EP1140722A1 - Panneau de vitrage - Google Patents

Panneau de vitrage

Info

Publication number
EP1140722A1
EP1140722A1 EP99967971A EP99967971A EP1140722A1 EP 1140722 A1 EP1140722 A1 EP 1140722A1 EP 99967971 A EP99967971 A EP 99967971A EP 99967971 A EP99967971 A EP 99967971A EP 1140722 A1 EP1140722 A1 EP 1140722A1
Authority
EP
European Patent Office
Prior art keywords
glazing panel
layer
glass substrate
pren
glazing
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.)
Withdrawn
Application number
EP99967971A
Other languages
German (de)
English (en)
Inventor
Pierre Glaverbel GOELFF
Daniel Glaverbel DECROUPET
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.)
AGC Glass Europe SA
Original Assignee
Glaverbel Belgium 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 Glaverbel Belgium SA filed Critical Glaverbel Belgium SA
Priority to EP06118440A priority Critical patent/EP1752426A3/fr
Priority to EP99967971A priority patent/EP1140722A1/fr
Publication of EP1140722A1 publication Critical patent/EP1140722A1/fr
Withdrawn legal-status Critical Current

Links

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
    • E06B5/00—Doors, windows, or like closures for special purposes; Border constructions therefor
    • E06B5/10—Doors, windows, or like closures for special purposes; Border constructions therefor for protection against air-raid or other war-like action; for other protective purposes
    • E06B5/16—Fireproof doors or similar closures; Adaptations of fixed constructions therefor
    • E06B5/165—Fireproof windows
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
    • C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
    • C03C17/36—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
    • C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
    • C03C17/36—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal
    • C03C17/3602—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer
    • C03C17/3618—Coatings of type glass/inorganic compound/other inorganic layers, at least one layer being metallic
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
    • C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
    • C03C17/36—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal
    • C03C17/3602—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer
    • C03C17/3626—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer one layer at least containing a nitride, oxynitride, boronitride or carbonitride
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
    • C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
    • C03C17/36—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal
    • C03C17/3602—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer
    • C03C17/3639—Multilayers containing at least two functional metal layers
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
    • C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
    • C03C17/36—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal
    • C03C17/3602—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer
    • C03C17/3681—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer the multilayer coating being used in glazing, e.g. windows or windscreens
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C2217/00—Coatings on glass
    • C03C2217/70—Properties of coatings
    • C03C2217/73—Anti-reflective coatings with specific characteristics

