WO2019201530A1 - Abstandhalter mit verstärkungselementen - Google Patents
Abstandhalter mit verstärkungselementen Download PDFInfo
- Publication number
- WO2019201530A1 WO2019201530A1 PCT/EP2019/056743 EP2019056743W WO2019201530A1 WO 2019201530 A1 WO2019201530 A1 WO 2019201530A1 EP 2019056743 W EP2019056743 W EP 2019056743W WO 2019201530 A1 WO2019201530 A1 WO 2019201530A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- wall
- spacer
- disc
- glazing
- hollow profile
- Prior art date
Links
- 125000006850 spacer group Chemical group 0.000 title claims abstract description 129
- 230000003014 reinforcing effect Effects 0.000 title claims abstract description 73
- 230000004888 barrier function Effects 0.000 claims abstract description 45
- 229910052751 metal Inorganic materials 0.000 claims abstract description 18
- 238000007373 indentation Methods 0.000 claims abstract description 16
- 239000002184 metal Substances 0.000 claims abstract description 15
- 239000011521 glass Substances 0.000 claims description 72
- 239000000565 sealant Substances 0.000 claims description 35
- 238000007789 sealing Methods 0.000 claims description 21
- 238000004519 manufacturing process Methods 0.000 claims description 18
- -1 polyethylene Polymers 0.000 claims description 18
- 239000003365 glass fiber Substances 0.000 claims description 13
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 10
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 10
- 239000004417 polycarbonate Substances 0.000 claims description 9
- 229920000515 polycarbonate Polymers 0.000 claims description 9
- 239000004743 Polypropylene Substances 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- 239000011888 foil Substances 0.000 claims description 6
- 229920001707 polybutylene terephthalate Polymers 0.000 claims description 6
- 229920001155 polypropylene Polymers 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 239000004698 Polyethylene Substances 0.000 claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 5
- 229920000573 polyethylene Polymers 0.000 claims description 5
- 239000010935 stainless steel Substances 0.000 claims description 5
- 229910001220 stainless steel Inorganic materials 0.000 claims description 5
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 4
- 229930040373 Paraformaldehyde Natural products 0.000 claims description 4
- 229920006324 polyoxymethylene Polymers 0.000 claims description 4
- 239000004952 Polyamide Substances 0.000 claims description 3
- 229920001577 copolymer Polymers 0.000 claims description 3
- 229920002647 polyamide Polymers 0.000 claims description 3
- 239000004433 Thermoplastic polyurethane Substances 0.000 claims description 2
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 2
- 229920005644 polyethylene terephthalate glycol copolymer Polymers 0.000 claims description 2
- 229920002803 thermoplastic polyurethane Polymers 0.000 claims description 2
- 229920000642 polymer Polymers 0.000 abstract description 14
- 239000010408 film Substances 0.000 description 41
- 239000010410 layer Substances 0.000 description 34
- 239000000853 adhesive Substances 0.000 description 11
- 230000001070 adhesive effect Effects 0.000 description 11
- 239000002274 desiccant Substances 0.000 description 10
- 239000000463 material Substances 0.000 description 9
- 239000000919 ceramic Substances 0.000 description 8
- 239000012790 adhesive layer Substances 0.000 description 7
- 238000005452 bending Methods 0.000 description 7
- 229920003023 plastic Polymers 0.000 description 7
- 239000004033 plastic Substances 0.000 description 7
- 230000008901 benefit Effects 0.000 description 6
- 229920002367 Polyisobutene Polymers 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 239000013047 polymeric layer Substances 0.000 description 4
- 229920001296 polysiloxane Polymers 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000004132 cross linking Methods 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 229920002635 polyurethane Polymers 0.000 description 3
- 239000004814 polyurethane Substances 0.000 description 3
- 239000004945 silicone rubber Substances 0.000 description 3
- 230000006641 stabilisation Effects 0.000 description 3
- 238000011105 stabilization Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- 239000002318 adhesion promoter Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000002808 molecular sieve Substances 0.000 description 2
- 150000008116 organic polysulfides Chemical class 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 229920002379 silicone rubber Polymers 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- 239000005361 soda-lime glass Substances 0.000 description 2
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 239000004416 thermosoftening plastic Substances 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229920000219 Ethylene vinyl alcohol Polymers 0.000 description 1
- 239000004831 Hot glue Substances 0.000 description 1
- 229920002319 Poly(methyl acrylate) Polymers 0.000 description 1
- 229920001328 Polyvinylidene chloride Polymers 0.000 description 1
- 239000004823 Reactive adhesive Substances 0.000 description 1
- 150000008360 acrylonitriles Chemical class 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 235000012216 bentonite Nutrition 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000007767 bonding agent Substances 0.000 description 1
