Alloy color effect materials and production thereof
US6440208B1 · kind B1 · utility
13Cited by
19References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 6, 2000 |
| Grant date | Aug 27, 2002 |
| Priority date | — |
| Expiry date | Dec 29, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23C28/3455
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A color effect material is composed of a plurality of encapsulated substrate platelets in which each platelet is encapsulated with copper, zinc, an alloy of copper, or an alloy of zinc first layer which acts as a reflector to light directed thereon, a second layer encapsulating the first layer in which the second layer provides an optically variable reflection of light impinging thereon and a third layer encapsulating the second layer and being selectively transparent to light directed thereon.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.