Resistance of surfaces to metal marking
US4159352A · kind A · utility
5Cited by
9References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 11, 1977 |
| Grant date | Jun 26, 1979 |
| Priority date | — |
| Expiry date | Oct 11, 1997 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05D3/12
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A method of increasing the resistance of colored surfaces, including white, light and pastel colors, to metal marking comprises treating the surface with a finely divided, powdered material to provide an extremely thin layer of the powdered material on the surface, the treating being for a period of time sufficient to increase the resistance of the surface to metal marking.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.