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US 4,873,021 AGranted
Azeotrope or azeotrope-like composition of trichlorotrifluoroethane and dichlorodifluoroethane
AssigneeE. I. Du Pont de Nemours and Company
InventorsRobert A. Gorski, Bernhardt J. Eiseman, Jr., Donovan E. Kvalnes
Life of this patent
Estimating the term…
Abstract
An azeotrope or azeotrope-like composition of 1,1,2-trichloro-1,2,2-trifluoroethane (FC-113) and 1,2-dichloro-1,1-difluoroethane (FC-132b), the azeotrope being useful in solvent cleaning applications.
Claims2
An azeotrope comprising an admixture of about 50.5 wt. percent 1,1,2-trichloro-1,2,2-trifluoroethane and about 49.5 wt. percent 1,2-dichloro-1,1-difluoroethane.
Dependencies are inferred from the claim text.