Color effect pigments and method of forming the same
US6984682B2 · kind B2 · utility
1Cited by
18References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 21, 2002 |
| Grant date | Jan 10, 2006 |
| Priority date | — |
| Expiry date | Oct 14, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09C2200/304
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A metallic effect pigment including a metallic, corrosion resistant reflective core of reflectivity from 40% to 80%; having deposited thereupon at least one dielectric coating layer formed of at least one metal oxide, the metal oxide layer having been formed by deposition on the core by hydrolysis of a hydrolyzable metal salt in an strongly acidic aqueous medium, and thereafter full transformation into the oxide by calcination.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.