Magnetic multilayer pigment flake and coating composition
US9508475B2 · kind B2 · utility
1Cited by
24References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 3, 2013 |
| Grant date | Nov 29, 2016 |
| Priority date | — |
| Expiry date | Apr 21, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F1/26
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention provides a magnetic multilayer pigment flake and a magnetic coating composition that are relatively safe for human health and the environment. The pigment flake includes one or more magnetic layers of a magnetic alloy and one or more dielectric layers of a dielectric material. The magnetic alloy is an iron-chromium alloy or an iron-chromium-aluminum alloy, having a substantially nickel-free composition. The coating composition includes a plurality of the pigment flakes disposed in a binder medium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.