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EP3421709B2 - Entretoise pour vitrages isolants - Google Patents
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EP3421709B2 - Entretoise pour vitrages isolants - Google Patents

Entretoise pour vitrages isolants Download PDF

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Publication number
EP3421709B2
EP3421709B2 EP18188188.9A EP18188188A EP3421709B2 EP 3421709 B2 EP3421709 B2 EP 3421709B2 EP 18188188 A EP18188188 A EP 18188188A EP 3421709 B2 EP3421709 B2 EP 3421709B2
Authority
EP
European Patent Office
Prior art keywords
metal
layer
spacer
pane
polymeric
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.)
Active
Application number
EP18188188.9A
Other languages
German (de)
English (en)
Other versions
EP3421709A1 (fr
EP3421709B1 (fr
Inventor
Walter Schreiber
Martin RIGAUD
Hans-Werner Kuster
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
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Application filed by Saint Gobain Glass France SAS, Compagnie de Saint Gobain SA filed Critical Saint Gobain Glass France SAS
Publication of EP3421709A1 publication Critical patent/EP3421709A1/fr
Application granted granted Critical
Publication of EP3421709B1 publication Critical patent/EP3421709B1/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
    • 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
    • E06B3/66333—Section members positioned at the edges of the glazing unit of unusual substances, e.g. wood or other fibrous materials, glass or other transparent materials
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/66—Units comprising two or more parallel glass or like panes permanently secured together
    • E06B3/663—Elements for spacing panes
    • E06B3/66309—Section members positioned at the edges of the glazing unit
    • E06B3/66342—Section members positioned at the edges of the glazing unit characterised by their sealed connection to the panes
    • E06B3/66352—Section members positioned at the edges of the glazing unit characterised by their sealed connection to the panes with separate sealing strips between the panes and the spacer
    • 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
    • E06B3/66333—Section members positioned at the edges of the glazing unit of unusual substances, e.g. wood or other fibrous materials, glass or other transparent materials
    • E06B2003/66338—Section members positioned at the edges of the glazing unit of unusual substances, e.g. wood or other fibrous materials, glass or other transparent materials of glass
    • 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
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/66—Units comprising two or more parallel glass or like panes permanently secured together
    • E06B3/663—Elements for spacing panes
    • E06B3/66309—Section members positioned at the edges of the glazing unit
    • E06B3/66342—Section members positioned at the edges of the glazing unit characterised by their sealed connection to the panes
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/66—Units comprising two or more parallel glass or like panes permanently secured together
    • E06B3/673—Assembling the units
    • E06B3/67326—Assembling spacer elements with the panes

Definitions

  • the invention relates to a spacer for insulating glazing, a method for its production, insulating glazing and its use.
  • the thermal conductivity of glass is about 2 to 3 times lower than that of concrete or similar building materials.
  • panes are in most cases significantly thinner than comparable elements made of stone or concrete, buildings often lose most of the heat through the external glazing.
  • the necessary additional costs for heating and air conditioning make up a part of the maintenance costs of a building that should not be underestimated.
  • lower carbon dioxide emissions are required as part of stricter building regulations.
  • An important solution for this is insulating glazing. Insulating glazing has become an indispensable part of building construction, especially in the wake of ever faster rising raw material prices and stricter environmental protection regulations. Insulating glazing therefore accounts for an increasingly large proportion of outward-facing glazing.
  • Insulating glazing usually contains at least two panes made of glass or polymeric materials.
  • the panes 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 single glass and can be further increased and improved in triple glazing or with special coatings.
  • coatings containing silver enable reduced transmission of infrared radiation and thus reduce the heating of a building in summer.
  • optical and aesthetic features are also playing an increasingly important role in the field of building glazing.
  • the heat-insulating 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, such as plastics.
  • a challenge when using plastics is the correct sealing of the spacer. Leakages within the spacer can otherwise easily lead to a loss of an inert gas between the insulating glazing. In addition to a poorer insulating effect, leaks can also easily lead to moisture penetrating the insulating glazing. Precipitation between the panes of the insulating glazing caused by moisture significantly degrades the optical quality and in many cases makes it necessary to replace the entire insulating glazing.
