Refrigerant mixtures comprising difluoromethane, pentafluoroethane, and tetrafluoropropene and uses thereof
US9598621B2 · kind B2 · utility
20Cited by
1References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 6, 2014 |
| Grant date | Mar 21, 2017 |
| Priority date | — |
| Expiry date | Oct 6, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2205/40
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
In accordance with the present invention refrigerant compositions are disclosed. The refrigerant compositions contain comprise 11-28 weight percent difluoromethane; 34-59 weight percent pentafluoroethane; and 21-38 weight percent 2,3,3,3-tetrafluoropropene. The refrigerant compositions are useful in processes to produce cooling, in methods for replacing refrigerant R-404A or R-507A, and in refrigeration systems. These inventive refrigerant compositions can be used in stationary and mobile refrigeration equipment, and are particularly useful for transport refrigeration units.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.