Heat transfer compositions
US8911641B2 · kind B2 · utility
4Cited by
17References
67Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 13, 2014 |
| Grant date | Dec 16, 2014 |
| Priority date | — |
| Expiry date | Jan 13, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2205/126
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A heat transfer composition comprising trans-1,3,3,3-tetrafluoropropene (R-1234ze(E)), carbon dioxide (R-744) and a third component selected from difluoromethane (R-32), 1,1-difluoroethane (R-152a), fluoroethane (R-161), 1,1,1,2-tetrafluoroethane (R-134a), propylene, propane and mixtures thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.