WO2020046096A1 - Verre gris neutre à faible transmission de lumière - Google Patents

Verre gris neutre à faible transmission de lumière Download PDF

Info

Publication number
WO2020046096A1
WO2020046096A1 PCT/MX2018/000076 MX2018000076W WO2020046096A1 WO 2020046096 A1 WO2020046096 A1 WO 2020046096A1 MX 2018000076 W MX2018000076 W MX 2018000076W WO 2020046096 A1 WO2020046096 A1 WO 2020046096A1
Authority
WO
WIPO (PCT)
Prior art keywords
glass
transmission
oxide
thickness
glass composition
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/MX2018/000076
Other languages
English (en)
Spanish (es)
Inventor
José Guadalupe CID AGUILAR
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vidrio Plano de Mexico SA de CV
Original Assignee
Vidrio Plano de Mexico SA de CV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Vidrio Plano de Mexico SA de CV filed Critical Vidrio Plano de Mexico SA de CV
Priority to PCT/MX2018/000076 priority Critical patent/WO2020046096A1/fr
Publication of WO2020046096A1 publication Critical patent/WO2020046096A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • C03C4/00—Compositions for glass with special properties
    • C03C4/02—Compositions for glass with special properties for coloured glass
    • 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
    • C03C3/00—Glass compositions
    • C03C3/04—Glass compositions containing silica
    • C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
    • C03C3/083—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound
    • 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
    • C03C3/00—Glass compositions
    • C03C3/04—Glass compositions containing silica
    • C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
    • C03C3/083—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound
    • C03C3/085—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound containing an oxide of a divalent metal
    • 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
    • C03C3/00—Glass compositions
    • C03C3/04—Glass compositions containing silica
    • C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
    • C03C3/083—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound
    • C03C3/085—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound containing an oxide of a divalent metal
    • C03C3/087—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound containing an oxide of a divalent metal containing calcium oxide, e.g. common sheet or container glass

