Heating medium composition, and method for feeding an oxidation inhibitor to a heat exchange apparatus
US7025898B2 · kind B2 · utility
0Cited by
8References
7Claims
0Family size
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Key dates
| Filing date | Jul 30, 2002 |
| Grant date | Apr 11, 2006 |
| Priority date | — |
| Expiry date | Mar 4, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K5/10
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A heating medium composition for suppressing deterioration of both a metal piping and a synthetic resin piping. The heating medium composition contains an antifreeze ingredient, water, a corrosion inhibitor, and a surfactant. The corrosion inhibitor includes a triazole compound, and the surfactant includes an anionic surfactant. A bag in a feeder provided in a given position along a circulation piping is filled with an oxidation inhibitor. By flowing a heating medium composition through the feeder, the oxidation inhibitor is gradually dissolved in the heating medium composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.