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1. WO2020203200 - CRYSTALLIZED GLASS, CHEMICALLY STRENGTHENED GLASS, AND PRODUCTION METHOD THEREFOR

Publication Number WO/2020/203200
Publication Date 08.10.2020
International Application No. PCT/JP2020/011304
International Filing Date 13.03.2020
IPC
C03C 10/12 2006.01
CCHEMISTRY; METALLURGY
03GLASS; MINERAL OR SLAG WOOL
CCHEMICAL 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
10Devitrified glass ceramics, i.e. glass ceramics having a crystalline phase dispersed in a glassy phase and constituting at least 50% by weight of the total composition
04Silicate or polysilicate crystalline phase, e.g. mullite, diopside, sphene, plagioclase
10Alkali metal aluminosilicate crystalline phase
12Lithium aluminosilicate, e.g. spodumene, eucryptite
C03C 3/083 2006.01
CCHEMISTRY; METALLURGY
03GLASS; MINERAL OR SLAG WOOL
CCHEMICAL 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
3Glass compositions
04containing silica
076with 40% to 90% silica by weight
083containing aluminium oxide or an iron compound
C03C 21/00 2006.01
CCHEMISTRY; METALLURGY
03GLASS; MINERAL OR SLAG WOOL
CCHEMICAL 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
21Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals into the surface
Applicants
  • AGC株式会社 AGC INC. [JP]/[JP]
Inventors
  • 古田 仁美 FURUTA Hitomi
  • 福士 恭基 FUKUSHI Takanori
  • 李 清 LI Qing
  • 荒井 雄介 ARAI Yusuke
Agents
  • 特許業務法人栄光特許事務所 EIKOH PATENT FIRM, P.C.
Priority Data
2019-07273605.04.2019JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) CRYSTALLIZED GLASS, CHEMICALLY STRENGTHENED GLASS, AND PRODUCTION METHOD THEREFOR
(FR) VERRE CRISTALLISÉ, VERRE CHIMIQUEMENT RENFORCÉ ET LEUR PROCÉDÉ DE PRODUCTION
(JA) 結晶化ガラス及び化学強化ガラス並びにそれらの製造方法
Abstract
(EN)
The present invention relates to a three-dimensionally shaped crystallized glass constituted from a plurality of round corner shapes including a smallest round corner shape with a mean curvature radius of 5.0 × 102 mm or less, and a largest round corner shape with a mean curvature radius of 1.0 × 103 mm or greater, wherein, as measured using a birefringence measurement device by irradiating a 543 nm wavelength light orthogonally onto one or more points on a circular arc of each round corner shape, the maximum value for retardation is 20 nm/mm or less, and the haze value for the largest round corner shape, converted to a thickness of 0.8 mm, is 1.0% or lower.
(FR)
La présente invention concerne un verre cristallisé de forme tridimensionnelle constitué d'une pluralité de formes de coin arrondi comprenant une forme de coin arrondi la plus petite ayant un rayon de courbure moyen de 5,0 × 102 mm ou moins, et une forme de coin arrondi la plus grande ayant un rayon de courbure moyen de 1,0 × 103 mm ou plus, tel que mesuré à l'aide d'un dispositif de mesure de biréfringence par irradiation d'une lumière de longueur d'onde de 543 nm orthogonalement sur un ou plusieurs points sur un arc circulaire de chaque forme de coin arrondi, la valeur maximale pour le retard est de 20 nm/mm ou moins, et la valeur de trouble pour la forme de coin arrondi la plus grande, convertie en une épaisseur de 0,8 mm, est inférieure ou égale à 1,0 %.
(JA)
本発明は、平均曲率半径が5.0×10mm以下である最小のR形状及び平均曲率半径が1.0×10mm以上である最大のR形状を含む複数のR形状から構成される3次元形状の結晶化ガラスであって、各R形状の円弧上の1点以上について垂直に波長543nmの光を照射して複屈折測定装置を用いて測定されたリタデーションの最大値が20nm/mm以下であり、前記最大のR形状における厚さ0.8mm換算のヘーズ値が1.0%以下である結晶化ガラスに関する。
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