WO2024251444A1 - Vitre composite dotée d'une couche d'aérogel et d'une isolation sous vide - Google Patents

Vitre composite dotée d'une couche d'aérogel et d'une isolation sous vide Download PDF

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Publication number
WO2024251444A1
WO2024251444A1 PCT/EP2024/062421 EP2024062421W WO2024251444A1 WO 2024251444 A1 WO2024251444 A1 WO 2024251444A1 EP 2024062421 W EP2024062421 W EP 2024062421W WO 2024251444 A1 WO2024251444 A1 WO 2024251444A1
Authority
WO
WIPO (PCT)
Prior art keywords
pane
layer
composite
aerogel
vacuum insulating
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.)
Ceased
Application number
PCT/EP2024/062421
Other languages
German (de)
English (en)
Inventor
Yahya MOTEMANI SHARABIANI
Siyamak MEMAR JAVID
Marine ZILLER
Sebastian ARENDT
Valentin SCHULZ
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Saint Gobain Glass France SAS
Compagnie de Saint Gobain SA
Original Assignee
Saint Gobain Glass France SAS
Compagnie de Saint Gobain SA
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
Application filed by Saint Gobain Glass France SAS, Compagnie de Saint Gobain SA filed Critical Saint Gobain Glass France SAS
Publication of WO2024251444A1 publication Critical patent/WO2024251444A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B80/00—Architectural or constructional elements improving the thermal performance of buildings
    • Y02B80/22—Glazing, e.g. vaccum glazing

Definitions

  • the invention relates to a composite pane equipped with an aerogel layer and a vacuum insulating glazing, and to the use thereof.
  • the energy input through the glazing is a problem.
  • the total solar energy radiated in is made up of the energy radiated directly and the energy radiated indirectly as thermal radiation after the pane components have heated up. This is typically characterized as a TTS value. If the interior of the building or vehicle heats up too much, this must be countered with air conditioning, which is not in the spirit of energy-saving operation. Glass manufacturers therefore endeavor to minimize the energy input through the glazing as much as possible.
  • VOG vacuum insulating glazing
  • Two panes of glass are spaced apart from one another by spacers, with the space between the panes being evacuated.
  • Such glazing for buildings is known, for example, from EP1978199A1 and WG9804802A1.
  • EP3878827A1 discloses a vehicle window that is designed as vacuum insulating glazing.
  • Aerogels are highly porous solids which are known to have very low thermal conductivity and heat-insulating properties.
  • WO2012154602A1 discloses an insulating glazing with an aerogel layer.
  • US2010146880A1 discloses a building roof pane made up of two panes of glass and an aerogel layer in between.
  • EP3381881A1 discloses a composite pane made up of two panes of glass and an intermediate thermally insulating layer which can be designed as an aerogel layer.
  • a type of insulating glazing is known from CN102839893A and CN208267668U, in which two panes of glass are connected to each other via a spacer. The space between them is filled with aerogel and evacuated.
  • the present invention is based on the object of providing an improved composite pane which has a low heat input and ensures a high level of thermal comfort.
  • the composite pane according to the invention comprises an outer pane and an inner pane, which are connected to one another in a planar manner.
  • An aerogel layer is embedded in the composite pane between the outer pane and the inner pane.
  • the composite pane also has vacuum insulating glazing.
  • the vacuum insulating glazing comprises an outer pane and an inner pane, which are spaced apart from one another by means of spacers, so that a gap is formed between the outer pane and the inner pane.
  • the outer pane of the vacuum insulating glazing faces the outer pane of the composite pane, the inner pane faces away from the outer pane. The gap between the outer pane and the inner pane is evacuated.
  • the invention can basically be implemented in two different variants.
  • a first variant also referred to as “variant (i)”
  • the vacuum insulating glazing is embedded in the composite pane between the outer pane and the inner pane.
  • the inner pane of the composite pane also forms the inner pane of the vacuum insulating glazing.
  • the composite pane according to the invention has excellent thermal insulation properties.
  • the heat introduced into an interior through the composite pane is drastically reduced.
  • the aerogel layer also has acoustic insulating properties, which is advantageous for shielding from disturbing external noises.
  • the aerogel layer and the vacuum insulating glazing are very light, so that the total weight of the composite pane is also comparatively low.
  • the outer pane and the inner pane each have an outside surface and an inside surface and a circumferential side edge surface running between them.
