Metallic bismuth pigments
US12110398B2 · kind B2 · utility
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3References
18Claims
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Key dates
| Filing date | May 12, 2021 |
| Grant date | Oct 8, 2024 |
| Priority date | — |
| Expiry date | Dec 5, 2042 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09C2220/20
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
It has been found that bismuth can be milled into pigment platelets. A metallic pigment comprises bismuth metal and an organic additive. The pigment is platelet shaped. In addition, the platelet shaped pigment comprising bismuth metal can be produced by physical vapor deposition (PVD) methods. In some embodiments, the metallic pigment comprises multiple layers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.