  • One possible approach to improving the seal and reducing the thermal conductivity associated with this is the application of a barrier film to the spacer. This film is usually attached to the spacer in the area of the outer seal. Common foil materials include aluminum or stainless steel, which have good gas tightness. At the same time, the metal surface ensures good bonding of the spacer with the sealing compound.
  • WO2013/104507 A1 discloses a spacer with a polymer base body and an insulating film.
  • the insulating film contains a polymeric film and at least two metallic or ceramic layers, which are arranged alternating with at least one polymeric layer, the outermost layers preferably being polymeric layers.
  • the metallic layers are less than one ⁇ m thick and must be protected by polymer layers. Otherwise, the automated processing of the spacers when assembling the insulating glazing can easily damage the metallic layers.
  • EP 0 852 280 A1 discloses a spacer for multiple pane insulating glazing.
  • the spacer comprises a metal foil with a thickness of less than 0.1 mm on the bonding surface and glass fiber in the plastic of the base body.
  • the metal foil on the outside is exposed to high mechanical loads during further processing in the insulating glazing. In particular, when spacers are further processed on automated production lines, the metal foil is easily damaged and the barrier effect is thus impaired.
  • the object of the invention is to provide a spacer for insulating glazing which can be produced particularly inexpensively and which enables good sealing while at the same time being simple to assemble and thus contributes to an improved insulating effect which is stable over the long term.
  • the object of the present invention is achieved according to the invention by a spacer according to independent claim 1 .
  • Preferred embodiments emerge from the dependent claims.
  • a method for producing a spacer according to the invention, insulating glazing according to the invention and their use according to the invention arise from further independent claims.
  • the spacer according to the invention for multiple pane insulating glazing comprises at least one polymer base body and a multi-layer insulating film.
  • the base body comprises two parallel pane contact surfaces, a bonding surface and a glazing interior surface.
  • the pane contact surfaces and the bonding surface are connected to one another directly or alternatively via connecting surfaces.
  • the preferably two connecting surfaces preferably have an angle of 30° to 60° to the pane contact surfaces.
  • the insulating film is located on the bonding surface or the bonding surface and the connecting surfaces.
  • the insulating film comprises at least a metal-containing barrier layer, a polymeric layer and a metal-containing thin layer.
  • a thin layer in the context of the invention designates a layer with a thickness of less than 100 nm.
  • the metal-containing barrier layer has a thickness of 1 ⁇ m to 10 ⁇ m and seals the spacer against gas and moisture loss.
  • the metal-containing barrier layer faces the bonding surface and is connected to the bonding surface directly or via an adhesion promoter.
  • the layer facing the bonding surface is the layer of the insulating film which, of all the layers of the insulating film, is at the smallest distance from the bonding surface of the polymer base body.
  • the polymer layer has a thickness of 5 ⁇ m to 80 ⁇ m and is used for additional sealing. At the same time, the polymeric layer protects the metal-containing barrier layer from mechanical damage during storage and automated assembly of the insulating glazing.
  • the metal-containing thin film has a thickness of 5 nm to 30 nm. It was surprising that an additional barrier effect can be achieved by such a thin metal-containing layer.
  • the metal-containing thin layer is adjacent to the polymeric layer, which is particularly advantageous from a production point of view, since such films can be produced separately and are available at low cost.
  • the invention thus provides a spacer which has low thermal conductivity due to a low metal content, which is excellently sealed by a multiple barrier and which can also be produced inexpensively in large quantities due to the simple structure of the insulating film.
  • the metal-containing barrier layer is very well protected by the polymeric layer, so that no damage can occur to the otherwise sensitive metal-containing barrier layer.
  • the insulating film preferably consists of the metal-containing barrier layer, the polymeric layer and the metal-containing thin layer. A very good seal is already achieved with these three layers.
  • the individual layers can be connected via adhesives.
  • the metal-containing thin layer is on the outside and thus points away from the polymer base body.
  • the outermost layer is at the greatest distance from the adhesive surface of the polymer base body.
