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US 2015/0175469 A1Published application
Method for producing tempered glass
AssigneeNippon Electric Glass Co., Ltd.
InventorMasashi Tabe
Life of this patent
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Abstract
A method of manufacturing a tempered glass includes: subjecting a glass to be tempered to ion exchange treatment to obtain a tempered glass having a compressive stress layer; and subjecting the tempered glass to heat treatment at a heat treatment temperature of 300° C. or more and less than (a temperature of the ion exchange treatment+10° C.) so that a compressive stress (CS) of the compressive stress layer becomes from 120 to 1,200 MPa.
Claims18
A method of manufacturing a tempered glass, comprising:
- subjecting a glass to be tempered to ion exchange treatment to obtain a tempered glass having a compressive stress layer;
- and
- subjecting the tempered glass to heat treatment at a heat treatment temperature of 300° C. or more and less than (a temperature of the ion exchange treatment+10° C.) so that a compressive stress (CS) of the compressive stress layer becomes from 120 to 1,200 MPa.
Dependencies are inferred from the claim text.