WO2020122069A1 - Plaque supérieure pour dispositif de cuisson - Google Patents

Plaque supérieure pour dispositif de cuisson Download PDF

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Publication number
WO2020122069A1
WO2020122069A1 PCT/JP2019/048293 JP2019048293W WO2020122069A1 WO 2020122069 A1 WO2020122069 A1 WO 2020122069A1 JP 2019048293 W JP2019048293 W JP 2019048293W WO 2020122069 A1 WO2020122069 A1 WO 2020122069A1
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WO
WIPO (PCT)
Prior art keywords
heat
top plate
resistant resin
resin layer
inorganic
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PCT/JP2019/048293
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English (en)
Japanese (ja)
Inventor
司 松原
武史 土谷
弘孫 小西
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日本電気硝子株式会社
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Publication date
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Publication of WO2020122069A1 publication Critical patent/WO2020122069A1/fr

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    • 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
    • C03C17/28—Surface treatment of glass, not in the form of fibres or filaments, by coating with organic material
    • C03C17/32—Surface treatment of glass, not in the form of fibres or filaments, by coating with organic material with synthetic or natural resins
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F24C15/10—Tops, e.g. hot plates; Rings
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/10—Induction heating apparatus, other than furnaces, for specific applications
    • H05B6/12—Cooking devices

