Classifications

• • 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
  • C03C27/00—Joining pieces of glass to pieces of other inorganic material; Joining glass to glass other than by fusing
  • C03C27/06—Joining glass to glass by processes other than fusing
  • C03C27/10—Joining glass to glass by processes other than fusing with the aid of adhesive specially adapted for that purpose
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B32—LAYERED PRODUCTS
  • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
  • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
  • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
  • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
  • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
  • B32B17/10009—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets
  • B32B17/10036—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets comprising two outer glass sheets
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B32—LAYERED PRODUCTS
  • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
  • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
  • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
  • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
  • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
  • B32B17/10009—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets
  • B32B17/10036—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets comprising two outer glass sheets
  • B32B17/10045—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets comprising two outer glass sheets with at least one intermediate layer consisting of a glass sheet
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B32—LAYERED PRODUCTS
  • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
  • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
  • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
  • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
  • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
  • B32B17/10165—Functional features of the laminated safety glass or glazing
  • B32B17/10293—Edge features, e.g. inserts or holes
  • B32B17/10302—Edge sealing
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B32—LAYERED PRODUCTS
  • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
  • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
  • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
  • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
  • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
  • B32B17/10165—Functional features of the laminated safety glass or glazing
  • B32B17/10431—Specific parts for the modulation of light incorporated into the laminated safety glass or glazing
  • B32B17/10467—Variable transmission
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B32—LAYERED PRODUCTS
  • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
  • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
  • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
  • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
  • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
  • B32B17/1055—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer
  • B32B17/1077—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer containing polyurethane
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
  • B60J3/00—Antiglare equipment associated with windows or windscreens; Sun visors for vehicles
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B64—AIRCRAFT; AVIATION; COSMONAUTICS
  • B64C—AEROPLANES; HELICOPTERS
  • B64C1/00—Fuselages; Constructional features common to fuselages, wings, stabilising surfaces or the like
  • B64C1/14—Windows; Doors; Hatch covers or access panels; Surrounding frame structures; Canopies; Windscreens accessories therefor, e.g. pressure sensors, water deflectors, hinges, seals, handles, latches, windscreen wipers
  • B64C1/1476—Canopies; Windscreens or similar transparent elements
  • B64C1/1492—Structure and mounting of the transparent elements in the window or windscreen
• • E—FIXED CONSTRUCTIONS
  • E04—BUILDING
  • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
  • E04F13/00—Coverings or linings, e.g. for walls or ceilings
  • E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
  • E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
  • E04F13/14—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements stone or stone-like materials, e.g. ceramics concrete; of glass or with an outer layer of stone or stone-like materials or glass
  • E04F13/145—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements stone or stone-like materials, e.g. ceramics concrete; of glass or with an outer layer of stone or stone-like materials or glass with an outer layer of glass
• • G—PHYSICS
  • G02—OPTICS
  • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
  • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
  • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
  • G02F1/15—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on an electrochromic effect
  • G02F1/153—Constructional details
  • G02F1/157—Structural association of cells with optical devices, e.g. reflectors or illuminating devices

Definitions

• the present invention relates to laminated glazings, and more particularly those which have functionalities conferred by one or more layers and / or one or more discontinuous elements that may be of organic, mineral or hybrid organic / mineral nature.
• the laminated glazings usually consist of two rigid substrates between which is disposed a sheet or a superposition of polymer sheets of the thermoplastic type.
• the invention also includes so-called "asymmetrical" laminated glazings using a single rigid glass-type substrate associated with several polymer sheets, generally at least one based on polyurethane.
• the invention also includes laminated glazings having at least one interlayer sheet based on a single or double-sided adhesive polymer of the elastomer type (that is to say not requiring a lamination operation in the conventional sense of the term, laminating imposing heating generally under pressure to soften and adhere the thermoplastic interlayer sheet).
• the discontinuous layers or elements mentioned above are generally arranged against one of the rigid substrates (or against the single rigid substrate) between said substrate and the sheet or one of the flexible sheets based on polymer. They can also be arranged between two flexible or semi-flexible substrates themselves associated with a rigid substrate or arranged between two rigid substrates. They will be referred to as "active systems".
• the glazing may include several.
