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US 4,062,794 AGranted
Azeotrope-like compositions of trichlorotrifluoroethane, methanol, ethanol, isopropanol and nitromethane
AssigneeAllied Chemical Corporation
InventorFrancis J. Figiel
Life of this patent
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Abstract
Solvent cleaning composition composed of azeotrope-like mixtures of 1,1,2-trichloro-1,2,2-trifluoroethane, methanol, ethanol, isopropanol and nitromethane.
Claims4
Azeotrope-like compositions comprising about 94.0 weight percent 1,1,2-trichloro-1,2,2-trifluoroethane, about 3.1 weight percent methanol, about 1.3 weight percent ethanol, about 0.4 weight percent isopropanol and about 1.2 weight percent nitromethane.
Dependencies are inferred from the claim text.