  • the outside surface refers to the main surface which is intended to face the outside environment and the sun in the installed position.
  • the inside surface refers to the main surface which is intended to face the interior in the installed position.
  • the inside surface of the outside pane and the outside surface of the inner pane face each other and are connected to each other.
  • the outer pane of the vacuum insulating glazing When installed, the outer pane of the vacuum insulating glazing also faces the outside environment and the outer pane.
  • the inner pane of the vacuum insulating glazing faces the interior and, in variant (i), the inner pane.
  • the composite pane according to the invention is in particular a window pane, door pane or glass facade of a building or a vehicle.
  • the composite pane is preferably a window pane of a vehicle (vehicle pane), in particular a vehicle roof pane.
  • the vacuum insulating glazing has a smaller distance to the outer pane than the aerogel layer.
  • the composite pane preferably comprises, in the order given:
  • the vacuum insulating glazing has a greater distance to the outer pane than the aerogel layer.
  • the composite pane comprises
  • the outer pane and the inner pane are connected to one another via an intermediate layer, with both the aerogel layer and the vacuum insulating glazing being embedded in the intermediate layer.
  • the aerogel layer and the vacuum insulating glazing each form a layer of the intermediate layer.
  • the aerogel layer is arranged between the outer pane and the vacuum insulating glazing or between the vacuum insulating glazing and the inner pane.
  • the composite pane preferably comprises, in the order given:
  • the outer pane and the inner pane can optionally be thermally or chemically tempered, partially tempered or not tempered independently of one another.
  • the said connecting layers have the task of adhesively connecting the components of the composite pane between which they are arranged.
  • the connecting layers are preferably designed as thermoplastic layers.
  • the thermoplastic layers can alternatively also be referred to as thermoplastic layers.
  • the connecting layers can alternatively be designed as adhesive layers, for example.
  • So-called optically clear adhesives (OCA) are preferred, especially when the composite pane is intended as a glazing element that allows visibility (for example as a window pane).
  • OCAs are known as such to those skilled in the art. They are characterized in particular by high optical quality. They are particularly common where high optical quality is necessary so that the adhesive layer is virtually invisible, for example in displays or touch panels.
  • Optically clear adhesives are characterized in particular by high light transmission and the fact that low-distortion visibility is possible.
  • the optically clear adhesive is preferably a 2-component polyurethane adhesive, a 1-component acrylate adhesive, a 1-component silicone adhesive or a 1-component acrylate hybrid adhesive.
  • the outer pane and the inner pane are preferably glass panes, particularly preferably made of soda-lime glass, as is usual for window panes.
  • One or both of the panes can, in principle, also be made of other types of glass, for example quartz glass, borosilicate glass or aluminosilicate glass, or of rigid clear plastics, for example polycarbonate or polymethyl methacrylate.
  • the thicknesses of the outer pane and the inner pane are, independently of one another, preferably from 0.5 mm to 5 mm, particularly preferably from 1 mm to 3 mm. Plastic laminates can also be used as the outer pane and/or inner pane.
  • the composite pane according to the invention is not used as a glazing element, but for example as a facade panel of a building or part of a vehicle body.
  • the outer pane and/or the inner pane can also be designed as a metal plate, for example.
  • the outer pane is also the pane facing the external environment of the building or vehicle.
  • the composite pane is equipped with vacuum insulating glazing.
  • the vacuum insulating glazing comprises an outer pane and an inner pane, which are spaced apart from one another by spacers, so that a gap is formed between the outer pane and the inner pane.
  • the outer pane and the inner pane have a thickness of, for example, 0.3 mm to 5 mm, preferably from 0.3 mm to 3 mm, particularly preferably from 0.5 mm to 2 mm, very particularly preferably from 0.5 mm to 1.5 mm, in particular from 0.5 mm to 1 mm.
  • the outer and inner panes are preferably thinner than the outer pane and the inner pane.
  • the outer pane has a thickness of, for example, 0.3 mm to 5 mm, preferably 0.3 mm to 3 mm, particularly preferably 0.5 mm to 2 mm, very particularly preferably 0.5 mm to 1.5 mm, in particular 0.5 mm to 1 mm.
  • the inner pane is identical to the inner pane of the composite pane and the preferred thicknesses given above for the inner pane apply.
  • the outer pane and the inner pane are preferably made of glass. Soda-lime glass can also be used.
