Chromium containing coating
US4186035A · kind A · utility
2Cited by
6References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 16, 1978 |
| Grant date | Jan 29, 1980 |
| Priority date | — |
| Expiry date | Oct 16, 1998 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23C22/83
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A chromium-containing treating composition, which is especially useful for rinsing phosphatized metal surfaces, contains hexavalent chromium-containing compound, methylene chloride and a substance that can be acetamide, N,N-dimethylformamide, acetone oxime and mixtures thereof. The composition is a homogeneous solution that is particularly useful where aqueous systems may create potential water pollution problems.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.