  • the metal-containing thin layer in the finished insulating glazing thus faces the sealing layer.
  • the sequence of layers in the insulation film, starting from the area to be bonded, is then: metal-containing barrier layer - polymer layer - metal-containing thin layer.
  • the thin film not only serves as an additional barrier against gas loss and moisture penetration, but also takes on the task of an adhesion promoter.
  • the adhesion of this thin layer to the usual materials of the outer sealing is so excellent that an additional adhesion promoter can be dispensed with.
  • the polymeric layer is on the outside, so that the sequence of layers in the insulating film, starting from the bonding area, is metal-containing barrier layer—metal-containing thin layer—polymeric layer.
  • the metal-containing barrier layer is also protected from damage.
  • the insulating film contains at least one second metal-containing thin layer.
  • Another metal-containing thin layer improves the barrier effect.
  • the metal-containing thin layer is preferably on the outside, so that it acts as an adhesion promoter.
  • a layer sequence in the insulating film starting from the bonding area metal-containing barrier layer--metal-containing thin layer--polymeric layer--metal-containing thin layer is particularly preferred.
  • the barrier effect is further improved by the second metal-containing thin layer, and at the same time the metal-containing thin layer on the outside acts as an adhesion promoter.
  • the metal-containing thin film is preferably deposited by a PVD process (physical vapor deposition). Coating processes for foils with metal-containing thin layers in the nanometer range are known and are used, for example, in the packaging industry.
  • the metal-containing thin layer can be applied to a polymeric film, for example by sputtering, in the required thickness of between 5 nm and 30 nm.
  • This coated film can then be laminated with a metal-containing barrier layer in a thickness in the ⁇ m range, and the insulating film for the spacer according to the invention can thus be obtained. Such a coating can be done on one side or on both sides.
  • an insulating film can be obtained in one production step which, in combination with the polymer base body, provides a spacer with excellent sealing.
  • the insulation film is preferred on the bonding surface, attached to the connecting surfaces and part of the disc contact surfaces.
  • the bonding surfaces and the connecting surfaces are completely covered by the insulating film and the pane contact surfaces are also partially covered.
  • the insulating film particularly preferably extends over two thirds or half the height h of the pane contact surfaces. A particularly good seal is achieved in this arrangement, since in the finished insulating glazing the insulating film overlaps with the sealant which is located between the panes and the pane contact surfaces. In this way, a possible diffusion of moisture into the interior of the pane and a diffusion of gases into or out of the interior of the pane can be prevented.
  • the metal-containing barrier layer preferably contains aluminum, silver, copper and/or alloys or mixtures thereof.
  • the metal-containing layer particularly preferably contains aluminum.
  • Aluminum foils are characterized by particularly good gas tightness.
  • the metallic layer has a thickness of 5 ⁇ m to 10 ⁇ m, particularly preferably 6 ⁇ m to 9 ⁇ m. A particularly good tightness of the insulating film could be observed within the mentioned layer thicknesses. Since the metal-containing barrier layer in the structure according to the invention is protected by a polymer layer, thinner metal-containing layers can be used compared to commercially available spacers (about 30 ⁇ m to 100 ⁇ m thickness of the metal-containing layers), which improves the heat-insulating properties of the spacer.
  • the metal-containing thin film preferably contains metals and/or metal oxides.
  • Metal oxides in particular provide good adhesion to the outer seal materials when the thin film is on the outside.
  • the metal-containing thin layer particularly preferably consists of aluminum and/or aluminum oxide. These materials create good adhesion and at the same time have a particularly good barrier effect.
  • the metal-containing thin layer preferably has a thickness of 10 nm to 30 nm, particularly preferably 15 nm. A good additional barrier effect is achieved with such a thickness without the thermal properties being impaired by the formation of a thermal bridge.
  • the insulating film is bonded to the bonding surface using a non-gassing adhesive, such as a polyurethane hot-melt adhesive that hardens under moisture.
  • a non-gassing adhesive such as a polyurethane hot-melt adhesive that hardens under moisture.
