Color effect materials and production thereof
US6475273B1 · kind B1 · utility
15Cited by
18References
40Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 26, 2000 |
| Grant date | Nov 5, 2002 |
| Priority date | — |
| Expiry date | Dec 15, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09C2220/20
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A color effect material is composed of a plurality of encapsulated substrate platelets in which each platelet is encapsulated with a first layer selected from the group consisting of silicon, aluminum, titanium nitride and mixtures thereof, which acts as a reflector to light directed thereon, a second layer encapsulating the first layer in which the second layer provides a variable pathlength of light dependent on the angle of incidence of light impinging thereon and a third layer being selectively transparent to light directed thereon.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.