  • very thin outer and inner panes (for example with thicknesses of 0.5 mm to 1 mm) can also be made of aluminosilicate glass, which is preferably chemically tempered.
  • the gap between the outer and inner panes preferably has a thickness of 0.1 mm to 1 mm, particularly preferably 0.2 mm to 0.5 mm. This achieves good thermal insulation without the thickness of the composite pane having to be increased too much.
  • the thickness of the gap corresponds to the distance between the facing surfaces of the outer and inner panes.
  • the intermediate space is evacuated, whereby the outer pane and the inner pane spaced apart from it form vacuum insulating glazing.
  • the pressure in the intermediate space is preferably at most 100 mbar, particularly preferably at most 10 mbar.
  • the pressure can be, for example, from 0.01 mbar to 100 mbar, preferably from 0.1 mbar to 10 mbar.
  • the vacuum insulating glazing has spacers which ensure that the outer and inner panes do not deform despite the negative pressure between them.
  • the distance between the outer and inner panes is preferably kept constant by the spacers so that the outer and inner panes are arranged parallel to one another.
  • the spacer means preferably comprise a plurality of spacer columns.
  • the spacer columns are distributed (preferably evenly) over the surface of the outer and inner panes.
  • the number of spacer columns and their distance from one another depends on the thickness of the panes and the negative pressure prevailing in the space between them. The thinner the panes are (and the lower the pressure in the space between them), the more likely they are to deform, which requires a larger number of spacer columns.
  • the spacer columns are preferably transparent so as not to significantly impair visibility through the laminated pane. They are preferably made of glass or plastic.
  • the spacer means particularly preferably also comprise a circumferential spacer in an edge region between the outer pane and the inner pane.
  • the circumferential spacer runs circumferentially in an edge region between the outer and inner panes.
  • the evacuated space is limited by the outer pane, the inner pane and the circumferential spacer.
  • the spacer is made, for example, from glass, plastic, metal or a metal alloy.
  • the vacuum insulating glazing preferably has a gas-tight edge seal.
  • the surrounding spacer if present can itself act as an edge seal or the vacuum insulating glazing can be equipped with an additional edge seal, for example made of glass, a metal or a metal alloy (for example stainless steel, silver or copper) or a gas-tight plastic.
  • the thickness of the aerogel layer can be selected according to the requirements of the specific application.
  • the thermal conductivity of the aerogel (which in turn depends on the material, density and porosity), the heat absorption of the composite pane (which in turn depends on the other components of the composite pane, in particular the material, thickness and degree of tint of the outer pane, the inner pane and the connecting layers), the desired heat input (i.e. the desired TTS value, the total radiated solar energy) play a particularly important role. and the thermal insulation effect of the vacuum insulating glazing.
  • the aerogel layer preferably has a thickness in the range of 0.1 mm to 10 mm, particularly preferably from 0.2 mm to 8 mm, in particular from 0.5 mm to 6 mm. This achieves good results in typical applications.
  • the aerogel layer most preferably has a thickness of 1 mm to 4 mm. In typical applications, good thermal insulation is achieved even with such a small thickness of the aerogel layer, because the thermal insulation is further improved by the vacuum insulating glazing. This means that composite panes with advantageously thin aerogel layers can be produced.
  • aerogels are not gels, but highly porous solids.
  • the name comes from the fact that aerogels are typically made from gels, whereby the liquid component of the gel is replaced by a gas without the gel structure collapsing, for example through supercritical drying or freeze-drying.
  • aerogels consist of a branching of particle chains (dendritic structure) with very many spaces (pores), particularly in the form of open pores.
  • the particle chains have contact points with each other, so that the aerogel can be viewed as a stable, sponge-like network.
  • the particle chains themselves often result from the fusion of, for example, spherical particles.
  • a very high volume proportion of the aerogels consists of pores, particularly open pores.
  • Aerogels therefore have a very low density.
  • the aerogel layer according to the invention is therefore lightweight, so that the weight of the composite pane is not significantly increased even by comparatively thick aerogel layers. Aerogels can also have a high optical transparency, which can be particularly advantageous for applications in glazing. Aerogels can be produced using sol-gel processes, for example.
  • the aerogel layer according to the invention can also be referred to as an aerogel layer or as a layer made of an aerogel or based on an aerogel.
  • porosity refers to the proportion of the volume of the pores in relation to the total volume of the aerogel.