Definitions

  • This invention relates to glazing panels and particularly, but not exclusively, to glazing panels which are intended to provide a degree of fire protection or fire screening.
  • a fire screening glazing panel preferably fulfils a number of separate functions. These may include:
  • the present invention provides a glazing panel as defined in Claim 1.
  • the multiple sheet glazing panel may have a fire resistance according to European Standards prEN 1363-1, prEN 1364-1 and/or prEN1363-2 (Final drafts of October 1998) of greater than or equal to 70, 75, 80, 90 or 100 minutes.
  • the second glass substrate also carries at least one coating layer; this may be a coating layer which is the same as the coating layer carried by the first glass substrate.
  • the invention may allow a glazing panel having, for example, dimensions of at least 0.9m by 2.2m, or 0.9m by 2.4m, or lm by 2m, or 1.2m by 2m, or 1.2m by 2.2m, or 1.2m by 2.4 m to have the defined fire resistance.
  • the present invention provides a glazing panel as defined in Claim 2.
  • the two glazing panels are arranged side by side for example with their edges abutting so as to permit the radiation of the glazing panel per se to be measured rather than measuring the radiation of the glazing panel with the surrounding masonry.
  • the two glazing panels may be separated by a mullion for measuring the radiation.
  • the second glass substrate also carries at least one coating layer; this may be a coating layer which is the same as the coating layer carried by the first glass substrate.
  • the multiple sheet glazing panel may have a thermal radiation after
  • the multiple sheet glazing panel may have a thermal radiation after 90 minutes of a fire test according to European Standards prEN 1363-1, prEN 1364-1 and/or prEN1363-2 (Final drafts of October 1998) of less than or equal to 15, 12, 10, 9, 8, 7, 6 or 5 kW/m 2 .
  • the invention may allow a glazing panel having, for example, dimensions of at least 0.9m by 2.2m, or 0.9m by 2.4m, or 1m by 2m, or 1.2m by 2m, or 1.2m by 2.2m, or 1.2m by 2.4 m to have the defined thermal radiation.
  • One or each of the glass substrates may be any one or each of the glass substrates.
  • a fire resistance glass for example, a borosilicate glass
  • the present invention provides a glazing panel as defined in Claim 3.
  • the infra-red reflectance of the glazing panel in the band of wavelengths 1-10 microns once the glazing panel has been subjected to a heating cycle equivalent to that defined as Heat Cycle A herein may be at least 65%, 70% 75% or 80%.
  • Heating Cycle A (defined further on) is intended to approximate a fire test.
  • the present invention provides a glazing panel as defined in Claim 4.
  • the infra-red reflectance of the glazing panel in the band of wavelengths 1-10 microns once the glazing panel has been subjected to a heating cycle equivalent to that defined as Heat Cycle A herein may be at least 70%, 75%, 80%, 85% or 90%.
  • the use of at least two spaced infra-red reflecting layers may be used to improve the reflectance of the glazing panel in the defined band of wavelengths.
  • the use of at least three spaced infra-red reflecting layers may result in a reflectance in the defined band of wavelengths of at least 90% or 95%.
  • coating layers are commonly applied to glazing panels, for example to increase the selectivity in architectural and automotive applications, previous such coatings have not be suitable for conferring the defined properties on a glazing panel to provide such significant fire screening properties.
  • One reason for this is that such coatings have a tendency to loose their heat screening properties when exposed to fire conditions.
  • the coating layer may be formed pyrolyticly on the glass substrate or by a vacuum technique, for example, by sputtering.
  • the infra-red reflecting material is preferably silver or an alloy containing silver.
  • the at least one coating layer may be arranged on one side only of the glazing panel.
  • a coating layer or coating stack may be arranged on each side of the glazing panel.
  • the coating on one side of the glazing panel may be formed pyrolyticly on the glass substrate and that on the other side may be formed by a vacuum technique, for example, by sputtering. This may provide for a convenient manufacturing process.
  • Two or more monolithic glazing panels may be arranged together as a multiple sheet glazing panel.
  • a double glazing unit may be arranged having a first coated glazing sheet with a coating in position 2 spaced from a second coated glazing sheet with a coating in position 3.
  • the surfaces of a multiple sheet glazing panel are commonly referred to as position 1 which is the external face of the external sheet of glass, position 2 which is the internal face of the external sheet of glass, position 3 which is the internal face of the internal sheet of glass and position 4 which is the external face of the internal sheet of glass)
  • Such positioning may: • protect the coatings from abrasion and exposure to the atmosphere (this may be important if the coatings are sputtered coating but is generally less important for pyrolytic coatings)
  • the present invention provides a glazing panel as defined in Claim 5.
  • the emissivity of the glazing panel once the glazing panel has been subjected to a heating cycle equivalent to that defined as Heat Cycle A herein may be less than or equal to 0.2 or 0.15.
  • the inventors have realised • that the defined properties can be conferred on a glazing panel by means of a coating layer
  • Heating Cycle A (defined further on) is intended to approximate a fire test.
  • the present invention provides a glazing panel as defined in Claim 6.
  • the emissivity of the glazing panel once the glazing panel has been subjected to a heating cycle equivalent to that defined as Heat Cycle A herein may be less than or equal to 0.1 or 0.05.
  • the use of at least two spaced infra-red reflecting layers may be used to improve the emissivity of the glazing panel.
