Rust conversion coatings
US4609406A · kind A · utility
2Cited by
11References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 5, 1984 |
| Grant date | Sep 2, 1986 |
| Priority date | — |
| Expiry date | Sep 5, 2004 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23C22/00
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A rust conversion composition comprises the reaction product of a polyhydroxybenzoic acid and a alkane polyol, in admixture with a film forming polymer, and water. The composition is applied to rusted, iron-containing surface, and allowed to dry to form a hard, moisture and corrosion resistant film. Alternatively, the film may be removed to produce an iron-containing surface free of rust.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.