Refrigerant of 1,1-difluoroethylene
US6054064A · kind A · utility
21Cited by
7References
19Claims
0Family size
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Inventors
Key dates
| Filing date | Jul 9, 1997 |
| Grant date | Apr 25, 2000 |
| Priority date | — |
| Expiry date | Jul 9, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2205/22
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Refrigerants comprising 1,1-difluoroethylene and one or more hydrofluoroalkanes, in particular difluoromethane (R-32), trifluoromethane (R-23), 1,1-difluoroethane (R-152a), 1,1,1-trifluoroethane (R-143a), 1,1,1,2-tetrafluoroethane (R-134a) and/or pentafluoroethane (R-125).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.