WO2015114274A1 - Vitrage facile a nettoyer comprenant une couche externe a base d'oxyde d'étain et de zinc - Google Patents
Vitrage facile a nettoyer comprenant une couche externe a base d'oxyde d'étain et de zinc Download PDFInfo
- Publication number
- WO2015114274A1 WO2015114274A1 PCT/FR2015/050222 FR2015050222W WO2015114274A1 WO 2015114274 A1 WO2015114274 A1 WO 2015114274A1 FR 2015050222 W FR2015050222 W FR 2015050222W WO 2015114274 A1 WO2015114274 A1 WO 2015114274A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- layer
- tin
- oxide
- glazing
- zinc
- Prior art date
Links
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
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/22—Surface treatment of glass, not in the form of fibres or filaments, by coating with other inorganic material
- C03C17/23—Oxides
- C03C17/245—Oxides by deposition from the vapour phase
- C03C17/2453—Coating containing SnO2
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
- C03C17/3411—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions with at least two coatings of inorganic materials
- C03C17/3417—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions with at least two coatings of inorganic materials all coatings being oxide coatings
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2217/00—Coatings on glass
- C03C2217/20—Materials for coating a single layer on glass
- C03C2217/21—Oxides
- C03C2217/23—Mixtures
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2217/00—Coatings on glass
- C03C2217/70—Properties of coatings
- C03C2217/76—Hydrophobic and oleophobic coatings
-
- 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
- C03C2218/00—Methods for coating glass
- C03C2218/10—Deposition methods
- C03C2218/15—Deposition methods from the vapour phase
- C03C2218/154—Deposition methods from the vapour phase by sputtering
- C03C2218/156—Deposition methods from the vapour phase by sputtering by magnetron sputtering
Definitions
- the invention relates to a glazing incorporating a glass substrate comprising on at least a portion of its surface a moisture resistant coating and easy to clean.
- these glass substrates are, in a known manner, coated for the most part with hydrophobic layers of the silicone or fluorinated molecule type.
- the contact angle ⁇ which makes it possible to evaluate the more or less hydrophobic nature of a surface placed in a horizontal position and -
- the sliding volume which evaluates more directly the propensity of a drop to slide along the glazing wall in inclined or vertical position, taking into account in particular the surface state of the latter (in particular the roughness and the chemical homogeneity of said surface).
- contact angle is meant the angle formed by the surface of the substrate and the tangent to the drop at the meeting point between the air, the drop and the substrate.
- Organic coatings made of silicone or comprising fluorinated molecules have the best hydrophobicity performance in the sense previously described.
- the glass which has no barrier layer corrodes very quickly over time, causing an increase in the roughness of its surface.
- the glass surface is subsequently more and more difficult to clean because of the incrustation of limestone in the roughened surface.
- the hydrophobic coatings are not hardenable, which forces them to be deposited after the step of tempering the glazing, which aims to make the latter resistant to shocks, and therefore after the cutting of the glass panels to final dimensions. This obviously causes an additional cost, and most often implies that the deposit is made in glass transformers while they are not necessarily equipped for it.
- the conventional hydrophobic coatings described above have limited effectiveness on deposition of dirt on the glass surface, have a relatively limited life span, ranging from a few months to a few years, and ultimately imply limited protection against corrosion. in time.
- DLC-coated glazing is currently marketed as showerguard®. It is indicated that this layer makes it easier to clean the glass and to make it resistant to limescale.
- the hydrophobic layer DLC has an initial contact angle ⁇ of 70 ° and is indicated as being heatable in the sense previously indicated, that is to say that it is no longer necessary to deposit this layer after the quenching step of its glass support.
- the first disadvantage of this DLC layer is related to quenching, which is made possible only by the addition of three layers over the DLC layer for its protection: a dense layer sensitive to acid attack, a dense barrier layer with oxygen and a scratch resistant polymer layer.