• the first types of active system of interest to the invention are electrochemical systems in general, and more particularly electrically controllable systems of the glazing type with variable energy and / or optical properties. They also include photovoltaic and electroluminescent systems. These systems have very different applications: photovoltaic cells convert solar energy into light energy.
• the electrically controllable systems make it possible, in particular, to obtain glazing which can be modified at will obscuration / degree of vision or filtration of thermal / solar radiation.
• This is for example viologen windows, which adjust the transmission or light absorption, such as those described in US-5,239,406 and EP-612 82.
• Electroluminescent systems directly convert electrical energy into light, an example being described in FR-2,770,222.
• electrochromic glazings which can modulate the light and heat transmission. They are described, in particular, in patents EP-253 713 and EP-670 346, the electrolyte being in the form of a polymer or a gel and the other layers being of mineral type. Another type is described in patents EP-867,752, EP-831,360, PCT / FR00 / 00675, PCT / FR99 / 01653, the electrolyte being this time in the form of an essentially mineral layer, all layers of the system then being essentially mineral: this type of electrochromic system is commonly referred to as "all-solid" electrochromic. There are also electrochromic systems where all the layers are of polymer type, this is called “all-polymer” electrochromic.
• the electrochromic systems comprise two layers of electrochromic material separated by an electrolyte layer and framed by two electroconductive layers.
• optical valves they are polymer-based films in which are arranged microdroplets containing particles able to be placed in a preferred direction under the action of an electric field.
• An example is described in WO93 / 09460.
• liquid crystal systems operating in a similar way to the previous ones: they use a polymer film placed between two conductive layers and in which are dispersed liquid crystal droplets, especially nematic with positive dielectric anisotropy. When the film is energized, the liquid crystals are oriented along a preferred axis, which allows vision. Off, the movie becomes broadcast. Examples thereof are described in patents EP-238 164, US-4,435,047, US-4,806,922 and US-4,732,456. Cholesteric liquid crystal polymers, such as those described in the WO92 / patent, may also be mentioned. 19695.
• thermochromic layers particularly at Vanadium oxide base
• thermotropic layers or photochromic layers there may be mentioned thermochromic layers, particularly at Vanadium oxide base, thermotropic layers or photochromic layers.
• layer in its broadest sense: it can be both inorganic materials and organic-type materials, particularly polymers. which may be in the form of polymer films or even gel films. This is particularly the case of thermotropic gels, for example those described in patents EP 639 450, US 5 615 040, WO 94/20294 and EP 878 296.
• a third type of active system to which the invention relates concerns elements in the form of wires or heating networks, or heating conductive layers, by Joule effect (it may be son encrusted on the surface of the thermoplastic sheet as described especially in EP-785 700, EP-553025, EP-506 521 and EP-496 669).
• These stacks can be deposited on one of the rigid substrates or be deposited on a flexible substrate of the PET (polyethylene terephthalate) type that is available between two sheets of thermoplastic polymer of the type PVB (polyvinyl butyral) coming to assemble the two rigid substrates of the glass type. Examples are found in patents EP-638,528, EP-718,250, EP-724,955, EP-758,583 and EP-847,965.
• French Patent No. 2,815,374 refers to a seal system.
• This joint system consists of a set of elements added to the periphery of the glazing for the purpose of isolating gases, liquids, dust, possibly to provide a mechanical reinforcement or an interface with the mounting frame (the bodywork in the case of automotive glazing).
• the joint system is often composed of several elements in order to simultaneously perform all the functions.
• the seal system combines a polyisobutylene (gas barrier) seal, referred to as a butyl seal, and a polysulfide or polyurethane seal (liquid barrier).
• the butyl seal is preferably placed between the two substrates, for at least two reasons.
• this set of rigid substrate / flexible interlayer / rigid substrate can be excessively mechanically stressed during the lamination operation (which is usually under pressure and generally hot). Indeed, the edges of the rigid substrates, in the area where the peripheral groove of the active system is located, are cantilevered and tend to bend under the pressure relative to the more central part of said substrates. This will result in optical distortion effects, visible in reflection and / or transmission.
• the purpose of the invention is therefore to improve the design of the systems said laminated glazing joints, in particular with respect to their chemical properties and / or their mechanical properties, and / or their implementation and / or their configuration relative to the substrates protecting the active systems.
• Butyl rubber gaskets associated with silicone or polysulfide gaskets are generally used.
