Corrosion inhibiting compositions
US9657398B2 · kind B2 · utility
1Cited by
46References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 23, 2015 |
| Grant date | May 23, 2017 |
| Priority date | — |
| Expiry date | Jun 23, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23F11/187
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Compositions for inhibiting the corrosion of metals in contact with an aqueous system are provided. The corrosion inhibiting compositions may be used to maintain effective amounts of (1) an amino acid-based polymer, such as a polyaspartic acid compound, and (2) a dispersible and/or soluble tin compound in the aqueous system. The corrosion inhibiting compositions include the amino acid-based polymer and a dispersible and/or soluble tin compound and may optionally include a polycarboxylic acid chelating agent and/or a carboxylate/sulfonate functional copolymer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.