Definitions

  • the present invention is an invention relating to a top plate for a cooker.
  • a glass plate made of crystallized glass or the like having a low coefficient of thermal expansion is used for the cooker top plate.
  • a colorless glass plate is used as the glass plate, generally, in order to conceal the internal structure of the cooking device, a decorative layer is provided as a decorative layer on the back surface located on the side opposite to the cooking surface on which the cooking utensil is placed.
  • a porous inorganic pigment layer made of an inorganic pigment and glass powder, and a heat resistant resin layer made of a silicone resin or the like are provided.
  • the thermal expansion coefficient of the glass powder used for the inorganic pigment layer is higher than the thermal expansion coefficient of the glass plate, so tensile stress occurs on the surface on which the inorganic pigment layer is formed. Therefore, the strength of the cooker top plate is reduced.
  • Patent Document 2 suppresses scratches by providing a heat resistant sliding layer made of graphite or the like.
  • an object of the present invention is to provide a top plate for a cooker in which the back surface is not easily scratched.
  • the top plate for a cooker according to the present invention which was devised to solve the above problems, has a cooking surface with which cooking utensil contacts, a glass plate having a back surface facing the cooking surface, and a back surface of the glass plate.
  • the flaky inorganic filler contains an alumina filler.
  • the flake-like inorganic filler has an average particle size of 5 to 40 ⁇ m.
  • the heat resistant resin contains a silicone resin.
  • the heat-resistant resin layer contains the flaky inorganic filler in an amount of 5 to 40% by weight.
  • the pencil hardness of the heat resistant resin layer is preferably 2H or more.
  • FIG. 1 is a schematic front cross-sectional view showing a cooker top plate according to an embodiment of the present invention.
  • a cooker top plate 1 (hereinafter, “cooker top plate 1” is simply referred to as “top plate 1”) includes a glass substrate 2.
  • the glass substrate 2 has a cooking surface 2a which is a main surface on one side and a back surface 2b which is a main surface on the other side.
  • the cooking surface 2a is a surface on which cooking utensils such as a pan and a frying pan are placed.
  • the back surface 2b is a surface facing the heating device on the inner side of the cooking device. Therefore, the cooking surface 2a and the back surface 2b have a front-back relationship.
  • the glass substrate 2 transmits at least a part of light having a wavelength of 450 nm to 700 nm.
  • the glass substrate 2 may be colored and transparent, but is preferably colorless and transparent from the viewpoint of further enhancing the aesthetic appearance of the top plate 1.
  • being colorless and transparent means having a light transmittance of 70% or more in the visible wavelength region at a wavelength of 450 nm to 700 nm.
  • the glass substrate 2 preferably has high heat resistance and a low coefficient of thermal expansion.
  • the softening temperature of the glass substrate 2 is preferably 700° C. or higher, and more preferably 750° C. or higher.
  • the average linear thermal expansion coefficient of the glass substrate 2 at 30° C. to 750° C. is preferably in the range of ⁇ 10 ⁇ 10 ⁇ 7 /° C. to +60 ⁇ 10 ⁇ 7 /° C., and ⁇ 10 ⁇ 10 ⁇ 7. /° C. to +50 ⁇ 10 ⁇ 7 /° C. is more preferable, and ⁇ 10 ⁇ 10 ⁇ 7 /° C. to +40 ⁇ 10 ⁇ 7 /° C. is even more preferable.
  • the glass substrate 2 is preferably made of glass having a high glass transition temperature and low expansion, or low expansion crystallized glass.
  • Specific examples of the low expansion crystallized glass include "N-0" manufactured by Nippon Electric Glass Co., Ltd. Note that borosilicate glass or the like may be used as the glass substrate 2.
  • a heat resistant resin layer 3 is provided on the back surface 2b of the glass substrate 2.
  • the heat resistant resin layer 3 is provided directly on the back surface 2b of the glass substrate 2. Further, in this embodiment, the surface of the heat resistant resin layer 3 is exposed to the outside air. Therefore, only the heat-resistant resin layer 3 is laminated on the back surface 2b of the glass substrate 2, and the other layers are not laminated. However, other layers may be laminated on the heat-resistant resin layer 3, but from the viewpoint of further improving the productivity and the viewpoint of reducing the film stress, the heat-resistant resin layer 3 as in the present embodiment. It is preferred that only one is laminated.
  • the heat-resistant resin layer 3 also contains a heat-resistant resin, an inorganic filler, an inorganic coloring pigment, and an extender pigment.
  • the inorganic filler is a flaky inorganic filler having a Mohs hardness of 3 or more.
  • the heat-resistant resin layer 3 containing at least the heat-resistant resin and the flake-shaped inorganic filler is directly provided on the back surface 2b of the glass substrate 2. Therefore, for example, when assembling the cooker, the back surface is unlikely to be scratched.
