Method for producing glass article, and glass article
US11073715B2 · kind B2 · utility
1Cited by
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17Claims
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Key dates
| Filing date | Sep 25, 2017 |
| Grant date | Jul 27, 2021 |
| Priority date | — |
| Expiry date | Jan 21, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P40/57
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method for producing a glass article from a glass member including a glass substrate including a first main surface, a second main surface and an end face, and an irregular layer formed in at least one of main surfaces, includes forming an irregular layer having a glass transition point Tg which is equal to or lower than a glass transition point in a central part of the glass member in a thickness-direction sectional view and performing a heat treatment on the glass member so as to have an equilibrium viscosity in the central part of the glass member in thickness-direction sectional view of 1017 Pa·s or lower.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.