Azeotrope-like compositions of 1-chloro-1,3,3,3-tetrafluoropropane and 1,2-dichloro-3,3,3-trifluoropropene
US6759381B1 · kind B1 · utility
16Cited by
10References
33Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 6, 2003 |
| Grant date | Jul 6, 2004 |
| Priority date | — |
| Expiry date | May 6, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D7/28
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Provided are azeotropic and azeotrope-like mixtures of 1-chloro-1,3,3,3-tetrafluoropropane and 1,2-dichloro-3,3,3-trifluoropropene that are useful as an intermediate in the production of HFC-245fa. HFC-245fa is useful as a nontoxic, zero ozone depleting fluorocarbon useful as solvents, blowing agents, refrigerants, cleaning agents, aerosol propellants, heat transfer media, gaseous dielectrics, fire extinguishing compositions and power cycle working fluids.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.