Coolant system cleaning solutions having silicate or siliconate-based corrosion inhibitors
US5071582A · kind A · utility
28Cited by
6References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 6, 1990 |
| Grant date | Dec 10, 1991 |
| Priority date | — |
| Expiry date | Aug 6, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23G1/24
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Cooling system cleaning solutions containing an EDTA salt, a polyhydroxy mono- or dicarboxylic sugar acid, and a soluble nitrate salt are effective in removing scale, corrosion, and solder bloom from cooling systems.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.