • the width is within the meaning of the invention extending between the side walls dimension.
  • the width is the distance between the facing away from each other surfaces of the two side walls.
  • the width of the base body defines the distance of the two glass panes in the insulating glazing.
  • the height of the polymeric base body is preferably from 3 mm to 20 mm, more preferably from 5 mm to 10 mm and most preferably from 5 mm to 8 mm. In this area for the height of the spacer has a favorable stability, but on the other hand advantageous in the double glazing unobtrusive.
  • the hollow chamber of the spacer has a favorable size for receiving a suitable amount of desiccant.
  • the height is the distance between the opposite surfaces of the outer wall and the inner wall.
  • the polymeric base body preferably comprises at least polyethylene (PE), polycarbonates (PC), polypropylene (PP), polystyrene, polybutadiene, polynitriles, polyesters, polyurethanes, polymethylmethacrylates, polyacrylates, polyamides, polyethylene terephthalate (PET), polybutylene terephthalate (PBT), acrylonitrile-butadiene Styrene (ABS), acrylic ester-styrene-acrylonitrile (ASA), acrylonitrile-butadiene-styrene-polycarbonate (ABS / PC), styrene-acrylonitrile (SAN), polyethylene terephthalate-polycarbonate (PET / PC), polybutylene terephthalate-polycarbonate (PBT / PC) or copolymers or derivatives or mixtures thereof.
  • PE polyethylene
  • PC polycarbonates
  • PP polypropylene
  • polystyrene polybut
  • the polymeric base body particularly preferably contains polypropylene (PP), acrylonitrile-butadiene-styrene (ABS), acrylic ester-styrene-acrylonitrile (ASA), acrylonitrile-butadiene-styrene-polycarbonate (ABS / PC), styrene-acrylonitrile (SAN), polyethylene terephthalate Polycarbonate (PET / PC), polybutylene terephthalate polycarbonate (PBT / PC) or copolymers or derivatives or mixtures thereof.
  • PP polypropylene
  • ABS acrylonitrile-butadiene-styrene
  • ASA acrylic ester-styrene-acrylonitrile
  • ABS / PC acrylonitrile-butadiene-styrene-polycarbonate
  • SAN styrene-acrylonitrile
  • PET / PC polyethylene terephthalate Polycarbonate
  • PBT / PC
  • the polymeric base body has a glass fiber content of 0 wt .-% to 20 wt .-%, particularly preferably from 0 wt .-% to 15 wt .-%.
  • the glass fiber content is low. Although this reduces the rigidity and stability of the spacer, it advantageously improves the bendability. The reduced stability, especially with respect to restoring forces after bending, is compensated by the reinforcing profiles according to the invention.
  • the glass fiber content is 0 wt .-%
  • the polymeric base body thus contains no glass fiber reinforced plastic.
  • the polymeric base body contains glass fiber reinforced plastic, wherein the glass fiber content is less than 20 wt .-%, preferably less than 15 wt .-%.
  • the reinforcing strip according to the invention contains, in a preferred embodiment, at least steel.
  • Steel is readily available, easy to process and gives the spacer a particularly advantageous bendability and also improves the stability and rigidity.
  • the steel is most preferably not stainless steel, which is particularly advantageous in terms of the cost of the spacer. Corrosion of the steel is prevented by the incorporation into the polymer body.
  • the reinforcing strip has a thickness of 0.2 mm to 0.4 mm, in particular from 0.25 mm to 0.35 mm. In a particularly preferred embodiment, the thickness of the reinforcing strip is about 0.3 mm. This achieves particularly good results with regard to the bendability, rigidity and stability of the spacer.
  • the reinforcing strip preferably has a width of 1 mm to 5 mm. This achieves good bendability and stiffening.
  • the width of the reinforcement stiffener also depends on the width of the side wall in the individual case.
  • the length of the reinforcing strip preferably corresponds to the length of the polymeric base body.
  • the reinforcing strip may be perforated in an embodiment of the invention.
  • the bendability can be favorably influenced.
  • the reinforcing strip is connected via a bonding agent with the polymeric body.
  • Each contact surface between the reinforcing strip and the base body is preferably provided with the adhesion promoter. This is particularly advantageous for the adhesion between the polymer body and reinforcing strip and thus for the stability of the spacer.
  • the spacer is provided with an insulating film. The insulation film further reduces the thermal conductivity of the spacer. The insulation foil also prevents diffusion through the spacer. In particular, the penetration of moisture into the space between the panes and the loss of an inert gas from the space between the panes is prevented.
