Decorative porous inorganic layer compatible with ion exchange processes
US11554986B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 24, 2014 |
| Grant date | Jan 17, 2023 |
| Priority date | — |
| Expiry date | Apr 3, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03C2217/72
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Embodiments of methods for forming strengthened glass articles comprise providing an exchangeable glass substrate having a coefficient of thermal expansion (CTE) between about 60×10−7°/C. to about 110×10−7°/C., depositing at least one decorative porous inorganic layer onto at least a portion of the surface of the glass substrate, wherein the decorative porous inorganic layer comprises a glass transition temperature (Tg)≥450° C., a glass softening temperature (Ts)≥650° C., wherein the difference in CTE values between the glass substrate and the decorative porous inorganic layer is within 10×10−7°/C.; and curing the glass substrate and the deposited decorative porous inorganic layer at a temperature greater than the Ts of the decorative porous inorganic layer; and chemically strengthening the cured glass substrate and the decorative porous inorganic layer thereon via ion exchange at a temperature below the Tg of the decorative porous inorganic layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.