  • This adhesive creates a particularly good adhesion between the glass fiber reinforced polymer base body and the metal-containing barrier layer and prevents the formation of gases that diffuse through the spacer into the interior of the pane.
  • the insulating film preferably has a gas permeation of less than 0.001 g/(m 2 h).
  • the insulating film can be applied to the base body, for example glued. Alternatively, the insulating film can be coextruded together with the base body.
  • the polymeric layer preferably comprises polyethylene terephthalate, ethylene vinyl alcohol, polyvinylidene chloride, polyamides, polyethylene, polypropylene, silicones, acrylonitriles, polyacrylates, polymethyl acrylates and/or copolymers or mixtures thereof.
  • the polymeric layer preferably has a thickness of 5 ⁇ m to 24 ⁇ m, particularly preferably 12 ⁇ m. With these thicknesses, the underlying metallic barrier layer is particularly well protected.
  • the base body preferably has a width b of 5 mm to 45 mm, particularly preferably 8 mm to 20 mm, along the interior surface of the glazing.
  • the exact diameter depends on the dimensions of the insulating glazing and the desired size of the gap.
  • the base body preferably has an overall height g of 5.5 mm to 8 mm, particularly preferably 6.5 mm, along the pane contact surfaces.
  • the base body preferably contains a desiccant, preferably silica gels, molecular sieves, CaCl 2 , Na 2 SO 4 , activated carbon, silicates, bentonites, zeolites and/or mixtures thereof.
  • the desiccant can be incorporated either within a central cavity or in the glass fiber reinforced polymer body itself.
  • the desiccant is preferably contained within the central cavity.
  • the desiccant can then be filled in directly before assembling the insulating glazing. This ensures a particularly high absorption capacity of the desiccant in the finished insulating glazing.
  • the glazing interior surface preferably has openings which allow the moisture in the air to be absorbed by the desiccant contained in the base body.
  • the base body preferably contains polyethylene (PE), polycarbonate (PC), polypropylene (PP), polystyrene, polyester, polyurethane, polymethylmetacrylate, polyacrylate, polyamide, polyethylene terephthalate (PET), polybutylene terephthalate (PBT), preferably acrylonitrile butadiene styrene (ABS) , acrylic ester-styrene-acrylonitrile (ASA), acrylonitrile-butadiene-styrene-polycarbonate (ABS/PC), styrene-acrylonitrile (SAN), PET/PC, PBT/PC and/or copolymers or mixtures thereof.
  • PE polyethylene
  • PC polycarbonate
  • PP polypropylene
  • polystyrene polyester
  • polyurethane polymethylmetacrylate
  • polyacrylate polyamide
  • PET polyethylene terephthalate
  • PBT polybutylene terephthalate
  • ABS acrylonitrile but
  • the base body is preferably glass fiber reinforced.
  • the thermal expansion coefficient of the base body can be varied and adjusted by selecting the glass fiber content in the base body. By adapting the coefficient of thermal expansion of the base body and the insulating film, temperature-related stresses between the different materials and flaking of the insulating film can be avoided.
  • the base body preferably has a glass fiber content of 20% to 50%, particularly preferably 30% to 40%. The glass fiber content in the base body improves strength and stability at the same time.
  • the invention also includes insulating glazing comprising at least two panes, a spacer according to the invention arranged circumferentially between the panes in the edge region of the panes, a sealant and an outer sealing layer.
  • a first pane bears against the first pane contact surface of the spacer and a second pane bears against the second pane contact surface.
  • a sealant is applied between the first disc and the first disc contacting surface and the second disc and the second disc contacting surface.
  • the two panes protrude beyond the spacer, so that a peripheral edge area is created which is filled with an outer sealing layer, preferably a plastic sealing compound.
  • the edge space is opposite the inner space between the panes and is delimited by the two panes and the spacer.
  • the outer sealing layer is in contact with the insulating film of the spacer according to the invention.
  • the outer sealing layer preferably contains polymers or silane-modified polymers, particularly preferably polysulfides, silicones, RTV (room temperature crosslinking) silicone rubber, HTV (high temperature crosslinking) silicone rubber, peroxide-crosslinked silicone rubber and/or addition-crosslinked silicone rubber, polyurethanes, butyl rubber and/or polyacrylates.
