Title:
CHEMICALLY STRENGTHENED GLASS
Document Type and Number:
WIPO Patent Application WO/2024/014305
Kind Code:
A1
Abstract:
A chemically strengthened glass that is provided with a compressive stress layer having a compressive stress in the surface part and a tensile stress layer having a tensile stress inside, wherein the strengthening filling ration FIOX represented by formula (1) is 0.75-1.00 inclusive. UCT: Tensile squared area of chemically strengthened glass [MPa2•m]. UCT limit: Explosion threshold of chemically strengthened glass [MPa2•m]. t: Thickness of chemically strengthened glass [m]. DOC: Depth of compressive stress layer of chemically strengthened glass [m]. x: Depth of chemically strengthened glass from surface [m]. σ(x): Compressive stress value at depth x of chemically strengthened glass [MPa]. K1C: Fracture toughness value in composition at the center of thickness of chemically strengthened glass [MPa•m1/2].
Inventors:
KINOSHITA KIYOTAKA (JP)
MAEDA KAZUMI (JP)
OSADA KOSEI (JP)
MAEDA KAZUMI (JP)
OSADA KOSEI (JP)
Application Number:
PCT/JP2023/024226
Publication Date:
January 18, 2024
Filing Date:
June 29, 2023
Export Citation:
Assignee:
NIPPON ELECTRIC GLASS CO (JP)
International Classes:
C03C21/00; C03C3/083; C03C3/085; C03C3/091; C03C3/097
Domestic Patent References:
| WO2019004124A1 | 2019-01-03 | |||
| WO2020149236A1 | 2020-07-23 | |||
| WO2022039072A1 | 2022-02-24 | |||
| WO2022009854A1 | 2022-01-13 |
Attorney, Agent or Firm:
SHIROMURA Kunihiko et al. (JP)
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