  • the present invention provides glazing panels as defined in Claims 7, 8 and 9.
  • the combination of layers defined provides an advantageous combination of properties.
  • the antireflective layers must not only carry out their principal role of preventing excessive reflection in the visible portion of the spectrum but must also for example, be compatible with the other layers in the coating stack, be mechanically and chemically resistant and be suited to production on an industrial scale.
  • the coating layers may be deposited using a vacuum technique, for example by sputtering.
  • thermal stability if the glazing panel is subjected to fire conditions may reduce degradation of the infra red reflecting layer when compared with comparable structures using, for example, known ZnO or Sn0 2 antireflective layers.
  • the nitride layer may block migration and/or diffusion of oxygen and/or ions through the coating stack and the specified mixed oxide layer may both enhance this and may be thermally more stable than other known oxides.
  • the antireflective layer according to the present invention may be deposited more easily and with more control than, for example, A1 2 0 3 or Si0 2 . Whilst A1 2 0 3 and Si0 2 show a good degree of thermal stability they are difficult to deposit using common sputtering techniques.
  • the antireflective layer according to the present invention may be used without prejudicing the mechanical resistance of the coating. In particular, it may perform well in pummel tests when the glazing panel is used in a laminated structure.
  • crystallisation of the Ag layer affects its optical properties.
  • a pure ZnO layer adjacent the Ag can lead to excessive crystallisation of the Ag and to problems of haze in the coating, particularly during heat treatment.
  • an antireflective layer does not consist of ZnO there may be insufficient recrystallisation of the Ag layers resulting in a level of infra red reflection and a level of electrical conductivity in the coating which are below the optimum obtainable.
  • the present invention may be used to favour crystallisation to a sufficient degree to provide good infra red reflecting properties whilst avoiding excessive haze. In particular, it may provide a favourable crystallisation compared with an antireflective layer composed of Ti0 2 .
  • an oxide layer which is a mixture of Zn and at least one of the specified addition materials, particularly when the additional material is Ti, Ta, Zr, Nb, Bi or a mixture of these metals, will generally have a higher refractive index than antireflective layers of, for example, ZnO and Sn0 2 , which are commonly used in similar structures and yet will be quicker to deposit than known antireflective layers having relatively high refractive indexes, for example, Ti0 2 . Consequently, this may enable the production cycle time to be improved.
  • the higher refractive index may, in addition, facilitate an increase in the selectivity of the coating stack, particularly when the additional material is Ti, Ta, Zr, Nb, Bi or a mixture of these metals.
  • antireflective layer in accordance with the present invention as the or part of the top antireflective layer, particularly as a layer exposed to the atmosphere may provide good chemical and mechanical resistance.
  • the glazing panel may provide good compatibility with a laminating film, for example a pvb film, if the glazing panel is to be laminated to form a laminated glazing panel.
  • a laminating film for example a pvb film
  • the advantageous properties of the antireflective layer according to the present invention may not be obtainable if the atomic ratio X/Zn is below the specified minimum, for example, if the material X is present only in the form of an impurity or if the atomic ratio X/Zn is not sufficiently great.
  • Claim 8 defines a particularly advantageous arrangement of the layers of the coating stack.
  • the defined nitride layer which is preferably deposited directly on the surface of the glass substrate, provides a good barrier to ion and oxygen diffusion from the glass substrate whilst the overlying mixed oxide layer provides particularly good compatibility with the infra-red reflecting layer • in the top dielectric, the mixed oxide layer provides particularly good compatibility with the infra-red reflecting layer whilst the defined nitride layer provides a good barrier to oxygen diffusion from the atmosphere.
  • the advantageous combination of properties obtainable with the antireflective layer according to the present invention may be utilised in a coating stack having two, or indeed more than two, spaced infra-red reflecting layers.
  • Multiple spaced infra-red reflecting layers may be used to provide the glazing panel with a selectivity that is greater than 1.5 or 1.7 and/or to further enhance to heat reflecting properties of the glazing. Particularly advantageous properties may be obtained if additional material X consists
  • the filter stack may comprise one or more barrier layers underlying and/or overlying the infra red reflecting layer, as is known in the art. Barriers of, for example, one or more of the following material may be used: Ti, Zn, Cr, "stainless steel", Zr, Ni, NiCr, ZnTi and ZnAl. Such barriers may be deposited, for example, as metallic layers or as sub-oxides (i.e. partially oxidised layers). Where the coating stack includes an oxide layer, one or more of such barrier layers may comprise the same materials as the oxide layer, particularly any adjacent oxide layer. This may facilitate management of targets and control of deposition conditions and in the latter case may prove good adhesion between the layers and thus good mechanical durability of the coating stack.
  • the layer which comprises a nitride preferably comprises at least one of the specified materials Al, Si or Zr in an amount of at least 10% of the nitrided atoms.