- 239000005388 borosilicate glass Substances 0.000 description 1
- 229920005549 butyl rubber Polymers 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 239000004715 ethylene vinyl alcohol Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
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- 238000011049 filling Methods 0.000 description 1
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- 239000003292 glue Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- RZXDTJIXPSCHCI-UHFFFAOYSA-N hexa-1,5-diene-2,5-diol Chemical compound OC(=C)CCC(O)=C RZXDTJIXPSCHCI-UHFFFAOYSA-N 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910000765 intermetallic Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000005340 laminated glass Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 229920006254 polymer film Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 239000005033 polyvinylidene chloride Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 229920002631 room-temperature vulcanizate silicone Polymers 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 150000004760 silicates Chemical class 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Chemical class [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 239000003707 silyl modified polymer Substances 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 229920000638 styrene acrylonitrile Polymers 0.000 description 1
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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 their use.
- Insulating glazing usually contains at least two glass or polymeric materials.
- the disks are separated from each other 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.
- Silver-containing coatings for example, enable a reduced transmission of infrared radiation and thus reduce the cooling of a building in winter.
- the contact points between the spacer and the glass pane are very susceptible to temperature and climatic fluctuations.
- the connection between the disc and the spacer is produced via an adhesive bond of organic polymer, for example polyisobutylene.
- organic polymer for example polyisobutylene.
- the glass and the spacers have different coefficients of thermal expansion, that is, they expand
- the heat-insulating properties of insulating glazings are significantly influenced by the thermal conductivity in the region of the edge bond, in particular of the spacer.
- the high thermal conductivity of the metal results in the formation of a thermal bridge at the edge of the glass.
- this thermal bridge leads to heat losses in the edge region of the insulating glazing and, on the other hand, in the case of high air humidity and low outside temperatures, the formation of condensate on the inner pane in the area of the spacer.
- so-called "warm-edge" systems are used, in which the spacers consist of materials with lower thermal conductivity, in particular plastics.
- polymeric spacers are preferable to metallic spacers.
- polymeric spacers have several disadvantages. On the one hand, the tightness of the polymeric spacers against moisture and gas loss is not sufficient.
- a barrier film on the outside of the spacer see for example WO2013 / 104507 A1.
- the coefficients of linear expansion of plastics are much larger than those of glass.
- glass fibers can be admixed (see, for example, EP0852280 A1).
- an increased glass fiber content deteriorates the heat-conducting properties of the spacer, so that a precise optimization must be carried out here.
- Glass fibers and similar fillers also improve the longitudinal rigidity of the spacer.
- Polymer glass fiber reinforced spacers are so brittle that unlike metallic spacers they are not cold bendable.
- For the manufacture of a spacer frame for an insulating glass unit several pieces of spacers must be connected via connectors and glued or welded. Each joint must be carefully sealed. Therefore, the production of a spacer frame by bending is advantageous. In particular, bending without additional heating is desirable for ease of machinability.
- One approach to increasing bendability is to integrate one metallic strip in the polymeric body (for example, in WO2015 / 043848 A1 and DE19807454 A1 described). However, the integration of a metallic strip into the polymeric base body is very complicated during production.
- Polymeric spacers without additional fillers such as glass fibers are flexible and not sufficiently rigid.
- the longitudinal stiffness refers to longitudinal deflection
- An improvement in the longitudinal stiffness can be achieved by the integration of metallic strips (see previous point) or the external application of metallic elements on the body (see for example EP1055046B2 and EP3241972 A1).
- the application of a metallic strip deteriorates the heat-conducting properties of the spacer, since the metallic elements have an increased thermal conductivity.
- a particular difficulty in the external application of individual metallic elements is the perfect sealing of the edge compound 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 side wall, a glazing interior wall, an exterior wall and a cavity.