  • the aerogel layer according to the invention is preferably made of an aerogel or is based on an aerogel which has a porosity of 50% to 99.98%, particularly preferably 80% to 99%, particularly preferably from 85% to 98%.
  • the porosity can be determined by gas sorption measurement, in particular with carbon dioxide (CO2) as the measuring gas at a temperature of 273 K.
  • the pore size of the aerogel is preferably from 1 nm to 50 nm, particularly preferably from 10 nm to 40 nm. This refers in particular to the diameter of the typically approximately spherical pores.
  • the pore size can also be determined using the gas sorption measurement mentioned.
  • the density of the aerogel is preferably from 0.16 mg/cm 3 to 500 mg/cm 3 , particularly preferably from 10 mg/cm 3 to 300 mg/cm 3 . This means the bulk density based on the volume including the pore spaces, whereby the air in the pores is not included in the mass.
  • the particles that make up the network of particle chains typically have a size of 1 nm to 10 nm.
  • Aerogels can be formed from various materials (material of the particle chains).
  • the aerogel of the aerogel layer according to the invention is preferably made of silicate, a polymer, carbon, cellulose or a metal oxide.
  • all polymers and metal oxides are suitable. Examples are polyimide for a polymer and aluminum oxide, titanium oxide, zirconium oxide (all transparent and white or bluish), iron oxide (opaque, red or yellow), chromium oxide (opaque, green or blue) and vanadium oxide (opaque, olive green) for metal oxides.
  • silicate aerosols do not have the chemical composition of a silicate, but rather SiO(OH) y (OR) z , where R is an organic residue and the parameters y and z depend on the manufacturing process. Nevertheless, they are generally referred to as such and the term silicate is also used accordingly in the context of the present invention.
  • silicate aerogel is also common (i.e. SiO2 aerogel).
  • silicate aerogels, polymer aerogels and cellulose aerogels are particularly preferred, in particular silicate aerogels and polymer aerogels. These aerogels are well researched and are already commercially available in large numbers.
  • the aerogel layer according to the invention can be structurally designed differently and integrated into the composite pane, in particular - as a so-called blanket or mat; this is understood to mean a composite material made of an aerogel (in particular silicate aerogel) and a material which influences the mechanical properties; the said material is in particular a fibre material (for example glass fibres); blankets are flexible and can be provided on rolls, for example; such a mat can be made of an aerogel felt (in particular silicate aerogel felt), for example;
  • films are flexible and can also be provided on rolls, for example; they can be made from or based on a polymer aerogel, which can optionally have inclusions; an aerogel film can comprise a carrier film (for example made of PET or polyimide) on which an aerogel layer is arranged;
  • the aerogel layer is preferably transparent or translucent, especially when the composite pane is a glazing intended for viewing through.
  • applications with an opaque aerogel layer are also conceivable if visibility through the pane is not desired.
  • a vehicle roof pane can also be completely opaque.
  • An opaque aerogel layer is understood to be a layer through which no one can see through.
  • An opaque aerogel layer preferably has a light transmission of less than 5%, particularly preferably less than 2%, in particular 0%.
  • a transparent aerogel layer is understood to be a layer through which one can see through, so that the viewer can see objects behind it. The aerogel layer can, however, be tinted to reduce the light transmission.
  • a transparent aerogel layer preferably has a light transmission of more than 5%, particularly preferably more than 10%, very particularly preferably more than 50%, in particular more than 70%.
  • a translucent aerogel layer is understood to be a layer through which light passes, but which is strongly scattered, so that the viewer cannot see objects behind it clearly (at most vaguely).
  • the composite pane preferably has (at least) one transparent or translucent area, which is referred to as a see-through area in the sense of the invention.
  • the composite pane often also has an opaque masking area. This is particularly common in vehicle windows, with the masking area being arranged in a peripheral edge area of the composite pane and surrounding the see-through area like a frame.
  • the masking area is typically formed by an opaque cover print on the outer pane and/or the inner pane, preferably on the interior surface of the outer pane.
  • An enamel printing paste which contains glass frits and a pigment, in particular black pigment, is printed onto the surface, for example using a screen printing process, and then fired.
  • a masking area can also be formed by making a thermoplastic layer opaque in some areas or by incorporating an opaque film or plate in one area of the composite pane.
  • the aerogel layer according to the invention preferably completely covers at least the see-through area of the composite pane. It can cover the entire composite pane and extend to its side edges. However, if the composite pane has a masking area, no aerogel layer has to be provided there. It is possible, for example, for the aerogel layer to be arranged in a section of a thermoplastic layer, which surrounds it in a frame-like manner, with the frame-like thermoplastic layer preferably being arranged in a peripheral masking area.
