Compositions – Fire-extinguishing
Reexamination Certificate
2011-07-05
2011-07-05
Douyon, Lorna M (Department: 1761)
Compositions
Fire-extinguishing
C252S067000, C252S071000, C252S182120, C252S364000, C252S570000, C510S408000, C510S415000, C570S123000
Reexamination Certificate
active
07972525
ABSTRACT:
Azeotropic or azeotrope-like compositions are disclosed. The azeotropic or azeotrope-like compositions are mixtures of E-1,1,1,4,4,4-hexafluoro-2-butene with methyl formate, n-pentane, 2-methylbutane, trans-1,2-dichloroethylene, 1,1,1,3,3-pentafluoropropane, n-butane or isobutane. 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.
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Diggs Tanisha
Douyon Lorna M
E. I. Du Pont de Nemours and Company
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