Azeotropic or azeotrope-like compositions including 1,1,1,2,3,4,4,5,5,5-decafluoropentane
AssigneeE. I. Du Pont de Nemours and Company
InventorGlenn S. Shealy
Life of this patent
Estimating the term…
Abstract
Compositions of 1,1,1,2,3,4,4,5,5,5-decafluoropentane, bis(fluoromethyl) ether, 2,2,4,4-tetrafluorooxetane, 2,2,3,3-tetrafluorooxetane, 1,1,1,2-tetrafluoro-2-(fluoromethoxy)ethane, 1-(difluoromethoxy)-1,2,2-trifluoroethane, 1-(difluoromethoxy)-1,1,2-trifluoroethane, acetone, cyclopentane, ethyl acetate, ethyl formate, methyl tert-butyl ether, methyl acetate, methyl formate, propylene oxide, 2,2-dimethylbutane, n-pentane or n-propanol are useful as cleaning agents, expansion agents for polyolefins and polyurethanes, aerosol propellants, refrigerants, heat transfer media, gaseous dielectrics, fire extinguishing agents, power cycle working fluids, polymerization media, particulate removal fluids, carrier fluids, buffing abrasive agents, and displacement drying agents.
Claims5
An azeotropic or azeotrope-like composition consisting essentially of about 1-99 weight percent 1,1,1,2,3,4,4,5,5,5-decafluoropentane and about 99-1 weight percent methyl tert-butyl ether wherein at about 25 C, the vapor pressure of the composition changes by less than 10% after 50% of the composition has evaporated.
Dependencies are inferred from the claim text.