Compositions which include 1,1,2,2- tetrafluoroethane and fluoro

Details Compositions which include 1,1,2,2- tetrafluoroethane and fluoro Compositions which include 1,1,2,2- tetrafluoroethane and fluoro

1997-04-23

1998-06-09

McGinty, Douglas J.

Compositions

Vaporization, or expansion, refrigeration or heat or energy...

521131, 521 98, 521910, 510177, 510408, 134 40, 134 42, 134 38, 62114, 623241, 264 53, 264DIG5, C09K 504, C11D 730, C08J 914, B29C 6720

Patent

active

057628181

ABSTRACT:
Compositions are disclosed which include 1,1,2,2-tetrafluoroethane and a propane, tris(trifluoromethyl)amine, trifluoromethylsulfur pentafluoride or fluoroethane. The term propane includes compounds of the formula C.sub.3 F.sub.a H.sub.8-a wherein 0.ltoreq.a.ltoreq.8 as well as cyclic compounds of the formula C.sub.3 F.sub.b H.sub.6-b wherein 0.ltoreq.b.ltoreq.6. These compositions are useful as refrigerants, cleaning agents, expansion agents for polyolefins and polyurethanes, aerosol propellants, 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.

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Kazachki et al., "Thermodynamic Evaluation of Predicted Fluorinated Ether, EThane, and Propane Azeotropes", 1992 International Refrigeration Conference--Energy Efficiency and New Refrigerants, vol. II, Jul. 1992, pp. 595-605.
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