Iron phosphate accelerator
US4149909A · kind A · utility
15Cited by
8References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 30, 1977 |
| Grant date | Apr 17, 1979 |
| Priority date | — |
| Expiry date | Dec 30, 1997 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23C22/10
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A combination of accelerators, including an oxidizing agent such as a chlorate or a bromate, in conjunction with a reducing agent, particularly, hydroxylamine sulfate is used in phosphatizing ferrous metal at low temperature to produce an iron phosphate coating with good salt spray resistance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.