- the plastic layer is removed manually just before the quenching step, and requires specific cutting tools.
- the two dense layers are removed after quenching with a vinegar cleaning, which also requires specific tools.
- Obtaining the final monolayer product via an initial four-layer product thus ultimately proves to be a complex and expensive process.
- Another disadvantage of the layer appears to be its yellow coloration, due to the absorption by the DLC layer of part of the visible radiation.
- the invention therefore aims to provide a glazing which, during its transformation, its life and its use, does not have the aforementioned drawbacks, in particular the appearance of corrosion, the coloring of the glazing, the accumulation limestone on its surface and the use of specific tools for processing, and which is easily cleaned.
- the invention also proposes to provide a glazing whose manufacture is simple and inexpensive, incorporating a coating that can undergo the step of quenching its glass support without damage or significant degradation of its properties. More specifically, the invention relates to a glazing unit for a humid environment comprising a glass substrate coated on at least a portion of its surface with an oxide layer, said layer being single or the last layer of a stack consisting of layers. of dielectric materials, characterized in that said layer is a zinc oxide and tin.
- layer of dielectric material conventionally means a layer consisting of a material that does not conduct, or substantially does not conduct, the electric current, thus excluding metal layers.
- zinc oxide and tin oxide means that the oxide essentially comprises cations of zinc and tin atoms, without excluding other cations, in particular other metal atoms.
- the oxide essentially comprises cations of zinc and tin atoms, without excluding other cations, in particular other metal atoms.
- Al, Ga, In, B, Y, La, Ge, Si, P, As, Sb, Bi, Ce, Ti, Zr, Nb and Ta can be present in a very minor amount compared to the sum of zinc and tin atoms, for example in an amount less than 10% of said sum, or even less than 5% of said sum.
- the insertion of such cations may in particular be intended to promote the deposition of the oxide layers on the substrate by magnetron techniques, as indicated in the application WO 00/24686.
- the tin oxide and zinc oxide layer is deposited by magnetic field assisted sputtering (magnetron) and therefore has a high density, especially greater than 90% of the theoretical density
- zinc oxide and tin has a Sn / Zn molar ratio of between 30/70 and 70/30.
- said Sn / Zn molar ratio is between 35/65 and 60/40 and very preferably said Sn / Zn molar ratio is between 40/60 and 50/50.
- the tin oxide and zinc oxide layer has a thickness of between 5 and 100 nm.
- the layer has a thickness of between 10 and 50 nm.
- the layer has a thickness of less than 30 nm, or even less than 25 nm or even less than 20 nm.
- said layer of tin oxide and zinc is unique and deposited directly on the glass substrate.
- the layer according to the invention has several roles, it is easy to clean (“easy-to-clean” function according to the terms used in the field) and anti-corrosion (function of preventing corrosion of the substrate), without need to associate any other layer with it.
- the layer is also hydrophobic.
- the invention also relates to a glazing as described above and having undergone a quenching to make it mechanically resistant.
- a toughened glazing unit according to the invention is obtained by heating-quenching of a glazing unit as previously described, in which the tin oxide and zinc oxide layer is unique, so that the Sn ratio Zn in said layer is between 99/1 and 75/25, preferably between 98/2 and 80/20.
- the invention also relates to the use of a glazing unit as described above arranged in a humid environment in which drops of water are intended to form on the glazing.
- the invention also relates to a method for obtaining a glazing unit as previously described.
- Said method makes it possible to obtain a tempered and / or curved glazing unit, comprising a glass substrate coated on at least a part of its surface with an oxide layer comprising tin and zinc, said layer being single or the last layer of a stack of layers of dielectric materials.
- Said method comprises the steps of depositing the layer stack or said layer on said substrate by a vacuum deposition technique such as magnetic field assisted sputtering and performing the quenching and / or bending heat treatment. the substrate thus coated with the oxide layer comprising tin and zinc or the stack comprising the same.
