Compositions comprising tetrafluoropropene and difluoromethane and uses thereof
AssigneeE.I. du Pont de Nemours and Company
InventorsThomas Joseph Leck, Barbara Haviland Minor
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Abstract
The present invention relates to compositions for use in refrigeration, air-conditioning and heat pump systems wherein the composition comprises tetrafluoropropene and difluoromethane. The compositions of the present invention are useful in processes for producing cooling or heat, as heat transfer fluids, foam blowing agents, aerosol propellants, fire suppression, fire extinguishing agents, as power cycle working fluids and in methods for replacing HFC-134a, R410A, \R404A, or R507.
Claims16
A composition comprising about 1 weight percent to about 80 weight percent 2,3,3,3-tetrafluoropropene and about 99 weight percent to about 20 weight percent difluoromethane.
Dependencies are inferred from the claim text.