  • the panes contain materials such as glass and/or transparent polymers.
  • the panes preferably have an optical transparency of >85%. In principle, different geometries of the discs are possible, for example rectangular, trapezoidal and rounded geometries.
  • the panes preferably have a heat protection coating.
  • the thermal barrier coating preferably contains silver.
  • the insulating glazing can be filled with an inert gas, preferably argon or krypton, which reduces the heat transfer value in the space between the insulating glazing.
  • the polymer base body is produced by extrusion.
  • the insulating film is produced.
  • a polymer film is metallized in a PVD process. This gives the structure required for the insulating film, consisting of a polymer layer and a metal-containing thin layer.
  • This process is already used on a large scale for the production of foils in the packaging industry, so that the layered structure consisting of a polymer layer and a metal-containing thin layer can be produced cost-effectively.
  • the metalized polymeric layer is laminated with the metal-containing barrier layer.
  • a thin metal foil (corresponds to the metal-containing barrier layer) is connected to the prepared metallized polymer layer by lamination.
  • the metal-containing barrier layer can be applied both to the polymeric layer and to the metal-containing thin layer.
  • the metal-containing thin layer is on the outside of the finished insulation film and can therefore also serve as an adhesion promoter for the material of the outer seal after it has been attached to the spacer.
  • the metal-containing thin layer is on the inside and is thus protected from damage.
  • the insulating film is preferably attached to the bonding surface of the polymer base body using an adhesive.
  • the invention also includes the use of a spacer according to the invention in multiple glazing, preferably in insulating glazing.
  • FIG 1 shows a cross section of the spacer 1 according to the invention.
  • the glass fiber reinforced polymer base body 2 comprises two parallel pane contact surfaces 3.1 and 3.2, which establish contact with the panes of insulating glazing.
  • the pane contact surfaces 3.1 and 3.2 are connected via an outer adhesive surface 5 and an interior surface 4 of the glazing.
  • two angled connecting surfaces 6.1 and 6.2 are preferably arranged.
  • the connecting surfaces 6.1, 6.2 preferably run at an angle ⁇ (Alfa) of 30° to 60° to the adhesive surface 5.
  • the glass-fiber-reinforced polymer base body 2 preferably contains styrene-acrylic-nitrile (SAN) and about 35% by weight glass fiber.
  • SAN styrene-acrylic-nitrile
  • the angled shape of the first connecting surface 6.1 and the second connecting surface 6.2 improves the stability of the glass fiber reinforced polymer base body 2 and, as in figure 2 shown better bonding and insulation of the spacer according to the invention.
  • the base body has a cavity 8 and the wall thickness of the polymeric base body 2 is 1 mm, for example.
  • the width b (see figure 5 ) of the polymer base body 2 along the glazing interior surface 4 is 12 mm, for example.
  • the overall height of the polymer body is 6.5 mm.
  • An insulating film 10 is attached to the bonding surface 5, which has at least one in figure 3 shown metal-containing barrier layer 12, a polymeric layer 13 and a metal-containing thin layer 14 comprises.
  • the entire spacer according to the invention has a thermal conductivity of less than 10 W/(m K) and a gas permeation of less than 0.001 g/(m 2 h). The spacer according to the invention improves the insulating effect.
  • figure 2 shows a cross section of the insulating glazing according to the invention with the spacer 1 described in figure 1 .
  • the glass fiber reinforced polymer base body 2 with the insulating film 10 attached thereto is arranged between a first insulating glass pane 15 and a second insulating glass pane 16, the glass fiber reinforced polymer base body 2 with the insulating film 10 attached thereto is arranged.
  • the insulating film 10 is arranged on the bonding surface 5, the first connecting surface 6.1 and the second connecting surface 6.2 and on part of the pane contact surfaces.
  • the first pane 15, the second pane 16 and the insulating film 10 delimit the outer edge space 20 of the insulating glazing.
  • the outer sealing layer 17, which contains polysulfide, for example, is arranged in the outer edge space 20.
