Colored glass frits and related methods for laser marking applications
US12195391B2 · kind B2 · utility
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4References
7Claims
0Family size
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Key dates
| Filing date | May 22, 2020 |
| Grant date | Jan 14, 2025 |
| Priority date | — |
| Expiry date | May 15, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03C2205/00
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A marking composition for forming marks or indicia on a substrate is provided for laser marking applications. The composition includes a glass frit, a carrier, and absorber particles. The glass frit includes alkali metal oxides, glass forming oxides, and one or more transition metal oxides. The glass frit is devoid of at least one of bismuth and zinc.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.