- the cavity is enclosed by the side walls, the glazing interior wall and the exterior wall.
- the glazing interior wall is arranged substantially perpendicular to the side walls and connects the first side wall with 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 glazing interior wall is the wall of the hollow profile, which points to the inner space between the panes after installation in the finished insulating glass unit.
- the outer wall is arranged substantially parallel to the glazing interior wall and connects the first side wall to the second side wall. The outer wall has after installation in the finished insulating glass unit to the outer space between the panes.
- the spacer further comprises two metallic reinforcing elements which are externally attached to the polymeric hollow profile.
- the metallic reinforcing elements improve the longitudinal rigidity of the spacer and achieve an approximation of the coefficient of linear expansion of the spacer to that of the glass in an insulating glass unit.
- the first reinforcing element surrounds the corner between the first side wall and the outer wall and is mounted there in a recess provided in the wall of the polymeric hollow profile.
- the second reinforcing element surrounds the corner between the second side wall and the outer wall and is mounted there in a recess provided in the wall of the polymeric hollow profile.
- the reinforcing elements are mounted in the recesses so that they are flush with the side walls and the outer wall.
- the gas- and moisture-proof barrier film is applied to the first side wall, the first metal reinforcing element, the outer wall, the second metal reinforcing element and on the second side wall of the polymeric hollow body.
- the gas- and moisture-proof barrier film seals the inner pane cavity 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 so that the adjacent to the glazing interior wall areas of the two side walls are free of barrier film.
- the primary sealant can be applied so that it extends over the barrier film and over a portion of the polymeric sidewall. This achieves a uniform sealing level and achieves a particularly good seal.
- the spacer according to the invention provides an improved solution over the prior art.
- the cavity of the spacer according to the invention leads to a reduction in weight compared to a solid-shaped spacer and is available for receiving other components, such as a desiccant available.
- the first side wall and the second side wall represent the sides of the spacer at which the mounting of the outer panes of an insulating glass unit takes place during installation of the spacer.
- 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 inner wall, which points away from the interior of the insulating glass unit (inner pane clearance) in the direction of the outer space between the panes.
- the outer wall preferably runs substantially perpendicular to the side walls.
- a flat outer wall that behaves perpendicular to the side walls (parallel to the glazing interior wall) in its entire course has the advantage that the sealing surface between spacers and 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 a (alpha) of 30 ° to 60 ° to the outer wall in the direction of the side walls.
- a (alpha) of 30 ° to 60 ° to the outer wall in the direction of the side walls.
- This embodiment improves the stability of the polymeric hollow profile.
- the stability of the spacer is increased because the metallic reinforcing 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 the 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 a (alpha) of 45 °. In this case, the stability of the spacer is further improved.
- the two metallic reinforcing elements are glued to the polymeric hollow profile.
- This embodiment is particularly easy to produce. A separate production of hollow profile and reinforcing element is possible.
- the difference in the coefficients of linear expansion of the metallic reinforcing elements and the polymeric hollow profile (metal and polymer) causes the connection between the reinforcing element and the polymer hollow profile to be subjected to stresses in the event of temperature differences.
- an adhesive layer By attaching an adhesive layer, a part of the stresses can be absorbed via the elasticity of the adhesive layer.
- Suitable adhesives are thermoplastic adhesives, but also reactive adhesives, such as multicomponent adhesives.
- a preferred adhesive is a thermoplastic Glue, particularly preferably used a thermoplastic polyurethane. This has proven to be particularly suitable in experiments.
- 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 worse cold bendable, since they are 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 coefficient of linear expansion of 27 ⁇ 10 6 1 / K was measured. This means that a 1 km long spacer expands by 27 mm when the temperature rises by 1 K.
- the polymeric hollow profile has a substantially uniform wall thickness d. This leads to an improvement in the bendability in comparison to hollow profiles with regions of different wall thickness. It has been shown that with a uniform wall thickness fewer fractures of the spacer occur during cold bending than at different wall thicknesses.
- the wall thickness d is from 0.3 mm to 0.8 mm.
- the spacer is stable and at the same time flexible enough to be cold bendable.
- the wall thickness of 0.5 mm to 0.6 mm. With these wall thicknesses the best results are achieved. Deviations of 0.1 mm upwards and downwards are possible due to the production.