- the inventors have unexpectedly demonstrated the hydrophobic character of the zinc oxide and tin oxide layer (also referred to as Sn x Zn y O in the remainder of the description) during its use whereas this is initially hydrophilic. Although this can not be considered as a well-established fact, the inventors believe that the impurities deposited on the initially hydrophilic Sn x Zn y O layer give it, after a short time of use, a property that is hydrophobic on the contrary, with angles of contact of the order of 60-70 °.
- Such a property makes it possible to unexpectedly consider the use of such a layer, very advantageously, as a coating (or last layer of a coating) shower enclosure or more generally for any other use in which a glass, subjected to splashing water, must quickly evacuate it.
- the glazings described in these examples incorporate a glass substrate comprising a single layer of coating, called the "easy-to-clean" layer, at least on a surface part, part intended to be exposed to a humid environment, such as in a room de-bain, and more particularly intended to receive splashes of water. No other layer is deposited above or below the "easy-to-clean" layer.
- the substrate is made of soda-lime glass, of a thickness for example of 2 mm, and marketed under the reference PLANILUX® by the applicant company.
- glazings according to the invention are made and their performances are measured, for the different respective contents of zinc and tin.
- the coloring of the different glazings thus obtained is firstly measured according to the international representation and standard CIE L * a * b * . Specifically, the b * value is measured, a large positive value indicating a marked undesirable yellow color. The measurements are made with a UV-visible spectrometer in transmission and in reflection on the layer side. The different measured values are reported in Table 1 which follows.
- the windows are then immersed for 8 hours in vinegar (maintenance product commonly used for the shower enclosure) to measure their resistance to corrosion.
- vinegar maintenance product commonly used for the shower enclosure
- Table 1 The results reported in Table 1 above show that high levels of zinc in the oxide lead to low resistance to corrosion. Conversely, high levels of tin result in good chemical resistance of the layer but also in a marked yellow color of the glazing provided with its layer, in reflection.
- the quenchability of the layer and, in particular, its properties after the heat treatment of the glass substrate, in particular with respect to the other layers used today and described previously for the shower-room glazings, are also verified.
- a 10 nm thick layer of mixed zinc and tin oxide is deposited by magnetron sputtering techniques onto a 8mm thick Diamant® glass substrate from an alloy target.
- metallic SnZn whose atomic ratio is 45/55 (a mass ratio 60/40), in an argon and oxygen plasma, introduced into the chamber in a volume ratio of the order of 1.8.
- the glazing provided with the layer according to the invention is heated at 700 ° C. for 3 minutes followed by quenching.
- the glazing obtained according to the invention is also compared to a second reference glazing comprising a hydrophobic coating based on DLC, in this case a toughened glazing currently marketed under the name showerguard®.
- the value of light absorption is obtained with a UV-Visible spectrometer by measuring the transmission and reflection of the sample on the layer side.
- the contact angle with water ⁇ is measured with a drop of 2 ⁇ deposited by means of a syringe on the horizontal surface of the substrate and with the aid of a suitable camera.
- the sliding limit volume is defined as the limit value below which the drops no longer flow on the surface of a vertically held substrate, their weight no longer sufficient to drag them down. If the contact angle ⁇ provides information on the hydrophobic nature of the layer, the sliding limit volume is more representative of the desired performance of the glazing during its use, especially as a shower wall.
- the High Humidity (HH) test consists in placing the samples in a chamber heated to 50 ° C and in which there is a constant relative humidity of 95% for 75 days, then measuring the blur appeared, the blur being defined as the ratio between the diffuse transmission and the total transmission. This blur is the result of the roughening of the substrate under the action of corrosion.
- This accelerated aging test appears very representative of the actual conditions of use, over a long period of time, of the glazing in a hot and humid atmosphere such as a bathroom.
- the measurement of the coefficient of friction aims to assess the ease with which a squeegee can be used on the surface of the glazing to clean its surface.
