WO2024143156A1 - Verre, plaque de verre pour renforcement, et plaque de verre renforcé - Google Patents

Verre, plaque de verre pour renforcement, et plaque de verre renforcé Download PDF

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Publication number
WO2024143156A1
WO2024143156A1 PCT/JP2023/045953 JP2023045953W WO2024143156A1 WO 2024143156 A1 WO2024143156 A1 WO 2024143156A1 JP 2023045953 W JP2023045953 W JP 2023045953W WO 2024143156 A1 WO2024143156 A1 WO 2024143156A1
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WO
WIPO (PCT)
Prior art keywords
glass
less
content
cao
molar ratio
Prior art date
Application number
PCT/JP2023/045953
Other languages
English (en)
Japanese (ja)
Inventor
智 新井
Original Assignee
日本電気硝子株式会社
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 日本電気硝子株式会社 filed Critical 日本電気硝子株式会社
Publication of WO2024143156A1 publication Critical patent/WO2024143156A1/fr

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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
    • C03C21/00—Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface
    • 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
    • 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
    • C03C3/089—Glass compositions containing silica with 40% to 90% silica, by weight containing boron
    • C03C3/091—Glass compositions containing silica with 40% to 90% silica, by weight containing boron containing aluminium

Definitions

  • the present invention relates to glass, glass sheets for reinforcement, and reinforced glass sheets that have excellent chemical durability and formability.
  • the present invention relates to reinforced glass sheets that are suitable for flexible cover members such as foldable displays.
  • alkali aluminosilicate glass has been used for a variety of purposes due to its excellent properties.
  • JP 2006-83045 A International Publication No. 2015/031188 International Publication No. 2013/063275
  • the molar ratio ( Li2O + Na2O + K2O )/ Al2O3 is preferably 2 or more. This can improve formability.
  • “( Li2O + Na2O + K2O )/ Al2O3 " refers to the value obtained by dividing the total content of Li2O , Na2O , and K2O by the content of Al2O3 .
  • the glass of the present invention is preferably the glass described in any one of (1) to (11) above, which is subjected to an ion exchange treatment.
  • the tempered glass sheet of the present invention is preferably the tempered glass described in (13) above, and has a thickness of 0.2 mm or less.
  • the glass of the present invention contains, in mole percent, 60-85% SiO 2 , 1-20% Al 2 O 3 , 0-5% B 2 O 3 , 1-20% Li 2 O + Na 2 O + K 2 O , and 0-5% MgO + CaO + SrO + BaO.
  • % means "mol %” unless otherwise specified.
  • the content of SiO 2 is preferably 60% or more, 65% or more, 66% or more, 70% or more, 72% or more, 73% or more, 74% or more, particularly 75% or more, and preferably 85% or less, 84% or less, 83% or less, 82.5% or less, 82% or less, 81.5% or less, particularly 81% or less.
  • the content of Al2O3 is preferably 1% or more, 2% or more, 2.5% or more, 3% or more, 3.5% or more, 4% or more, 4.5% or more, 4.6% or more, 4.7% or more, 4.8% or more, 4.9% or more, particularly 5% or more, and is preferably 20% or less, 15% or less, 13% or less, 12% or less, 11% or less, 10% or less, 9.5% or less, 9% or less, 8.5% or less, 8% or less, 7.5% or less, particularly 7% or less.
  • Li 2 O has the effect of lowering the viscosity of glass and improving melting and moldability.
  • Li 2 O has the highest effect of lowering the viscosity of glass, followed by Na 2 O and K 2 O in that order.
  • it is a component capable of forming a compressive stress layer on the glass surface by ion exchange with Na ions or K ions, and is a component particularly effective for obtaining a deep stress depth.
  • the content of Li 2 O is too high, the chemical durability is likely to decrease, and it is a component that dissolves during ion exchange treatment and deteriorates the ion exchange solution.
  • the suitable content of Li 2 O varies depending on the characteristics of the glass that are important.
  • the content of Li 2 O is preferably 0 to 10%, 0 to 9%, 0 to 8%, 0 to 7%, 0 to 6%, 0 to 5%, 0 to 4%, and particularly 0 to 3%.
  • the content of Li 2 O is preferably 0.1 to 15%, 1 to 14.9%, 2 to 14.8%, 3 to 14.7%, 4 to 14.6%, 5 to 14.5%, 6 to 14.4%, 6.5 to 14.3%, 7 to 14.2%, 7.5 to 14.1%, and particularly 8 to 14%.
  • the content of Li 2 O is preferably 1 to 14%, 1.5 to 13%, 2 to 12%, 2.5 to 11%, 2.6 to 10%, 2.7 to 9.5%, 2.8 to 9%, 2.9 to 8.5%, and particularly 3 to 8%.
  • the content of Li 2 O is 10% or less, devitrification is less likely to occur.
  • the content of Na 2 O is preferably 1 to 14%, 1.5 to 13%, 2 to 12%, 2.5 to 11%, 2.6 to 10%, 2.7 to 9.5%, 2.8 to 9%, 2.9 to 8.5%, particularly 3 to 8%.
  • the molar ratio (Li 2 O + Na 2 O + K 2 O) / Al 2 O 3 is preferably 5 or less, 4 or less, 3.5 or less, 3.4 or less, 3.3 or less, 3.2 or less, 3.1 or less, particularly 3 or less.
  • the content of MgO+CaO+SrO+BaO is preferably 0-5%, 0-4%, 0-3.7%, 0-3%, 0-2%, 0-1%, 0-0.9%, 0-0.8%, 0-0.7%, 0-0.6%, 0-0.5%, 0-0.4%, 0-0.3%, 0-0.2%, and especially 0-0.1%.
  • CaO is one of the components that cuts the network structure of glass, like alkali metal oxides, reduces high-temperature viscosity, and improves meltability and formability. It is also a component that affects chemical durability. If the CaO content is too high, there is a risk of chemical durability decreasing. Furthermore, CaO is also a component that is prone to causing a decrease in ion exchange performance and deterioration of the ion exchange solution.
  • the BaO content is preferably 0-1%, 0-0.9%, 0-0.8%, 0-0.7%, 0-0.6%, 0-0.5%, 0-0.4%, 0-0.3%, 0-0.2%, 0-0.1%, 0-0.01%, 0-less than 0.01%, and particularly 0-0.001%. If the BaO content is too high, chemical durability is likely to decrease.
  • CaO is a component that reduces ion exchange performance.
  • the molar ratio (MgO+CaO+SrO+BaO/(1-CaO) is preferably 0-10, 0-5, 0-4, 0-3.7, 0-3, 0-2, 0-1, 0-0.9, 0-0.8, 0-0.7, 0-0.6, 0-0.5, 0-0.4, 0-0.3, 0-0.2, and especially 0-0.1.
  • the molar ratio (Li 2 O + Na 2 O + K 2 O + MgO + CaO + SrO + BaO-Al 2 O 3 ) / (SiO 2 + Al 2 O 3 + B 2 O 3 ) means the ratio of the component that cuts the network structure in the glass to the component that forms the network structure in the glass.
  • alkali metal oxides and alkaline earth metal oxides have the effect of cutting the network structure in the glass, but since Al 2 O 3 forms a network structure in the glass together with alkali metal oxides, an alkali metal oxide with the same content as Al 2 O 3 does not have the effect of cutting the network.
  • SiO 2 , Al 2 O 3 and B 2 O 3 are components that form a network structure in the glass.
  • TiO2 like Fe2O3 , is a component that is mixed in as an impurity from glass raw materials and manufacturing equipment. If the TiO2 content is too high, the glass will be colored black and the transmittance of visible light will decrease. Therefore, the TiO2 content is preferably 0-0.5%, 0-0.3%, 0-0.1%, 0-0.05%, 0-0.04%, and particularly 0-0.03%.
  • R 2 O+R'O-Al 2 O 3 )/(SiO 2 +Al 2 O 3 +B 2O3 ) means the molar ratio ( Li2O + Na2O + K2O +MgO+CaO+SrO+BaO- Al2O3 )/( SiO2 + Al2O3 + B2O3 ).