  • the insulating film preferably has a gas permeation of less than 0.001 g / (m 2 h).
  • the insulating film is arranged at least on the outer surface of the outer wall.
  • the outside surface is the surface of a wall facing away from the hollow chamber.
  • the insulating film is arranged at least on the outer surface of the entire outer wall-containing portion of the base body between the side walls. If, for example, the outer wall is connected to the side walls via a respective connecting section, then the insulating film is arranged on the outer surfaces of the outer wall and the two connecting sections.
  • the insulating film is arranged on the outer surface of the entire outer wall-containing portion of the base body between the side walls and additionally at least on the outer surface of at least a portion of each side wall.
  • the insulating film thus extends from the first side wall over the outer wall (and optionally connecting portions) to the opposite side wall. This results in particularly good results with regard to the stability of the composite of polymeric body and insulating file as well as with regard to the thermal properties of the spacer.
  • the insulation film contains at least one polymeric film.
  • the polymeric film serves as a carrier film and preferably has a thickness of 10 .mu.m to 100 .mu.m, particularly preferably from 15 .mu.m to 60 .mu.m, which is advantageous for the stability of the insulating film.
  • the insulating film also contains at least one at least one metallic or ceramic layer which is applied to the carrier film.
  • the thickness of the metallic or ceramic layer is preferably from 10 nm to 1500 nm, particularly preferably from 10 nm to 400 nm, very particularly preferably from 30 nm to 200 nm. This achieves particularly good results with regard to the insulating effect.
  • the insulating film preferably contains at least one further polymeric layer whose thickness is preferably from 5 .mu.m to 100 .mu.m, particularly preferably from 15 .mu.m to 60 .mu.m.
  • the polymeric carrier film and the polymeric layer are of the same material. This is particularly advantageous since a smaller variety of materials used simplifies the production process.
  • the polymeric film and the polymeric layer or layers preferably have the same material thickness, so that the same starting material can be used for all polymeric constituents of the insulating film.
  • the polymeric film and / or the polymeric layer preferably contain at least polyethylene terephthalate, ethylene vinyl alcohol, polyvinylidene chloride, polyamides, polyethylene, polypropylene, silicones, acrylonitriles, polymethyl acrylates or copolymers or mixtures thereof.
  • a metallic layer preferably contains iron, aluminum, silver, copper, gold, chromium or alloys or mixtures thereof.
  • a ceramic layer preferably contains silicon oxide and / or silicon nitride.
  • the insulating film preferably contains at least two metallic or ceramic layers, wherein in each case at least one polymeric layer is arranged between two adjacent metallic or ceramic layers. This is particularly advantageous for the insulating effect of the polymeric film, in particular because any defects within a layer can be compensated by one of the other layers. In addition, have multiple thin layers compared to a single thick layer better adhesion properties.
  • the uppermost layer of the insulating film is a polymeric layer, which serves to protect the metallic or ceramic layers. The uppermost layer is the layer which has the greatest distance from the polymeric carrier film.
  • the insulating film has in a particularly advantageous embodiment of two to four metallic or ceramic layers.
  • the metallic or ceramic layers are preferably each arranged alternately with at least one polymeric layer.
  • the invention further comprises an insulating glazing, comprising at least two glass panes arranged parallel to one another and a spacer according to the invention arranged in the edge region between the panes of glass.
  • the spacer is preferably formed circumferentially frame-shaped.
  • Each side wall faces one of the glass panes and is brought into contact with the respective glass pane.
  • the side walls of the spacer are preferably connected via a sealing layer with the glass sheets.
  • butyl is suitable as the sealing layer.
  • an outer sealant is preferably arranged.
  • the outer, preferably plastic sealant contains, for example, polymers or silane-modified polymers, particularly preferably organic polysulfides, silicones, RTV (room temperature curing) silicone rubber, HTV (high temperature curing) silicone rubber, peroxidically crosslinked silicone rubber and / or addition-cured silicone rubber, polyurethanes, butyl rubber and / or polyacrylates.
  • polymers or silane-modified polymers particularly preferably organic polysulfides, silicones, RTV (room temperature curing) silicone rubber, HTV (high temperature curing) silicone rubber, peroxidically crosslinked silicone rubber and / or addition-cured silicone rubber, polyurethanes, butyl rubber and / or polyacrylates.
  • the space between the panes is preferably evacuated or filled with an inert gas, for example argon or krypton.