  • the vacuum insulating glazing according to the invention also preferably completely covers at least the view-through area of the composite pane. It can cover the entire composite pane and extend to its side edges.
  • the vacuum insulating glazing it is also possible here for the vacuum insulating glazing to be arranged in a section of a thermoplastic layer, which surrounds it in a frame-like manner.
  • the frame-like thermoplastic layer is in turn preferably arranged in a peripheral masking area.
  • Emissivity-reducing coatings are also known as heat radiation reflecting coatings, low emissivity coatings or LowE coatings (low emissivity). Emissivity is the measure that indicates how much heat radiation the In the installed position, the pane emits heat into the interior compared to an ideal heat radiator (a black body). Emissivity-reducing coatings have the function of preventing heat from radiating into the interior (IR components of solar radiation and in particular the thermal radiation of the pane itself) and also preventing heat from radiating out of the interior.
  • the emissivity-reducing coatings can at least partially reflect the thermal radiation emitted by the entire pane towards the interior. At low outside temperatures, they can reflect the thermal radiation emitted from the interior and thus reduce the effect of the cold pane as a heat sink. The emissivity-reducing coating further increases thermal comfort in the interior.
  • the emissivity-reducing coating is typically a transparent stack of thin layers.
  • the emissivity-reducing coating preferably has at least one, particularly preferably exactly one electrically conductive layer, which provides the IR-reflecting properties.
  • the conductive layer is preferably based on a transparent conductive oxide (TCO), in particular indium tin oxide (ITO), alternatively indium zinc mixed oxide (IZO), gallium-doped tin oxide (GZO), fluorine-doped tin oxide (FTO, SnO2:F), antimony-doped tin oxide (ATO, SnO2:Sb) or niobium-doped titanium oxide (TiO2:Nb).
  • TCO transparent conductive oxide
  • ITO indium tin oxide
  • IZO indium zinc mixed oxide
  • GZO gallium-doped tin oxide
  • FTO, SnO2:F fluorine-doped tin oxide
  • the coating typically comprises dielectric layers (e.g. based on silicon oxide or nitride), which serve in particular to optimize the optical properties (e.g. light transmission) or serve as barrier layers to regulate oxygen diffusion during the deposition of the coating.
  • dielectric layers e.g. based on silicon oxide or nitride
  • the composite pane can also have several aerogel layers and/or several vacuum insulating glazings. However, in terms of a simple structure and a low overall thickness, it is preferred that the composite pane has only one aerogel layer and only one vacuum insulating glazing.
  • the laminated pane can be clear or have a tint or coloration. Tints and colors can be achieved by tinting or coloring the outer pane, the inner pane, the bonding layers (in particular the thermoplastic layers), the inner pane, the outer pane and/or the aerogel layer.
  • the laminated pane can be flat or cylindrical or spherically curved. Spherically curved laminated panes are particularly common for vehicle windows, while flat laminated panes are used for building glazing.
  • the composite pane preferably does not comprise any large-area electrical units. This is advantageous in terms of a simple structure and a low overall thickness.
  • the composite pane particularly preferably does not comprise any photovoltaic components (such as solar cells).
  • the composite pane preferably has a transparent see-through area.
  • the composite pane is preferably a vehicle roof pane.
  • the composite pane can be manufactured by stacking the individual layers in the intended order to form a stack of layers and then laminating them together.
  • Known processes can be used for this, for example autoclave processes, vacuum bag processes, vacuum ring processes, calender processes, vacuum laminators or combinations thereof.
  • the connection between the outer pane and the inner pane is usually carried out under the influence of heat, vacuum and/or pressure.
  • the invention also includes the use of a composite pane according to the invention in buildings or in means of transport for traffic on land, in the air or on water, in particular vehicle panes or building glazing.
  • the composite pane is particularly preferably used as a vehicle roof pane, in particular as a roof pane of a passenger car or truck.
  • Fig. 1 is a plan view of an embodiment of the composite pane according to the invention.
  • Fig. 2 is a cross-section along X-X' through the composite pane of Figure 1
  • Fig. 3 is a cross-section along X-X' through a further embodiment of the composite pane according to the invention.
  • Fig. 4 shows a cross section along X-X’ through a further embodiment of the composite pane according to the invention.