  • the layer which comprises a nitride may comprise, for example, a nitride of aluminium, a nitride of silicon, a mixed nitride comprising Al and Si, a mixed nitride comprising Al and Zr, a mixed nitride comprising Si and Zr, a mixed nitride comprising Al, Si and Zr.
  • This layer may be used to block migration and/or dissipation of oxygen in the coating layers and migration and/or diffusion of ions and other substances from the glass substrate into the coating layers, particularly sodium and potassium.
  • the layer which comprises a nitride may consist essentially of A1N,
  • the nitride layer may be deposited by sputtering a target in a nitrogen atmosphere. Alternatively, it may be deposited by sputtering a target in an atmosphere which is a mixture of argon and nitrogen.
  • the nitride layer may comprise a pure nitride or, for example, an oxynitride, a carbonitride or an oxycarbonitride.
  • the nitride layer is a mixed nitride comprising Al
  • it may have an atomic ration X/Al of between 0.2 and 5, especially between 0.4 and 3.5 or between 0.4 and 2.5 where X is Si, Zr or Si and Zr.
  • the atomic ratios may be: Si/Al of about 0.5 and Zr/Al of about 0.2.
  • thermo treatable glazing panel means that the glazing panel carrying the coating stack is adapted to undergo a bending and/or thermal tempering and/or thermal hardening operation and/or other heat treatment process without the haze of the so treated glazing panel exceeding 0.5, and preferably without the haze exceeding 0.3.
  • substantially haze free heat treated glazing panel means a glazing panel carrying a coating stack which has been bent and/or thermally tempered and/or thermally hardened and/or subject to another heat treatment process after deposition of the coating stack and has a haze that does not exceed 0.5 and which preferably does not exceed 0.3.
  • heat treatment processes may involve heating or exposing the glazing carrying the coating stack or to a temperature greater than about 560 °C, for example, between 560 °C and 700°C in the atmosphere.
  • Other such heat treatment processes may be sintering of a ceramic or enamel material, vacuum sealing of a double glazing unit and calcination of a wet-coated low reflective coating or antiglare coating.
  • the heat treatment process may be carried out at a temperature of at least, 600 °C for at least 10 minutes, 12 minutes, or 15 minutes , at least 620 °C for at least 10 minutes, 12 minutes, or 15 minutes, or at least 640 °C for at least 10 minutes, 12 minutes, or 15 minutes.
  • One or more of the antireflective layers may comprise an oxide, a nitride, a carbide or a mixture thereof.
  • the antireflective layer may comprise:
  • a double compound for example, SiOxCy, SiOxNy, SiAlxNy or SiAlxOyNz.
  • the antireflective layer may be a single layer or it may comprise two or more layers having different compositions.
  • An oxide of zinc preferably a zinc oxide containing at least one of Sn, Cr, Si, B, Mg, In, Ga and preferably Al and/or
  • Ti is particularly preferred as use of these materials may facilitate stable formation of an adjacent infra red reflecting layer with a high crystallinity.
  • the thickness of the mixed oxide layer in accordance with the present invention is preferably at least 50 A; this may provide a sufficient quantity to have a worthwhile or noticeable effect.
  • the mixed oxide layer used in the coating stack in accordance with the present invention may have a thickness of at least 80 A , 100 A
  • An oxide layer which is a mixture of Zn and at least one of the specified additional materials may be used to confer advantageous properties on one, more than one or preferably all of the antireflective layer in the coating stack.
  • antireflective layers of the coating stack may simplify process control and ordering and storage of the necessary targets.
  • more than one antireflective layer comprises an oxide layer which is a mixture of Zn and at least one of the specified additional materials, such oxide layers may have the same or substantially the same composition.
  • the atomic ratio X/Zn is within the range of about 0.03-1, preferably about 0.05-0.6 and more preferably about 0.08-0.5.
  • the ratio X/Zn may be less than or equal to 6, 5, 4, 3 or 2.
  • Heat treatment may provoke an increase in the TL of the glazing panel.
  • Such an increase in TL may be advantageous in ensuring that TL is sufficiently high for the glazing panel to provide good levels of visibility.
  • TL may increase in absolute terms during heat treatment by , for example, greater than about 2.5%, greater than about 3%, greater than about 5% , greater than about 8% or greater than about 10%.
  • the coating stack may be arranged such that there is no significant increase in TL during heat treatment.
  • One way of facilitating this is to avoid the use of metallic barrier layers underneath the infra-red reflective layer(s).
  • composition glasses for example, glasses having low coefficients of expansion and/or higher transformation temperatures than sodalime float glass and/or glass-ceramic composition(s)
  • the thickness of the glass substrate may be greater than about 3mm; this may facilitate resistance to breaking, both from physical contact in ordinary use and when exposed to the thermal shock and temperatures encountered in fire conditions.
  • the glass substrate may be, for example, about 3mm, 4mm, 5mm, 6mm, 7mm, 8mm or thicker.
  • each monolithic glazing panel need not be of the same thickness.
  • the glazing panels may be heat treated, for example by thermal tempering; this may be done either before or after application of the coating.
  • One particular advantage of the present invention is the ability it provides to achieve a desired level of fire screening by enhancing the properties of known glazings and/or reducing the requirements for other aspects of a glazing.
  • the glazing panel of the present invention may be a heat tempered glass with a coating in which the tempering is relatively gentle and yet may have equivalent or improved fire screening properties when compared with a known tempered glass which has been subjected to a harsher tempering process which does not have the coating or properties required by the present invention.
