Composition containing refrigerant including R32, R125, R143a and R134a, and refrigeration method using said composition, method for operating refrigerator, and refrigerator
US11286409B2 · kind B2 · utility
0Cited by
4References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 7, 2018 |
| Grant date | Mar 29, 2022 |
| Priority date | — |
| Expiry date | Dec 7, 2038 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25B2400/12
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Provided is a composition containing a refrigerant that has a refrigerating capacity equivalent to that of widely used R404A, and a low GWP. The composition contains a refrigerant that contains difluoromethane (R32), pentafluoroethane (R125), 1,1,1-trifluoroethane (R143a), and 1,1,1,2-tetrafluoroethane (R134a) in specific concentrations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.