The present invention relates to a single glass plate which is provided with a first surface and a second surface facing the first surface, and which has a curved portion that is curved in a first direction and in a second direction that is perpendicular to the first direction. The radius of curvature of the curved portion in the first direction is 8,500 mm or less, and at least a part of the first surface in the curved portion is chemically strengthened. The Na amount in the first surface is smaller than the Na amount in the second surface in the first direction within the chemically strengthened region in the curved portion.
GLASS PLATE
GLASPLATTE
PLAQUE DE VERRE
2018-02-07
Patent
Elektronische Ressource
Englisch
IPC: | C03C Chemische Zusammensetzungen für Gläser, Glasuren oder Emails , CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUS ENAMELS / B60J WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES , Fenster, Windschutzscheiben und bewegbare Dächer, Türen oder Ähnliches für Fahrzeuge / C03B Herstellung oder Formgebung von Glas, Mineral- oder Schlackenwolle , MANUFACTURE OR SHAPING OF GLASS, OR OF MINERAL OR SLAG WOOL |
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