Near-azeotropic ternary compositions constituted by hydrogenated fluorocarbons and hydrocarbons, suitable as refrigerating fluids
USRE42652E1 · kind E1 · reissue
1Cited by
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9Claims
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Key dates
| Filing date | Feb 23, 2006 |
| Grant date | Aug 30, 2011 |
| Priority date | — |
| Expiry date | Feb 23, 2026 |
Classification
- Technology area (CPC —)General
Abstract
Near-azeotropic ternary compositions of hydrofluorocarbons with n-butane or isobutane selected from:Said compositions have zero ODP, very low GWP and good solvent power for mineral lubricants. They are utilizable as drop-in substituents of R-12 in domestic refrigeration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.