- the metallic reinforcing elements contain or consist of aluminum, stainless steel or steel. These Materials are easy to process and provide particularly good results when adjusting the coefficient of linear expansion. Particularly preferably, the reinforcing elements consist of a coated steel, which is preferably coated with a bonding agent. Steel has a lower thermal conductivity and good elongation compared to aluminum. In addition, steel is very stable and cheaper than stainless steel.
- the metallic reinforcing elements are attached in the form of a metallic foil or a metal sheet. These have the advantage that they provide a flat surface for the attachment of the barrier film. On the other hand, nets or grids are less easily adhered with a barrier film, but have the advantage that less material is needed for the production.
- the thickness of the first and second metallic reinforcing elements is between 0.1 mm to 0.4 mm.
- 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 region of the future insulating glass unit is only slightly increased.
- a thickness of 0.2 mm has proved particularly advantageous. Manufacturing tolerances in thickness are 0.1 mm up and down.
- the height a of the area left by 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 thus advantageous.
- the primary sealant may be mounted in the finished insulating glazing so that the primary sealant is applied to the plastic of the sidewalls and the barrier film. Thus, interfacial diffusion at the transition from barrier film to plastic is significantly reduced.
- the first and second reinforcing elements each have legs of equal length.
- the legs are the areas that protrude on the sidewall and on the outer wall.
- the legs are the areas that are not disposed on the inclined portion of the outer wall of the hollow profile.
- the hollow profile contains polyethylene (PE), polycarbonates (PC), polypropylene (PP), polyethylene terephthalate (PET), polyethylene terephthalate glycol (PET-G), polyoxymethylene (POM), polyamides, polybutylene terephthalate (PBT).
- the hollow profile consists essentially of one of the listed polymers. These materials give particularly good results in terms of the flexibility required for the flexibility of the spacer without additional heating.
- the spacer contains exactly two metallic reinforcing elements. This reduces the material costs for further reinforcing elements and improves the heat-insulating properties.
- the spacer contains further metallic reinforcing elements. Further reinforcing elements can further improve the rigidity of the spacer.
- the spacer still contains a third reinforcing element, which is arranged in the region of the outer wall and is also contained in a recess, so that it is flush with the outer wall.
- the glazing interior wall has at least one perforation.
- a plurality of perforations are mounted 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 to the inner space between the panes, allowing gas exchange therebetween.
- a recording of humidity is allowed by a desiccant located in the cavity and thus prevents fogging of the discs.
- the perforations are preferably designed as slots, particularly preferably as slots with a width of 0.2 mm and a length of 2 mm. The slots ensure optimal air exchange without the possibility of drying agents penetrating from the cavity into the inner space between the panes.
- the perforations can be easily punched or drilled into the glazing cavity wall after the hollow profile is made. Preferably, the perforations are punched warm into the glazing interior wall. In an alternative preferred embodiment, the material of the glazing interior wall is made porous or with a diffusion-open plastic, so that no perforations are required.
- the gas-tight and moisture-proof barrier film prevents the penetration of moisture into the cavity of the spacer.
- the barrier film may be a metal foil or polymer film or a multilayer film 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 also 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. Within the stated layer thicknesses, a particularly good tightness of the barrier film is achieved.
- the barrier film 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 in a variety of methods known in the art. Methods for the deposition of metallic or ceramic layers are well known to those skilled in the art.
- the use of a barrier film with alternating layer sequence is particularly advantageous in terms of the tightness of the system. An error in one of the layers does not lead to a loss of function of the barrier film. By comparison, even a small defect in a single layer can lead to complete failure.
- the application of several thin layers in comparison to a thick layer is advantageous, 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 film preferably contains silicon oxides and / or silicon nitrides.
- the barrier film contains a primer 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.
- Adhesion promoter layer may be a chemical pretreatment or a metal-containing thin 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 of 10 mm to 20 mm, along the glazing interior wall.
- the width is within the meaning of the invention extending between the side walls dimension.
- the width is the distance between the oppositely facing surfaces of the two side walls.
- the hollow profile preferably has a height of 5 mm to 15 mm along the side walls, particularly preferably of 5 mm to 10 mm.
- this area for the height of the spacer has a favorable stability, but on the other hand advantageously advantageous in the insulating glass unit inconspicuous.