  • Figure 1 and Figure 2 each show a detail of a first embodiment of the composite pane according to the invention.
  • the composite pane is a vehicle roof pane. It has an opaque masking area M which is arranged all the way around the edge area and surrounds a central transparent see-through area D in a frame-like manner.
  • the composite pane has a multi-layer structure which includes the following structural components in the order given:
  • thermoplastic layer 3a a first thermoplastic layer 3a
  • the outer pane 1 faces the outside environment of the vehicle. It is made of soda-lime glass and has a thickness of, for example, 2.1 mm.
  • An opaque cover print 8 is applied to the interior surface of the outer pane 1 in a frame-like edge area, which forms the opaque masking area M.
  • the thermoplastic layers 3a, 3b, 3c are each formed as 0.76 mm thick PVB films.
  • the vacuum insulating glazing 5 is formed from an outer pane 5a and an inner pane 5b, which are connected to one another and kept at a distance by a surrounding spacer 5d in the edge area and by spacer columns 5e evenly distributed over the surface. This creates a gap 5c between the outer pane 5a and the inner pane 5b, which is evacuated.
  • the outer pane 5a and the inner pane 5b are each made of chemically tempered aluminosilicate glass and each have a thickness of 0.7 mm.
  • the gap 5c has a thickness of 0.3 mm.
  • the spacer columns 5e are made of glass or a transparent plastic.
  • the surrounding spacer 5d is made of a plastic. In addition, the surrounding spacer 5d is equipped with an edge seal (not shown) which seals the gap 5c in a gas-tight manner.
  • the aerogel layer 6 has a thickness of 2 mm, for example. It is designed as a flexible film made of a transparent or translucent polymer aerogel.
  • the inner pane 2 faces the vehicle interior. It is made of soda-lime glass and has a thickness of, for example, 1.6 mm.
  • the vacuum insulating glazing 5 and the aerogel layer 6 each have thermally insulating properties.
  • the combination of the two advantageously reduces the energy input through the composite pane into the vehicle interior, which is based in particular on IR components of the sun's radiation and thermal radiation from the heated pane.
  • the vacuum insulating glazing 5 and the aerogel layer 6 each have a low weight, so that the total weight of the composite pane also remains low.
  • the aerogel layer 6 in particular also has acoustically insulating properties, so that disturbing external noises are shielded.
  • An emissivity-reducing coating 9 is arranged on the interior surface of the inner pane 2. Such coatings are also known as LowE coatings. The emissivity-reducing coating 9 has reflective properties in the middle IR range. The emissivity-reducing coating 9 further reduces the energy input through the composite pane.
  • the vacuum insulating glazing 5 and the aerogel layer 6 extend to the side edges of the composite pane.
  • the aerogel layer 6 can also have an edge seal, for example in the form of a polymer adhesive tape.
  • FIG 3 shows a cross-section through a further embodiment of the composite pane according to the invention.
  • the composite pane is constructed from the same elements as in the embodiment according to Figure 2. The only difference is that the order of the vacuum insulating glazing 5 and the aerogel layer 6 is reversed.
  • the composite pane comprises in the following order:
  • Figure 4 shows a cross section through a further embodiment of the composite pane according to the invention. It differs from the above embodiments of Figures 2 and 3 in that the vacuum insulating glazing 5 is not arranged between the outer pane 1 and a separate inner pane 2. Instead, the inner pane 2 is part of the vacuum insulating glazing 5 and also forms its inner pane 5b.
  • the composite pane comprises in the following order:
  • thermoplastic layer 3a a first thermoplastic layer 3a
  • the outer pane 1 with the cover print 8, the first thermoplastic layer 3a, the aerogel layer 6 and the second thermoplastic layer 3b are designed in the same way as in the embodiment of Figure 2.
  • the outer pane 5a of the vacuum insulating glazing 5 is again a chemically toughened pane made of aluminosilicate glass with a thickness of 0.7 mm. It is connected to the inner pane 2 via a circumferential spacer 5d and via spacer columns 5e, which is also the inner pane 5b of the vacuum insulating glazing 5.
  • the inner pane consists of thermally toughened soda-lime glass and has a thickness of 1.6 mm.
  • the intermediate space 5c has a thickness of 0.3 mm and is evacuated.
  • the interior surface of the inner pane 2 is again provided with an emissivity-reducing coating 9.

