WO2022148618A1 - Vitre composite comprenant un bandeau de protection contre l'éblouissement par le soleil présentant une fonction de protection thermique améliorée - Google Patents

Vitre composite comprenant un bandeau de protection contre l'éblouissement par le soleil présentant une fonction de protection thermique améliorée Download PDF

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Publication number
WO2022148618A1
WO2022148618A1 PCT/EP2021/085903 EP2021085903W WO2022148618A1 WO 2022148618 A1 WO2022148618 A1 WO 2022148618A1 EP 2021085903 W EP2021085903 W EP 2021085903W WO 2022148618 A1 WO2022148618 A1 WO 2022148618A1
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WO
WIPO (PCT)
Prior art keywords
pane
glare
area
heat
glare protection
Prior art date
Application number
PCT/EP2021/085903
Other languages
German (de)
English (en)
Inventor
Stephan GIER
Uwe Van Der Meulen
Andrea WILLMS
Original Assignee
Saint-Gobain Glass France
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 filed Critical Saint-Gobain Glass France
Priority to CN202180004945.9A priority Critical patent/CN115087542A/zh
Publication of WO2022148618A1 publication Critical patent/WO2022148618A1/fr

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    • B32B5/14—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by a layer differing constitutionally or physically in different parts, e.g. denser near its faces
    • B32B5/142—Variation across the area of the layer
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    • B29C48/07—Flat, e.g. panels
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    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
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    • B32B2605/00—Vehicles
    • B32B2605/08—Cars

