• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    LAMINATED GLAZING WITH COLORFUL REFLECTION AND HIGH SOLAR TRANSMITANCE SUITABLE FOR SOLAR ENERGY SYSTEMS. The invention reveals an etched / laminated glazing unit for architectural integration of solar energy systems comprising a substrate delimited by two main faces and an interference filter with multiple layers, also delimited by two main faces, a main face of the substrate is adapted to contact an incident medium , the other main face contacts a main face of the interferential filter, the other main face of this filter is adapted to contact an outlet means; the incident medium has a refractive index ninc = 1, the substrate has a refractive index (1.45 (less than equal) nsubstrate = 1.6 at 550 nm) and the output medium (1.45 (less than equal) nout = 1 , 6 to 550 nm); the unit is designed so that: a) The color saturation, given by, for CIE L * color coordinates, a * and b * under CIE-D65 daylight illumination, is greater than 8 at an almost normal angle of reflection, except for gray and brown; b) The visible reflectance at an almost normal reflection angle Rvis is greater than 4%; c) The variation of the dominant wavelength (Lick) MD of the dominant color MD of the reflection with the angle of reflection with angle of reflection (...).
    公开号:BR112015006028B1
    申请号:R112015006028-5
    申请日:2013-08-29
    公开日:2021-03-09
    发明作者:Virginie Hody Le Caër；Andreas Schüler
    申请人:Swissinso Holding Inc；
    IPC主号:
    专利说明:

    FIELD OF THE INVENTION
    [001] The present invention deals with colored laminated glazing suitable for solar energy systems that offer architectural integration of solar energy systems, for example, as solar active glass facades. DEFINITIONS DIRECT TRANSMITANCE
    [002] If the parallel beams of radiation incident on a surface, an interface or a specimen result in transmitted parallel beams, the transmittance is considered to be direct. This is the case, for example, with flat surfaces or interfaces. DIFFUSED TRANSMITANCE
    [003] If the parallel beams of radiation incident on a surface, an interface or a specimen result in a more or less wide angular distribution of transmitted beams, the transmittance is considered to be diffuse. This is the case, for example, with rough surfaces or interfaces or specimens with granular structure.
    [004] In general, diffuse transmittance depends on the angle of incidence and the wavelength À of the radiation. If the angle of incidence is not explicitly mentioned, the commonly normal incidence is assumed. TOTAL HEMISPHERIC TRANSMITANCE
    [005] The total hemispheric transmittance is obtained by adding the direct transmittance and the diffuse transmittance. T - T, + total diffuse direct T
    [006] In general, the total hemispheric transmittance depends on the angle of incidence and the wavelength À of the radiation. If the angle of incidence is not explicitly mentioned, the commonly normal incidence is assumed. SOLAR TRANSMITANCE Tsoi
    [007] Given a calculated or measured spectrum of the total hemispheric transmittance of a T (À) sample, Tsol solar transmittance is obtained through integration with the Solar spectrum Isol (À):
    where, generally, the solar mass spectrum of air of 1.5 (AM1.5) is used as the Isol intensity (À). VISIBLE REFLECTANCE Rvis
    [008] The visible reflectance Rvis is a measure for the brightness of a surface as it appears to the human eye under certain lighting conditions. A white surface or a perfect mirror exhibits 100% visible reflectance, while colored or gray surfaces exhibit less. The determination of the visible reflectance RVIS is based on the photopic luminous efficiency function V (À) and depends on the choice of the illuminant IILL (À):
    where R (À) is the simulated or measured hemispheric reflectance of the sample. REFLECTION ANGLE
    [009] The reflection angle θr is the angle formed by a ray of light reflected from a surface and a line perpendicular to the surface at the point of reflection. In this document, θI and θt correspond, respectively, to the incidence and transmission angles.
    REFRACTION INDEX AND EXTINGUISHING COEFFICIENT
    [0010] When the light passes through a medium, some part of it will always be absorbed. This can be conveniently taken into account by defining a complex N refractive index: N = n-ik [1] where the real part n (refractive index) indicates the phase velocity, while the imaginary part k (coefficient of extinction) indicates the amount of loss of absorption when the electromagnetic wave propagates through the material. ANTI-REFLECTION
    [0011] A treated surface is considered to be anti-reflective when the solar transmittance of a beam of light in almost normal incidence is greater than for an untreated surface. XYZ COLOR SPACE OF CIE 1931
    [0012] The International Lighting Commission (CIE, Commission Internationale d’Eclairage) described how to quantify colors [2]. All existing colors can be represented on a plane and mapped by Cartesian coordinates, as shown in the CIE Chromaticity Diagrams. Quantification is based on the 1931 CIE Color Matching Functions, x (À), y (À) and z (À), which reflect the color sensitivity of the human eye. These functions depend, to a certain extent, on the width of the observation field (the functions for an opening angle of 2 ° will be used). 1976 CIE COLOR SPACE (L *, A *, B *) (OR CIELAB)
    [0013] The CIE L * a * b * is the most complete color model used, conventionally, to describe all colors visible to the human eye. It was developed for this specific purpose by the International Lighting Commission (Commission Internationale d'Eclairage). The three parameters in the model represent the luminosity of the color (L *, L * = 0 produces black and L * = 100 indicates white), its position between magenta and green (a *, negative values indicate green while positive values indicate magenta) and its position between yellow and blue (b *, negative values indicate blue and positive values indicate yellow). DOMINANT COLOR
    [0014] The dominant wavelength of a color is defined as the wavelength of the monochromatic stimulus which, when additively mixed in suitable proportions with the specified achromatic stimulus, combines with the considered color stimulus [3]. Thus, any color can be reported for an MD monochromatic dominant color defined by its ÀD wavelength. COLOR SATURATION
    [0015] Color saturation is a measure of how different from pure gray the color is. Saturation is not really a matter of light and dark, but of how pale or strong the color is. The saturation of a color is not constant, but it varies depending on what surrounds it and in what light the color is seen and is given by:
    where a * and b * are the color coordinates of CIE under daylight illumination CIE-D65. TECHNICAL STATUS
    [0016] The acceptance of solar energy systems as integrated elements of the construction envelope is mainly limited to its unpleasant visual aspect. They are often considered as technical components to be hidden and confined to roofing applications, when they are less visible and have less impact on the architectural project [4]. The development of better looking solar systems could generate new perspectives for the architectural integration of solar energy systems, for example, as active solar glass facades. One solution is to apply a thin colored interferential film to the inner side of the solar system glazing. The coating reflects a color, thus hiding the technical part of the solar device, but transmits the complementary spectrum. The colored panes based on multiple depositions of thin dielectric films were shown to be of special interest for solar thermal collectors [5 to 8] and were the subject of a PCT application in 2004 [9]. The invention revealed in this PCT application, however, had some weakness in dealing with: - Safety: the invention considered the use of non-tempered, non-laminated glazing that did not satisfy the safety requirements for the installation of the facade. Therefore, the colored designs calculated for the single glazing (exit medium air = 1 exit) are not suitable for laminated glazing (1.45 exit medium polymer <exit <1.6 at 550 nm). - Color stability: in the context of the 2004 PCT application, color was based on a quarter of interferential wave cells that exhibit narrow reflection peaks. By imitating the number of individual layers and choosing the refractive indices of the materials involved, the reasonable amplitudes of the reflection peak were obtained, thus providing excellent solar transmittance to the coating. However, as the narrow reflection peak changes to the shorter wavelength with increasing reflection angle, the previous colors developed (except blue) were dependent on the angle of view / observation / reflection. Example 1 shows a green design that has changed to blue for increasing viewing angles (see Figure 1, Figure 2 and Table 1). - Production on an industrial scale: relatively thick layers of SiO2 (> 100 nm) were needed in the coating piles, thus limiting the speed of production of colored glass on an industrial scale.
