This invention relates to compositions that include at least one fluoroether
and at least one hydrofluorocarbon. Included in this invention are compositions
of a cyclic or acyclic hydrofluoroether of the formula CaFbH2a+2-bOc
wherein a=2 or 3 and 3b8 and c=1 or 2 and a hydrofluorocarbon of
the formula CnFmH2n+2-m wherein 1n4
and 1m8. Such compositions may be used 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.