Composition and process for treating tinplate and aluminum
US5603754A · kind A · utility
7Cited by
3References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 5, 1996 |
| Grant date | Feb 18, 1997 |
| Priority date | — |
| Expiry date | Jan 5, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23C22/361
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A bath for the treatment of DI cans that contains phosphate ions, at least one of zirconium and titanium compounds, oxidizing agent at no more than 500 ppm, and fluorides at no more than 2,000 ppm as fluorine, and that has a pH of 2.0 to 4.0, is useful for treating the surface of both aluminum and tinplate cans prior to the painting/printing thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.