Protective coating system for aluminum
US5104514A · kind A · utility
534Cited by
4References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 16, 1991 |
| Grant date | Apr 14, 1992 |
| Priority date | — |
| Expiry date | May 16, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25D11/246
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Aluminum articles are provided with enhanced surface protection by initially abrading the surface to produce a surface microroughness of 400-700 microinches (RMS), and hard anodizing the roughened surface to a depth of at least 0.0020 inch. The anodized surface is then coated with a protective material to a thickness of 0.0005-0.015 inch. The protective coating materials may be fusible polymers which are fused on the surface or fluid organic coating compositions which are dried on the surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.