Landscapes

  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Joining Of Glass To Other Materials (AREA)
  • Securing Of Glass Panes Or The Like (AREA)

Abstract

L'invention concerne une vitre composite comprenant une vitre extérieure (1) et une vitre intérieure (2) qui sont raccordées ensemble à plat. Une couche d'aérogel (6) est incorporée dans la vitre composite entre la vitre extérieure (1) et la vitre intérieure (2), et la vitre composite comporte un vitrage isolant sous vide (5) qui comprend une vitre externe (5a) qui fait face à la vitre extérieure (1) et une vitre interne (5b) qui est disposée à distance de la vitre externe (5a) par l'intermédiaire d'entretoises (5d, 5e), l'espace intermédiaire (5c) entre la vitre externe (5a) et la vitre interne (5b) étant sous vide, et (i) le vitrage isolant sous vide (5) étant incorporé dans la vitre composite entre la vitre extérieure (1) et la vitre intérieure (2) ou (ii) la vitre intérieure (2) de la vitre composite formant la vitre interne (5b) du vitrage isolant sous vide (5).
PCT/EP2024/062421 2023-06-05 2024-05-06 Vitre composite dotée d'une couche d'aérogel et d'une isolation sous vide Ceased WO2024251444A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP23177143.7 2023-06-05
EP23177143 2023-06-05

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WO2024251444A1 true WO2024251444A1 (fr) 2024-12-12

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DE (1) DE202024002545U1 (fr)
WO (1) WO2024251444A1 (fr)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998004802A1 (fr) 1996-07-31 1998-02-05 Saint-Gobain Vitrage Procede pour realiser le vide entre deux feuilles de verre et vitrage isolant
WO2007075298A2 (fr) * 2005-12-27 2007-07-05 Guardian Industries Corp. Fenetre a valeur r elevee
EP1978199A1 (fr) 2007-04-05 2008-10-08 Grenzebach Maschinenbau GmbH Composant en verre isolant du vide tout comme ses procédé et dispositif de fabrication
US20100146880A1 (en) 2008-12-16 2010-06-17 Vtech Patents Llc. Insulated skylight assembly and method of making same
WO2012154602A1 (fr) 2011-05-06 2012-11-15 Showers Robert James Système de film de fenêtre en aérogel
CN102839893A (zh) 2012-08-28 2012-12-26 青岛科瑞新型环保材料有限公司 透明气凝胶真空玻璃及其制作方法
EP3381881A1 (fr) 2015-11-26 2018-10-03 AGC Inc. Verre feuilleté, verre à vitres pour des automobiles et verre à vitres pour des bâtiments
CN208267668U (zh) 2018-05-30 2018-12-21 广东金刚玻璃科技股份有限公司 一种抗菌型低辐射真空保温玻璃
EP3878827A1 (fr) 2018-11-05 2021-09-15 Panasonic Intellectual Property Management Co., Ltd. Unité panneau de verre et procédé de production d'unité panneau de verre

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998004802A1 (fr) 1996-07-31 1998-02-05 Saint-Gobain Vitrage Procede pour realiser le vide entre deux feuilles de verre et vitrage isolant
WO2007075298A2 (fr) * 2005-12-27 2007-07-05 Guardian Industries Corp. Fenetre a valeur r elevee
EP1978199A1 (fr) 2007-04-05 2008-10-08 Grenzebach Maschinenbau GmbH Composant en verre isolant du vide tout comme ses procédé et dispositif de fabrication
US20100146880A1 (en) 2008-12-16 2010-06-17 Vtech Patents Llc. Insulated skylight assembly and method of making same
WO2012154602A1 (fr) 2011-05-06 2012-11-15 Showers Robert James Système de film de fenêtre en aérogel
CN102839893A (zh) 2012-08-28 2012-12-26 青岛科瑞新型环保材料有限公司 透明气凝胶真空玻璃及其制作方法
EP3381881A1 (fr) 2015-11-26 2018-10-03 AGC Inc. Verre feuilleté, verre à vitres pour des automobiles et verre à vitres pour des bâtiments
CN208267668U (zh) 2018-05-30 2018-12-21 广东金刚玻璃科技股份有限公司 一种抗菌型低辐射真空保温玻璃
EP3878827A1 (fr) 2018-11-05 2021-09-15 Panasonic Intellectual Property Management Co., Ltd. Unité panneau de verre et procédé de production d'unité panneau de verre

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