Enamel
US8329779B2 · kind B2 · utility
0Cited by
1References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 20, 2010 |
| Grant date | Dec 11, 2012 |
| Priority date | — |
| Expiry date | Apr 8, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K9/08
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The invention relates to a translucent or transparent, colored enamel that contains metal nanoparticles that lost their natural tendency to aggregate with each other, and having a color essentially provided by the reflection of light. The nanoparticles have lost their natural capability to aggregate with each other due to the application of a coating, or because they have been functionalised electrostatically or using highly sterically hindered entities or using hydrophilic entities located at the surface thereof. The nanoparticles may be gold nanoparticles that impart an intense and deep red to said enamel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.