  • the reason why the scratches are hard to occur is that the flaky inorganic filler having a Mohs hardness of 3 or more hardens the surface of the heat resistant resin layer 3.
  • the extender pigment has been used to suppress scratches, but the flake-like inorganic filler is easily dispersed so as to cover the surface of the heat-resistant resin layer 3 and is extremely hard, so that the back surface is less likely to be scratched. Conceivable.
  • the flake-shaped inorganic filler includes a plate-like shape, a scale-like shape, or the like, and is a shape obtained by crushing a spherical or lump-like three-dimensional shape in one direction.
  • the average particle diameter of the flaky inorganic filler is preferably 5 to 40 ⁇ m from the viewpoint of dispersibility in the heat resistant resin layer 3.
  • the average particle diameter is the median diameter derived from the volume distribution measured by the laser diffraction scattering method.
  • the average particle size of the flaky inorganic filler is more preferably 10 ⁇ m or more, further preferably 20 ⁇ m or more. Further, the average particle diameter of the flake-like inorganic filler is more preferably 35 ⁇ m or less, further preferably 30 ⁇ m or less.
  • the particle size of the flake-like inorganic filler in the direction perpendicular to the thickness direction is preferably in the range of 5 to 50 ⁇ m from the viewpoint of dispersibility in the heat resistant resin layer 3.
  • the particle size in the direction perpendicular to the thickness direction is the surface equivalent surface area of 20 flake-like inorganic fillers in the photograph taken by a scanning electron microscope, and the circle-equivalent diameter of this surface area. Is a value calculated by obtaining
  • the Mohs hardness of the flaky inorganic filler is 3 or more.
  • the Mohs hardness is a Mohs hardness divided into 10 stages from 1 to 10.
  • the Mohs hardness of the flaky inorganic filler is preferably 5 or more, more preferably 8 or more.
  • the Mohs hardness is preferably 9 or less.
  • Examples of the flake-like inorganic filler having a Mohs hardness of 3 or more include alumina, magnesia, glass, orthoclase, quartz, diamond and the like.
  • the Mohs hardness of the flaky inorganic filler is a measurement value of the Mohs hardness of a plate-like body (50 mm long ⁇ 50 mm wide ⁇ 1 mm thick) having the same components as the inorganic filler.
  • the extender pigment contained in the heat-resistant resin layer 3 is an inorganic pigment powder different from the above flaky inorganic filler having a Mohs hardness of 5 or more.
  • the extender pigment is not particularly limited, but for example, talc, mica and the like can be used. These extender pigments may be used alone or in combination of two or more.
  • the extender pigment has a lower effect of suppressing scratches as compared with the flake-like inorganic filler, but can further enhance the heat resistance and impact resistance of the top plate 1.
  • the average particle size of the extender pigment is preferably 5 to 50 ⁇ m from the viewpoint of dispersibility in the heat resistant resin layer 3.
  • the average particle diameter is the median diameter derived from the volume distribution measured by the laser diffraction scattering method.
  • the average particle size of the extender pigment is more preferably 10 ⁇ m or more, further preferably 15 ⁇ m or more. Further, the average particle size of the extender pigment is more preferably 45 ⁇ m or less, further preferably 40 ⁇ m or less.
  • the heat resistant resin layer 3 preferably contains an inorganic coloring pigment for coloring the top plate 1.
  • the inorganic coloring pigment contained in the heat resistant resin layer 3 is not particularly limited as long as it is a colored inorganic substance.
  • the inorganic coloring pigment include white pigment powder such as TiO 2 powder, ZrO 2 powder or ZrSiO 4 powder, blue inorganic pigment powder containing Co, green inorganic pigment powder containing Co, and Ti—Sb—Cr system.
  • a Ti—Ni-based yellow inorganic pigment powder, a Co—Si-based red inorganic pigment powder, a brown inorganic pigment powder containing Fe, or a black inorganic pigment powder containing Cu can be used.
  • the blue inorganic pigment powder containing Co include Co—Al based or Co—Al—Ti based inorganic pigment powders.
  • Specific examples of the Co—Al-based inorganic pigment powder include CoAl 2 O 4 powder and the like.
  • Specific examples of the Co—Al—Ti-based inorganic pigment powder include CoAl 2 O 4 —TiO 2 —Li 2 O powder.
  • green inorganic pigment powder containing Co examples include Co—Al—Cr-based or Co—Ni—Ti—Zn-based inorganic pigment powders.
  • Specific examples of the Co—Al—Cr-based inorganic pigment powder include Co(Al,Cr) 2 O 4 powder and the like.
  • Specific examples of the Co—Ni—Ti—Zn-based inorganic pigment powder include (Co, Ni, Zn) 2 TiO 4 powder.
  • brown inorganic pigment powder containing Fe examples include Fe—Zn based inorganic pigment powder.
