Surface treated steel sheets for paint coating
US4407899A · kind A · utility
43Cited by
2References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 17, 1981 |
| Grant date | Oct 4, 1983 |
| Priority date | — |
| Expiry date | Dec 17, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12799
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A steel sheet with its surface prepared for paint coating is disclosed. The surface treated steel sheet comprises a base sheet, and an iron-zinc alloy film plated on the base sheet in an amount of at least 0.1 g/m.sup.2 and having an iron content of from 3 to 30%. A composite silicate resin film is coated on the iron-zinc alloy film in an amount of from 0.05 to 5.0 g/m.sup.2. The resin film is composed of an acrylic copolymer, an epoxy resin, a silica sol and a trialkoxysilane compound. The treated surface provides superior paintability, degrease resistance and corrosion resistance after pain coating.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.