  • the insulating film can be attached to the polymeric base body 2 with PUR hotmelt adhesive, for example.
  • a sealant 18 is preferably arranged between the pane contact surfaces 3.1, 3.2 and the insulating glass panes 15, 16. This includes, for example, butyl. The sealant 18 overlaps the insulating film to prevent possible interfacial diffusion.
  • the first insulating glass pane 15 and the second insulating glass pane 16 preferably have the same dimensions and thicknesses.
  • the panes preferably have an optical transparency of >85%.
  • the insulating glass panes 15, 16 preferably contain glass and/or polymers, preferably flat glass, float glass, quartz glass, borosilicate glass, soda-lime glass, polymethyl methacrylate and/or mixtures thereof.
  • the first insulating glass pane 15 and/or the second insulating glass pane 16 can be designed as a laminated glass pane.
  • the insulating glazing according to the invention forms triple or quadruple glazing.
  • a desiccant 9 for example a molecular sieve, is arranged within the central cavity 8 within the glass-fiber-reinforced polymer base body 2 . This desiccant 9 can be filled into the cavity 8 of the spacer 1 before assembling the insulating glazing.
  • the glazing interior surface 4 includes smaller openings 7 or pores that allow gas exchange with the interior 19 of the pane.
  • FIG 3 shows a cross section of the insulating film 10 according to the invention.
  • the insulating film 10 comprises a metal-containing barrier layer 12 made of 7 ⁇ m thick aluminum, a polymeric layer made of 12 ⁇ m thick polyethylene terephthalate (PET) and a metal-containing thin layer made of 10 nm thick aluminum.
  • PET polyethylene terephthalate
  • Polyethylene terephthalate is particularly suitable for protecting the 7 ⁇ m thick aluminum layer from mechanical damage, since PET films are particularly tear-resistant.
  • the foil layers are arranged in such a way that the aluminum layers, ie the metal-containing barrier layer 12 and the metal-containing thin layer 14, are on the outside.
  • the film is arranged on a polymer base body according to the invention in such a way that the metal-containing barrier layer 12 faces the bonding surface 5 .
  • the metal-containing thin layer 14 then points outwards and at the same time acts as an adhesive layer with respect to the material of the outer sealing layer 17.
  • the metal-containing thin layer 14 not only fulfills a barrier effect but also the task of an adhesion promoter. An effective spacer can thus be obtained by skilful arrangement of a film structure that is easy to produce.
  • the structure of the insulating film 10 according to the invention lowers the thermal conductivity of the insulating film in comparison to the insulating films which consist exclusively of an aluminum foil, since the thicknesses of the metal-containing layers of the insulating film 10 according to the invention are smaller.
  • Insulation foils that only consist of an aluminum foil must be thicker, since aluminum foils with a thickness of less than 0.1 mm are highly sensitive to mechanical damage, which can occur, for example, during automated installation in insulating glazing.
  • a spacer 1 provided with the mentioned insulating film 10 according to the invention and the glass fiber reinforced polymer base body 2 has a thermal conductivity of 0.29 W/(m K).
  • figure 4 shows a cross section of an alternative embodiment of the insulating film according to the invention.
  • the materials and thicknesses are as in figure 3 described, but the order of the individual layers differs.
  • the metal-containing thin layer 14 is sandwiched between the metal-containing barrier layer 12 and the polymeric layer 13. In this arrangement, the metal-containing barrier layer 12 is protected from damage by the polymeric layer 13, thereby ensuring an unrestricted barrier effect.
  • figure 5 shows a cross section of a further embodiment of the insulating film according to the invention.
  • the structure of the insulating film 10 is essentially as in figure 4 described.
  • a further metal-containing thin layer 14 is arranged adjacent to the polymeric layer 13 . This thin layer 14 improves in particular the adhesion to the material of the outer sealing layer 17 in the finished insulating glazing.
  • figure 6 shows a cross section of a spacer according to the invention comprising a glass fiber reinforced polymer base body 2 and an insulating film 10, which is on the bonded surface 5, the connecting surfaces 6.1. and 6.2 as well as about two thirds of the disc contact surfaces 3.1 and 3.2.
