Methods and compositions for inhibiting corrosion on metal surfaces
US11597846B2 · kind B2 · utility
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8Claims
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Key dates
| Filing date | Dec 4, 2018 |
| Grant date | Mar 7, 2023 |
| Priority date | — |
| Expiry date | Nov 25, 2039 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2103/16
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Methods and compositions for inhibiting corrosion of a metal product are provided. The metal product can be contacted with water that includes at least one carbonate and/or bicarbonate salt, or otherwise has components that increase the alkalinity of the water. In addition, or as an alternative, the water can include a stannous corrosion inhibitor. The water can be evaporated off of a surface of the metal product to provide a residual of the salt on the surface and/or a protective stannous film on the surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.