Compositions of 1-bromopropane, 4-methoxy-1,1,1,2,2,3,3,4,4-nonafluorobutane and an organic solvent
US6048832A · kind A · utility
14Cited by
6References
32Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 25, 1998 |
| Grant date | Apr 11, 2000 |
| Priority date | — |
| Expiry date | Jun 25, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C19/075
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The invention relates to novel azeotrope-like compositions of 1-bromopropane, 4-methoxy-1,1,1,2,2,3,3,4,4-nonafluorobutane (HFE-7100) and at least one organic solvent selected from the group consisting of methanol, ethanol, 2-propanol, 2-methyl-2-propanol, tetrahydrofuran, nitromethane, and methylene chloride and more particularly to azeotrope-like compositions based on these compounds which are useful as solvents in refrigeration flushing, oxygen system cleaning and vapor degreasing applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.