Method for antirust treatment of steel stocks
US4354881A · kind A · utility
4Cited by
2References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 5, 1981 |
| Grant date | Oct 19, 1982 |
| Priority date | — |
| Expiry date | May 5, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23F11/10
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A steel stock such as hot-rolled pickled steel plate, cold-rolled steel plate, cast iron or the like is subjected to antirust treatment with an aqueous solution or an emulsion consisting mainly of a 1-hydroxybenzotriazole compound represented by the general formula: ##STR1## where X and Y represent hydrogen atoms and hydroxy, alkyl, carboxyl, nitro and sulfonic groups, and further containing one or more of aliphatic dicarboxylic acids added thereto, and having a pH within the range of 7-10.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.