Definitions

  • the present invention relates to a glass with low transmittance, neutral gray color and more specifically to a gray glass composition to produce the glass for use in the automotive industry, for the manufacture of panoramic roofs, medallions and rear doors, both laminated as temperate.
  • Colored glass is a material which, during the melting process, metal oxides are incorporated.
  • metal oxides are incorporated.
  • iron-cobalt oxides in combination with selenium, gives the glass shades from greenish gray - neutral gray to yellowish gray depending on their relationship.
  • Solar control is the ability to modify the amount of solar radiation transmitted or reflected, in the near ultraviolet spectral intervals (UV; 300-
  • the glasses described in almost all patents that refer to a type of neutral gray glass are based on three main dyes: iron oxide, cobalt oxide
  • V selenium whose main function is to grant solar control properties to glass.
  • the glasses presented are known to use nickel oxide in concentrations of 400 to 700 ppm or 1500 to 1900 ppm, iron oxide 0.7 to 0.95% with a redox value of 0.40 or less, in addition to cobalt oxide of 200 to 300 ppm, to obtain an adjustment in the gray color and obtain the following physical properties: light transmission under Illuminant A (TLA) of 50% or less and an average in the power transmission (TE) less than 45%, for a glass of 3.85mm thickness.
  • TLA Illuminant A
  • TE power transmission
  • nickel oxide used as a colorant in some of the previous patents, has the disadvantage that inclusions of nickel sulphide (defect that is not readily detectable) can be formed that can cause glass sheets to break due to to the difference in the coefficient of thermal expansion of this material with the rest of the vitreous matrix.
  • the glasses described in US Patent No. 8,551,899 of Kim, et al. Have a dark gray-green neutral color, given by the dyes used such as FeaOg in 1.4 to 2.5%, CoO of 0.02 to 0.04%, Se from 0.0001 to 0.004%, MnO from 0.005 to 0.5 and CeO from 0.05 to 1% with a light transmission A less than 15%.
  • These glasses are used as privacy glasses or panoramic roofs in cars, as well as used in construction.
  • a main objective of the present invention is a gray glass of low light transmission A (Tu) not greater than 15%, a direct solar energy transmission (Cough) not greater than 14%, a near infrared radiation transmission (Tm ) not exceeding 14%, a transmission of ultraviolet radiation (Tuv) not exceeding 8%, a transmission of total solar energy (TTS) not exceeding 38%, a purity not exceeding 50% and a dominant wavelength of 480-590 nm when it has a nominal thickness of 3.85 mm, manufactured by the float process.
  • TTS total solar energy
  • Another objective of the present invention is the use of copper oxide as a partial replacement of cobalt oxide (C03O4).
  • C03O4 cobalt oxide
  • T1O2 is incorporated as an additional element to iron oxide to provide a supplementary reduction in the transmission of ultraviolet radiation.
  • a further objective of the present invention is also to obtain a gray glass composition of low light transmission, including additional elements such as carbon or sodium nitrate to modify the oxide-reduction state of iron oxide.
  • the glass of this invention avoids the use of coloring compounds such as nickel, chromium, manganese or rare earth oxides, mainly erbium oxide (Er 2 Ü3).
  • the typical composition of a silica-sodium-calcium glass formed by the float glass process for the automotive industry is characterized by the following formulation based on the percentage by weight with respect to the total weight of the glass:
  • the main objective of adding sodium nitrate (NaNOa) and carbon to the composition is to modify the oxidation state of iron to reach the optimum level of direct heat transmission (Cough).
  • Tables 1 and 2 show the experimental results of the composition of the present invention with the combination of iron oxide (FeaOa), cobalt oxide (C03O4), selenium (Se), copper oxide and titanium oxide (T1O2).
  • FeaOa iron oxide
  • C03O4 cobalt oxide
  • Se selenium
  • Ti copper oxide
  • TiO2 titanium oxide
  • Tables 1 and 2 show the experimental results of the composition of the present invention with the combination of iron oxide (FeaOa), cobalt oxide (C03O4), selenium (Se), copper oxide and titanium oxide (T1O2).
  • they contain 0.66% sodium nitrate ⁇ NaNOa) as an oxidizing agent in the mixture, without the addition of carbon.
  • Table 6 shows the experimental results of the composition of the present invention with the combination of iron oxide (FezOg), cobalt oxide (C03O4), selenium (Se), copper oxide and oxide Titanium (UNCLE2). In addition, they contain 0.16% sodium nitrate (NaNOg) and 0.030% carbon.
  • the main objective of adding sodium nitrate (NaNOa) and carbon to the composition is to modify the oxidation state of iron to reach the optimum level of direct heat transmission (Cough). Color and privacy are adjusted by optimizing the percentages of dyes written in this invention.
  • the physical properties of the glasses obtained were evaluated in accordance with internationally accepted standards.
  • the specifications for the determination of ales color, such as the dominant wavelength and the excitation purity, have been derived from the Tristimulus altitudes (X, Y, Z) that have been adopted by the International Commission of Illumination CIE), as a result Direct experiments involving many observers. These specifications can be determined by calculating the trichromatic coefficients, and, z of the Tristimulus values corresponding to the colors red, green and blue spectively.
  • the trichromatic values are plotted in the aromaticity diagram and Accompanied with the coordinates of the illuminant D65, considered as a lighting standard.
  • the comparison provides the information to determine the purity of color excitation and its dominant wavelength.
  • the dominant wavelength defines the color wavelength and its value is in the visible range, from 380 to 780 nm, while for excitation purity, the lower its value, the closer it tends to be a neutral color
  • the illuminant "A" (T LA ) was used, in the wavelength range of 400 to 800 nanometers, integrating values in 10 nm intervals.
  • the color transmission (L *, a * and b *) was calculated according to ASTM E308 (CI D65 observer at 10 ”).
  • the range of solar spectrum radiation is contemplated, having a range of 800 to 2500 nm, with 50 nm intervals, using the values of ISO / DIS 13837.
  • the total solar energy transmission (TTS) was evaluated in the range of 300 to 2500 nm considering wind speed of 4 m / s (parked), in accordance with ISO / DIS 13837.
  • the neutral gray glass of this invention can be manufactured by the float glass process from a thickness of 1.4 mm to 6 mm, however, it is not limited only to this range of Thicknesses and can be processed as tempered, in double-sided windows, laminated friction systems or as a substrate covered by one or more layers.
  • This glass has the following properties: light transmission with ATLA illuminant) not greater than 15%, direct solar energy transmission (Cough) not greater than 14%, near infrared adiation transmission (TIR) not greater than 14%, transmission of ultraviolet radiation (Tuv) not greater than 8%, total solar energy transmission (Trs) not greater than 38% and purity not greater than 50%.

Landscapes

  • 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)
  • Glass Compositions (AREA)

Abstract

La présente invention concerne un verre gris obscur présentant une composition silice-sodium-calcium et un colorant qui comprend en pourcentages en poids : de 1,20 à 3,0% de Fe2O3, de 15 à 40% d'oxyde de fer (% de réduction), de 0,25 à 1,0% de FeO (exprimé comme Fe2O3), de 0,020 à 0,040% de Co3O4, de 0,0015 à 0,010% de Se, de 0,00050 à 0,050% de CuO et de 0,01 à 1% de TiO2, en outre on évite l'utilisation de composés colorants tels que les oxydes de nickel, de chrome, de manganèse ou de terres rares. Ce verre présente une faible transmission de lumière illuminant A (TLA) inférieure à 20%, de préférence inférieure à 25%, une transmission d'énergie solaire directe (TDS) inférieure à 14%, une transmission de rayonnement infrarouge proche (TIR) inférieure à 14%, une transmission de rayonnement ultraviolet (TUV) inférieure à 8%, une transmission d'énergie totale solaire (TTS) inférieure à 38%, une pureté inférieure à 50% et une longueur d'onde dominante de 480-590 nm lorsqu'il présente une épaisseur comprise entre 2,85 et 3,85 mm.
PCT/MX2018/000076 2018-08-27 2018-08-27 Verre gris neutre à faible transmission de lumière Ceased WO2020046096A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/MX2018/000076 WO2020046096A1 (fr) 2018-08-27 2018-08-27 Verre gris neutre à faible transmission de lumière

