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US 4,045,365 AGranted
Azeotrope-like compositions of trichloro-trifluoroethane, acetonitrile and acetone
AssigneeAllied Chemical Corporation
InventorFrancis J. Figiel
Life of this patent
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Abstract
Azeotrope-like compositions consisting essentially of 1,1,2-trichloro-1,2,2-trifluoroethane, acetonitrile and acetone have utility as degreasing agents and as solvents to remove rosin fluxes from printed circuit boards.
Claims4
Azeotrope-like compositions comprising about 90.62 weight percent 1,1,2-trichloro-1,2,2-trifluoroethane, about 1.91 weight percent acetonitrile and about 7.47 weight percent acetone.
Dependencies are inferred from the claim text.