Compositions containing trans-1,2-dichloroethylene and a hydrofluoroether, and methods of using the same
AssigneeShellef Holdings Inc.
InventorsDov SHELLEF, Edo SHELLEF
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Abstract
Disclosed herein are solvent compositions and methods of using the solvent compositions. The solvent composition includes at least trans-1,2-dichloroethylene (t-DCE) and 1,1,2,2-tetrafluoroethyl-2,2,3,3-tetrafluoropropyl ether (TFE-TFPE). The solvent composition may also include an oxygenated solvent, such as an alcohol or fluorinated ether. A method of cleaning the surface of an article includes contacting the surface with the solvent composition to dissolve, disperse, or displace a contaminant on the surface, and removing the solvent composition containing the contaminant from the surface.
Claims20
A solvent composition comprising:
- trans-1,2-dichloroethylene (t-DCE) in an amount in a range of from 70 to 99.9 wt. %;
- and
- 1,1,2,2-tetrafluoroethyl-2,2,3,3-tetrafluoropropyl ether (TFE-TFPE) in an amount in a range of from 0.1 to 30 wt. %.
A solvent composition comprising:
- 65 to 98 wt. % of trans-1,2-dichloroethylene (t-DCE);
- 0.1 to 30 wt. % of 1,1,2,2-tetrafluoroethyl-2,2,3,3-tetrafluoropropyl ether (TFE-TFPE);
- and
- 0.1 to 15 wt. % of an oxygenated solvent selected from the group consisting of at least one of methanol, ethanol, isopropanol, t-butanol, 1-propanol, 2-butanol, methylperfluoroheptene ether (MPHE), and 3-methoxyperfluoro(2-methylpentane).
Dependencies are inferred from the claim text.