- the coefficient of friction reported in Table 2 is measured by means of a device comprising a squeegee 25 cm in length, disposed on the surface of the glazing on the side covered by the coating. On the squeegee is arranged a load of one kilogram. The force required for the squeegee to be moved at a speed of 4 m / min is measured with a dynamometer in newtons.
- the measurements made by the applicant company show that the glazing according to the invention differs from bare glass in having a high resistance to corrosion, by an ability to make the drops of water flow, as indicated by its very low volume of slip, close to that of the reference organic hydrophobic layer.
- Such a property makes it possible to limit the amount of water to be wiped on the glazing, but also to effectively limit the quantity of drops of water remaining after each spraying on the surface of the wall and thus the appearance of traces of limestone.
- the measurements made by the applicant company on the reference product comprising a DLC layer show that this layer confers on the coated glazing a coloration due to a visible absorption.
- the DLC layer according to the prior art has a hydrolytic resistance (as measured by the HH test) lower than that of the coating according to the present invention. Also, the DLC layer according to the prior art has a lower ability to flow water drops and greater difficulty in removing these drops with a squeegee, as evidenced by the greater slip volume and the coefficient of higher friction.
- the layer according to the invention has properties quite similar to those of the hydrophobic comparative layer. It can also advantageously be deposited on a glass substrate to be quenched or quenched.
- the present invention thus finally makes it possible to obtain glazing whose properties in use are close to those of glazings comprising organic hydrophobic layers, with the additional advantages that the glass substrate can be quenched after deposition of said zinc oxide layer. and tin by conventional vacuum techniques, and that the properties, including corrosion resistance, will last several years.
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Surface Treatment Of Glass (AREA)
- Laminated Bodies (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201580000146.9A CN104955781A (zh) | 2014-01-31 | 2015-01-30 | 包括基于氧化锌锡的外层的易清洁玻璃板 |
BR112015016482A BR112015016482A2 (pt) | 2014-01-31 | 2015-01-30 | envidraçamento fácil de limpar compreendendo uma camada externa com base em óxido de estanho e zinco |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1450773A FR3017128A1 (fr) | 2014-01-31 | 2014-01-31 | Vitrage facile a nettoyer comprenant une couche externe a base d'oxyde d'etain et de zinc |
FR1450773 | 2014-01-31 | ||
FR1453964A FR3017129A1 (fr) | 2014-01-31 | 2014-04-30 | Vitrage facile a nettoyer comprenant une couche externe a base d'oxyde d'etain et de zinc |
FR1453964 | 2014-04-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2015114274A1 true WO2015114274A1 (fr) | 2015-08-06 |
Family
ID=50780665
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2015/050222 WO2015114274A1 (fr) | 2014-01-31 | 2015-01-30 | Vitrage facile a nettoyer comprenant une couche externe a base d'oxyde d'étain et de zinc |
Country Status (4)
Country | Link |
---|---|
CN (1) | CN104955781A (fr) |
BR (1) | BR112015016482A2 (fr) |
FR (2) | FR3017128A1 (fr) |
WO (1) | WO2015114274A1 (fr) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2000024686A1 (fr) | 1998-10-22 | 2000-05-04 | Saint-Gobain Vitrage | Empilement de couches pour substrats transparents |
