Refrigerant-containing composition, use thereof, refrigerating method using same, and refrigerator comprising same
US11773307B2 · kind B2 · utility
1Cited by
2References
8Claims
0Family size
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Key dates
| Filing date | Apr 25, 2019 |
| Grant date | Oct 3, 2023 |
| Priority date | — |
| Expiry date | Apr 25, 2039 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2040/30
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present disclosure addresses the problem of providing a refrigerant composition that has a low GWP and a refrigerating capacity equivalent to that of R404A, which is currently widely used. As a solution to the problem, the present disclosure provides a composition containing carbon dioxide and a mixture of fluorinated hydrocarbons, the mixture containing difluoromethane (R32), pentafluoroethane (R125), 2,3,3,3-tetrafluoropropene (R1234yf), 1,1,1,2-tetrafluoroethane (R134a), and carbon dioxide (CO2) in specific concentrations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.