Method of forming white appearing anodized films by laser beam treatment
US8993921B2 · kind B2 · utility
19Cited by
8References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 21, 2013 |
| Grant date | Mar 31, 2015 |
| Priority date | — |
| Expiry date | Jun 21, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24471
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The embodiments described herein relate to forming anodized films that have a white appearance. In some embodiments, an anodized film having pores with light diffusing pore walls created by varying the current density during an anodizing process is described. In some embodiments, an anodized film having light diffusing micro-cracks created by a laser cracking procedure is described. In some embodiments, a sputtered layer of light diffusing aluminum is provided below an anodized film. In some embodiments, light diffusing particles are infused within openings of an anodized layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.