- the cavity of the spacer has an advantageous size for receiving a suitable amount of desiccant.
- the height of the spacer is the distance between the opposite surfaces of the outer wall and the glazing interior wall.
- the cavity preferably contains a desiccant, preferably silica gels, molecular sieves, CaCh, Na 2 SO 4 , activated carbon, silicates, bentonites, zeolites and / or mixtures thereof.
- a desiccant preferably silica gels, molecular sieves, CaCh, Na 2 SO 4 , activated carbon, silicates, bentonites, zeolites and / or mixtures thereof.
- the invention further comprises an insulating glass unit having at least a first pane, a second pane, a circumferential spacer according to the invention arranged between the first and second pane, an inner space between the panes and an outer pane space.
- a circumferential spacer frame is arranged to a circumferential spacer frame.
- the first disc is attached to the first sidewall of the spacer via a primary sealant
- the second disc is attached to the second sidewall via a primary sealant. That is, between the first side wall and the first disc and between the second side wall and the second disc, a primary sealing means is arranged.
- the primary sealant is in contact with the barrier film, which is mounted on the side walls and the first and second metallic reinforcing member.
- the first disc and the second disc are arranged parallel and preferably congruent.
- the edges of the two discs are therefore arranged flush in the edge region, that is, they are located at the same height.
- the inner pane space is limited by the first and second pane and the glazing interior wall.
- the outer space between the panes is defined as the space bounded by the first pane, the second pane and the barrier film on the outer wall of the standoff.
- the outer pane clearance is at least partially expired 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 act on the edge seal.
- the primary sealing means extends to the areas of the first and second side wall which are adjacent to the glazing interior wall and which are free of the barrier film.
- the primary sealant covers the transition between the polymer hollow profile and the barrier film, so that a particularly good sealing of the insulating glass unit is achieved. In this way, the diffusion of moisture into the cavity of the spacer at the location where the barrier film borders the plastic is reduced (less interfacial diffusion).
- the secondary sealing means along the first disc and the second disc is applied so that a central region of the outer wall is free of secondary sealing means.
- the central area indicates the central area 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 the second pane.
- the secondary sealant is mounted so that the entire outer space between the panes is completely filled with secondary sealant. This leads to a maximum stabilization of the insulating glass unit.
- the secondary sealant polymers or silane-modified polymers more preferably organic polysulfides, silicones, room temperature vulcanizing (RTV) silicone rubber, peroxidischvernetzten silicone rubber and / or addition-crosslinked silicone rubber, polyurethanes and / or butyl rubber.
- RTV room temperature vulcanizing
- these sealants have a particularly good stabilizing effect.
- the primary sealant preferably contains a polyisobutylene.
- the polyisobutylene may be a 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 disc and the second disc have a thickness of 2 mm to 50 mm, preferably 3 mm to 16 mm, both discs can also have different thicknesses.
- the spacer frame consists of one or more spacers according to the invention. It may, for example, be a spacer according to the invention, which is bent to a complete frame. It may also be a plurality of spacers according to the invention, which are linked together via one or more connectors.
- the connectors can be designed as a longitudinal connector or corner connector. Such corner connectors may for example be designed as a plastic molded part with seal, in which two provided with a fermentation section spacers.
- the most varied geometries of the insulating glass unit are possible, for example rectangular, trapezoidal and rounded shapes.
- the spacer according to the invention can be bent, for example, in the heated state.
- the insulating glazing comprises more than two panes.
- the spacer may for example contain grooves in which at least one further disc is arranged. It could also be formed several discs as a laminated glass.
- the invention further comprises a method for producing an insulating glass unit according to the invention comprising the steps:
- a spacer frame comprising the spacer according to the invention is provided.
- the spacer frame is made by bending the spacer according to the invention into a frame which is closed at one point by welding, gluing and / or by means of a connector.
- a first disc and a second disc are provided and the spacer frame is fixed by primary sealing means between the first and second discs.
- the spacer frame is placed with the first sidewall of the spacer on the first disc and fixed over the primary sealant.
- the second disc is placed congruent to the first disc on the second side wall of the spacer and also fixed on the primary sealant and the disc assembly is pressed.
- the outer pane space is filled with a secondary sealant at least partially filled.
