Effect pigments having a reflective core and semiconductor layers
US12290579B2 · kind B2 · utility
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22References
19Claims
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Key dates
| Filing date | Dec 6, 2022 |
| Grant date | May 6, 2025 |
| Priority date | — |
| Expiry date | Dec 6, 2042 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09C2220/20
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Disclosed herein is an effect pigment having a layer stack which comprises a highly reflective metallic flake having a first major interface and opposed to this first interface a second major interface, and at least one side surface and directly adjacent on one or of both of these major interfaces a layer of a semiconducting material having an average atomic composition of:
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.