Glass-based articles with engineered stress profiles and methods of manufacture
US11548813B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 16, 2018 |
| Grant date | Jan 10, 2023 |
| Priority date | — |
| Expiry date | Apr 23, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB32B2605/00
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Laminated glass-based articles and methods of manufacture are disclosed. A glass-based article includes a glass-based substrate having a first surface and a second surface opposing the first surface defining a substrate thickness (t) in a range of about 0.1 millimeters to 3 millimeters, the glass-based substrate having a compressive region having a first compressive stress CS maximum at the first surface of the glass-based article extending to a depth of compression (DOC) and second local CS maximum at a depth of at least 25 μm from the first surface, wherein the glass-based substrate comprises a glass-based core substrate having a first side and a second side, the glass-based core substrate sandwiched between a glass-based first cladding substrate and a glass-based second cladding substrate, the first cladding substrate and second cladding substrate directly bonded to the first side and the second cladding substrate directly bonded to the second side.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.