Definitions

  • the invention relates to a composite pane with a sun glare protection strip with an improved heat protection function, as well as a method for its production and the use of such a composite pane.
  • films are often used which have a so-called color band in the upper area as sun glare protection.
  • the upper part of such a film can be coextruded with a correspondingly colored polymer melt.
  • partially colored transparent films such as those used as intermediate films for safety glass for motor vehicles
  • a precisely defined and dimensioned transition area from a colorless part to a colored part with a continuous transition in color intensity is required. This is achieved, for example, with a ribbon that has a wedge-shaped profile at the end of the ribbon.
  • Processes for producing films suitable for use in the automotive sector with colored ribbons are available in the prior art and are described, for example, in US3715420, US3799718 and US4562023.
  • composite panes in particular for vehicle panes, which, in addition to sun glare protection by means of a color band, also have or enable other functionalities.
  • these include, for example, improved sound insulation, which can be achieved by so-called acoustic foils in the composite panes, the provision of suitability for a HUD (head-up display) function, for example through the use of wedge foils, and an improved heat protection function to increase thermal comfort in the vehicle interior.
  • JP 2002326846 A and EP1227070 B1 describe polyvinyl butyral films (PVB films) in which heat-shielding particles are distributed over the entire volume of the film to provide the heat protection function.
  • nanoscale semiconductor particles such as ITO or ATO
  • a disadvantage here is the high cost of the particles and the difficulty of preventing agglomeration of the nanoparticles during an extrusion process so that this does not result in unacceptable turbidity.
  • Panoramic windows in particular panoramic windshields, which are extended in the direction of the roof compared to normal standard windshields and allow vehicle occupants an extended view, are becoming increasingly popular in vehicle construction. Such panoramic panes are designed to be comparatively large due to the extended pane and viewing area. Vehicles with panoramic windows often also have a dark-tinted roof window, which is then installed close to the panoramic windshield.
  • EP 2465833 A1 and JP 2008001535 A disclose a vehicle window comprising band filters, the band filters containing infrared-shielding particles.
  • One object of the invention is to provide a laminated pane with a sun glare protection strip with an improved heat protection function, which can be produced simply and more cost-effectively, particularly in a configuration as a panorama windshield.
  • the laminated pane should also be combined with other functions in a simple manner can be designed without the need for complex adjustments in production.
  • a composite pane with anti-glare band comprising an outer pane and an inner pane bonded together by an intermediate layer, the inter-layer comprising a film of thermoplastic polymer having a colored anti-glare area to form the anti-glare band and exclusively additional heat-shielding particles are dispersed in this colored anti-glare area of the film.
  • the glare protection area of the film comprises the volume of the thermoplastic film which is produced and formed in a colored manner for the formation of the sun glare protection band within the thermoplastic film.
  • the glare protection area has the geometric dimensions of the sun glare protection strip.
  • heat-shielding particles are distributed only in the colored volume of the thermoplastic film to form the intermediate layer in the laminated pane and the other part of the film that is not colored for anti-glare protection remains free of the heat-shielding particles additionally introduced according to the invention.
  • the exclusive introduction of heat-shielding particles in the anti-glare area in particular in the case of panoramic panes, can significantly improve heat shielding and provide satisfactory thermal comfort with significantly reduced production costs for the laminated pane.
  • Heat-shielding particles are understood to mean nanoscale, transparent particles that have heat-reflecting or heat-absorbing properties.
  • Advantageously, according to the invention further Clouding due to agglomeration of particles, especially in the visible area, does not occur at all, since this area is produced according to the invention free of the additionally introduced heat-shielding particles. According to the invention, this measure can also significantly reduce the production costs.
  • the heat-shielding particles contain at least one metal or metal oxide, in particular selected from the group of indium tin oxide (ITO), antimony-doped tin oxide (ATO), aluminum-doped zinc oxide (AZO), indium-zinc mixed oxide (IZO), titanium dioxide (T1O2) or tungstates such as cesium tungstate CS2WO4 contain or consist of.
  • ITO and ATO have an advantageous stability against moisture.
  • the heat-shielding particles have an average particle diameter of 5 nm to 200 nm, preferably ⁇ 150 nm, particularly preferably ⁇ 100 nm, for example ⁇ 90 nm, ⁇ 80 nm, ⁇ 70 nm or ⁇ 50nm on.
  • Small particle sizes offer the advantage that they can be dissolved more easily and agglomerate less strongly.
  • the particle size distribution is preferably as homogeneous as possible, ie the particles used have as approximately the same diameter as possible.
  • SEM scanning electron microscopy
  • TEM transmission electron microscopy
