Corrosion resistant surface treatment for structural adhesive bonding to metal
US6887321B2 · kind B2 · utility
11Cited by
4References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 22, 2002 |
| Grant date | May 3, 2005 |
| Priority date | — |
| Expiry date | Apr 9, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25D11/18
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A metal substrate is anodized in a phosphoric acid anodizing solution. The anodized metal substrate is thereafter contacted with a hexavalent chromium free, trivalent chromium containing acid solution to coat the anodized metal substrate. The coated anodized metal substrate can be adhesively bonded to another such treated metal substrate to form a composite article. The resulting article exhibits excellent bonding and corrosion properties.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.