    [0017] The PCT order also referred to the possibility of applying a surface treatment (hot patterning, acid etching, sand or stone projections ...) on the outside of the collector glazing in order to create a light transmittance diffuse. This treatment has the effect of reinforcing the masking effect of the technical parts of the solar device, preventing the effects of glare and producing matte surfaces that are in high demand in today's architecture. Among the available diffusive surface treatments, acid etching is undoubtedly the most appropriate and most widely used treatment at the industrial level. Historically, glass acid etching treatments have been carried out using hydrofluoric acid-based solutions [10]. Hydrofluoric acid is a strong chemical agent responsible for several problems in terms of safety, worker health and environmental pollution. For this reason, the use of buffered solutions (in which part of the hydrofluoric acid is replaced by fluoride salts such as ammonium bifluoride) [11-13] or solutions based on fluoride salts [14-15], which are less aggressive and more environmentally friendly, are becoming common. GENERAL DESCRIPTION OF THE INVENTION
    [0018] The problems mentioned in the previous chapter were solved with the present invention, which refers to a solar glazing unit, as defined in the claims. The present innovation deals with colored laminated glazing (preferably, but not exclusively, made of glass) with enhanced masking effect, angular color stability, energy performance and mechanical stability.
    [0019] The colored laminated glazing system is outlined in Figure 3 and can be described as a combination of: - A multi-layered encapsulated colored coating, deposited on the back side of the external glass (Figures 3a and 4a), on the back side or front of a polymeric film that is encapsulated between two panes (Figures 3b and 4b) or on the front side of the inner glass (Figures 3c and 4c). - A diffuse textured or non-textured outer surface. - An optional antireflection coating applied to the back of the inner glass for thermal or PVT applications.
    [0020] While solar thermal or PVT systems are fitted behind or directly glued to the laminated glazing, PV systems are fully integrated into the laminated glazing. 1. COLORFUL COATING
    [0021] The choice of the substrate on which the colored coating is deposited is of primary importance. In order to guarantee maximum efficiency of the solar energy system, the substrate must have a high solar transmittance, thus limiting the possibilities for solar cylinder glass, extra-white flat glass (very low iron content) or polymeric materials such as polyethylene terephthalate (PET), polyethylene naphthalate (PEN), fluorocarbon polymer (PFA, FEP, ETFE, PTFE ...) and so on. The flatness of the surface is also a key issue, especially for facade applications. As no color variation of the interferential coating should be visible, flat white glass and polymer materials, which give more freedom in choosing the nature of the glass, are preferred over solar cylinder glass for the deposition of the colored coating.
    [0022] The colored coating that consists of the interferential cells with multiple layers of transparent layers has to be of high Tsol solar transmittance. Thus, as the absorption in the coating must be minimized, dielectric oxides are preferably chosen. Among the various possibilities, materials such as SiO2, Al2O3, MgO, ZnO, SnO2, HfO2, Nb2O5, Ta2O5 and TiO2 are, for example, perfectly suitable for the invention described in the present.
    [0023] The visible reflectance Rvis is the percentage of light that reaches the glazing that is reflected back and provides information about the masking ability of the glazing. This value must then be high enough to allow a good masking effect on the technical parts of the solar energy system, but low enough to guarantee good solar transmittance. Good agreements have been made between the masking effect and the performance of the solar device. In the context of the invention, Rvis has to be higher than 4%.
    [0024] The intensity of the color is given by its saturation expressed by:
    where * and * are CIE color coordinates under daylight illumination CIE-D65. In order to provide more visible colors, the color saturation must be greater than 8 at an almost normal angle of reflection. An exception is made for gray and brown, which correspond, respectively, to desaturated cold and warm colors.
    [0025] In relation to color stability, improvements have been brought to this document compared to the 2004 PCT order by modifying quarter-wave interference cells in order to obtain asymmetric designs. The consequence of such modifications is to obtain reflectance curves characterized by a large single reflection peak or by several small reflection peaks. Then, the multilayer coating reflects a color that is defined, as a function of the shape of the reflectance curve: - Or through the wavelength of the maximum intensity of a single reflectance peak located in the visible part of the solar spectrum. For example, Figure 5 represents a reflectance curve in normal incidence (viewing angle 0 °) with a maximum intensity at Àmax = 570 nm which corresponds to a dominant yellow-green color for the coating. - Or by combining the wavelengths of 2 or more reflectance peaks located in the visible spectral region. For example, Figure 6 shows a reflectance curve in normal incidence with 3 peaks in the visible part of the spectrum and, respectively, located at 413 nm, 534 nm and 742 nm. The dominant color resulting from the coating considered is located at ÀD = 500 nm (green).
    [0026] With the angle of view increasing, most of the features of the spectra change to shorter wavelengths, inducing a change in the position of Àmax and then in the dominant color of the coating. As an example, the reflectance curves obtained for both the yellow-green and green coating at various reflection angles θr (from 0 ° to 85 °) are given in Figure 7 (a) and (b), respectively.