  • a further embodiment of the invention provides that the anti-glare area contains 0.1 to 20% by weight, preferably 1 to 10% by weight, particularly preferably ⁇ 5% by weight, for example less than 3% by weight, of the heat-shielding particles , based on the total mass of the colored thermoplastic polymeric material to form the anti-glare area of the film.
  • the particle content is expediently selected such that on the one hand the heat-shielding function is fulfilled, but agglomeration of the particles and thus any undesirable clouding is prevented.
  • the thermoplastic intermediate layer can be formed by a single thermoplastic film in which the tinted or colored anti-glare area is produced by local tinting or coloring. As already described, such films can be obtained, for example, by coextrusion.
  • the thermoplastic intermediate layer is accordingly formed by a coextruded thermoplastic film which extends continuously from the anti-glare area into the visible area and contains heat-shielding particles only in the anti-glare area.
  • a colored film section for the glare protection area and an untinted film section can be combined to form the thermoplastic layer.
  • the glare protection area can be homogeneously colored or tinted and thus have a location-independent transmission.
  • the tint or coloring can also be inhomogeneous; in particular, a transmission curve can be realized.
  • the glare protection area in the thermoplastic film is designed with a wedge-shaped cross section. This means that at least the section of the glare protection area directed downwards (towards the edge of the engine in the motor vehicle) continuously decreases in thickness in cross-section.
  • the transmittance in the tinted or colored area increases, at least in this end section, with increasing distance from the upper edge (roof edge in a motor vehicle). In this way, sharp edges of the colored area can be avoided, so that the transition from the sun glare protection band to the clear, transparent area of the laminated pane, for example a windscreen according to the invention, is gradual, which looks more aesthetically pleasing.
  • the anti-glare area is particularly preferably equipped with a thermoplastic film with a wedge-shaped cross-section, the thickness of the film within the anti-glare area decreasing when the laminated pane is installed as a windshield of a motor vehicle from the roof edge in the direction of the engine edge, while the thickness of the thermoplastic film outside the anti-glare area is constant .
  • a thermoplastic film can optionally be composed of a wedge-shaped film in the anti-glare area and a film of constant thickness in the remaining area, or be designed as a continuous coextruded film which has a wedge-shaped profile in the anti-glare area and a constant thickness in the remaining area.
  • the thermoplastic film is configured as a thermoplastic polymer film that contains polyvinyl butyral (PVB), ethylene vinyl acetate (EVA) or polyurethane and/or mixtures and/or copolymers thereof.
  • PVB polyvinyl butyral
  • EVA ethylene vinyl acetate
  • polyurethane polyurethane and/or mixtures and/or copolymers thereof.
  • Polyvinyl butyral is particularly preferred.
  • the thermoplastic film is preferably based on the materials mentioned, but can contain other components, for example plasticizers.
  • the polymer film types mentioned are particularly well suited for the automotive sector and are easily available, or easy to produce in an analogous manner using already established processes in an embodiment according to the invention with the heat-absorbing particles in the colored anti-glare area.
  • the glare protection area has a width of >30 cm, for example 45 cm or 50 cm.
  • the width in this case means the dimension of the glare protection area, starting from the roof edge in the direction of the motor edge of a windshield. Due to the comparatively wide glare protection area, which is particularly desirable for panoramic windows, a significant improvement in thermal comfort can be achieved by the heat-shielding particles distributed in the glare protection area.
  • the laminated pane with anti-glare strip is designed with a thermoplastic film with a wedge-shaped thickness profile.
  • the laminated pane according to the invention has a wedge-shaped thickness profile overall and can advantageously be used in motor vehicle windshields for head-up displays (HUD).
  • HUD head-up displays
  • the fundamental problem with HUDs is that the projected image is reflected on both surfaces of the windshield. As a result, the driver not only perceives the desired main image, but also a slightly offset secondary image that is usually less intense. The latter is also commonly referred to as ghosting.
  • the wedge-shaped design of the thermoplastic film so that the reflective surfaces are arranged at an appropriately chosen angle to one another, so that the main image and ghost image are superimposed, with the result that the ghost image is no longer disturbingly noticeable.
  • the wedge angle is typically around 0.5 mrad.
  • the HUD function can also be provided in combination with this.
  • the thermoplastic film is an acoustic thermoplastic film, for example an acoustic PVB film.
  • acoustic thermoplastic film for example an acoustic PVB film.
  • a multi-layer for example three-layer film, which has an inner layer with a higher plasticity and/or elasticity than the surrounding outer layers of the thermoplastic film.
  • the inner layer containing a higher proportion of plasticizers can be achieved, for example, by the inner layer containing a higher proportion of plasticizers.
  • the laminated pane in this configuration according to the invention not only has sun glare protection and improved heat protection through the heat-shielding particles in the glare protection area, but also advantageously combines these functions with sound insulation.
