Mixtures of 1,1,1-trifluoroethane, perfluoropropane and propane, and their applications as refrigerant fluids, as aerosol propellants or as blowing agents for plastic foams
US5474695A · kind A · utility
6Cited by
12References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 23, 1994 |
| Grant date | Dec 12, 1995 |
| Priority date | — |
| Expiry date | Dec 23, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S264/05
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
To replace chlorofluorocarbons as refrigerant fluids, the invention proposes to employ mixtures containing, on a mass basis, approximately 25 to 65% of 1,1,1-trifluoroethane, 1 to 70% of perfluoropropane and 5 to 34% of propane. The mixtures according to the invention can also be employed as aerosol propellants or as blowing agents for plastic foams.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.