  • the present invention may allow a particular level of fire screening to be obtained using a larger glazing surface than has previously been possible in a similar structure.
  • the glazing panel must be properly assembled for example in a partition, and/or in a fire resistant window or door frame, for the overall structure to have desired fire screening properties.
  • sodalime glass particularly sodalime float glass.
  • Heat Cycle A consists of the following sequential steps: a) preheating an electrical laboratory oven under normal atmospheric conditions to about 600 °C b) placing the glazing panel to be tested in the oven c) removing the glazing panel from the oven after 60 minutes and allowing it to cool under normal atmospheric conditions until it reaches room temperature d) measuring the properties of the glazing panel.
  • Frame System G consists of the arrangement described below with reference to Fig 3: Ref. N° Description
  • the frame is made of welded mild steel tube 1 (the width of which is adapted to the thickness of the glazing panel 7) and contains two apertures in which separate glazing panels may be arranged. Both apertures in the frame are calculated so as there is a gap of 10mm between the edge of the glazing panel and the inside edge of the frame.
  • Two glazing panels are installed in the frame and are thus separated by a mild steel mullion having the same features as steel tube 1. Each glazing panel is put on setting blocks 4. Each glazing panel is held by the mild steel plate 3. Ceramic fiber paper 5 is arranged between the perimeter of the glazing panel and the steel plates 3. Mild steel angles 2 are screwed into the mild steel tube 1 with screws (1 screw about every 250mm).
  • the plates are pushed towards the glazing panel by the mean of screws 9 themselves screwed in the angles 2 (1 screw about every 250mm).
  • the frame is fixed in the masonry 10 by the mean of Hilti bolts 8. Between the frame and the masonry, there is slightly compressed mineral wool 6.
  • Fig 1 is a cross-section through a glazing panel prior to assembly as a double glazing unit (for ease of representation, the relative thicknesses of the glazing panel and coating layers are not shown to scale).
  • Fig 1 shows a single Ag layer, heat treatable, coating layer deposited on a sodalime glass substrate by magnetron sputtering and having the following se uential structure:
  • ZnAlOx is a mixed oxide containing Zn and Al deposited in this example by reactively sputtering a target which is an alloy or mixture of Zn and Al in the presence of oxygen .
  • the ZnAlOy barrier is similarly deposited by sputtering a target which is an alloy or mixture of Zn and Al in an argon rich oxygen containing atmosphere to deposit a barrier that is not fully oxidised.
  • each of the base and top ZnAlOx dielectric layers need not necessarily be the same. Equally, the Al/Zn ratio need not be the same for all of the layers; for example, the barrier layer may have a different Al/Zn ratio to the antireflective dielectric layers and the antireflective dielectric layers may have different Al/Zn ratios from each other.
  • the Ag layer acts to reflect incident infra red radiation; in order to fulfil this role it must be maintained as silver metal rather than silver oxide and must not be contaminated by adjacent layers.
  • the dielectric layers which sandwich the Ag layer serve to reduce the reflection of the visible portion of the spectrum which the Ag layer would otherwise provoke.
  • the barrier serves to prevent oxidation of the Ag layer during sputtering of the overlying dielectric layer in an oxidising atmosphere; this barrier is at least partially oxidised during this process.
  • the barrier protects its underlying silver layer from oxidation during sputter deposition of its overlying ZnAlOx oxide layer. Whilst further oxidation of this barrier layer may occur during deposition of its overlying oxide layers a portion of this barrier preferably remains in the form of an oxide that is not fully oxidised to provide a barrier for subsequent heat treatment of the glazing panel.
  • This particular glazing panel is intended for incorporation in a double glazing unit with an equivalent glazing panel such that the coatings are in positions 2 and 3.
  • the monolithic glazing panel displays the following properties:
  • Fig 2 shows a double Ag layer, heat treatable, coating layer deposited on a sodalime glass substrate by magnetron sputtering and having the following se uential structure:
  • ZnAlOx is a mixed oxide containing Zn and Al deposited in this example by reactively sputtering a target which is an alloy or mixture of Zn and Al in the presence of oxygen .
  • the ZnAl barriers are similarly deposited by sputtering a target which is an alloy or mixture of Zn and Al in a substantially inert, oxygen free atmosphere.
  • At least a portion of the overlying barriers 16, 20 is oxidised during deposition of their overlying oxide layers. Nevertheless, a portion of these barriers preferably remains in metallic form, or at least in the form of an oxide that is not fully oxidised to provide a barrier for subsequent heat treatment of the glazing panel.
  • the glazing panel of Example 2 Prior to incorporation in a fire screening glazing, the glazing panel of Example 2 is thermally tempered. This causes substantially complete oxidation of the underlying barrier layers.
  • This particular glazing panel is intended for incorporation in a double glazing unit with an equivalent glazing panel such that the coatings are in positions 2 and 3.
  • the monolithic glazing panel displays the following properties:
  • the colour co-ordinates of the examples are particularly suited to architectural applications as they give a substantially neutral reflection; the colour in reflection may be adjusted as is known in the art by adjusting the thicknesses of the dielectric layers and/or the infra red reflecting layer(s).