- the inventive method thus enables the simple and cost-effective production of an insulating glass unit.
- There are no special new machines needed because thanks to the structure of the spacer according to the invention conventional bending machines can be used, as they are already available for metallic cold bendable spacers.
- the invention further comprises the use of the insulating glass unit according to the invention as building interior glazing, building exterior glazing and / or facade glazing.
- Figure 1 is a cross-section of a possible embodiment of a polymeric
- Figure 2 is a cross-section of a possible embodiment of a
- Figure 3 is a cross-section of another possible embodiment of a
- Insulating glass unit according to the invention
- Figure 5 is a cross-section of another possible embodiment of the
- Insulating glass unit according to the invention.
- FIG. 1 shows a cross section through a polymeric hollow profile, which is suitable for a spacer according to the invention.
- the hollow profile 1 comprises a first side wall 2.1, a parallel thereto side wall 2.2, a glazing interior wall 3 and an outer wall 4.
- the glazing interior wall 3 is perpendicular to the side walls 2.1 and 2.2 and connects the two side walls.
- the outer wall 4 lies opposite the glazing inner wall 3 and connects the two side walls 2.1 and 2.2.
- the outer wall 4 extends substantially perpendicular to the side walls 2.1 and 2.2.
- the side walls 2.1 and 2.2 are closest sections 4.1 and 4.2 of the outer wall 4 are at an angle a (alpha) of about 45 ° to the outer wall 4 in Direction of the side walls 2.1 and 2.2 inclined.
- the angled geometry improves the stability of the hollow profile 1 and allows better bonding with the first and second reinforcing element and with 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 the 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 inner 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 outer wall 4, a first indentation 7.1 is arranged. In the area of the corner between the second side wall 2.2 and outer wall 4, a second indentation 7.2 is arranged.
- first metallic reinforcing member and a second metallic reinforcing member.
- the indentations arise from the fact that the wall of the polymeric hollow profile in the region of the corner is set back by a distance e inwards in the direction of the cavity 5.
- the wall is set back in the region of the first and second indentation in each case by a distance e of 0.3 mm inwards.
- FIG. 2 shows a cross section of a spacer according to the invention I.
- the spacer comprises a polymeric hollow profile, which is constructed as described for Figure 1.
- the hollow profile 1 is a polymeric hollow profile consisting essentially of polypropylene.
- a first metallic reinforcing element 6.1 is mounted and in the second indentation 7.2, a second metallic reinforcing element 6.2 is attached.
- the first and second reinforcing elements are each 0.25 mm thick stainless steel films, which are fixed by means of an adhesive layer of polyurethane adhesive (not shown in Figure 2) on the polymeric hollow profile 1. The combination of adhesive layer and metallic reinforcing element completely fills the indentation.
- the first metallic reinforcing element 6.1 is flush with the first side wall 2.1 and with the outer wall 4.
- the second reinforcing element 6.2 is flush with the second side wall 2.2 and with the outer wall 4 from.
- the adhesive layer is about 0.5 mm thick in this case. Thanks to the adhesive layer, the spacer is particularly stable because the adhesive layer can absorb stresses that arise due to climate loads in the finished insulating glass unit. Thus, the structure of several components, the stability of the spacer is further improved.
- the reinforcing elements contribute mainly to the longitudinal rigidity and flexibility of the spacer.
- the first and second metallic Reinforcement 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 as far along the first side wall 2.1 as it does along the outside wall 4.
- the second metal reinforcing element 6.2 is constructed symmetrically. This symmetrical structure is particularly advantageous for the stability of the spacer during bending. In addition, such a metallic reinforcing element can be produced particularly well.
- the stainless steel foil used may be previously bent according to the shape of the first and second indentation 7.1, 7.2 and then glued.
- a gas-tight and moisture-proof 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 first 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, for example with a polyurethane hot melt adhesive.
- the barrier film 12 comprises three polymeric layers of polyethylene terephthalate having a thickness of 12 microns and two metallic layers of aluminum with a thickness of 50 nm.
- the metallic layers and the polymer layers are each mounted alternately, wherein the two outer layers of polymeric layers become.
- the cavity 5 can receive a desiccant 11.