  • PVB films preferably have a thickness of approximately 0.2 mm to 1 mm, for example 0.38 mm, 0.76 mm or 0.81 mm.
  • Other properties of the laminated glass pane can be influenced via the thickness of the foils. Thicker PVB films bring about improved soundproofing, in particular as described above, if they contain an acoustically effective core, but also increased burglary resistance and increased protection against ultraviolet radiation (UV protection)
  • the TTS value in the sun glare protection band of the laminated pane is ⁇ 35%, measured according to ISO 13837 conv. A calculated.
  • the TTS value is a measure of the total heat radiation transmitted by the sun through the pane, according to the invention in the area of the sun glare protection strip.
  • the invention further includes a method for producing a laminated pane with a sun visor band, comprising the following steps:
  • thermoplastic film having a colored anti-glare area, wherein heat-shielding particles are dispersed in the colored anti-glare area
  • S2 arranging the thermoplastic film between an outer pane and an inner pane in a stacking sequence
  • S3 Connecting the sequence of stacks to form the laminated pane under the action of heat, vacuum and/or pressure.
  • thermoplastic film is provided in step S1, for example by coextrusion of a first polymer material to form the film and a second, colored polymer material to form the colored anti-glare area within the film, with only the volume of the colored Polymer material of the anti-glare area, the heat-absorbing particles are dispersed.
  • the laminated pane is intended to separate an interior space, in particular the interior space of a vehicle, from the outside environment in a window opening.
  • the composite pane is a laminate and comprises a first and a second glass pane, which are referred to as the outer pane and inner pane within the meaning of the invention and are connected to one another via a thermoplastic intermediate layer.
  • inner pane refers to the pane facing the interior in the installed position.
  • the outer pane refers to the pane facing the outside environment in the installed position.
  • the interior-side surface or inner side or inner surface
  • the outside surface is understood to mean that surface of the panes which faces the external environment in the installed position.
  • the surfaces of the panes are typically denoted as follows:
  • the outside of the outer pane is denoted as side I.
  • the inside of the outer pane is referred to as side II.
  • the outside of the inner pane is referred to as side III.
  • the inside of the inner pane is referred to as side IV.
  • the outer pane and the inner pane are preferably formed independently of one another from glass or plastic, preferably soda-lime glass, alkali aluminosilicate glass, float glass, polycarbonate or polymethyl methacrylate.
  • the outer pane and the inner pane are made of glass.
  • Suitable glass sheets include glass sheets known by the trade names Planiclear and Planilux (each clear glass), or TSANx, TSA3+, TSA4+ from Saint-Gobain, the glasses of the TSA series being green tinted glasses.
  • the outer and/or the inner pane independently of one another, preferably has a thickness of 0.1 mm to 4 mm, preferably 1 mm to 4 mm, particularly preferably 1.6 mm to about 2.1 mm.
  • the intermediate layer comprises at least one film made of thermoplastic polymer which has a colored anti-glare area for forming the sun glare protection tape and additional heat-shielding particles are dispersed exclusively in this colored anti-glare area of the film, or is formed therefrom.
  • the colored anti-glare area is formed in step 1 with a wedge-shaped cross section.
  • a continuous optical transition from the sun glare protection band to the colorless area of the laminated pane can thereby be achieved.
  • the glare protection area can also have a partial area with a uniform thickness in cross section toward an edge of the laminated pane, for example toward the roof edge of a windshield, and only wedge-shaped toward the opposite motor edge in the sun visor band end can be tapered in order to provide the color-continuous transition to the visible area of the laminated pane.
  • this can also be configured in the case of panorama windows, which can have a comparatively wide sun glare protection band.
  • thermoplastic film in step 1 is provided with a surface structure with a roughness of Rz from 15 ⁇ m to 70 ⁇ m, preferably from 25 pm to 50 pm.
  • the roughness Rz is also referred to as the roughness depth, where R z is the arithmetic mean of the individual roughness depths R z of consecutive individual measurement sections:
  • the individual roughness depth R z is the sum of the height of the largest profile peak and the depth of the largest profile valley of the roughness profile within a single measurement section.
  • the measurement of roughness is known to those skilled in the art and is carried out in accordance with DIN EN ISO 4287: 2010-07 and DIN EN ISO 4288: 199804.
  • embossing the film can be done, for example, by embossing the film.
  • the surface structure of the film produced in this embodiment of the method forms channels which advantageously contribute to the reliable venting of the preliminary composite with the outer and inner pane when a negative pressure is applied. Air trapped between the layers must be reliably removed and can flow out through the channels formed by the surface structures.
  • step S3 The joining of the outer pane and the inner pane via the thermoplastic intermediate layer to form the composite pane takes place in step S3, preferably by lamination under the action of heat, vacuum and/or pressure.
