Ceramic pigments
US8029615B2 · kind B2 · utility
0Cited by
4References
14Claims
0Family size
Inventor
Key dates
| Filing date | Oct 30, 2007 |
| Grant date | Oct 4, 2011 |
| Priority date | — |
| Expiry date | Oct 30, 2027 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09C2200/301
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A pearlescent pigment includes a ceramic flake coated with a metal oxide. The metal oxide is, preferably, an oxide of titanium, iron, tin, chromium1, zirconium or a combination thereof, and the refractive index of the metal oxide coating is preferably at least 0.5 higher than that of the ceramic flake. The pearlescent pigment may be included in a coating applied to a metallic or plastic surface to give the surface a lustrous or pearlescent optical effect.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.