- perforations 24 are mounted, which produce a connection to the inner space between the panes in the insulating glass unit. Via the perforations 24 in the glazing interior wall 3, the desiccant 11 can then absorb moisture from the inner space between the panes 15 (see FIG. 4).
- FIG. 3 shows a cross-section of a further spacer I according to the invention.
- the spacer differs from that shown in FIG. 2 essentially by the different shape of the hollow profile 1.
- the outer wall 4 runs essentially parallel to the glazing interior surface 3. This results in that the first reinforcing element 6.1 and the second reinforcing element 6.2 are only slightly angled, since the hollow profile is substantially rectangular. This leads to a slightly lower stability of the reinforcing elements 6.1 and 6.2.
- the production of the spacer shown is easier because the reinforcing elements only once angled and the substantially rectangular shape is easier to manufacture.
- the area where the glass sheets are mounted in the finished insulating glazing larger than in the embodiment shown in Figure 2.
- Figure 4 shows a cross section of the edge region of an insulating glass unit II according to the invention with the spacer shown in Figure I.
- the first disc 13 is connected via a primary sealing means 17 with the first side wall 2.1 of the spacer I, and the second disc 14 is on the primary sealant 17 attached to the second side wall 2.2.
- the primary sealant 17 contains a crosslinking polyisobutylene.
- the inner space between the panes 15 is located between the first pane 13 and the second pane 14 and is bounded by the glazing interior wall 3 of the spacer I according to the invention.
- the cavity 5 is filled with a desiccant 1 1, for example molecular sieve. Via perforations 24 in the glazing interior wall 3, the cavity 5 is connected to the inner sliding gap 15.
- the first disk 13 and the second disk 14 protrude beyond the side walls 2.1 and 2.2, so that an outer space between the panes 16 is formed, which is located between the first disk 13 and second disk 14 and is limited 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 a height.
- the outer pane clearance 16 is expired with a secondary sealant 18.
- the secondary sealant 18 is, for example, a silicone. Silicones absorb the forces acting on the edge bond particularly well and thus contribute to a high stability of the insulating glass unit II.
- the first disc 13 and the second disc 14 are made of soda-lime glass having a thickness of 3 mm.
- FIG. 5 shows a view of a further possible embodiment of the insulating glass unit II according to the invention.
- the insulating glass unit shown is substantially identical to that shown in FIG. It differs by the secondary sealant 18.
- an organic polysulfide is attached as a secondary sealant 18.
- the middle region of the outer wall 4 is free of secondary sealing means 18.
- the secondary sealing means 18 is mounted on the two outer regions of the outer wall 4 and adjoins the first or second disc.
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)
Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2020554404A JP7052073B2 (ja) | 2018-04-16 | 2019-03-19 | 補強要素を有するスペーサー |
ES19711364T ES2909754T3 (es) | 2018-04-16 | 2019-03-19 | Separador con elementos de refuerzo |
KR1020207029328A KR102567521B1 (ko) | 2018-04-16 | 2019-03-19 | 보강 요소를 갖는 스페이서 |
EP19711364.0A EP3781773B1 (de) | 2018-04-16 | 2019-03-19 | Abstandhalter mit verstärkungselementen |
CN201980026450.9A CN111936717A (zh) | 2018-04-16 | 2019-03-19 | 具有加强元件的间距保持件 |
PL19711364T PL3781773T3 (pl) | 2018-04-16 | 2019-03-19 | Element dystansowy z elementami wzmacniającymi |
DK19711364.0T DK3781773T3 (da) | 2018-04-16 | 2019-03-19 | Afstandsholder med forstærkningselementer |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP18167474 | 2018-04-16 | ||
EP18167474.8 | 2018-04-16 |
Publications (1)
Publication Number | Publication Date |