• these joints are likely to improve in several ways. Indeed, these joints must best meet at least three requirements that are not necessarily compatible: - as we have seen, they must isolate the active system from the outside.
• the peripheral sealing means which must provide a liquid water barrier and is generally reported by an encapsulation technique that may damage the glazing, because thin substrates do not have mechanical sufficient to withstand the compressive forces generated by the molds and incur a risk of breakage periphery, resulting in a non-compliance of the device incorporating the active system.
• the use of so-called thin laminate substrates greatly reduces the contact surfaces for attachment of the peripheral seal.
• the optimal attachment of a peripheral seal reported by an extrusion technique and / or encapsulation is conditioned by the thickness of the glass sheet. It is understood that for a thin substrate, the edge of the glass sheet is almost a line, which is obviously too small a thickness to allow optimum attachment of the seal.
• the purpose of the invention is therefore to improve the design of the peripheral sealing seals of the aforementioned laminated glazings, in particular as regards their chemical properties and / or their mechanical properties, and / or their implementation and / or their configuration. compared to substrates protecting active systems.
• the invention firstly relates to a laminated glazing unit, the various structures of which have been described above, and comprising an "active system" among one of those mentioned above which is disposed between two thin substrates of said glazing unit.
• the invention consists in providing this glazing with a first means of peripheral sealing of the active system, particularly with respect to water in vapor form, comprising at least one seal based on a polymer (s) hot melt (s) ) chosen from at least one of the following families of polymers: ethylene vinyl acetate, polyisobutylene (butyl rubber), polyamide, and a second sealing means, in particular with respect to liquid water, this second sealing means being positioned between the substrates and peripherally with respect to the first sealing means.
• the first sealing means and within the meaning of the invention is hot melt. It has a softening point at room temperature, a soft appearance and because of its viscosity, at this temperature, it can be liquefied to ask / shape at acceptable temperatures industrially.
• They also have a viscosity of between 0.1 and 20 Pa.s, especially between 0.8 and 8 Pa.s, measured at 190 ° C.
• the hot-melt polymers of the joints described above can be substituted by mastics, which are hot-acting polymers such as hot melt polymers, but whose transformation from the solid phase to the liquid phase is not reversible, unlike hot melt (because it is thermosetting).
• mastics which are hot-acting polymers such as hot melt polymers, but whose transformation from the solid phase to the liquid phase is not reversible, unlike hot melt (because it is thermosetting).
• Polyurethane-based sealants are particularly preferred, whose water permeability in vapor form is less than or equal to 4 g / m 2 / 24h or even close to 2.
• PU-based sealants meeting the desired criteria are sealants marketed under the reference IS442 by Tremco company (permeability of 5 g / m 2/24 h) and under the reference PU 3189/2 by the company SEAL FRENCH (permeability of 4 g / m 2/24 h).
• mastics can ensure both a good water vapor and liquid water impermeability, while it is preferable to "double" the hot melt polymer joints of a second gasket to serve as a barrier to liquid water. It can also be mastics based on polysulfide or silicone.
• Another aspect of the invention relates to the way in which the mechanical resistance of the seals for these laminated glazings can also be improved from so-called thin glass sheet, in particular but not exclusively, the hot-melt joints described above:
• Another subject of the invention is the same type of substrate, provided with a first peripheral sealing means, particularly with respect to water in vapor form, which comprises at least one polymer-based seal and which is associated with a second sealing means providing both means of mechanical reinforcement and / or calibration of the spacing between the two substrates between which is the active system and a water seal in liquid form.
• the seal has a significant mechanical strength.
• the device is in the form of a laminated glazing comprising two rigid or semi-rigid substrates, the thickness of which can be described as thin (between 0.4 mm and 1.8 mm) between which the active system and one or more sheets of polymer assembly.
• a convenient configuration is to provide that the sheet (s) of assembly polymer (as well as the active system itself) are smaller than those of the two substrates. This creates at the periphery of the glazing a groove where we will be able to accommodate the second sealing means or.
• the second sealing and reinforcing / sizing means may be in the form of a frame, in particular of thermoplastic material, of the lamination interlayer type, low melting point.
• the section of the frame can be square, rectangular, etc. This frame can be one piece, or be in several parts that is put end to end during installation.
