Coating composition with flourescent colorants having color effect dependent on light intensity
US7384694B2 · kind B2 · utility
13Cited by
7References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 12, 2003 |
| Grant date | Jun 10, 2008 |
| Priority date | — |
| Expiry date | Sep 12, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31504
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A coating composition for applying to a substrate and containing a resinous binder with fluorescent colorants in an upper layer and light-absorbing particles in a lower layer. The coating composition exhibits a first color when exposed to light of a first intensity, the first color being dominated by absorbance of light by the colorants and the light-absorbing particles. When exposed to light of a higher intensity, the coating composition exhibits a second color dominated by fluorescent light emitted by the colorants.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.