Process for strengthening glass
US4872896A · kind A · utility
76Cited by
10References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 27, 1988 |
| Grant date | Oct 10, 1989 |
| Priority date | — |
| Expiry date | May 27, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03C21/002
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
There is disclosed a process for strengthening a glass article. This process comprises the steps of: 1. providing a glass article comprised of from about 1 to about 30 weight percent of at least one compound of a first monovalent exchangable cation, 2. coating the surface of said glass article with a source of a second exchangable cation which has an atomic radius larger than that of the first exchangable cation, and thereafter 3. subjecting said coated glass article to a source of microwave radiation at a frequency of from about 0.9 to about 22.1 Gigaherz.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.