• This second peripheral sealing means may take the form of a thermoplastic polymer gasket, for example polyvinyl butyral PVB, ethylene vinyl acetate EVA, based on sulfur-based polymer, based on polyethylene acrylate, EPDM that the extruded as the first butyl-based sealing means, or certain polyurethanes.
• this seal may be in fact of the same chemical nature, or of a similar chemical nature, as that of the thermoplastic interlayer sheets used for laminating the glazing.
• thermoplastic polymer of the same origin as the interlayers indeed provide the role of sealing liquid, and are in a material already available since it is used to make the interleaves: it is a simple and effective solution, that of "diverting" thus thermoplastic sheets to make them play the role of complementary joints.
• This thermoplastic seal is preferably continuous all around the glazing. It can also be discontinuous. He thus “imprison" the other or joints arranged before him in the peripheral groove.
• the first and second sealing means of the device comprise seals which are contiguous.
• Co-injection / co-extrusion can be done, for example, of two types of joints of different chemical formulations. It is also possible to deposit side by side two pre-extruded or pre-cast or pre-cut cords. It is possible to ensure that all the joints are housed in the peripheral groove described above. We then have a device whose sealing is flush, and does not "overflow" substrates, which is both aesthetic and practical for the mounting of the substrate in motor vehicles, aircraft (use as a porthole) or buildings, or in screens or "displays".
• these means of sealing and mechanical reinforcement are placed on one of the substrates of the device, before its assembly with the other substrate (case of cords mentioned above).
• sealing and reinforcing means used in the context of the invention are arranged so as to have no contact with the electroconductive layers of the active system.
• FIGS. 1, 2 and 3 represent, very schematically, a sealed electrochromic laminated glazing unit according to the invention.
• the examples all relate to electrochromic glazing "all solid".
• some elements may be represented in larger or smaller dimensions than in reality, in order to facilitate understanding of the figures.
• FIGS. 1, 2 relate to electrochromic glazing 1. It comprises successively, from the inside to the outside of the passenger compartment, two thin glasses S1, S2, which are clear glasses (they can also be tinted) silico-soda-lime, of respectively 0.4 mm and 1.8 mm d thickness for example.
• the glasses S1 and S2 are of the same size and their dimensions are 150 mm x 150 mm.
• the glass S1 is laminated to the glass S2 by a thermoplastic sheet of polyurethane (PU) 0.8 mm thick (it can be replaced by a sheet of ethylenevinylacetate (EVA) or polyvinylbutyral (PVB) by trapping a stack 3 thin layers of electrochromic type.
• PU polyurethane
• EVA ethylenevinylacetate
• PVB polyvinylbutyral
• the stack of thin electrochromic layers may be of the "all solid" type and it comprises for example an active stack 3 placed between two electronic conductive materials also called current collectors 2 and 4.
• the collector 2 is intended to be in contact with the 2.
• the collectors 2 and 4 and the active stack 3 may be of substantially identical dimensions and shapes, or of substantially different dimensions and shapes, and it will be understood that the path of the collectors 2 and 4 will be adapted in accordance with FIGS. function of the configuration.
• the dimensions of the substrates in particular Sl can be substantially greater than those of 2, 4 and 3.
• the collectors 2 and 4 are of metallic type or of the type TCO (Transparent Conductive Oxide) in In 2 O 3 : Sn (ITO), SnO 2 : F, ZnO: A1, or be a TCO / metal / type multi-layer.
• TCO Transparent Conductive Oxide
• ITO In 2 O 3
• SnO 2 SnO 2
• F ZnO
• A1 a TCO / metal / type multi-layer.
• TCO (these TCOs may be chosen from those mentioned above), and the metal being chosen in particular from silver, gold, platinum, copper. It may also be a multi-layer type NiCr / metal / NiCr, the metal being also chosen in particular from silver, gold, platinum, copper. According to the configurations, they can be suppressed and in this case current leads are directly in contact with the active stack 3.
• the glazing 1 incorporates current leads 8, 9 which control the active system via a power supply. These current leads are of the type used for heated glazing (ie foil, wire or the like).
