Method of protecting metals from corrosion using thiol compounds
US7524535B2 · kind B2 · utility
19Cited by
12References
9Claims
0Family size
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Key dates
| Filing date | Feb 25, 2004 |
| Grant date | Apr 28, 2009 |
| Priority date | — |
| Expiry date | Feb 25, 2024 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23C2222/20
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
This invention relates to a method of coating a metal surface by applying a solution containing an alkanethiol compound and a solvent to a metal surface, allowing the formation of a self-assembled monolayer, which presents as a robust barrier to corrosion. The alkanethiol compounds have a general formula, R(CH2)nSH, where R represents methyl, carboxyl, hydroxyl, formyl, or amide; n is in the range of 7 to 21, preferably in the range of 12 to 18.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.