    [0027] Providing colored glazing with good angular color stability is of great importance for the integration of construction. Great efforts were then made to avoid or limit color variations. The principle of color stability can be explained as follows. Generally, the color M of a layer can be referred to as a mixture of several colors regardless of the shape of its reflectance curve.
    [0028] For clarity, the explanations will be given to a fictitious colored layer characterized by two reflection peaks, in the visible part of the solar spectrum, whose wavelengths and colors are, respectively, ÀI, CI and À2C2 (see Figure 8a ). The color M is defined by a dominant color MD whose ÀMD wavelength is between à1 and à2, its position depends on the relative intensity of both reflection peaks (see Figure 8b). With increasing viewing angles, the reflection peaks change to shorter wavelengths. The change from C1 to C1 'has to be compensated by an equivalent change from C2 to C2' as well as a change in the relative intensity of both peaks in order to maintain the position of point M. At least, point M has to be maintained in the color segment defined by the MMD line. In the latter case, the dominant color of the coating remains the same. This compensation can be achieved by carefully choosing the nature and thickness of the materials of the individual layers that make up the pile of colored interferential cladding.
    [0029] This principle can be extrapolated to more complex designs characterized by more than two reflection peaks (see Figure 9).
    [0030] The green drawings based on this principle are given in Examples 2, 3 and 4 (see Figures 10, 11, 12, 13, 14, 15 and Tables 2, 3 and 4). The color coordinates (x, y) under the CIE-D65 illuminant, the visible reflectance Rvis, the solar transmittance Tsol, the dominant wavelength ÀMD and the color MD and the color saturation Cab * of these 3 coatings are given for different reflection angles. The corresponding graphical displays of color variations are also shown for each drawing. For each drawing, only small variations in color and reflectance (especially for θr up to 60 °) are observed in combination with high solar transmittances (above 80% up to 60 °). The variation in the wavelength of the dominant color observed for these coating designs (9 nm variation between 0 ° and 60 ° for Example 2) is almost 4 times less than for the 2004 PCT application design (Example 1 ).
    [0031] Another disadvantage, at present, compared to the 2004 PCT order [6], is that the relatively thick SiO2 coatings have been replaced by other oxides with greater deposition fleece. In fact, multi-layered interferential batteries are deposited on an industrial scale by in-line sputtering of magnesium. For low-cost production, the number of sublayers and the thickness of the individual layers must be limited.
    [0032] Other examples of coating designs with various colors in reflection (blue, yellow-green, yellowish orange, gray and brown) are given in Examples 5 to 9 (see Figures 16 to 25 and Tables 5 to 9). 2. DIFFUSIVE SURFACE
    [0033] A diffusive surface treatment is applied to the outer surface of the colored laminated glazing. The glass substrate can be either flat white glass or solar cylinder glass. Extra-white flat glass has the advantage of having a better flatness and will be preferred for facade applications. Both types of glass are also commercially available with a wide variety of textures and patterns applied to the outer surface. This type of glass can be used to add some relief and to approximate the appearance of bricks in the case of roof applications.
    [0034] The caustication treatment is applied in order to create the diffuse light transmittance that reinforces the masking effect of the colored filter. It also has the advantage of creating matte surfaces, often desired by architects and to prevent glare effects.
    [0035] By choosing the appropriate compositions of the caustication solution, the favorable micro / nanostructures on the treated glass surface can also cause anti-reflective properties. For example, the treatment of glass surfaces by means of acid etching in buffered solutions [13] leads to a particular structure that combines micrometric islands with nanometric openings, both uniformly distributed. The resulting low-reflectance glass surfaces are then obtained perfectly for the solar applications described in the present.
    [0036] Based on the literature [14 to 15], caustication solutions composed of several of the following components were developed: ammonium bifluoride (ABF), water (H2O), isopropanol (IPA), sugars (sucrose, fructose , etc.). These solutions are particularly effective over a wide range of compositions for treatment times of less than 20 minutes.
    [0037] Examples of effective solutions with a reasonable concentration range are given below: - Solution 1: ABF / IPA / water mixture with the following proportions of 10 to 30% by weight / from 20 to 40% by weight / balance. - Solution 2: ABF / sucrose / water mixture with the following proportions of 15 to 25% by weight / from 15 to 40% by weight / balance.
    [0038] Excellent transmittances have been obtained for the treated glass surfaces thanks to the anti-reflective properties. The normal hemispheric transmittance measured from treated glass surfaces is about 95% compared to 92% for untreated glass (see Figure 26).
    [0039] Figures 27 a) and b) show SEM images of glass surfaces, respectively, structured by an ABF / IPA-based causticization solution (ABF / IPA / H2O = 30/10/60) and by a solution of caustication based on ABF / sucrose (ABF / sucrose / H2O = 18/18/64). Both images were taken for the same caustication time (15 min.) And at the same magnification. In the first case (Figure 27a), the surface is relatively smooth and has some microscale protuberances and grooves that arise from the junction of nanofurts that are present on the entire surface. In the second case (Figure 27b), the surface exhibits a much rougher structure and is densely covered with some type of pyramid. These pyramids have a height of about 10 μm, are defined by different types of polygons as their base area whose dimensions are often around 100 μm to 120 μm and have accentuated nanostructured side walls. The gain measured in solar transmittance can then be explained by anti-reflective properties that result from microscale patterning in combination with a nanoscale roughness modification. 3. TEMPERING AND LAMINATION
    [0040] After the deposition and caustication of the coating, the different glazing is tempered. There is no restriction to perform this heat treatment, as both colored coatings (made of oxides) and diffusive surfaces (mainly SiO2) have very good thermal stability.
    [0041] Then, the panes and, if necessary, other elements (coated polymeric film, crystalline silicon cells ...) are joined by lamination. Lamination polymers are preferably, but not exclusively, elastomer crosslinking products such as EVA (Ethylene-Vinyl-Acetate) or thermoplastic products such as PVB (Polyvinyl Butiral). These products are characterized by high solar transmittances, low refractive indexes and good adhesion to polymer and glass panes.
    [0042] Both treatments are made and combined in order to satisfy the safety requirements for facade applications, but they also provide some advantages. First of all, lamination can offer the possibility of having different supply chains for coating and etching, depending on the chosen configuration (see Figures 3 and 4), thus offering a wide saving of time. In addition, the colored coating is encapsulated, avoiding any color change due to water condensation on the inside of the glazing when mounted on thermal collectors.