  • Fe—Zn-based inorganic pigment powder examples include (Zn,Fe)Fe 2 O 4 powder.
  • the black inorganic pigment powder containing Cu include Cu—Cr-based inorganic pigment powder and Cu—Fe-based inorganic pigment powder.
  • Specific examples of the Cu—Cr-based inorganic pigment powder include Cu(Cr,Mn) 2 O 4 powder and Cu—Cr—Mn powder.
  • specific examples of the Cu—Fe-based inorganic pigment powder include Cu—Fe—Mn powder.
  • the flaky inorganic filler and the inorganic coloring pigment may be separately dispersed in the heat-resistant resin layer 3, but in view of designability, a part of the inorganic coloring pigment is a surface of the flaky inorganic filler. May be attached to.
  • the inorganic coloring pigment can be attached to the surface of the flake-like inorganic filler by the high-speed air current impact method. By using such a flake-like inorganic filler, the top plate 1 having gloss like a jewel can be obtained.
  • the average particle diameter of the inorganic color pigment is preferably 0.1 to 20 ⁇ m from the viewpoint of dispersibility in the heat resistant resin layer 3.
  • the average particle diameter is the median diameter derived from the volume distribution measured by the laser diffraction scattering method.
  • the average particle diameter of the inorganic color pigment is more preferably 0.5 ⁇ m or more, still more preferably 1 ⁇ m or more. Further, the average particle diameter of the inorganic color pigment is more preferably 15 ⁇ m or less, further preferably 10 ⁇ m or less.
  • the shape of the inorganic color pigment is not particularly limited, but a spherical shape is preferable from the viewpoint of impact resistance and dispersibility.
  • the ratio of the average particle diameters of the flake-like inorganic filler and the inorganic coloring pigment is 1 to 100, and the flake-like inorganic filler and the inorganic coloring pigment are uniform. It is preferable from the viewpoint of dispersion into The (flake-like inorganic filler/inorganic color pigment) is more preferably 1.5 or more, further preferably 2 or more. Further, (flake-like inorganic filler/inorganic color pigment) is more preferably 70 or less, further preferably 30 or less.
  • the content of the flake-like inorganic filler in the heat-resistant resin layer 3 is preferably in the range of 5 to 40% by mass from the viewpoint of suppressing scratches and designing.
  • the content of the flaky inorganic filler is more preferably 10% by mass or more, further preferably 15% by mass or more.
  • the content of the flake-like inorganic filler is more preferably 35% by mass or less, further preferably 25% by mass or less.
  • the content of the extender pigment in the heat-resistant resin layer 3 is preferably in the range of 5 to 40% by mass from the viewpoint of dispersibility.
  • the content of the extender pigment is more preferably 10% by mass or more, further preferably 15% by mass or more. Further, the content of the extender pigment is more preferably 35% by mass or less, and further preferably 30% by mass or less.
  • the content of the inorganic coloring pigment in the heat resistant resin layer 3 is preferably in the range of 10 to 55 mass% from the viewpoint of designability.
  • the content of the inorganic coloring pigment is more preferably 15% by mass or more, further preferably 20% by mass or more.
  • the content of the inorganic coloring pigment is more preferably 40% by mass or less, further preferably 30% by mass or less.
  • the heat-resistant resin contained in the heat-resistant resin layer 3 preferably has high heat resistance.
  • heat-resistant resin include silicone resin.
  • the silicone resin contained in the heat-resistant resin layer 3 is preferably, for example, a silicone resin in which a functional group directly bonded to a silicon atom is at least one of a methyl group and a phenyl group. In this case, discoloration of the heat-resistant resin layer 3 when the top plate 1 becomes hot can be suppressed more effectively.
  • the content of the silicone resin in the heat resistant resin layer 3 is preferably in the range of 20 to 50 mass% from the viewpoint of heat resistance and impact resistance.
  • the content of the silicone resin is more preferably 25% by mass or more, further preferably 30% by mass or more. Further, the content of the silicone resin is more preferably 45% by mass or less, further preferably 40% by mass or less.
  • the thickness of the heat resistant resin layer 3 can be appropriately set according to the light transmittance of the heat resistant resin layer 3 and the like.
  • the heat-resistant resin layer 3 can have a thickness of, for example, 5 to 20 ⁇ m.
  • the thickness of the heat resistant resin layer 3 is more preferably in the range of 10 to 15 ⁇ m.
  • the heat-resistant resin layer 3 preferably has a pencil hardness of 2H or more.
  • the pencil hardness is the hardness measured according to the pencil hardness test of JIS K5600-5-4 (1999). If the pencil hardness is 2H or more, the top plate 1 that is unlikely to have scratches on the back surface can be obtained.
