Alkaline cleaning compositions for metal substrates
US10577507B2 · kind B2 · utility
1Cited by
10References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 13, 2014 |
| Grant date | Mar 3, 2020 |
| Priority date | — |
| Expiry date | Jan 21, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23C2222/10
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A composition for application to a metal substrate comprises an aqueous carrier, a hydroxide anion and/or a phosphate anion, and a corrosion inhibitor comprising an azole compound, a rare earth ion, an alkali earth metal ion, and/or a transition metal ion. A substrate or article includes the composition for application to a metal substrate and a coating on the composition. A method of fabricating a substrate comprises applying the composition to a substrate, allowing the composition to dry to form a dried composition, and applying a coating on the dried composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.