    [0043] Another advantage is the good mechanical resistance of laminated glazing that offers: - The possible use of glazing larger than solar thermal or PVT systems that can be directly connected to the rear side of the glazing and then be completely hidden. Since the colored coating is encapsulated, such collectors can be obtained without any color change along the glued collector frame (which is the case when the interferential coating is in direct contact with the lamination polymer or glue). Thermal, PV and PVT systems therefore have exactly the same external appearance. - The possible use of glass for the mechanical fixation of solar devices.
    [0044] These capabilities allow production of multipurpose products that provide considerable flexibility for detailed and facade installations. As an example, Figure 28 shows possible variations for the assembly of solar thermal systems glued behind colored laminated glazing. In Figure 28 a), the solar thermal collectors are glued to the back of the laminated glazing larger than the collector frame. At present, solar collectors are mounted on a roof with overlapping glazing and waterproofing is provided by the presence of seals between two overlapping glazing. The different variations for the installation of solar thermal collectors on a ventilated facade or for a residential facade or for large buildings with glass facades are known, respectively, in Figure 28 (b) and (c). At present, hangers, overlapping wings, fences and so on can be adaptable to the architect's wishes, the type and requirements of the building, the local culture of the country, etc.
    [0045] The same mounting configurations are, of course, possible for photovoltaic devices, but also for hybrid roof and facade installations (combination of thermal and PV devices). 4. OPTIONAL ANTI-REFLECTION COATING
    [0046] In order to increase the solar transmittance of solar thermal devices, an anti-reflective coating can be applied to the rear side of the internal glass (see Figure 3).
    [0047] In fact, a maximum transmittance value of approximately 92% can be achieved for the best quality glass as a reflectance of 4% occurs on both sides of the glass. By applying an anti-reflective coating characterized by a low refractive index (less than 1.52) the reflectance on the glass side can be reduced by approximately 3% in the best case.
    [0048] Ideally, the solar transmittance of the colored laminated glazing can then increase by approximately 3% and then compensate for the transmittance losses due to the presence of the interferential colored coating. REFERENCES [1] H.A. McLeod, Thin Film Optical Filters, American-Elsevier, New York, 1969. [2] CIE International Lighting Commission, 1986. Colorimetry. CIE Publication 15.2., 2nd edition, ISBN 3-900-734-00-3, Vienna [3] CIE Technical Report (2004) Colorimetry, 3rd edition. Publication 15: 2004 [4] M. Munari Probst and C. Roecker, "Towards an improved architectural quality of building integrated solar thermal systems (BIST)", Solar Energy, volume 81, September 2007, pages 1,104 to 1,116. [5] A. Schüler, C. Roecker, J.-L. Scartezzini, J. Boudaden, I.R. Videnovic, R.S.-C. Ho, P. Oelhafen, Sol. Energy Mater. Sol. Cells 84 (2004) 241. [6] J. Boudaden, RSC Ho, P. Oelhafen, A. Schüler, C. Roecker, J.-L. Scartezzini, Solar Energy Materials & Solar Cells 84, 225 (2004) . [7] A. Schüler, C. Roecker, J. Boudaden, P. Oelhafen, J.-L. Scartezzini, Solar Energy 79, 122 (2005). [8] A. Schüler, J. Boudaden, P. Oelhafen, E. De Chambrier, C. Roecker, J.-L. Scartezzini, Solar Energy Materials & Solar Cells 89, 219 (2005). [9] A. Schüler, PCT International Publication WO 3004/079278 A1 (2004). [10] H. Niederprüm, H. G. Klein, J.-N. Meussdoerffer, US Patent 4055458 (1977). [11] N. Enjo, K. Tamura, US Patent 4582624 (1986). [12] G. E. Blonder, B. H. Johnson, M. Hill, US Patent 5091053 (1992). [13] D. C. Zuel, J.-H. Lin, US Patent 5,120,605 (1992). [14] S. H. Gimm, J. H. Kim, US Patent 5281350 (1994). [15] H. Miwa, US Patent 7276181 B2 (2007). LIST OF FIGURE LEGENDS FIGURE 1:
    [0049] Angular dependence of 1931 CIE (x, y) color coordinates under CIE-D65 illuminant of the colored design given in Example 1. FIGURE 2:
    [0050] Reflection curves of the coating design given in Example 1 for various reflection angles (from 0 ° to 85 °). FIGURE 3:
    [0051] Schematic drawings of possible configurations of colored laminated glazing for thermal and PVT applications. The colored coating can be deposited (a) on the back side of the outer glass, (b) on one side of a polymeric film that is encapsulated between two panes, (c) on the front side of the inner glass. FIGURE 4:
    [0052] Schematic drawings of possible configurations of colored laminated glazing for PV applications. The colored coating can be deposited (a) on the back side of the outer glass, (b) on one side of a polymeric film that is encapsulated between two panes, (c) on the front side of the inner glass. At present, the technical parts of the PV device are fully integrated into the laminated glazing. FIGURE 5:
    [0053] Standard photopic light efficiency function 1988 C.I.E. which delimits the part of the solar spectrum that is visible to the human eye and the reflectance curve in the normal view (0 ° angle of view) of a yellow-green coating (Àmáx = 570 nm) that presents a single peak of reflection. FIGURE 6:
    [0054] Standard photopic light efficiency function 1988 C.I.E. which delimits the part of the solar spectrum that is visible to the human eye and the reflectance curve in the normal view (0 ° angle of view) of a green coating (ÀD = 500 nm) that has three reflection peaks in the visible part of the solar spectrum (bulky part of the curve). FIGURE 7: (a) Reflection curves of a yellow-green coating for various reflection angles (from 0 ° to 85 °). The reflection peak located in the visible part of the spectrum changes to shorter wavelengths: Àmax varies from Àmax 0 ° = 570 nm to Àmax 60 ° = 500 nm leading to a color change in the coating from yellow-green to green. (b) Same representation for a green coating design that has three reflection peaks in the visible part of the solar spectrum. FIGURE 8: (a) Graphical representation of a fictitious reflectance curve composed of two reflection peaks in the visible part of the solar spectrum. Ai, Ci and A2, C2 are the wavelengths and colors of the reflectance peaks at a low viewing angle. Ai ’, Ci’ and A2 ’, C2’ are the corresponding wavelengths and colors at a greater angle of observation. The dominant color MD of the coating is located in AD between Ai and A2, and its position depends on the relative intensity of both reflection