  • the top plate 1 can be manufactured by the following method, for example. First, a paste containing a heat-resistant resin, flaky inorganic filler powder, inorganic coloring pigment powder, and extender pigment powder is prepared. Next, the prepared paste is directly applied on the back surface 2b of the glass substrate 2 and dried. Thereby, the top plate 1 having the heat resistant resin layer 3 can be manufactured. Depending on the composition of the heat resistant resin layer 3, the top plate 1 may be obtained by baking after drying.
  • the paste application speed and viscosity can be appropriately set according to the contents of the flake-like inorganic filler powder, the inorganic color pigment powder, and the extender pigment powder contained in the heat resistant resin layer 3.
  • the content of the flake-like inorganic filler powder, the inorganic coloring pigment powder and the extender pigment powder in the heat resistant resin layer 3 is large, it is preferable to lower the viscosity of the paste and slow the coating speed of the silicone resin.
  • Examples of the method for reducing the viscosity of the paste include changing the type of heat-resistant resin and adding a solvent to the paste.
  • the drying temperature of the applied paste can be, for example, about 50°C to 100°C.
  • the drying time can be, for example, about 5 minutes to 1 hour.
  • the paste containing the heat-resistant resin, the flaky inorganic filler powder, the coloring pigment powder, and the extender pigment powder is directly applied onto the back surface 2b of the glass substrate 2 and dried. Since the top plate 1 is manufactured by doing so, there is no step of baking the glass frit on the back surface 2b of the glass substrate 2. Therefore, tensile stress is unlikely to occur on the back side of the glass substrate 2, and the top plate 1 is less likely to be damaged when a load or impact is applied to the cooking surface 2a of the glass substrate 2. Further, since it is not necessary to burn the glass frit in a raw state, the designability is unlikely to deteriorate. Therefore, the top plate 1 obtained by the manufacturing method of the present embodiment can have improved heat resistance and impact resistance without impairing the design.
  • the film composition ratio after firing is 54% by mass of silicone resin (resin solid content), 15% by mass of Cu—Fe—Mn-based black pigment (average particle size: 1 ⁇ m), and extant pigment of talc (average particle size). : 20 ⁇ m) and 15 mass% of flakes of alumina filler powder (Mohs hardness: 9, average particle diameter: 25 ⁇ m) were mixed so as to be 16 mass %. Next, 17.8 mass% of an organic solvent was added to 100 mass% of these mixtures to prepare a paste. Next, this paste was applied to a transparent crystallized glass plate (Nippon Electric Glass Co., Ltd., trade name “N-0”, average linear thermal expansion coefficient at 30° C.
  • Example 2 The film composition ratio after firing is 53% by mass of silicone resin (resin solid content), 11% by mass of Cu—Fe—Mn-based black pigment (average particle size: 1 ⁇ m), and extender pigment of talc (average particle size: 20 ⁇ m). ) 11% by mass and flake-shaped alumina filler powder (Mohs hardness: 9, average particle size: 25 ⁇ m) were mixed in an amount of 25% by mass, except that the mixture was mixed in the same manner as in Example 1 to prepare a top plate for cookers (top plate). ) was produced.
  • Example 3 The film composition ratio after firing is 67% by mass of silicone resin (resin solid content), 12% by mass of Cu—Fe—Mn-based black pigment (average particle size: 1 ⁇ m), and extender pigment of talc (average particle size: 20 ⁇ m). ) 12% by mass and flaky alumina filler powder (Mohs hardness: 9, average particle size: 25 ⁇ m) were mixed so as to be 9% by mass, and the same procedure as in Example 1 was repeated. ) was produced.
  • the film composition ratio after firing is 54% by mass of silicone resin (resin solid content), 15% by mass of Cu—Fe—Mn-based black pigment (average particle size: 1 ⁇ m), and extant pigment of talc (average particle size). : 20 ⁇ m) 31% by mass were mixed.
  • 17.8 mass% of an organic solvent was added to 100 mass% of these mixtures to prepare a paste.
  • this paste was applied to a transparent crystallized glass plate (Nippon Electric Glass Co., Ltd., trade name “N-0”, average linear thermal expansion coefficient at 30° C. to 750° C.: 0.5 ⁇ 10 ⁇ 7 /° C., thickness 4 mm. ) Was screen-printed so that the thickness was 10 ⁇ m.
  • the film composition ratio after firing is 54% by mass of silicone resin (resin solid content), 15% by mass of Cu—Fe—Mn-based black pigment (average particle size: 1 ⁇ m), and extant pigment of talc (average particle size). : 20 ⁇ m) and flake-shaped mica filler powder (Mohs hardness: 2.8, average particle size: 25 ⁇ m) 16% by mass.
  • 17.8 mass% of an organic solvent was added to 100 mass% of these mixtures to prepare a paste.
  • this paste was applied to a transparent crystallized glass plate (Nippon Electric Glass Co., Ltd., trade name “N-0”, average linear thermal expansion coefficient at 30° C.

