C - Chemistry – Metallurgy – 09 – K
Patent
C - Chemistry, Metallurgy
09
K
C09K 5/04 (2006.01) A62D 1/08 (2006.01) C07C 19/08 (2006.01) C08J 9/14 (2006.01) C09K 3/30 (2006.01) H01B 3/56 (2006.01)
Patent
CA 2138249
Azeotropic compositions of 5-45 weight percent pentafluoroethane and 55-95 weight percent 1,1,1-trifluoroethane boil at -16.9 °C and a pressure of about 51 psia. These compositions are useful as refrigerants, aerosol propellants, heat transfer media, gaseous dielectrics, fire extinguishing agents, expansion agents for polyolefins and polyurethanes and as power cycle working fluids .
Bivens Donald Bernard
Yokozeki Akimichi
Bennett Jones Llp
E. I. Du Pont de Nemours And Company
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