Compositions and process for inhibiting corrosion of aluminum
US4452758A · kind A · utility
16Cited by
11References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 16, 1983 |
| Grant date | Jun 5, 1984 |
| Priority date | — |
| Expiry date | May 16, 2003 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K5/20
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Antifreeze compositions and a process for inhibiting the corrosion of aluminum in contact with aqueous liquids are disclosed. The antifreeze compositions comprise a combination of an alkanolamine, an alkali metal phosphate, a heterocyclic nitrogen compound, as defined, and a conventional corrosion inhibitor in effective corrosion inhibiting amounts. The aqueous liquid can be an alcohol such as ethylene glycol.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.