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US 8,524,110 B2Granted
Compositions comprising a fluoroolefin
AssigneeE. I. Du Pont de Nemours and Company
InventorsBarbara Haviland Minor, Velliyur Nott Mallikarjuna Rao
Life of this patent
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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 a fluoroolefin and at least one other component. The compositions of the present invention are useful in processes for producing cooling or heat, as heat transfer fluids, foam blowing agents, aerosol propellants, and fire suppression and fire extinguishing agents.
Claims9
A composition consisting of:
- a refrigerant component
- wherein said composition is an azeotropic or near-azeotropic composition consisting of about 91.0 weight percent HFC-1234yf and about 9.0 weight percent HFC-152a at a pressure of 17.9 psi (123 kPa) and a temperature of −25° C.
Dependencies are inferred from the claim text.