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Surface Treatment Of Glass (AREA)
  • Laminated Bodies (AREA)

Abstract

L'invention concerne un panneau de vitrage multicouche, dont les dimensions sont d'au moins 0,9 m par 2 m, présentant un premier substrat en verre, recouvert d'au moins une couche de revêtement, et un second substrat en verre, espacé du premier substrat en verre sans matériau intumescent intermédiaire; le panneau de vitrage, monté dans un système d'encadrement 'Frame System G', présente une résistance au feu d'au moins 65 minutes, lors de tests réalisés selon les normes européennes prEN1363-1 et prEN 1364-1 (version finale d'octobre 1998).
EP99967971A 1998-12-18 1999-12-15 Panneau de vitrage Withdrawn EP1140722A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP06118440A EP1752426A3 (fr) 1998-12-18 1999-12-15 Panneau de verre
EP99967971A EP1140722A1 (fr) 1998-12-18 1999-12-15 Panneau de vitrage

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
EP98204318 1998-12-18
EP98204318 1998-12-18
PCT/EP1999/010183 WO2000037383A1 (fr) 1998-12-18 1999-12-15 Panneau de vitrage
EP99967971A EP1140722A1 (fr) 1998-12-18 1999-12-15 Panneau de vitrage

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP06118440A Division EP1752426A3 (fr) 1998-12-18 1999-12-15 Panneau de verre

Publications (1)

Publication Number Publication Date
EP1140722A1 true EP1140722A1 (fr) 2001-10-10

Family

ID=8234491

Family Applications (2)

Application Number Title Priority Date Filing Date
EP06118440A Withdrawn EP1752426A3 (fr) 1998-12-18 1999-12-15 Panneau de verre
EP99967971A Withdrawn EP1140722A1 (fr) 1998-12-18 1999-12-15 Panneau de vitrage

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP06118440A Withdrawn EP1752426A3 (fr) 1998-12-18 1999-12-15 Panneau de verre

Country Status (7)