  • the hollow chamber of the spacer is preferably completely or partially filled with a desiccant. Residual moisture in the space between the panes is absorbed by the desiccant so that the panes can not fog up.
  • Suitable drying agents are in particular silica gels, molecular sieves, CaCl 2 , Na 2 SO 4 , activated carbon, silicates, bentonites, and / or zeolites.
  • the insulating glazing preferably has a Psi value of less than 0.05 W / (m * K), preferably less than 0.035 W / (m * K).
  • the Psi value is measured as thermal conductivity on insulating glass with frame system.
  • the glass sheets are preferably made of soda-lime glass.
  • the thickness of the disks can in principle be varied as desired, and in particular a thickness of 1 mm to 25 mm, preferably of 3 mm to 19 mm, is customary.
  • the transparency of the discs is preferably greater than 85%.
  • the insulating glazing can also comprise more than two glass panes, wherein a spacer according to the invention is preferably arranged between each two adjacent panes of glass.
  • the polymeric base body with the reinforcing strips is produced as an endless profile by extrusion. From this endless profile, a profile section with the required length for use in insulating glass is cut to size. The profile section has a first and a second end. The profile section is then bent to the circumferential, usually rectangular frame shape. The ends are preferably connected to each other, for example by a connector to improve the stability of the frame shape.
  • the hollow chamber of the spacer is preferably filled with a desiccant.
  • the desiccant may alternatively be extruded together with the base body.
  • the bending of the profile section is preferably carried out without prior heating, in particular at ambient temperature. It is a particular advantage of the spacer with the reinforcing strips according to the invention that such heating is not required. Thus, the spacer can be processed on conventional industrial manufacturing equipment.
  • the polymeric base body is provided with an insulation film according to the invention. This is preferably done before bending the spacer.
  • the insulating film can be applied for example by gluing on the base body or can be extruded together with the base body.
  • the insulating glass according to the invention is produced by arranging the frame-shaped spacer in the edge region between two parallel glass panes.
  • the glass sheets are connected to the spacer, preferably by pressing and via a respective sealing layer.
  • an outer sealant is arranged at least on the outer wall.
  • the marginal space between the discs and the spacer is circumferentially filled with the outer sealant.
  • the space between the glass panes delimited by the frame-shaped spacer is preferably subjected to negative pressure and / or filled with an inert gas.
  • the invention further comprises the use of the spacer according to the invention in multiple glazings, preferably in insulating glazings.
  • the insulating glazings are preferably used as window glazing or facade glazing of buildings.
  • Fig. 1 shows a cross section through a spacer according to the invention for an insulating glazing.
  • the spacer comprises a polymer body I, which consists for example of polypropylene (PP).
  • the polymer has a Glass fiber content of 0 wt .-% or a relatively low glass fiber content of, for example, 10 wt .-% to.
  • the main body I comprises two mutually parallel side walls 1, 2, which are intended to be brought into contact with the panes of the insulating glass. Between each one end of each side wall 1,2 extends an inner wall 3, which is intended to be facing the space between the panes of the insulating glass. At the other ends of the side walls 1, 2, in each case a connecting section 7, 7 'connects. Via the connecting portions 7, 7 ', the side walls 1, 2 are connected to an outer wall 4, which is formed parallel to the inner wall 3.
  • the angle ⁇ between the connecting sections 7 (or 7 ') and the side wall 3 (or 4) is about 45 °. It follows that also the angle between the outer wall 4 and the connecting portions 7, 7 'is about 45 °.
  • the main body I surrounds a hollow chamber 5.
  • the material thickness (thickness) of the side walls 1, 2, the inner wall 3, the outer wall 4 and the connecting portions 7, 7 ' is approximately equal and is for example 1 mm.
  • the main body has, for example, a height of 6.5 mm and a width of 15 mm.
  • each side wall 1, 2 a reinforcing strip 6 is embedded.
  • the reinforcing strips 6, 6 ' are made of steel, which is not stainless steel, and have a thickness (material thickness) of, for example, 0.3 mm and a width of, for example, 3 mm.
  • the length of the reinforcing strips 6, 6 ' corresponds to the length of the main body I.
  • the reinforcing strips provide the body I with sufficient flexibility and stability to bend without prior heating and to permanently maintain the desired shape.
  • the spacer has a very low thermal conductivity, because the metallic reinforcing strips 6, 6 'are embedded only in the side walls 1,2, over which only a very small part of the heat exchange between the disc interior and outside environment takes place.
