Compositions – Vaporization – or expansion – refrigeration or heat or energy...
Patent
1997-05-13
1998-08-04
Skane, Christine
Compositions
Vaporization, or expansion, refrigeration or heat or energy...
252305, 252364, 264DIG5, 510408, 521 98, 521131, C09K 504
Patent
active
057888779
ABSTRACT:
Substantially constant boiling mixtures of difluoromethane and 1,1,1-trifluoroethane or perfluoroethane are useful as refrigerants, aerosol propellants, heat transfer media, gaseous dielectrics, fire extinguishing agents, and expansion agents for polymers.
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E. I. Du Pont de Nemours and Company
Skane Christine
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