Country Link
EP (2) EP1752426A3 (fr)
AU (1) AU2433500A (fr)
CZ (1) CZ20012223A3 (fr)
HU (1) HUP0104650A2 (fr)
PL (1) PL349502A1 (fr)
SK (1) SK8392001A3 (fr)
WO (1) WO2000037383A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2818272B1 (fr) * 2000-12-15 2003-08-29 Saint Gobain Vitrage muni d'un empilement de couches minces pour la protection solaire et/ou l'isolation thermique
EP1577276A1 (fr) * 2004-03-05 2005-09-21 Glaverbel Panneau de vitrage
EP1833768B1 (fr) * 2004-12-21 2012-06-13 AGC Glass Europe Feuille de verre portant un empilage multi-couches
US8658289B2 (en) * 2007-11-16 2014-02-25 Ppg Industries Ohio, Inc. Electromagnetic radiation shielding device
DE102012200799A1 (de) 2011-09-26 2013-03-28 Interpane Entwicklungs-Und Beratungsgesellschaft Mbh Brandschutzelement mit Schutzbeschichtung und dessen Herstellungsverfahren
EP2774897A4 (fr) * 2011-11-01 2015-08-19 Nippon Sheet Glass Co Ltd Vitre simple pour porte coupe-feu, et vitre double pour porte coupe-feu
PT2931673T (pt) * 2012-12-17 2020-09-01 Saint Gobain Placa de vidro transparente com revestimento condutor de eletricidade

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE59307708D1 (de) * 1993-01-29 1998-01-02 Schott Glaswerke Scheibenaufbau für eine Brandschutzverglasung
DE4331082C1 (de) * 1993-09-13 1995-04-13 Schott Glaswerke Brandsichere Glasscheibe und Verfahren zur Herstellung einer solchen Glasscheibe
ITFO940034A1 (it) * 1994-09-26 1996-03-26 Giordano Istituto Barriera tagliafuoco relaizzata mediante struttura modulare componibi- le in metallo e vetro
DE19520843A1 (de) * 1995-06-08 1996-12-12 Leybold Ag Scheibe aus durchscheinendem Werkstoff sowie Verfahren zu ihrer Herstellung
CA2179853C (fr) * 1995-06-26 2007-05-22 Susumu Suzuki Stratifie
DE19533053C1 (de) * 1995-09-07 1997-04-17 Ver Glaswerke Gmbh Verfahren zum Beschichten einer Glasscheibe mit einer wenigstens eine Silberschicht aufweisenden Mehrfachschicht
DE19541937C1 (de) * 1995-11-10 1996-11-28 Ver Glaswerke Gmbh Wärmedämmendes Schichtsystem mit niedriger Emissivität, hoher Transmission und neutraler Ansicht in Reflexion und Transmission
EP0918044A1 (fr) * 1997-11-19 1999-05-26 Glaverbel Vitrage de protection solaire

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0037383A1 *

Also Published As

Publication number Publication date
CZ20012223A3 (cs) 2002-03-13
EP1752426A2 (fr) 2007-02-14
EP1752426A3 (fr) 2007-03-07
AU2433500A (en) 2000-07-12
HUP0104650A2 (en) 2002-11-28
SK8392001A3 (en) 2002-01-07
WO2000037383A1 (fr) 2000-06-29
PL349502A1 (en) 2002-07-29

Similar Documents

Publication Publication Date Title
EP1154963B1 (fr) Panneau vitre
EP1150928B1 (fr) Panneau de vitrage
EP3004015B1 (fr) Vitrage à faible émissivité
US6610410B2 (en) Glazing panel
EP1154965B1 (fr) Panneau vitre
US8003235B2 (en) Coated glass pane
AU2005300507B2 (en) Glazing
EP3004014B1 (fr) Vitrage faiblement émissif et antisolaire
KR101941718B1 (ko) 박막 다중층이 구비된 투명 기판
US6432545B1 (en) Glazing provided with a low-emissivity multilayer stack
US6699585B2 (en) Glazing panel
US20080085404A1 (en) Transparent substrate coated with a silver layer
EP1147066B1 (fr) Panneau de vitrage
EP2102126B1 (fr) Plaques de verre à couches et leur procédé de fabrication
GB2300133A (en) Coated substrate having high luminous transmission, low solar factor and neutral aspect in reflection.
EP1752426A2 (fr) Panneau de verre
EP1154964A1 (fr) Panneau vitre

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20010718

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO PAYMENT 20010718;SI

17Q First examination report despatched

Effective date: 20020812

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: AGC FLAT GLASS EUROPE SA

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Effective date: 20090312