Copper aluminoborosilicate glass and uses thereof
US12304859B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 17, 2019 |
| Grant date | May 20, 2025 |
| Priority date | — |
| Expiry date | Sep 22, 2042 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03C3/097
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The present invention provides an aluminoborosilicate glass of composition, expressed as percentages by weight of oxides, containing: 60% to 70% of SiO2, 13% to 20% of Al2O3, 1% to 9% of B2O3, 0 to 3% of P2O5, 0.5% to 4% of MgO, 1% to 4% of BaO, 0 to 3% of CaO, 0 to 3% of SrO, 2% to 10% of ZnO, 0 to 2% of Li2O, 0 to 2% of Na2O, 0 to 2% of K2O, 0.1% to 3% of CuO, optionally up to 1% of at least one fining agent; and optionally up to 2% of at least one coloring agent other than CuO, with MgO+BaO+CaO+SrO<6%, 0.2%<Li2O+Na2O+K2O<2%, and B2O3+MgO+Li2O—(BaO+CaO+SrO+CuO)<6.4%. The invention also provides an article constituted at least in part of an aluminoborosilicate glass, the article being selected from glazing and a cooktop for associating with induction heater means with infrared sensors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.