Tempered glass
AssigneeNippon Electric Glass Co., Ltd.
InventorsMutsumu Fukada, Kiyotaka Kinoshita
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Abstract
A tempered glass has a sheet thickness of 0.6 mm or less and having a compression stress layer resulting from chemical tempering at a surface thereof, which satisfies requirements of CS×(DOL−20)/DOL>360 and DOL/t≤0.20 when the compression stress value of the compression stress layer is represented by CS (Mpa), the depth of the compression stress layer is represented by DOL (μm), and the sheet thickness is represented by t (μm).
Claims8
A tempered glass having a sheet thickness of less than 0.5 mm and a compression stress layer subjected to chemical tempering at a surface of the tempered glass, which satisfies
- CS≥670, 360<CS×(DOL−20)/DOL≤430, DOL/t≤0.20, and 85≤CT≤109.2,
- wherein CS (Mpa) represents a compression stress value caused by the compression stress layer, DOL (μm) represents a depth of the compression stress layer, t (μm) represents a sheet thickness of the compression stress layer, and CT (MPa) represents an internal tensile stress value of the compression stress layer.
Dependencies are inferred from the claim text.