Refrigerant-containing composition, and refrigerating method, refrigerating device operating method, and refrigerating device using said composition
US11827833B2 · kind B2 · utility
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9Claims
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Key dates
| Filing date | Jul 30, 2021 |
| Grant date | Nov 28, 2023 |
| Priority date | — |
| Expiry date | Oct 14, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2040/30
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present disclosure provides a composition comprising a refrigerant characterized by having a coefficient of performance (COP) and a refrigerating capacity (Capacity) equivalent to or higher than those of R134a, and having a sufficiently low GWP. The present disclosure is, specifically, a composition comprising a refrigerant, the refrigerant comprising cis-1,2-difluoroethylene (HFO-1132(Z)) and 2,3,3,3-tetrafluoropropene (HFO-1234yf), wherein HFO-1132(Z) is present in an amount of 53.0 to 59.5 mass %, and HFO-1234yf is present in an amount of 47.0 to 40.5 mass %, based on the total mass of IFO-1132(Z) and HFO-1234yf.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.