peaks. (b) Principle of color stability represented in the chromaticity diagram of i93i C.I.E. M is the color resulting from a coating characterized by 2 reflection peaks, in the visible part of the solar spectrum, defined by Ci and C2 at a low angle of view. C1 ’and C2’ are the corresponding colors for the larger viewing angle. MD is the dominant color of M. FIGURE 9: (a) Graphical representation of a fictitious reflectance curve composed of three reflection peaks in the visible part of the solar spectrum. Ai, Ci A2 C2, and A3, C3 are the wavelengths and colors of the reflectance peaks at low angle of view. Ai, Ci, A2, C2 and A3, C3 are the corresponding wavelengths and colors at the highest viewing angles. The dominant color MD of the coating is located in AD whose position depends on the relative intensity of all the reflection peaks. (b) Principle of color stability represented in the i93i C.I.E chromaticity diagram. M is the color resulting from a coating characterized by 3 reflection peaks, in the visible part of the solar spectrum, defined by Ci, C2 and C3 in a low angle of view. C1 ’, C2’ and C3 ’are the corresponding colors for the larger viewing angle. MD is the dominant color of M. FIGURE 10:
    [0055] Angular stability of i93i CIE (x, y) color coordinates under CIE-D65 illuminant of the colored drawing given in Example 2. FIGURE 11:
    [0056] Reflection curves of the coating design given in Example 2 for various reflection angles (from 0 ° to 85 °). FIGURE 12:
    [0057] Angular stability of 1931 CIE (x, y) color coordinates under CIE-D65 Illuminant of the colored drawing given in Example 3. FIGURE 13:
    [0058] Reflection curves of the coating design given in Example 3 for various reflection angles (from 0 ° to 85 °). FIGURE 14:
    [0059] Angular stability of 1931 CIE (x, y) color coordinates under the CIE-D65 Illuminator of the colored drawing given in Example 4. FIGURE 15:
    [0060] Reflection curves of the coating design given in Example 4 for various reflection angles (from 0 ° to 85 °). FIGURE 16:
    [0061] Angular stability of 1931 CIE (x, y) color coordinates under the CIE-D65 Illuminant of the colored drawing given in Example 5. FIGURE 17:
    [0062] Reflection curves of the coating design given in Example 5 for various reflection angles (from 0 ° to 85 °). FIGURE 18:
    [0063] Angular stability of 1931 CIE (x, y) color coordinates under the CIE-D65 illuminant of the colored drawing given in Example 6. FIGURE 19:
    [0064] Reflection curves of the coating design given in Example 6 for various reflection angles (from 0 ° to 85 °). FIGURE 20:
    [0065] Angular stability of 1931 CIE (x, y) color coordinates under the CIE-D65 illuminant of the colored drawing given in Example 7. FIGURE 21:
    [0066] Reflection curves of the coating design given in Example 7 for various reflection angles (from 0 ° to 85 °). FIGURE 22:
    [0067] Angular stability of 1931 CIE (x, y) color coordinates under the CIE-D65 illuminant of the colored drawing given in Example 8. FIGURE 23:
    [0068] Reflection curves of the coating design given in Example 8 for various reflection angles (from 0 ° to 85 °). FIGURE 24:
    [0069] Angular stability of 1931 CIE (x, y) color coordinates under the CIE-D65 illuminant of the colored drawing given in Example 9. FIGURE 25:
    [0070] Reflection curves of the coating design given in Example 9 for various reflection angles (from 0 ° to 85 °). FIGURE 26:
    [0071] Measurements of normal hemispheric transmittance of etched glass through solution 1 (ABF / IPA / H2O = 30/10/60 - 15 min. Etching time), etched glass through solution 2 (ABF / sucrose / H2O = 18/18/64 - 15 min etching time) and an untreated glass. Normal hemispheric transmittance is around 95% for both etched glasses and around 92% for untreated glass. FIGURE 27:
    [0072] SEM images of glass surfaces structured by ABF-based etching solutions: (a) ABF / IPA / H2O = 30/10/60 - 15 min. caustication time (b) ABF / sucrose / H2O = 18/18/64 - 15 min. caustication time. FIGURE 28:
    [0073] Possible variations for the installation of solar thermal or PVT systems glued behind colored laminated glazing: (a) example of installation on a roof with glazing overlap, (b) example of installation for ventilated residential façade, (c) example of adaptation for large buildings with glass facades. EXAMPLES OF COATING DRAWINGS EXAMPLE 1 air // 136 nm L / 222 nm H // glass // 222 nm H / 136 nm L // air with nH = 1.54 and nL = 1.8 EXAMPLE 2 air // glass // 30 nm H / 25 nm L / 320 nm H // polymer with nH = 2.4 and nL = 1.65 EXAMPLE 3 air // glass // 185 ± 12 nm H / 25 ± 12 nm L / 35 ± 12 nm H / 35 ± 12 nm L / 130 ± 12 nm H // polymer with nH = 2.4 and nL = 2.0 EXAMPLE 4 air // glass // 160 ± 12 nm H / 130 ± 12 nm L / 65 ± 12 nm H / 25 ± 12 nm L / 70 ± 12 nm H / 160 ± 12 nm L / 100 ± 12 nm H // polymer with nH = 2.2 and nL = 2.0 EXAMPLE 5 air // glass // 45 ± 12 nm H / 70 ± 12 nm L / 45 ± 12 nm H // polymer with nH = 2.0 and nL = 1.65 EXAMPLE 6 air // glass // 175 ± 12 nm H / 85 ± 12 nm L / 50 ± 12 nm H / 25 ± 12 nm L / 300 ± 12 nm H // polymer with nH = 2.4 and nL = 2.0 EXAMPLE 7 air // glass // 120 ± 12 nm H / 120 ± 12 nm L / 95 ± 12 nm H / 90 ± 12 nm L / 90 ± 12 nm H / 95 ± 12 nm L / 100 ± 12 nm d and H // polymer with nH = 2.0 and nL = 1.65 EXAMPLE 8 air // glass // 40 ± 12 nm of H / 75 ± 12 nm of L // polymer with nH = 2.4 and nL = 1.65 EXAMPLE 9 air // glass // 50 ± 12 nm H / 90 ± 12 nm L / 65 ± 12 nm H / 55 ± 12 nm L // polymer with nH = 2.4 and nL = 2.0
    权利要求:
    Claims (24)
    [0001]
    1. Laminated glazing unit for the architectural integration of solar energy systems comprising a substrate bounded by two main faces and an interference filter with multiple layers also bounded by two main faces and is adapted to be in contact with a main face with the said substrate and on the other main face with a lamination polymer; said substrate being in contact with an incident medium that has a refractive index ninc = 1 and has a refractive index nsubstrate defined as follows: 1.45 <nsubstrate <1.6 at 550 nm and said polymer lamination is considered as the output medium whose refractive index is defined as follows 1.45 <exit <1.6 at 550 nm; and characterized by the fact that a light output side of said unit is connected to a solar thermal, photovoltaic (PV) or thermal-photovoltaic (PVT) system, and said unit is designed in such a way that the following requirements are met : 1a) Color saturation, given by
    [0002]
    2. Glazing unit, according to claim 1, characterized by the fact that it comprises a rough external surface of light diffusion obtained through chemical treatment, such as acid etching.
