Dealkalinization of sheets of glass with low alkalines content
US5648172A · kind A · utility
7Cited by
7References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 29, 1994 |
| Grant date | Jul 15, 1997 |
| Priority date | — |
| Expiry date | Sep 29, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/315
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
This invention relates to a glass sheet having a low content of alkaline oxides and alkaline-earth oxides, in the composition of which the sum of the alkaline and alkaline-earth oxides is less than or equal to 15%, with a sodium oxide content less than or equal to 10%, the values being expressed in percentages by weight, at least one of the faces of which is constituted of a surface zone virtually devoid, notably, of alkaline ions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.