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)
  • Surface Treatment Of Glass (AREA)

Abstract

Le verre de l'invention est caractéristique en ce qu'il comprend, en % en moles, 60 à 85% de ＳｉＯ２, 1 à 20% de Ａｌ２Ｏ３, 0 à 5% de Ｂ２Ｏ３, 1 à 20% de Ｌｉ２Ｏ＋Ｎａ２Ｏ＋Ｋ２Ｏ et 0 à 5% de ＭｇＯ＋ＣａＯ＋ＳｒＯ＋ＢａＯ, en tant que composition de verre.
PCT/JP2023/045953 2022-12-27 2023-12-21 Verre, plaque de verre pour renforcement, et plaque de verre renforcé WO2024143156A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2022-209199 2022-12-27
JP2022209199A JP2024093065A (ja) 2022-12-27 2022-12-27 ガラス、強化用ガラス板及び強化ガラス板

Publications (1)

Publication Number Publication Date
WO2024143156A1 true WO2024143156A1 (fr) 2024-07-04

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2023/045953 WO2024143156A1 (fr) 2022-12-27 2023-12-21 Verre, plaque de verre pour renforcement, et plaque de verre renforcé

Country Status (2)

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JP (1) JP2024093065A (fr)
WO (1) WO2024143156A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018100214A (ja) * 2016-11-30 2018-06-28 コーニング インコーポレイテッド リチウム含有アルミノシリケートガラス
WO2020138063A1 (fr) * 2018-12-27 2020-07-02 日本電気硝子株式会社 Verre pour récipient de médicament, et tube en verre pour récipient de médicament et récipient de médicament l'utilisant
JP2021503429A (ja) * 2017-11-17 2021-02-12 コーニング インコーポレイテッド 熱履歴の影響を受けにくいアルカリ含有ガラス

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018100214A (ja) * 2016-11-30 2018-06-28 コーニング インコーポレイテッド リチウム含有アルミノシリケートガラス
JP2021503429A (ja) * 2017-11-17 2021-02-12 コーニング インコーポレイテッド 熱履歴の影響を受けにくいアルカリ含有ガラス
WO2020138063A1 (fr) * 2018-12-27 2020-07-02 日本電気硝子株式会社 Verre pour récipient de médicament, et tube en verre pour récipient de médicament et récipient de médicament l'utilisant

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