  • the reinforcing strips 6, 6 ' not as a thermal bridge.
  • an insulating film 8 is arranged on the outer surface of the outer wall 4 and the connecting portions 7, 7 'and a portion of the outer surface of each of the side walls 1, 2.
  • the insulating film 8 reduces diffusion through the spacer. Thereby for example, the ingress of moisture into the interior of the pane of an insulating glazing or the loss of the inert gas filling of the interior of the pane can be reduced.
  • the insulating film 8 also improves the thermal properties of the spacer, thus reducing the thermal conductivity.
  • the insulating film 8 comprises the following layer sequence: a polymeric carrier film (consisting of LLDPE (linear low density polyethylene), thickness: 24 ⁇ m) / a metallic layer (consisting of aluminum, thickness: 50 nm) / a polymeric layer (PET, 12 ⁇ m ) / a metallic layer (Al, 50 nm) / a polymeric layer (PET, 12 ⁇ m).
  • LLDPE linear low density polyethylene
  • the layer stack may also comprise further metallic layers and / or polymeric layers, wherein metallic and polymeric layers are preferably also arranged alternately, so that between each two adjacent metallic layers, a polymeric layer is disposed and above the uppermost metallic layer, a polymeric layer is disposed.
  • the spacer according to the invention has advantageous properties with respect to rigidity, tightness and thermal conductivity. It is therefore particularly suitable for use in insulating glass, especially in the window or facade area of buildings.
  • Fig. 2 shows a cross section through an inventive insulating glass in the region of the spacer.
  • the insulating glass consists of two glass panes 10, 11 of soda-lime glass with a thickness of, for example, 3 mm, which are connected to one another via a spacer arranged in the edge region according to the invention.
  • the spacer is the spacer according to Fig. 1 with the reinforcing strips 6,6 'and the insulating film. 8
  • the side walls 1, 2 of the spacer are connected via a respective sealing layer 13 with the glass sheets 10, 11.
  • the sealing layer 13 consists for example of butyl.
  • an outer sealant 9 is arranged in the marginal space of the insulating glass between the glass sheets 10, 11 and the spacer.
  • the sealant 9 is for example a silicone rubber.
  • the hollow chamber 5 of the main body I is filled with a desiccant 12.
  • the desiccant 12 is, for example, a molecular sieve.
  • the desiccant 12 absorbs a residual moisture present between the glass panes and the spacer and thus prevents fogging of the panes 10, 11 in the space between the panes.
  • the effect of the desiccant 12 is promoted by holes, not shown, in the inner wall 3 of the body I.
  • Fig. 3 shows a flow chart of an embodiment of the inventive method for producing a spacer for an insulating glass.
  • Comparative Example 1 differed from the example according to the invention by the configuration of the spacer. Otherwise, Comparative Example 1 was carried out in the same way as the example.
  • the spacer in Comparative Example 1 had no reinforcing strips 6, 6 'embedded in the side walls.
  • the glass fiber content of the polymer base I was 35 wt .-%.
  • the spacer was equivalent to the spacer FIG. 1 , The results are summarized in Table 1.
  • Comparative Example 2 differed from the example according to the invention by the configuration of the spacer. Otherwise, Comparative Example 2 was carried out in the same way as the example.
  • the spacer in Comparative Example 2 had no reinforcing strips 6, 6 'embedded in the side walls. Instead, a stainless steel foil having a thickness of 0.1 mm was applied on the outer surface of the side walls, the connecting portions and the outer wall to provide the spacer according to the prior art with a bendability.
  • the glass fiber content of the polymeric base body I was 35 wt .-%. The results are summarized in Table 1. Table 1 bendable? thermal conductivity example Yes 0.18 W / (m * K) Comparative Example 1 No 0.16 W / (m * K) Comparative Example 2 Yes 0.30 W / (m * K)
  • the spacer according to the invention in the example was in contrast to the spacer of Comparative Example 1 bendable due to the reinforcing strips 6,6 '.
  • the thermal conductivity was increased by the reinforcing strips 6,6 'but only slightly.
  • the spacer according to the invention in the example had, in contrast to the spacer of Comparative Example 2, a significantly low thermal conductivity.
  • the reason for this is the reinforcing strips 6,6 'according to the invention, which, in contrast to the prior art stainless steel foil, does not serve as a thermal bridge.