  • Methods known per se for producing a composite pane can advantageously be used here. Further adaptation or modification of proven processes, even for series production, is not necessary.
  • so-called autoclave processes can be carried out at an increased pressure of about 10 bar to 15 bar and temperatures of 130° C. to 145° C. for about 2 hours.
  • Known vacuum bag or vacuum ring processes work, for example, at about 200 mbar and 80°C to 110°C.
  • the outer pane, the thermoplastic intermediate layer and the inner pane can also be pressed into a pane in a calender between at least one pair of rollers. Plants of this type are known for the production of discs and normally have at least one heating tunnel in front of a pressing plant. The temperature during the pressing process is, for example, from 40°C to 150°C. Combinations of calender and autoclave processes have proven particularly useful in practice.
  • vacuum laminators can be used. These consist of one or more chambers that can be heated and evacuated, in which the panes are laminated within about 60 minutes, for example, at reduced pressures of 0.01 mbar to 800 mbar and temperatures of 80°C to 170°C.
  • the invention also includes the use of the composite pane according to the invention with sun glare protection tape in means of transport for traffic on land, in the air or on water, in particular vehicle panes, preferably as a windshield, rear window or side window of a passenger car, preferably as a panoramic windshield or rear window .
  • a composite pane according to the invention is produced as a panoramic windshield with an acoustic PVB film with a thickness of 0.81 mm.
  • the PVB has a degree of adhesion that allows a pummel value of 3 to 6 for the resulting laminated panes.
  • the so-called Pummel test is a method known to those skilled in the art for determining the adhesion between a thermoplastic film and the adjacent glass panes of a laminated pane.
  • the pummel value determined in the pummel test is 0 if there is no adhesion, while the value of 10 expresses very high adhesion.
  • the geometric dimensions of the PVB are adapted to the dimensions of the outer and inner panes used and have a height of 1.4 m from the edge of the engine to the edge of the roof with a sun glare protection strip, which of these 140 cm has a width of 45 cm from the edge of the roof measured from, occupies.
  • the TSA3+ outer pane used in each case is a green-tinted glass pane with a thickness of 2.1 mm.
  • a clear PLC (Planiclear) glass pane with a thickness of 1.6 mm is used as the inner pane.
  • a circumferential masking print for example in the form of a black screen print, as is usually provided for vehicle windows, is dispensed with for the example composite windows.
  • the spectral measurements are carried out using a spectrophotometer (e.g. Lambda 900). With this, transmission and reflection spectra can be measured and various parameters, such as the light transmission TL(A) or the total transmission of the solar energy TTS (total transmission of solar energy), can be determined.
  • a spectrophotometer e.g. Lambda 900.
  • the light transmission TL(A) is determined according to ASTM D 1003-61 or according to DIN ISO 5033 / EN410. The light type A/2° is used for this.
  • the TTS value is calculated according to ISO 13837 conv. A calculated.
  • the measurement is carried out in the darkest area of the sample, i.e. at the position of the laminated pane in the sun glare protection band where the light transmission is lowest. This is a wide range (with more or less constant light transmission TL (example TL 2% shown in FIG. 2, or TL(A) 1.8%). 45 cm and is here at a distance of between approximately 95 cm and 140 cm from the motor edge of the windscreen, with the roof edge of the windscreen forming a distance of 140 cm from the motor edge.
  • two examples according to the invention are laminated panes with anti-glare tape in which the anti-glare area contains 0.1 wt.% to 0.3 wt two laminated panes each as corresponding comparative examples (V1 and V2) in which the glare protection area does not contain any heat-shielding particles.
  • the Measure In order to avoid possible influences from the glass edges (e.g. scattering effects), one keeps to the Measure at least 2-3 cm from the glass edges.
  • measurements are not taken directly at a height of 95 cm, where the glare protection area begins, to ensure that you are already in the darkest area, i.e. the light transmission is constantly at the lowest value.
  • the measured light transmission TL(A) of the laminated panes of example B1 according to the invention and of comparative example V1 is identical in each case at 1.8%.
  • the TTS value of the composite pane made of B1 is 27.4% and can thus be significantly improved compared to the comparative value from V1 of 29.6%.
  • the same is also observed when comparing the measurements of the laminated panes from B2 and V2 with an identical TL(A) value of 11.2% in the embodiment according to the invention (example B2) of the laminated pane with heat-shielding particles in the glare protection area a TTS value of 32.5 % measured, while a TTS value of 36% is achieved in comparative example C2.
  • FIG. 1 shows a schematic plan view of a windshield with a sun visor strip
  • FIG. 2 shows a diagram of the course of light transmission versus the height of a windshield from FIG. 1 (according to example B1);
  • FIG. 3a shows a cross section through a film 10 for forming the intermediate layer for a windshield 100 according to the invention, configured as a standard PVB intermediate layer with heat-shielding particles in the anti-glare area;
