Electrodeposition coatings for use over aluminum substrates
US8323470B2 · kind B2 · utility
6Cited by
11References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 15, 2007 |
| Grant date | Dec 4, 2012 |
| Priority date | — |
| Expiry date | May 14, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05D2202/25
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A process for applying a coating on aluminum substrates by anionic electrodeposition of a phosphated epoxy resin made by phosphating a polyepoxide with both phosphoric acid and an organophosphonic acid and/or an organophosphinic acid. The coating has a reduced tendency to form pinholes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.