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/MX2018/000076 WO2020046096A1 (fr) 2018-08-27 2018-08-27 Verre gris neutre à faible transmission de lumière

Publications (1)

Publication Number Publication Date
WO2020046096A1 true WO2020046096A1 (fr) 2020-03-05

Family

ID=69643640

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/MX2018/000076 Ceased WO2020046096A1 (fr) 2018-08-27 2018-08-27 Verre gris neutre à faible transmission de lumière

Country Status (1)

Country Link
WO (1) WO2020046096A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022265484A1 (fr) * 2021-06-18 2022-12-22 Vidrio Plano De Mexico, S.A. De C.V. Verre gris à faible transmission de lumière
EP4497733A1 (fr) * 2023-07-06 2025-01-29 Vitro Flat Glass LLC Verre gris à faible transmission de lumière

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0849233A1 (fr) * 1996-12-19 1998-06-24 Nippon Sheet Glass Co., Ltd. Verre à faible transmission absorbant les radiations ultraviolettes et infrarouges
EP0947476A1 (fr) * 1998-03-25 1999-10-06 Nippon Sheet Glass Co. Ltd. Verre à faible transmission absorbant les rayonnements ultraviolets/infrarouges
EP1125899A1 (fr) * 2000-01-24 2001-08-22 Nippon Sheet Glass Co. Ltd. Verre à faible transmission absorbant les rayonnements ultraviolets/infrarouges
US20100144509A1 (en) * 2008-12-08 2010-06-10 Jose Guadalupe Cid-Aguilar Neutral gray glass composition
WO2013039371A1 (fr) * 2011-09-14 2013-03-21 Vidrio Plano De México, S.A. De C.V. Composition de verre gris neutre

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0849233A1 (fr) * 1996-12-19 1998-06-24 Nippon Sheet Glass Co., Ltd. Verre à faible transmission absorbant les radiations ultraviolettes et infrarouges
EP0947476A1 (fr) * 1998-03-25 1999-10-06 Nippon Sheet Glass Co. Ltd. Verre à faible transmission absorbant les rayonnements ultraviolets/infrarouges
EP1125899A1 (fr) * 2000-01-24 2001-08-22 Nippon Sheet Glass Co. Ltd. Verre à faible transmission absorbant les rayonnements ultraviolets/infrarouges
US20100144509A1 (en) * 2008-12-08 2010-06-10 Jose Guadalupe Cid-Aguilar Neutral gray glass composition
WO2013039371A1 (fr) * 2011-09-14 2013-03-21 Vidrio Plano De México, S.A. De C.V. Composition de verre gris neutre

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022265484A1 (fr) * 2021-06-18 2022-12-22 Vidrio Plano De Mexico, S.A. De C.V. Verre gris à faible transmission de lumière
CN117715877A (zh) * 2021-06-18 2024-03-15 墨西哥平玻璃可变资本股份有限公司 具有低透光率的灰色玻璃
JP2024521976A (ja) * 2021-06-18 2024-06-04 ウィドリオ プラノ デ メキシコ、エセ．ア． デ セ．ウベ． 低光透過率のグレーガラス
EP4497733A1 (fr) * 2023-07-06 2025-01-29 Vitro Flat Glass LLC Verre gris à faible transmission de lumière

Similar Documents

Publication Publication Date Title
ES2749394T3 (es) Composición de vidrio incoloro
JPH1171131A (ja) 濃い緑色のソーダライムガラス
ES2338130T3 (es) Composicion de vidrio silico-sodo-calcico gris oscuro destinado a ala fabricacion de acristalamientos.
EP3360853B9 (fr) Composition de verre vert solaire absorbant les uv
WO2010068083A1 (fr) Composition de verre gris neutre
MX2012013935A (es) Composicion de vidrio de control solar verde obscuro.
ES2394001T3 (es) Vidrio de baja transmisión luminosa
WO2020046096A1 (fr) Verre gris neutre à faible transmission de lumière
WO2022265484A1 (fr) Verre gris à faible transmission de lumière
ES2311474T3 (es) Vidrio sodocalcico coloreado.
WO2014098555A1 (fr) Composition de verre bleu eau
ES2242751T3 (es) Vidrio coloreado de sosa y cal.
WO2013039371A1 (fr) Composition de verre gris neutre
WO2020117038A1 (fr) Composition pour verre vert mince de contrôle solaire
BR102024013878A2 (pt) Vidro cinza com baixa transmissão de luz
US20250011222A1 (en) Gray Glass Having Low Light Transmission
BR112021010840B1 (pt) Composição de vidro verde fino de controle solar, folha de vidro, vidro laminado híbrido simétrico ou híbrido assimétrico
BR112018007029B1 (pt) Composição de vidro de controle solar verde absorvente de uv
MXPA98002173A (en) Low transmittance glass, neu
BRPI0507151B1 (pt) Object of a glass or of occupation formed by molding, pressure or insufflation and process of manufacture of the same

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18931318

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 18931318

Country of ref document: EP

Kind code of ref document: A1