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  • Combustion & Propulsion (AREA)
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Abstract

La présente invention aborde le problème de la fourniture d'une plaque supérieure (1) pour un dispositif de cuisson, la plaque supérieure (1) présentant une surface arrière (2b) qui résiste aux rayures.　La plaque supérieure (1) pour un dispositif de cuisson selon la présente invention, qui a été créée pour résoudre ce problème, comprend : une plaque de verre (2) présentant une surface de cuisson (2a) en contact avec les ustensiles de cuisson, et une surface arrière (2b) faisant face à la surface de cuisson (2a) ; et une couche de résine résistant à la chaleur (3) qui est en contact avec la surface arrière de la plaque de verre (2), la couche de résine résistant à la chaleur (3) comprenant une résine résistant à la chaleur, présentant une résistance à la chaleur, et une charge inorganique se présentant sous la forme de paillettes présentant une dureté Mohs égale ou supérieure à 3.
PCT/JP2019/048293 2018-12-12 2019-12-10 Plaque supérieure pour dispositif de cuisson WO2020122069A1 (fr)

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JP2018-232785 2018-12-12
JP2018232785 2018-12-12

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WO2020122069A1 true WO2020122069A1 (fr) 2020-06-18

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022118562A1 (de) 2022-07-25 2024-01-25 Schott Ag Glas- oder Glaskeramikplatte umfassend wenigstens eine auf einer Seite angeordnete Beschichtung sowie Verfahren zu deren Herstellung

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4354023A1 (fr) 2021-06-07 2024-04-17 Nippon Electric Glass Co., Ltd. Plaque supérieure de cuisinière

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0491282A (ja) * 1990-07-27 1992-03-24 Nitto Boseki Co Ltd 床材
JP2011177962A (ja) * 2010-02-26 2011-09-15 Nisshin Steel Co Ltd 塗装ステンレス鋼板および水晶振動子製造用ジグ
JP2015523945A (ja) * 2012-04-20 2015-08-20 ショット アクチエンゲゼルシャフトＳｃｈｏｔｔ ＡＧ 装飾被覆を備えたガラス基材又はガラスセラミック基材並びにその製造法
WO2018047428A1 (fr) * 2016-09-06 2018-03-15 日本電気硝子株式会社 Plaque supérieure de dispositif de cuisson et son procédé de fabrication

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0491282A (ja) * 1990-07-27 1992-03-24 Nitto Boseki Co Ltd 床材
JP2011177962A (ja) * 2010-02-26 2011-09-15 Nisshin Steel Co Ltd 塗装ステンレス鋼板および水晶振動子製造用ジグ
JP2015523945A (ja) * 2012-04-20 2015-08-20 ショット アクチエンゲゼルシャフトＳｃｈｏｔｔ ＡＧ 装飾被覆を備えたガラス基材又はガラスセラミック基材並びにその製造法
WO2018047428A1 (fr) * 2016-09-06 2018-03-15 日本電気硝子株式会社 Plaque supérieure de dispositif de cuisson et son procédé de fabrication

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022118562A1 (de) 2022-07-25 2024-01-25 Schott Ag Glas- oder Glaskeramikplatte umfassend wenigstens eine auf einer Seite angeordnete Beschichtung sowie Verfahren zu deren Herstellung
EP4311811A1 (fr) 2022-07-25 2024-01-31 Schott Ag Plaque de verre ou de vitrocéramique comprenant au moins un revêtement disposé sur une face et son procédé de fabrication

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