Methods of replacing refrigerant
First Claim
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1. A method of replacing an existing refrigerant contained in a refrigerant system comprising removing at least a portion of said existing refrigerant from said system and replacing at least a portion of said existing refrigerant by introducing into said system a refrigerant composition comprising an azeotrope-like composition comprising effective amounts of HFO-1234yf and HFO-1225yez.
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Abstract
Provided are azeotrope-like compositions comprising tetrafluoropropene and pentafluoropropene and uses thereof, including use in refrigerant compositions, blowing agent compositions, foamable compositions, foams, sterilant compositions, sprayable compositions, and systems and methods using same.
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20 Claims
- 1. A method of replacing an existing refrigerant contained in a refrigerant system comprising removing at least a portion of said existing refrigerant from said system and replacing at least a portion of said existing refrigerant by introducing into said system a refrigerant composition comprising an azeotrope-like composition comprising effective amounts of HFO-1234yf and HFO-1225yez.
Specification