Stabilized heat transfer compositions, methods and systems
US11124684B2 · kind B2 · utility
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5References
20Claims
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Inventor
Key dates
| Filing date | Dec 24, 2019 |
| Grant date | Sep 21, 2021 |
| Priority date | — |
| Expiry date | Dec 24, 2039 |
Classification
- Technology area (CPC —)General
Abstract
The present invention relates to heat transfer compositions comprising refrigerant, lubricant and stabilizer, wherein the refrigerant comprises about 49% by weight difluoromethane (HFC-32), about 11.5% by weight pentafluoroethane (HFC-125), and about 39.5% by weight trifluoroiodomethane (CF3I), and wherein said lubricant comprises polyol ester (POE) lubricant and/or polyvinyl ether (PVE) lubricant, and wherein said stabilizer comprises an alkylated naphthalene and optionally but preferably an acid depleting moiety.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.