    [0003]
    3. Glazing unit, according to any of the preceding claims, characterized by the fact that it uses acid etching treatment leading to the anti-reflective properties of the external surface and, therefore, intensifying the optical properties of the system: the solar transmittance of a light beam in normal incidence is approximately 3% larger for the etched surface than for an untreated surface.
    [0004]
    4. Glazing unit, according to any of the preceding claims, characterized by the fact that it has texturization of the internal surface to add some relief and obtain a closer appearance of tiles in the case of ceiling applications.
    [0005]
    5. Glazing unit, according to any one of the preceding claims, characterized by the fact that it has anti-reflective coating applied to the back side of the laminated glazing in order to enhance the optical properties of the system for solar thermal applications: the solar transmittance of a beam of light in normal incidence is approximately 3% higher for the surface on which the anti-reflective coating is applied than for an untreated surface.
    [0006]
    Glazing unit according to any one of the preceding claims, comprising a solar cylinder glass, an extra-white flat glass (iron content <120 ppm) or polymeric materials (PET, PEN, PFA, FEP, ETFE, PTFE ...), characterized by the fact that it has a solar transmittance greater than 90% and suitable for maximum efficiency of the solar energy system.
    [0007]
    7. Glazing unit, according to any one of the preceding claims, characterized by the fact that it uses elastomer crosslinking polymers, such as EVA, thermoplastic products, such as PVB, or ionoplastic polymers to join the glass or polymeric glazing through lamination and where the solar transmittance of the unit is greater than 92% for a polymer thickness of 0.4 to 0.5 mm.
    [0008]
    8. Glazing unit, according to any one of the preceding claims, characterized by the fact that said interferential filter is an interferential stack with multiple layers of up to 9, up to 400 nm in thickness of dielectric layers with low absorption expressed by the coefficient of extinction k <0.2 for À wavelengths at 450 nm <À <2,500 nm.
    [0009]
    Glazing unit according to any one of claims 1 to 8, characterized in that said interference filter has a green reflection deposited on a glass or polymer substrate with 1.45 <substrate <1, 6 at 550 nm and composed of 3 sublayers based on material with a low refractive index L with 1.4 <nL <2.2 to 550 nm and material with a high refractive index H with 1.8 <nH <2.5 at 550 nm; the general design being: incident medium air // substrate // 30 ± 12 nm of H / 25 ± 12 nm of L / 320 ± 12 nm of H / // polymer of exit medium.
    [0010]
    10. Glazing unit according to any one of claims 1 to 9, characterized in that said interference filter has a green reflection deposited on a glass or polymer substrate with 1.45 <substrate <1, 6 to 550 nm and composed of 5 sublayers based on material with a low refractive index L with 1.4 <nL <2.2 to 550 nm and material with a high refractive index H with 1.8 <nH <2.5 at 550 nm; the general design being: incident medium air // substrate // 185 ± 12 nm H / 25 ± 12 nm L / 35 ± 12 nm H / 35 ± 12 nm L / 130 ± 12 nm H // polymer of exit medium.
    [0011]
    11. Glazing unit according to any one of claims 1 to 10, characterized in that said interference filter has a green reflection deposited on glass or polymer substrate with 1.45 <substrate <1.6 at 550 nm and composed of 7 sublayers based on material with a low refractive index L with 1.4 <nL <2.2 at 550 nm and material with a high refractive index H with 1.8 <nH <2.5 a 550 nm; the general design being: incident medium air // substrate // 160 ± 12 nm H / 130 ± 12 nm L / 65 ± 12 nm H / 25 ± 12 nm L / 70 ± 12 nm H / 160 ± 12 nm L / 100 ± 12 nm H // polymer of outlet medium.
    [0012]
    12. Glazing unit according to any one of claims 1 to 10, characterized in that it comprises an interference filter with blue reflection deposited on glass or polymer substrate with 1.45 <substrate <1.6 a 550 nm and composed of 3 sublayers based on material with a low refractive index L with 1.4 <nL <1.8 to 550 nm and material with a high refractive index H with 1.8 <nH <2.5 to 550 nm; whereby the multilayer design corresponds, hereby, to: incident medium air // substrate / 45 ± 12 nm H / 70 ± 12 nm L / 45 ± 12 nm H // polymer medium exit.
    [0013]
    Glazing unit according to any one of claims 1 to 10, characterized in that it comprises an interference filter with yellow-green reflection deposited on glass or polymer substrate with 1.45 <substrate <1, 6 at 550 nm and composed of 5 sublayers based on material with a low refractive index L with 1.65 <nL <2.1 to 550 nm and material with a high refractive index H with 1.8 <nH <2.5 at 550 nm; the multi-layered design correspondingly corresponds to: incident medium air // substrate / 175 ± 12 nm from H / 85 ± 12 nm from L / 50 ± 12 nm from H / 25 ± 12 nm from L / 300 ± 12 nm H // polymer of outlet medium.
    [0014]
    Glazing unit according to any one of claims 1 to 10, characterized in that it comprises an interference filter with yellowish-orange reflection deposited on glass or polymer substrate with 1.45 <substrate <1.6 at 550 nm and composed of 7 sublayers based on material with a low refractive index L with 1.4 <nL <1.8 at 550 nm and material with a high refractive index H with 1.8 <nH <2.5 a 550 nm; the multi-layered design correspondingly corresponds to: incident medium air // substrate / 120 ± 12 nm H / 120 ± 12 nm L / 95 ± 12 nm H / 90 ± 12 nm L / 90 ± 12 nm H / 95 ± 12 nm L / 100 ± 12 nm H // polymer of exit medium.
