Nitrogen substituted aromatic triazoles as corrosion control agents
US10858742B2 · kind B2 · utility
0Cited by
2References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 10, 2017 |
| Grant date | Dec 8, 2020 |
| Priority date | — |
| Expiry date | May 10, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2303/08
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Compositions and methods for inhibiting corrosion of metallic surfaces in contact with an aqueous medium such as copper, copper alloy, and steel surfaces of an open recirculating cooling water system. In certain embodiments, an aromatic triazole having an anionic substituent bonded to a nitrogen atom of the triazole (ANST) is used as the corrosion inhibitor. In other embodiments, the corrosion inhibitor is a reaction product of an aromatic triazole and an aldehyde (ATA).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.