Azeotrope-like compositions of tetrafluoroethane, pentafluoropropane and water
US6638987B2 · kind B2 · utility
5Cited by
5References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 10, 2002 |
| Grant date | Oct 28, 2003 |
| Priority date | — |
| Expiry date | Jun 10, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2375/04
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
This invention provides azeotrope-like compositions of 1,1,1,2-tetrafluoroethane, 1,1,1,3,3-pentafluoropropane-245fa and water that are environmentally desirable for use as refrigerants, aerosol propellants, metered dose inhalers, blowing agents for polymer foam, heat transfer media, and gaseous dielectrics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.