    [0015]
    Glazing unit according to any one of claims 1 to 10, characterized in that it comprises an interference filter with gray reflection deposited on glass or polymer substrate with 1.45 <substrate <1.6 a 550 nm and composed of 2 sublayers based on material with a low refractive index L with 1.4 <nL <1.8 to 550 nm and material with a high refractive index H with 1.8 <nH <2.5 to 550 nm; the multi-layered design correspondingly corresponds to: incident medium air // substrate // 40 ± 15 nm H / 75 ± 30 nm L // outlet medium polymer.
    [0016]
    16. Glazing unit according to any one of claims 1 to 10, characterized by the fact that it comprises an interference filter with brown reflection deposited on glass or polymer substrate with 1.45 <substrate <1.6 a 550 nm and composed of 4 sublayers based on material with a low refractive index L with 1.65 <nL <2.1 to 550 nm and material with a high refractive index H with 1.8 <nH <2.5 to 550 nm; the multi-layer design correspondingly corresponds to: incident medium air // substrate // 50 ± 12 nm H / 90 ± 12 nm L / 65 ± 12 nm H / 55 ± 12 nm L // polymer of exit medium.
    [0017]
    17. Glazing unit, according to any one of the preceding claims, characterized by the fact that it comprises one or more panes that are heat-treated (heat-reinforced or completely tempered) for security in the application of the facade.
    [0018]
    18. Solar energy system, characterized by the fact that it comprises laminated glazing, as defined in any of the preceding claims.
    [0019]
    19. Solar energy system, according to claim 18, characterized by the fact that it comprises a thermal collector and in which the glazing is directly glued to the solar thermal collector.
    [0020]
    20. Solar energy system, according to claim 19, characterized by the fact that the solar glazing is larger than the collector frame.
    [0021]
    21. Solar energy system according to claim 18, characterized by the fact that a PV system with an active system (silicon cells, thin PV films, contacts, rear reflector ...) is completely integrated in the glazing laminate.
    [0022]
    22. Sunroof or building facade, characterized by the fact that it comprises a solar energy system, as defined in any one of claims 18 to 21.
    [0023]
    23. Sunroof or building facade, according to the previous claim, characterized by the fact that the solar energy system is suspended by fixings attached to the glazing.
    [0024]
    24. Sunroof or building facade, according to claim 22 or 23, characterized by the fact that it has an overlap of the laminated glazing.
    类似技术:
    公开号 | 公开日 | 专利标题
    BR112015006028B1|2021-03-09|laminated glazing unit, solar power system and sunroof or building facade
    BR112013033259B1|2020-11-24|spectrally selective panel
    RU2406703C2|2010-12-20|Antireflection heat insulated glasing articles
    EP2994940B1|2017-06-28|Solar photovoltaic module
    KR20080089351A|2008-10-06|Transparent substrate provided with an antireflective coating
    JP2016500799A5|2016-11-04|
    JP2020511781A|2020-04-16|Glazing unit, manufacturing method thereof, and use thereof
    Jonsson et al.2010|The effect on transparency and light scattering of dip coated antireflection coatings on window glass and electrochromic foil
    EP2898534B1|2021-11-24|Interference filter with angular independent orange colour of reflection and high solar transmittance, suitable for roof-integration of solar energy systems
    US20210184624A1|2021-06-17|Facade elements with patterned cover plate and optical interference layer
    KR20210033044A|2021-03-25|Solar module with patterned cover plate and optical interference layer
    BR112019012722A2|2019-11-26|low emissivity coating for a glass substrate
    WO2020020019A1|2020-01-30|Solar module with patterned cover plate and optical interference layer
    CN208045521U|2018-11-02|A kind of colored solar component and solar energy curtain wall
    US20210206146A1|2021-07-08|Laminated glazing with coloured reflection and high solar transmittance, and solar energy systems employing the same
    WO2021052456A1|2021-03-25|Method for processing a transparent cover plate and cover plate
    CN210607294U|2020-05-22|Copper indium gallium selenide solar cell for BIPV
    CN210628330U|2020-05-26|Photovoltaic cover plate glass for copper indium gallium selenide battery
    KR20210092626A|2021-07-26|Solar cell panel
    WO2021151373A1|2021-08-05|Colored facade element with composite pane structure
    KR20210092034A|2021-07-23|Solar cell panel
    Al-Assadi et al.2013|Theoretical simulation and design of multilayer interference filters based on MgF2/SiO2 for colored glazed thermal solar collectors
    Xu et al.0|Tunable and Angle-Insensitive Structural Coloring of Solar Cell Modules for High Performance Building-Integrated Photovoltaic Application
    ES1073302U|2010-11-30|Plate for coating with photovoltaic properties |
    同族专利:
    公开号 | 公开日
    DK2897795T3|2020-07-20|
    LT2897795T|2020-07-27|
    AU2013319925A1|2015-04-02|
    JP6242902B2|2017-12-06|
    CN104736338B|2016-09-07|
    ES2805529T3|2021-02-12|
    WO2014045141A3|2014-05-15|
    BR112015006028A2|2017-07-04|
    WO2014045141A2|2014-03-27|
    CN104736338A|2015-06-24|
    EP2897795B9|2020-10-28|
    EP2897795B1|2020-04-22|
    US20190081588A1|2019-03-14|
    JP2016500799A|2016-01-14|
    US10953635B2|2021-03-23|
    HRP20201041T1|2020-10-16|
    PT2897795T|2020-07-01|
    EP2897795A2|2015-07-29|
    US20150249424A1|2015-09-03|
    HK1208844A1|2016-03-18|
    AU2013319925B2|2017-03-02|
    PL2897795T3|2020-11-02|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3573156A|1968-12-03|1971-03-30|William W Reilly|Glass front building panel comprising outer glass layers and inner felt layer|
