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US 4,157,976 AGranted
Constant boiling mixtures of 1,1,1,2-tetrafluorochloroethane and chlorofluoromethane
AssigneeAllied Chemical Corporation
InventorsRobert L. Ostrozynski, Sabatino R. Orfeo, Philip E. Jones, Earl A. E. Lund
Life of this patent
Estimating the term…
Abstract
Constant boiling mixtures of 1,1,1,2-tetrafluorochloroethane and chlorofluoromethane are useful as refrigerants, heat transfer media, gaseous dielectrics, expansion agents, aerosol propellants, working fluids in a power cycle and solvents, and are potentially environmentally safe.
Claims3
Constant boiling mixtures consisting essentially of about 38.5-99.5 weight percent of 1,1,1,2-tetrafluorochloroethane and about 0.5-61.5 weight percent of chlorofluoromethane.
Dependencies are inferred from the claim text.