WO2006122900A1 (fr) * | 2005-05-11 | 2006-11-23 | Agc Flat Glass Europe Sa | Empilage anti-solaire |
WO2013003186A1 (fr) | 2011-06-30 | 2013-01-03 | Guardian Industries Corp. | Procédé de fabrication d'un article revêtu traité thermiquement et gravé/usiné par faisceau d'ions, réalisé au moyen d'un revêtement du type dépôt cda et d'un film protecteur |
WO2013184607A2 (fr) | 2012-06-08 | 2013-12-12 | Guardian Industries Corp. | Procédé de fabrication d'un article revêtu, traité par la chaleur, à l'aide d'un revêtement à base de carbone et d'un film de protection |
WO2014086570A1 (fr) * | 2012-12-06 | 2014-06-12 | Saint-Gobain Glass France | Vitre dotée d'au moins une couche de protection contenant de l'oxyde d'étain et de zinc |
-
2014
- 2014-01-31 FR FR1450773A patent/FR3017128A1/fr not_active Withdrawn
- 2014-04-30 FR FR1453964A patent/FR3017129A1/fr not_active Withdrawn
-
2015
- 2015-01-30 BR BR112015016482A patent/BR112015016482A2/pt not_active IP Right Cessation
- 2015-01-30 CN CN201580000146.9A patent/CN104955781A/zh active Pending
- 2015-01-30 WO PCT/FR2015/050222 patent/WO2015114274A1/fr active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2000024686A1 (fr) | 1998-10-22 | 2000-05-04 | Saint-Gobain Vitrage | Empilement de couches pour substrats transparents |
WO2006122900A1 (fr) * | 2005-05-11 | 2006-11-23 | Agc Flat Glass Europe Sa | Empilage anti-solaire |
WO2013003186A1 (fr) | 2011-06-30 | 2013-01-03 | Guardian Industries Corp. | Procédé de fabrication d'un article revêtu traité thermiquement et gravé/usiné par faisceau d'ions, réalisé au moyen d'un revêtement du type dépôt cda et d'un film protecteur |
WO2013184607A2 (fr) | 2012-06-08 | 2013-12-12 | Guardian Industries Corp. | Procédé de fabrication d'un article revêtu, traité par la chaleur, à l'aide d'un revêtement à base de carbone et d'un film de protection |
WO2014086570A1 (fr) * | 2012-12-06 | 2014-06-12 | Saint-Gobain Glass France | Vitre dotée d'au moins une couche de protection contenant de l'oxyde d'étain et de zinc |
Non-Patent Citations (4)
Title |
---|
IK-JAE LEE ET AL: "Characterization of zinc-tin-oxide films deposited by radio frequency magnetron sputtering at various substrate temperatures", THIN SOLID FILMS, vol. 548, 29 August 2013 (2013-08-29), pages 385 - 388, XP055145469, ISSN: 0040-6090, DOI: 10.1016/j.tsf.2013.08.067 * |
JAYARAJ MADAMBI ET AL: "Optical and electrical properties of amorphous zinc tin oxide thin films examined for thin film transistor application", JOURNAL OF VACUUM SCIENCE AND TECHNOLOGY: PART B, AVS / AIP, MELVILLE, NEW YORK, NY, US, vol. 26, no. 2, 27 March 2008 (2008-03-27), pages 495 - 501, XP012114143, ISSN: 1071-1023, DOI: 10.1116/1.2839860 * |
MUKASHEV ET AL: "Study of structural, optical and electrical properties of ZnO and SnO2 thin films", SUPERLATTICES AND MICROSTRUCTURES, ACADEMIC PRESS, LONDON, GB, vol. 42, no. 1-6, 14 September 2007 (2007-09-14), pages 103 - 109, XP022243523, ISSN: 0749-6036, DOI: 10.1016/J.SPMI.2007.04.057 * |
PO-JUI KUO ET AL: "Investigation of zinc-tin-oxide thin-film transistors with varying SnO2 contents", ELECTRONIC MATERIALS LETTERS, vol. 10, no. 1, 10 January 2014 (2014-01-10), pages 89 - 94, XP055145465, ISSN: 1738-8090, DOI: 10.1007/s13391-013-3112-4 * |
Also Published As
Publication number | Publication date |
---|---|
CN104955781A (zh) | 2015-09-30 |
BR112015016482A2 (pt) | 2017-07-11 |
FR3017128A1 (fr) | 2015-08-07 |
FR3017129A1 (fr) | 2015-08-07 |
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