Patterned glass articles and methods of making the same
US11560330B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 29, 2018 |
| Grant date | Jan 24, 2023 |
| Priority date | — |
| Expiry date | Jun 30, 2039 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03C2204/00
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A patterned article that includes: an alkali silicate glass substrate comprising a thickness and a primary surface, the substrate having a bulk composition; a patterned region defined by at least a portion of the primary surface; and a compressive stress region that extends from the at least a portion of the primary surface to a first depth within the substrate. The patterned region comprises a surface roughness (Ra) from about 1 nm to about 600 nm and at least one of a plurality of protrusions and a plurality of depressions. Further, each of the compressive stress region and the patterned region comprises a concentration of at least one alkali metal ion that is different than the concentration of the at least one alkali metal ion in the bulk composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.