Method of producing tempered glass sheet
US9061933B2 · kind B2 · utility
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2References
3Claims
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Key dates
| Filing date | Aug 21, 2012 |
| Grant date | Jun 23, 2015 |
| Priority date | — |
| Expiry date | Apr 12, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/315
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Provided is a method of producing a tempered glass sheet, comprising applying tempering treatment to a glass sheet by increasing the content of SiO2 in terms of mass in a surface region of a glass sheet through application of thermal treatment to the glass sheet to 1.03 or more times that in an interior region positioned at a depth of 1 μm from a surface of the glass sheet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.