Heat transfer fluids and corrosion inhibitor formulations for use thereof
US8617416B1 · kind B1 · utility
5Cited by
30References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 7, 2012 |
| Grant date | Dec 31, 2013 |
| Priority date | — |
| Expiry date | Sep 7, 2032 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23F11/184
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Disclosed herein is a heat transfer fluid concentrate comprising: greater than or equal to 90 weight percent of a freezing point depressant; 16 to 80 ppm of magnesium ions; an azole compound; an inorganic phosphate; a carboxylate; and an acrylate based polymer, wherein the heat transfer fluid concentrate has a pH of 7-9.5 and the weight ratio of acrylate based polymer to magnesium ions is 1 to 25. The heat transfer fluid concentrate can be used to make a heat transfer fluid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.