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WO2019201530A1 true WO2019201530A1 (de) | 2019-10-24 |
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ID=62002075
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/EP2019/056743 WO2019201530A1 (de) | 2018-04-16 | 2019-03-19 | Abstandhalter mit verstärkungselementen |
Country Status (9)
Country | Link |
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EP (1) | EP3781773B1 (de) |
JP (1) | JP7052073B2 (de) |
KR (1) | KR102567521B1 (de) |
CN (1) | CN111936717A (de) |
DE (1) | DE202019005906U1 (de) |
DK (1) | DK3781773T3 (de) |
ES (1) | ES2909754T3 (de) |
PL (1) | PL3781773T3 (de) |
WO (1) | WO2019201530A1 (de) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2021259676A1 (de) | 2020-06-22 | 2021-12-30 | Saint-Gobain Glass France | Isolierverglasung umfassend abstandhalter mit verstärkungsprofil |
EP3781773B1 (de) | 2018-04-16 | 2022-03-16 | Saint-Gobain Glass France | Abstandhalter mit verstärkungselementen |
WO2022179965A1 (de) | 2021-02-25 | 2022-09-01 | Saint-Gobain Glass France | Kaltbiegbarer abstandhalter mit verbesserter steifigkeit |
WO2023016975A1 (de) | 2021-08-11 | 2023-02-16 | Saint-Gobain Glass France | Scheibe mit funktioneller schicht zur unterdrückung farbiger reflexionen |
WO2023198709A1 (de) | 2022-04-14 | 2023-10-19 | Saint-Gobain Glass France | Abstandshalter mit verbesserter mechanischer steifigkeit |
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EP3008270A1 (de) * | 2013-06-14 | 2016-04-20 | Saint-Gobain Glass France | Abstandshalter für dreifachisolierverglasungen |
CA2958613C (en) * | 2014-09-25 | 2019-05-07 | Saint-Gobain Glass France | Spacer for insulating glazing units |
WO2016091648A1 (de) | 2014-12-08 | 2016-06-16 | Saint-Gobain Glass France | Isolierverglasung |
ES2909754T3 (es) | 2018-04-16 | 2022-05-10 | Saint Gobain | Separador con elementos de refuerzo |
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2019
- 2019-03-19 ES ES19711364T patent/ES2909754T3/es active Active
- 2019-03-19 JP JP2020554404A patent/JP7052073B2/ja active Active
- 2019-03-19 DK DK19711364.0T patent/DK3781773T3/da active
- 2019-03-19 WO PCT/EP2019/056743 patent/WO2019201530A1/de unknown
- 2019-03-19 PL PL19711364T patent/PL3781773T3/pl unknown
- 2019-03-19 KR KR1020207029328A patent/KR102567521B1/ko active IP Right Grant
- 2019-03-19 CN CN201980026450.9A patent/CN111936717A/zh active Pending
- 2019-03-19 EP EP19711364.0A patent/EP3781773B1/de active Active
- 2019-03-19 DE DE202019005906.7U patent/DE202019005906U1/de active Active
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EP3781773B1 (de) | 2018-04-16 | 2022-03-16 | Saint-Gobain Glass France | Abstandhalter mit verstärkungselementen |
WO2021259676A1 (de) | 2020-06-22 | 2021-12-30 | Saint-Gobain Glass France | Isolierverglasung umfassend abstandhalter mit verstärkungsprofil |
WO2022179965A1 (de) | 2021-02-25 | 2022-09-01 | Saint-Gobain Glass France | Kaltbiegbarer abstandhalter mit verbesserter steifigkeit |
WO2023016975A1 (de) | 2021-08-11 | 2023-02-16 | Saint-Gobain Glass France | Scheibe mit funktioneller schicht zur unterdrückung farbiger reflexionen |
DE202022002923U1 (de) | 2021-08-11 | 2024-01-11 | Saint-Gobain Glass France | Scheibe mit funktioneller Schicht zur Unterdrückung farbiger Reflexionen |
WO2023198709A1 (de) | 2022-04-14 | 2023-10-19 | Saint-Gobain Glass France | Abstandshalter mit verbesserter mechanischer steifigkeit |
Also Published As
Publication number | Publication date |
---|---|
KR20200133241A (ko) | 2020-11-26 |
CN111936717A (zh) | 2020-11-13 |
EP3781773B1 (de) | 2022-03-16 |
JP7052073B2 (ja) | 2022-04-11 |
EP3781773A1 (de) | 2021-02-24 |
ES2909754T3 (es) | 2022-05-10 |
DK3781773T3 (da) | 2022-04-11 |
JP2021517615A (ja) | 2021-07-26 |
PL3781773T3 (pl) | 2022-05-30 |
KR102567521B1 (ko) | 2023-08-16 |
DE202019005906U1 (de) | 2023-02-14 |
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