  • the width b of the polymer base body along the gasification interior surface 4 is 12 mm and the overall height g of the polymer base body 2 is 6.5 mm.
  • the structure of the insulating film 10 is as in figure 3 shown.
  • the insulating film 10 is attached via an adhesive 11, in this case a polyurethane hot-melt adhesive.
  • the polyurethane hot-melt adhesive bonds the metal-containing barrier layer 12 pointing to the bonding surface 5 particularly well to the polymer base body 2.
  • the polyurethane hot-melt adhesive is a non-gassing adhesive in order to prevent gases from diffusing into the interior of the pane 19 and from forming there comes from visible precipitation.

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)
  • Laminated Bodies (AREA)

Claims (15)

  1. Elément d'espacement (1) pour vitrage isolant multi-vitres comprenant au moins:
    un corps de base polymère (2) comprenant deux surfaces de contact (3.1, 3.2) de vitres parallèles, une surface intérieure de vitrage (4), une surface de collage (5), où les surfaces de contact (3.1, 3.2) des vitres et la surface de collage (5) sont connectés directement entre elles ou par des surfaces d'accouplement (6.1, 6.2), et un film isolant (10), qui est appliquée au moins sur la surface de collage (5), où le film isolant (10) présente une couche barrière (12) contenant du métal tournée vers la surface de collage (5) avec une épaisseur de 1 µm à 10 µm, et le film isolant (10) comprend une couche polymère (13) avec une épaisseur de 5 µm à 80 µm et un film mince (14) contenant du métal avoisinant la couche polymère (13) avec une épaisseur de 5 nm à 30 nm.
  2. Elément d'espacement (1) selon la revendication 1, où le film isolant (10) est composé de la couche barrière (12) contenant du métal, la couche polymère (13) et le film mince (14) contenant du métal.
  3. Elément d'espacement (1) selon l'une des revendications 1 à 2, où le film mince contenant du métal (14) se trouve à l'extérieur, de telle manière que l'ordre les couches de le film isolant (10) à partir de la surface de collage (5) est la suivante : la couche barrière (12) contenant du métal - le film mince (14) contenant du métal - la couche polymère (13).
  4. Elément d'espacement (1) selon la revendication 1 à 2, où la couche polymère (13) se trouve à l'extérieur, de telle manière que l'ordre les couches de le film isolant (10) à partir de la surface de collage (5) est la suivante: la couche barrière (12) contenant du métal - la couche polymère (13) - le film mince (14) contenant du métal.
  5. Elément d'espacement (1) selon l'une des revendications 1 à 4, où le film isolant (10) couvre entièrement la surface de collage (5) et les surfaces accouplement (6.1, 6.2) et le couvre partiellement les surfaces de contact (3.1, 3.2) des vitres.
  6. Elément d'espacement (1) selon l'une des revendications 1 à 5, où la couche barrière contenant du métal (12) contient de l'aluminium, de l'argent, du cuivre ou des alliages de ceux-ci.
  7. Elément d'espacement (1) selon l'une des revendications 1 à 6, où la couche barrière contenant du métal (12) présente une épaisseur de 5 µm à 10 µm de préférence de 6 µm à 9 µm.
  8. Elément d'espacement (1) selon l'une des revendications 1 à 7, où le film mince contenant du métal (14) présente une épaisseur de 10 nm à 20 nm, de préférence de 14 nm à 16 nm.
  9. Elément d'espacement (1) selon l'une des revendications 1 à 8, où le film isolant (10) est collé à la surface de collage (5) par une colle polyuréthane thermofusible (11)
  10. Elément d'espacement (1) selon l'une des revendications 1 à 9, où la couche polymère (13) présente une épaisseur de 5 µm à 24 µm, de préférence de 12 µm.