    DE2256441C3|1972-11-17|1978-06-22|Flachglas Ag Delog-Detag, 8510 Fuerth|Color-neutral, heat-reflecting pane and its use in laminated safety panes and double panes when viewed through and from above|
    US4055458A|1975-08-07|1977-10-25|Bayer Aktiengesellschaft|Etching glass with HF and fluorine-containing surfactant|
    US4273098A|1979-01-02|1981-06-16|General Electric Company|Transparent composite laminar structure, solar collector and method|
    JPS6219509B2|1983-08-10|1987-04-28|Daikin Kogyo Co Ltd|
    JPS62213283A|1986-03-14|1987-09-19|Seiko Epson Corp|Solar cell|
    US5332888A|1986-08-20|1994-07-26|Libbey-Owens-Ford Co.|Sputtered multi-layer color compatible solar control coating|
    US4896928A|1988-08-29|1990-01-30|Coherent, Inc.|Chromatically invariant multilayer dielectric thin film coating|
    US5120605A|1988-09-23|1992-06-09|Zuel Company, Inc.|Anti-reflective glass surface|
    US4944986A|1988-09-23|1990-07-31|Zuel Company|Anti-reflective glass surface|
    US5091053A|1990-02-28|1992-02-25|At&T Bell Laboratories|Matte finishes on optical fibers and other glass articles|
    US5318830A|1991-05-29|1994-06-07|Central Glass Company, Limited|Glass pane with reflectance reducing coating|
    KR950002233B1|1992-08-14|1995-03-15|김태환|Glass etching composition and method for etching glass surface therewith|
    US6391400B1|1998-04-08|2002-05-21|Thomas A. Russell|Thermal control films suitable for use in glazing|
    FR2779839B1|1998-06-10|2003-06-06|Saint Gobain Vitrage|ELECTRICALLY CONTROLLED SYSTEM WITH VARIABLE OPTICAL PROPERTIES|
    WO2002053508A1|2000-12-27|2002-07-11|Hiroshi Miwa|Method for preparing decorative glass using glass etching composition|
    WO2004079278A1|2003-03-06|2004-09-16|Ecole Polytechnique Federale De Lausanne |Glazing|
    JP4122010B2|2004-11-12|2008-07-23|東海光学株式会社|Infrared light emitter / receiver|
    US8058549B2|2007-10-19|2011-11-15|Qualcomm Mems Technologies, Inc.|Photovoltaic devices with integrated color interferometric film stacks|
    FR2925483B1|2007-12-20|2010-01-08|Saint Gobain|DECORATIVE GLAZING.|
    FR2939162A1|2008-12-01|2010-06-04|Saint Gobain|SOLAR ROOF|
    TW201040299A|2009-05-05|2010-11-16|Fraunhofer Ges Forschung|Layer system having barrier properties and a structured conductive layer, method for producing the same, and use of such a layer system|
    LT2897795T|2012-09-20|2020-07-27|Swissinso Sa|Laminated glazing with coloured reflection and high solar transmittance suitable for solar energy systems|
    CN106233168B|2014-04-10|2019-09-17|瑞士Csem电子显微技术研发中心|Infrared transmission cover board|US6216388B1|1998-04-07|2001-04-17|Gene W. Miller|Dissolving polymer plug for introducing nutrients and medicinal materials into tree trunks|
    US6180088B1|1998-11-17|2001-01-30|Nihon Nohyaku Co., Ltd.|Foamable aerosol agricultural-chemical composition and method of controlling diseases and insect pests|
    LT2897795T|2012-09-20|2020-07-27|Swissinso Sa|Laminated glazing with coloured reflection and high solar transmittance suitable for solar energy systems|
    CN106415334B|2014-04-10|2019-09-17|瑞士Csem电子显微技术研发中心|Solar photovoltaic assembly|
    CN106233168B|2014-04-10|2019-09-17|瑞士Csem电子显微技术研发中心|Infrared transmission cover board|
    WO2017160324A1|2016-03-15|2017-09-21|Guardian Industries Corp.|Grey colored heat treatable coated article having low solar factor value|
    DE102017203105B4|2017-02-27|2019-05-16|Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.|Glazing unit, process for their preparation and their use|
    CN109920866A|2017-12-12|2019-06-21|中国南玻集团股份有限公司|Integrative color photovoltaic component, preparation method and application|
    CN107986635A|2017-12-26|2018-05-04|中建材蚌埠玻璃工业设计研究院有限公司|A kind of preparation method of anti-reflection anti-dazzle glas coating liquid and anti-dazzle glas|
    CN108565308B|2018-05-07|2020-01-24|安徽秦能光电有限公司|Photovoltaic cell assembly and manufacturing method thereof|
    FR3084524A1|2018-07-30|2020-01-31|Total Sa|PROCESS FOR PRODUCING A FLEXIBLE LAMINATE OF PHOTOVOLTAIC CELLS|
    FR3089347B3|2018-12-03|2020-12-04|Total Solar|Manufacturing process of a flexible laminate of photovoltaic cells|
    CN109860316B|2019-01-31|2020-11-03|光之科技发展有限公司|Power generation board adopting optical regulation and control layer and preparation method thereof|
    EP3795924A1|2019-09-20|2021-03-24| Bengbu Design & Research Institute for Glass Industry Co., Ltd.|Cover plate and method for machining a transparent cover plate|
    EP3859795A1|2020-01-28|2021-08-04| Bengbu Design & Research Institute for Glass Industry Co., Ltd.|Coloured plate-shaped component with structured cover plate and colour filter layer|
    EP3858606A1|2020-01-28|2021-08-04| Bengbu Design & Research Institute for Glass Industry Co., Ltd.|Coloured façade element with composite panel structure|
    FR3108785A1|2020-03-24|2021-10-01|Saint-Gobain Glass France|BIPV INTEGRATING A TRANSPARENT OR TRANSLUCENT ELEMENT WITH DIFFUSED REFLECTION|
    EP3923465A4|2020-06-04|2021-12-15|Ursing Jakob Wendt|A camouflaged bipv|
    法律状态:
    2018-03-27| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
    2018-03-27| B25A| Requested transfer of rights approved|Owner name: SWISSINSO HOLDING INC. (US) |
    2019-11-19| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
    2020-12-29| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2021-03-09| B16A| Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 29/08/2013, OBSERVADAS AS CONDICOES LEGAIS. |
    2022-01-11| B25A| Requested transfer of rights approved|Owner name: KROMATIX SA (CH) |
    优先权:
    申请号 | 申请日 | 专利标题
    IB2012055000|2012-09-20|
    IBPCT/IB2012/055000|2012-09-20|
    PCT/IB2013/058115|WO2014045141A2|2012-09-20|2013-08-29|Laminated glazing with coloured reflection and high solar transmittance suitable for solar energy systems|
    [返回顶部]