  • FIG. 3b a cross section through a windshield according to the invention with heat-shielding particles with an acoustic PVB intermediate layer with heat-shielding particles in the anti-glare area.
  • FIG. 1 shows a plan view of a composite pane 100 according to the invention with a sun glare protection strip 1 configured as a windshield, in particular a panoramic windshield.
  • the height of the windshield from the engine edge M to the roof edge D and also the width of the sun glare protection strip 1 is designed to be larger than with standard windshields.
  • the width of the sun visor strip 1, measured from the roof edge D can be >40 cm, as described in example 1, for example 45 cm.
  • Windshields are usually provided with a covering print in their edge regions, for example with a black screen print on an edge A, which optically conceals lines and connections, for example, in the transition from the windshield to the body.
  • Windshields have a central field of vision, with high demands being placed on the optical quality.
  • the central field of view must have high light transmission (typically greater than 70%).
  • Said central field of view is in particular that field of view which is referred to as field of view B, field of view B or zone B by those skilled in the art.
  • Field of view B and its technical requirements are specified in Regulation No. 43 of the United Nations Economic Commission for Europe (UN/ECE) (ECE-R43, "Uniform conditions for the approval of safety glazing materials and their installation in vehicles") field of view B is defined in Annex 18.
  • Anti-glare area 5 is colored inside the laminated pane and has the geometric dimensions of sun visor strip 1 in plan view.
  • Anti-glare area 5 is preferably wedge-shaped in cross-section and as a result preferably has a transmission profile, at least at its lower end pointing towards edge M of the motor , whereby the transmission increases towards the central field of view and the tint gradually fades towards the central field of view. This creates a more visually appealing appearance of the transition area from the sun visor band to the clear field of vision B.
  • Figure 2 shows a diagram of the course of light transmission against the height of a windshield from the motor edge M (at 0 cm) to the roof edge D (at 140 cm) from Figure 1 (in an embodiment without covering print A) according to Example B1 along the cross section XX'.
  • the light transmission of approx. 1.8% in the darkest area of the sun glare protection band 1 can be found in the range from approx. 100 cm to 140 cm. Then there is a transitional area from 100 cm to 95 cm in which the transmission increases towards the central field of vision B and the tint gradually fades towards the central field of vision B. According to the invention, this is achieved, for example, by a wedge-shaped cross section of the anti-glare area 5 . With a light transmission of about 78% in the further course of the windscreen from approx. 95 cm to the motor edge M, the laminated screen meets the requirements applicable to windscreens for the clear field of vision B.
  • the glare protection area 5 can be designed with a substantially constant thickness in cross section, in example 1 approximately in the range from 100 cm to 140 cm, starting from the roof edge D (at 140 cm), in order to bring about the uniform low light transmission and go ahead the opposite motor edge M towards the end of the sun glare protection strip tapering out here in the range of 100 cm to 95 cm in a wedge shape in order to provide the desired, color-continuous transition to the visible area B of the laminated pane 100.
  • heat-absorbing particles 6 are evenly distributed in the glare protection area 5 .
  • FIG. 3a shows a cross section through a thermoplastic film 10 for a windshield 100 according to the invention in an embodiment with a standard PVB film as an intermediate layer with heat-shielding particles 6 in the glare protection area 5.
  • the glare protection area 5 has a wedge-shaped cross section.
  • the heat-shielding particles 6 can preferably contain or consist of at least one metal or metal oxide, in particular selected from the group consisting of ITO, ATO, AZO, T1O2 and CS2WO4.
  • the glare protection area contains 0.1% by weight to 20% by weight, preferably 1% by weight to 10% by weight, particularly preferably less than 5% by weight, of the heat-shielding particles 6, based on the total mass of thermoplastic polymer material Formation of the glare protection area 5 of the thermoplastic film 10.
  • FIG. 3b shows a cross section through a thermoplastic film 10 for a windshield 100 according to the invention in a preferred embodiment
  • Acoustic film for example an acoustic PVB intermediate layer 4 with heat-shielding particles 6 in the anti-glare area 5, the anti-glare area 5 also having a wedge-shaped cross section here.
  • the thermoplastic film 10 is formed in three layers and has an inner layer Li with a higher plasticity or elasticity than the surrounding outer layers L A of the thermoplastic film 10. This can be achieved, for example, in that the inner layer Li has a higher proportion contains plasticizers.
  • sun glare protection, improved heat protection by the heat-shielding particles 6 in the glare protection area 5 and a noise-reducing effect can advantageously be provided in combination.
  • a laminated pane with a sun glare protection strip with an improved heat protection function is provided, which can be produced easily and more cost-effectively, particularly in an embodiment as a panorama windshield.
  • other functions can be configured or enabled in a combined manner in a simple manner, without the need for complex adjustments in production.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Laminated Bodies (AREA)
  • Joining Of Glass To Other Materials (AREA)

