Compositions – Vaporization – or expansion – refrigeration or heat or energy...
Patent
1995-06-07
1997-04-01
McGinty, Douglas J.
Compositions
Vaporization, or expansion, refrigeration or heat or energy...
62114, 623241, 510177, 510408, 252305, 252364, C09K 504, C11D 730, C11D 750
Patent
active
056162758
ABSTRACT:
This invention relates to compositions of a hexafluoropropane and a hydrofluorocarbon, with the hydrofluorocarbon being hexafluoropropane, pentafluoropropane, tetrafluoropropane, trifluoropropane, difluoropropane, fluoropropane, or (CF.sub.3).sub.2 CHCH.sub.3. The compositions, which may be azeotropic or azeotrope-like, may be used as refrigerants, 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 or displacement drying agents.
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Chisolm Tuneen E. C.
Minor Barbara H.
E. I. Du Pont de Nemours and Company
McGinty Douglas J.
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