Nonafluoromethoxybutane compositions
AssigneeE. I. Du Pont de Nemours and Company
InventorsAbid Nazarali Merchant, Barbara Haviland Minor, Shoeb Akberali Moiyadi
Life of this patent
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Abstract
Compositions of nonafluoromethoxybutane and cyclopentane, nonafluoromethoxybutane and cyclohexane; nonafluoromethoxybutane, cyclopentane and acetone, nonafluoromethoxybutane, cyclohexane and acetone, nonafluoromethoxybutane, trans-1,2-dichloroethylene and cyclopentane; and nonafluoromethoxybutane, trans-1,2-dichloroethylene, cyclopentane and methanol are described. These compositions are useful as cleaning agents, displacement drying agents, refrigerants, heat transfer media, expansion agents for polyolefins and polyurethanes, aerosol propellants, gaseous dielectrics, fire extinguishing agents, power cycle working fluids, polymerization media, particulate removal fluids, carrier fluids, and buffing abrasive agents.
Claims10
An azeotropic or azeotrope-like composition comprising:
- 29-83 weight percent nonafluoromethoxybutane and 17-71 weight percent cyclopentane;
- 1-82 weight percent nonafluoromethoxybutane, 17-85 weight percent cyclopentane and 1-59 acetone;
- 1-98 weight percent nonafluoromethoxybutane, 1-60 weight percent cyclohexane and 1-98 weight percent acetone;
- 40-75 weight percent nonafluoromethoxybutane, 1-59 weight percent trans-1,2-dichloroethylene and 1-59 cyclopentane;
- or 40-70 weight percent nonafluoromethoxybutane, 15-50 weight percent trans-1,2-dichloroethylene, 1-25 weight percent cyclopentane and 1-10 weight percent methanol.
Dependencies are inferred from the claim text.