Aqueous sodium salt metal cleaner and method of using same
US5902415A · kind A · utility
10Cited by
47References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 29, 1998 |
| Grant date | May 11, 1999 |
| Priority date | — |
| Expiry date | Jan 29, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D2111/16
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An alkali metal cleaning composition for cleaning metal and for inhibiting corrosion of metal. The composition is composed of an alkali carbonate salt, a surfactant, and a corrosion inhibitor. A preferred corrosion inhibitor is an alkali metal silicate. Additional metal corrosion inhibitors such as a combination of a triazole compound and an alkali metal borate also can be employed. Such alkali carbonate compositions are readily water soluble and remain in solution over prolonged storage periods.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.