Abstract

L'invention concerne une vitre composite (100) comprenant un bandeau de protection contre l'éblouissement par le soleil (1), ladite vitre composite comprenant une vitre externe (2) et une vitre interne (3) reliées l'une à l'autre par une couche intermédiaire (4), la couche intermédiaire (4) comprenant un film (10) constitué d'un polymère thermoplastique qui comporte une région colorée de protection contre l'éblouissement (5) destinée à former le bandeau de protection contre l'éblouissement par le soleil (1), et des particules de protection contre la chaleur (6) étant également dispersées exclusivement dans cette région colorée de protection contre l'éblouissement (5) du film (10). L'invention concerne également un procédé de fabrication d'une telle vitre composite (100) comprenant un bandeau de protection contre l'éblouissement par le soleil (1), ainsi que son utilisation, en particulier en tant que pare-brise, de préférence en tant que pare-brise panoramique, dans des véhicules.
PCT/EP2021/085903 2021-01-11 2021-12-15 Vitre composite comprenant un bandeau de protection contre l'éblouissement par le soleil présentant une fonction de protection thermique améliorée WO2022148618A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202180004945.9A CN115087542A (zh) 2021-01-11 2021-12-15 具有改进的隔热功能的具有防眩带的复合玻璃板

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP21150937 2021-01-11
EP21150937.7 2021-01-11

Publications (1)

Publication Number Publication Date
WO2022148618A1 true WO2022148618A1 (fr) 2022-07-14

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PCT/EP2021/085903 WO2022148618A1 (fr) 2021-01-11 2021-12-15 Vitre composite comprenant un bandeau de protection contre l'éblouissement par le soleil présentant une fonction de protection thermique améliorée

Country Status (3)

Country Link
CN (1) CN115087542A (fr)
DE (1) DE202021004235U1 (fr)
WO (1) WO2022148618A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3715420A (en) 1969-07-19 1973-02-06 Sekisui Chemical Co Ltd Process for producing a thermoplastic resin sheet having a color band
US4562023A (en) 1981-08-18 1985-12-31 Dynamit Nobel Aktiengesellschaft Process and apparatus for producing a synthetic resin sheet having a colored band of varying color intensity
JP2002326846A (ja) 2001-04-27 2002-11-12 Sekisui Chem Co Ltd 合わせガラス用中間膜及び合わせガラス
JP2008001535A (ja) 2006-06-20 2008-01-10 Nippon Sheet Glass Co Ltd 合わせガラス
EP1227070B1 (fr) 1999-10-01 2011-04-06 Sekisui Chemical Co., Ltd. Film intermediaire pour verre feuillete
EP2465833A1 (fr) 2009-08-12 2012-06-20 Asahi Glass Company, Limited Verre feuilleté à utiliser dans des véhicules

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD379718S (en) 1994-08-18 1997-06-10 Norseman Plastics Limited Container

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3715420A (en) 1969-07-19 1973-02-06 Sekisui Chemical Co Ltd Process for producing a thermoplastic resin sheet having a color band
US3799718A (en) 1969-07-19 1974-03-26 Sekisui Chemical Co Ltd Apparatus for producing a thermoplastic resin sheet having a color band
US4562023A (en) 1981-08-18 1985-12-31 Dynamit Nobel Aktiengesellschaft Process and apparatus for producing a synthetic resin sheet having a colored band of varying color intensity
EP1227070B1 (fr) 1999-10-01 2011-04-06 Sekisui Chemical Co., Ltd. Film intermediaire pour verre feuillete
JP2002326846A (ja) 2001-04-27 2002-11-12 Sekisui Chem Co Ltd 合わせガラス用中間膜及び合わせガラス
JP2008001535A (ja) 2006-06-20 2008-01-10 Nippon Sheet Glass Co Ltd 合わせガラス
EP2465833A1 (fr) 2009-08-12 2012-06-20 Asahi Glass Company, Limited Verre feuilleté à utiliser dans des véhicules

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CN115087542A (zh) 2022-09-20
DE202021004235U1 (de) 2023-03-06

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