  11. Elément d'espacement (1) selon l'une des revendications 1 à 10, où le corps de base polymère (2) contient du polyéthylène (PE), du polycarbonate (PC), du polypropylène (PP), du polystyrène, du polyester, du polyuréthane, du polyméthacrylate de méthyle, du polyacrylate, du polyamide, du téréphtalate de polyéthylène (PET), du téréphtalate de polybutylène (PBT), de préférence de l'acrylonitrile-butadiène-styrène (ABS) de l'acrylonitrile-styrène-acrylate (ASA), de l'acrylonitrile-butadiène-styrène-polycarbonate (ABS/PC), du styrène-acrylonitrile (SAN), du PET/PC, du PBT/PC et/ou des copolymères ou des mélanges de ceux-ci.
  12. Elément d'espacement (1) selon l'une des revendications 1 à 11, où le corps de base polymère (2) est renforcé à la fibre de verre.
  13. Vitrage isolant comprenant au moins deux vitres (15, 16), un élément d'espacement (1) disposé de manière circonférentielle entre les deux vitres (15, 16) dans la zone de bord des vitres (15, 16) selon l'une des revendications 1 à 12, un joint d'étanchéité (18) et une couche d'étanchéité extérieure (17), où
    - la première vitre (15) est disposée contre la première surface de contact des vitres (3.1),
    - la deuxième vitre (16) est disposée contre la deuxième surface de contact des vitres (3.2),
    - le joint d'étanchéité (18) est disposé entre la première vitre (15) et la première surface de contact des vitres (3.1) et la deuxième vitre (16) et la deuxième surface de contact des vitres (3.2), et
    - couche d'étanchéité extérieure (17) est disposée entre la première vitre (15) et la deuxième vitre (16) dans l'espace extérieur du bord (20) adjacent au film isolant (10).
  14. Procédé de fabrication d'un élément d'espacement (1) selon l'une des revendications 1 à 12, où au moins
    - le corps de base polymère (2) est extrudé,
    - le film isolant (10) est fabriqué, où au moins
    a) une couche de polymère (13) est doté d'un film mince contenant du métal (14) à l'aide d'un procédé PVD (dépôt physique par phase vapeur) et
    b) la structure en couches obtenue est laminée avec une couche mince contenant du métal (12) et
    - le film isolant (10) est attaché sur le corps de base polymère (2).
  15. Utilisation d'un élément d'espacement (1) selon l'une des revendications 1 à 12 dans les vitrages multiples, de préférence dans les vitrages isolants.
EP18188188.9A 2014-09-25 2015-09-18 Entretoise pour vitrages isolants Active EP3421709B2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP14186342 2014-09-25
PCT/EP2015/071452 WO2016046081A1 (fr) 2014-09-25 2015-09-18 Entretoise pour vitrages isolants
EP15771064.1A EP3198101B1 (fr) 2014-09-25 2015-09-18 Entretoise pour vitrages isolants

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EP3421709A1 EP3421709A1 (fr) 2019-01-02
EP3421709B1 EP3421709B1 (fr) 2020-01-29
EP3421709B2 true EP3421709B2 (fr) 2022-11-30

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EP (2) EP3421709B2 (fr)
JP (1) JP6479172B2 (fr)
KR (2) KR20170047298A (fr)
CN (1) CN106715819B (fr)
AU (1) AU2015321001B2 (fr)
BR (1) BR112017003684B1 (fr)
CA (1) CA2958613C (fr)
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BR112017003684B1 (pt) 2022-04-05
EP3421709A1 (fr) 2019-01-02
EP3198101A1 (fr) 2017-08-02
JP6479172B2 (ja) 2019-03-06
PL3198101T3 (pl) 2019-01-31
BR112017003684A2 (pt) 2017-12-05
KR20190057430A (ko) 2019-05-28
CN106715819B (zh) 2019-08-13
DK3198101T3 (en) 2018-12-03
EP3421709B1 (fr) 2020-01-29
MX374373B (es) 2025-03-06
CA2958613A1 (fr) 2016-03-31
WO2016046081A1 (fr) 2016-03-31
RU2643977C1 (ru) 2018-02-06
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JP2017534779A (ja) 2017-11-24
US20170298680A1 (en) 2017-10-19
CA2958613C (fr) 2019-05-07
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AU2015321001B2 (en) 2018-10-18
KR102056036B1 (ko) 2019-12-13

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