• a preferred embodiment of the collector 2 consists in depositing on the face 2 (the numbering system of the faces will be recalled: 1 outer face of Sl, 2 inner face of Sl, 3 inner face of S2, 4 outer face of S2 directed towards inside an enclosure) a first SiOC layer of 50 nm. surmounted by a second SnO2: F layer of 400 nm (two layers preferably deposited successively by CVD on the float glass before cutting).
• a second embodiment of the collector 2 consists in depositing in face 2 a bilayer constituted by a first SiO 2 -based doped or non-doped layer (in particular doped with aluminum or boron) of approximately 20 nm surmounted by a second layer of ITO of about 100 to 600 nm (two layers preferably deposited successively, under vacuum, by magnetic field assisted sputtering and reactive in the presence of oxygen optionally in hot).
• a bilayer constituted by a first SiO 2 -based doped or non-doped layer (in particular doped with aluminum or boron) of approximately 20 nm surmounted by a second layer of ITO of about 100 to 600 nm (two layers preferably deposited successively, under vacuum, by magnetic field assisted sputtering and reactive in the presence of oxygen optionally in hot).
• collector 2 consists in depositing on the face 2 a monolayer consisting of ITO of approximately 100 to 600 nm (a layer preferably deposited, under vacuum, by magnetic field assisted sputtering and reactive in the presence of oxygen possibly hot)
• the collector 4 is a 100 to 500 nm ITO layer also deposited by magnetic field assisted reactive sputtering on the active stack.
• the active stack 3 is broken down as follows according to a first variant embodiment:
• the active stack 3 is broken down as follows:
• the active stack 3 is broken down as follows: a layer of anodic electrochromic material of iridium oxide 70 at 100 nm, alloyed or not with other metals.
• the active stack 3 may be incised on all or part of its periphery grooves made by mechanical means or by laser radiation attack, possibly pulsed, and this in order to limit peripheral electrical leakage as described in the application French FR-2 781 084.
• the active stack 3 "all solid" can be replaced by other families of electrochromic polymer type.
• this polymer is particularly stable, especially with UV, and operates by insertion-deinsertion of lithium ions (Li + ) or alternatively of H + ions.
• a second part acting as an electrolyte and formed of a layer of thickness between 50 nm to 2000 ⁇ m, and preferably between 50 nm to 1000 ⁇ m, is deposited by a known technique of liquid deposition ( spraying or "spray coating”, dip coating or “dip coating”, rotary spraying or “spin coating” or casting, between the first and third parts on the first part or by injection.
• This second part is based on polyoxyalkylene, in particular polyoxyethylene and may be associated with a mineral-type electrolyte layer, based for example on hydrated oxide of tantalum, zirconium or silicon.
• This example corresponds to a glazing operating by proton transfer. It consists of a first Sl glass substrate, of 0.8 mm soda-lime glass, then successively:
• a first layer of NiO x Hy hydrated nickel oxide electrochromic material of 185 nm (it could be replaced by a 55 nm layer of hydrated iridium oxide), an electrolyte decomposing into a first oxide layer; of 70 nm of hydrated tantalum, a second layer of polyoxyethylene solid solution with POE-HsPO 4 phosphoric acid of 100 microns or alternatively a solid solution of polyethylene imine with phosphoric acid PEI-H 3 PO 4, combined with a hydrated tantalum oxide or hydrated silica oxide or hydrated zirconium oxide layer of 100 nm or a mixture thereof,
• the glazing shown in FIGS. 2,3 incorporates a first peripheral seal in contact with faces 2 and 3, this first seal 10 being adapted to provide a barrier against external chemical attack and a barrier water vapor.
• this base may contain at least one of the following additives:
• a gasket based on polyamide or polyisobutylene or butyl rubber can be used instead of the EVA-based gasket.
• the seal is hot melt (it is a "hot melt” according to the English term). It is soft at room temperature or it can be melted and then injected under pressure into the peripheral groove of the glazing once assembled. It can also be placed on the periphery of the glass Sl before its assembly with the glass S2, the lamination operation calibrating it to the desired section under the effect of pressure and possibly heat.
• a second peripheral seal 11 is in contact with the faces 2 and 3 of S1 and S2 and is positioned at the periphery of the first seal 10. It provides a sealing barrier with the liquid water and provides a reinforcement means of the peripheral groove, preventing thin substrates from breaking during lamination or during successive manipulations.
