Cooling system cleaning solutions
US5062987A · kind A · utility
14Cited by
5References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 9, 1990 |
| Grant date | Nov 5, 1991 |
| Priority date | — |
| Expiry date | Oct 9, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D7/3281
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Cooling system cleaning solutions containing an EDTA salt, sorbitol, and a soluble nitrate salt are effective in removing scale, corrosion, and solder bloom from cooling systems without blackening aluminum, and can be formulated into concentrates having enhanced storage stability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.