Heat transfer compositions
US8808571B2 · kind B2 · utility
2Cited by
19References
51Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 20, 2011 |
| Grant date | Aug 19, 2014 |
| Priority date | — |
| Expiry date | May 20, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49718
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention provides a heat transfer composition comprising (i) a first component selected from trans-1,3,3,3-tetrafluoropropene (R-1234ze(E)), cis-1,3,3,3-tetrafluoropropene (R-1234ze(Z)) and mixtures thereof; (ii) carbon dioxide (R-744); and (iii) a third component selected from 1,1-difluoroethane (R-152a), fluoroethane (R-161), and mixtures thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.