• This second seal 11 surrounds the first seal 10 and serves to seal against the liquid water. We can deposit it:
• thermoplastic injection of a PVC (polyvinyl chloride) / TPE mixture by injection and vulcanization of terpolymer of ethylene, propylene and an EPDM diene.
• thermoplastic interlayer sheet It may also be a band of PU, EVA, PVB, polyethylene acrylate, for example of the same nature as that of the thermoplastic interlayer sheet.
• the laying can be done simultaneously or consecutively with that of the first seal, before or after assembly of the glazing. It can be "overflowing", cover the edges of the two glasses, or come to stick to the first seal in the peripheral groove of the glazing so that all of the two joints are flush in the final laminated glazing.
• the invention has therefore developed a new chemical seal formulation and a new means for reinforcing mechanically. These means of sealing and mechanical reinforcement are effective when it comes to protecting layers / elements between two substrates that are sensitive to water (liquid and / or vapor), or to gases such as oxygen and, in general, any exposure to the atmosphere.
• the invention also makes it possible to simplify the manufacturing process, since the seals are positioned during the lamination operation, there is no longer any need to carry out the post-lamination encapsulation operation.
• thermoplastic interlayer is replaced by a double-sided adhesive polymer film.
• the laminated glazing previously described may be used as a facade in front of a vehicle dashboard.
• the active system when the active system is colored, it obscures the dashboard thus masking the information or the various dials (account turn, speed indicator, temperature, display screen, watch, ...) n not appearing at the dashboard level.
• This colored state of the active system makes it possible to have a particularly aesthetic rendering of the entire dashboard (in general this situation constitutes the stopping position of the vehicle).
• the laminated glazing positioned in front of the dashboard does not hinder the driver's vision of information from the dashboard and the dashboard does not see its functionality affected.
• the invention has the particular advantage of allowing, compared to the solutions of the prior art generally constituted by tinted glass facades, to avoid oversizing, information systems of the dashboard which must nevertheless, to guarantee a visualization of this information despite the tinted facade, this oversizing resulting in over-consumption of the display devices, and overheating thereof.
• the laminated glazing according to the invention is also possible to use the laminated glazing according to the invention, always positioned in front of the screens of a dashboard, as a head-up display screen (in English HUD for Head Up Display).
• the laminated glazing is associated with a third counter-glass which is superimposed on it.
• the laminated glazing is associated with a third counter-glass which is superimposed on it.
• the operation of the head-up display screen is as follows:
• the projected image In a colored state of the active system, the projected image is reflected by the screen and becomes visible, without optical distortion, by the driver. In a faded state of the active system, the projected (or non-projected) image is not reflected by the screen positioned on the front of the dashboard, and the usual information from the indicators, counters, and the like edge, appear normally.

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• Engineering & Computer Science (AREA)
• Physics & Mathematics (AREA)
• Nonlinear Science (AREA)
• Architecture (AREA)
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• Mechanical Engineering (AREA)
• Ceramic Engineering (AREA)
• Optics & Photonics (AREA)
• Civil Engineering (AREA)
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• General Physics & Mathematics (AREA)
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• Geochemistry & Mineralogy (AREA)
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• Organic Chemistry (AREA)
• Joining Of Glass To Other Materials (AREA)
• Laminated Bodies (AREA)
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• 2006
  • 2006-04-10 FR FR0651276A patent/FR2899631B1/fr not_active Expired - Fee Related
• 2007
  • 2007-04-04 CN CNA2007800123724A patent/CN101415550A/zh active Pending
  • 2007-04-04 CA CA002648396A patent/CA2648396A1/fr not_active Abandoned
  • 2007-04-04 JP JP2009504791A patent/JP2009533248A/ja active Pending
  • 2007-04-04 BR BRPI0710488-0A patent/BRPI0710488A2/pt not_active IP Right Cessation
  • 2007-04-04 RU RU2008144182/05A patent/RU2435672C2/ru not_active IP Right Cessation
  • 2007-04-04 KR KR1020087023665A patent/KR20080108110A/ko not_active Ceased
  • 2007-04-04 US US12/296,035 patent/US20090181203A1/en not_active Abandoned
  • 2007-04-04 WO PCT/FR2007/051073 patent/WO2007116184A1/fr not_active Ceased
  • 2007-04-04 EP EP07731875A patent/EP2010384A1/de not_active Withdrawn

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