Azeotropic and azeotrope-like compositions of Z-1,1,1,4,4,4-hexafluoro-2-butene
AssigneeE. I. Du Pont de Nemours and Company
InventorMark L. Robin
Life of this patent
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AssigneeE. I. Du Pont de Nemours and Company
InventorMark L. Robin
Estimating the term…
Azeotropic or azeotrope-like compositions are disclosed. The azeotropic or azeotrope-like compositions are mixtures of Z-1,1,1,4,4,4-hexafluoro-2-butene with methyl formate, pentane, 2-methylbutane, 1,1,1,3,3-pentafluorobutane, trans-1,2-dichloroethylene, 1,1,1,3,3-pentafluoropropane, dimethoxymethane, or cyclopentane. Also disclosed is a process of preparing a thermoplastic or thermoset foam by using such azeotropic or azeotrope-like compositions as blowing agents. Also disclosed is a process of producing refrigeration by using such azeotropic or azeotrope-like compositions. Also disclosed is a process of using such azeotropic or azeotrope-like compositions as solvents. Also disclosed is a process of producing an aerosol product by using such azeotropic or azeotrope-like compositions. Also disclosed is a process of using such azeotropic or azeotrope-like compositions as heat transfer media. Also disclosed is a process of extinguishing or suppressing a fire by using such azeotropic or azeotrope-like compositions. Also disclosed is a process of using such azeotropic or azeotrope-like compositions as dielectrics.
A composition consisting essentially of:
A composition consisting essentially of:
An azeotrope composition consisting essentially of about 48.2 mole percent to about 58.7 mole percent Z-1,1,1,4,4,4-hexafluoro-2-butene and from about 51.8 mole percent to about 41.3 mole percent pentane, which has boiling point temperature of from about −20° C. to about 120° C. at a pressure of from about 2.2 psia to about 182 psia.
An azeotrope composition consisting essentially of about 37.1 mole percent to about 48.6 mole percent Z-1,1,1,4,4,4-hexafluoro-2-butene and from about 62.9 mole percent to about 51.4 mole percent 2-methylbutane, which has boiling point temperature of from about −20° C. to about 120° C. at a pressure of from about 2.7 psia to about 199 psia.
Dependencies are inferred from the claim text.