Trans-1, 2-dichloroethylene and hydrofluorocarbon or alkoxy perfluoroalkane compositions having elevated flash points
US7524806B2 · kind B2 · utility
1Cited by
21References
3Claims
0Family size
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Key dates
| Filing date | Jul 7, 2005 |
| Grant date | Apr 28, 2009 |
| Priority date | — |
| Expiry date | Mar 28, 2027 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2205/126
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A tran-1,2-dichloroethylene blend which comprises a combination of a major amount of tran-1,2-dichloroethylene and a minor amount of a hydrofluorocarbon or an alkoxy perfluoroalkane having an elevated flash point is disclosed. The combination exhibits a flash point significantly higher than trans-1,2-dichloroethylene alone while containing only a minor amount of the component exhibiting the high Global Warming Potential. The preferred hydrofluorocarbon is 1,1,1,2,2,3,4,5,5,5-decafluoropentane or 3,3,4,4,5,5,6,6,6-nonafluoro-1-hexene and the preferred alkoxy perfluoroalkane is 1-(methoxy)nonafluorobutane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.