Low GWP heat transfer compositions containing difluoromethane and 1,3,3,3-tetrafluoropropene
US9845419B2 · kind B2 · utility
4Cited by
2References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 22, 2012 |
| Grant date | Dec 19, 2017 |
| Priority date | — |
| Expiry date | Jun 22, 2032 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2205/22
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Heat transfer compositions, methods and use wherein the composition comprising: (a) from about 5 to about 20% by weight of HFC-32 and (b) from about 80% to about 95% by weight of HFO-1234ze.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.