  • the spacer according to the invention thus combines a sufficient bendability with a very low thermal conductivity. This result was unexpected and surprising to the skilled person.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Architecture (AREA)
  • Joining Of Glass To Other Materials (AREA)
  • Securing Of Glass Panes Or The Like (AREA)
  • Laminated Bodies (AREA)
EP14753266.7A 2013-09-30 2014-08-22 Abstandshalter für isolierverglasungen Active EP3052731B1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP14753266.7A EP3052731B1 (de) 2013-09-30 2014-08-22 Abstandshalter für isolierverglasungen
PL14753266T PL3052731T3 (pl) 2013-09-30 2014-08-22 Element dystansowy dla oszkleń izolacyjnych

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP13186710 2013-09-30
PCT/EP2014/067901 WO2015043848A1 (de) 2013-09-30 2014-08-22 Abstandshalter für isolierverglasungen
EP14753266.7A EP3052731B1 (de) 2013-09-30 2014-08-22 Abstandshalter für isolierverglasungen

Publications (2)

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EP3052731A1 EP3052731A1 (de) 2016-08-10
EP3052731B1 true EP3052731B1 (de) 2018-04-11

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EP (1) EP3052731B1 (ru)
JP (1) JP6419168B2 (ru)
KR (2) KR20180021248A (ru)
CN (1) CN105579653A (ru)
AU (1) AU2014327719B2 (ru)
BR (1) BR112016001213B1 (ru)
CA (1) CA2920464C (ru)
DK (1) DK3052731T3 (ru)
EA (1) EA030837B1 (ru)
MX (1) MX2016004016A (ru)
PL (1) PL3052731T3 (ru)
TR (1) TR201807298T4 (ru)
WO (1) WO2015043848A1 (ru)

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WO2015086457A2 (de) 2013-12-12 2015-06-18 Saint-Gobain Glass France Isolierverglasung mit verbesserter abdichtung
WO2015197491A1 (de) 2014-06-27 2015-12-30 Saint-Gobain Glass France Isolierverglasung mit abstandhalter und verfahren zur herstellung
PL3161237T3 (pl) 2014-06-27 2018-12-31 Saint-Gobain Glass France Oszklenie zespolone z elementem dystansowym i sposób wytwarzania takiego oszklenia oraz jego zastosowanie jako oszklenia budynku
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KR20170109616A (ko) 2015-03-02 2017-09-29 쌩-고벵 글래스 프랑스 절연 글레이징용 유리 섬유-강화 스페이서
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KR102087074B1 (ko) * 2016-04-05 2020-04-27 쌩-고벵 글래스 프랑스 냉장 유닛용 절연 유리 유닛
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CA3141212A1 (en) 2019-08-09 2021-02-18 Saint-Gobain Glass France Glazing with rfid transponder
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WO2022179965A1 (de) 2021-02-25 2022-09-01 Saint-Gobain Glass France Kaltbiegbarer abstandhalter mit verbesserter steifigkeit
WO2023161213A1 (de) 2022-02-24 2023-08-31 Saint-Gobain Glass France Vorrichtung und verfahren zum automatisierten zusammensetzen eines polymeren abstandshalters für isolierverglasungen
WO2023198709A1 (de) 2022-04-14 2023-10-19 Saint-Gobain Glass France Abstandshalter mit verbesserter mechanischer steifigkeit
WO2024104686A1 (de) 2022-11-14 2024-05-23 Saint-Gobain Glass France Verglasungselement mit integriertem sonnenschutz

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Also Published As

Publication number Publication date
KR20180021248A (ko) 2018-02-28
CA2920464A1 (en) 2015-04-02
EA030837B1 (ru) 2018-10-31
DK3052731T3 (da) 2018-05-28
JP6419168B2 (ja) 2018-11-07
TR201807298T4 (tr) 2018-06-21
JP2016531821A (ja) 2016-10-13
US20160201381A1 (en) 2016-07-14
CA2920464C (en) 2017-10-31
EA201690676A1 (ru) 2016-07-29
BR112016001213B1 (pt) 2021-11-03
KR20160047539A (ko) 2016-05-02
PL3052731T3 (pl) 2018-08-31
MX2016004016A (es) 2016-06-02
CN105579653A (zh) 2016-05-11
AU2014327719A1 (en) 2016-02-18
AU2014327719B2 (en) 2016-11-24
BR112016001213A2 (pt) 2017-08-29
WO2015043848A1 (de) 2015-04-02
EP3052731A1 (de) 2016-08-10

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