Azeotrope-like compositions or pentafluorobutane
US6686326B2 · kind B2 · utility
4Cited by
8References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 3, 2002 |
| Grant date | Feb 3, 2004 |
| Priority date | — |
| Expiry date | Jul 16, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2207/04
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Disclosed are azeotrope-like compositions comprising 1,1,1,3,3-pentafluorobutane, water and a hydrocarbon selected from the group consisting of n-pentane, isopentane, cyclopentane, n-hexane, and isohexane., said compositions 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.