Azeotrope-like compositions of tetrafluoropropene and hydrofluorocarbons
CAFCFirst Claim
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1. An azeotrope-like composition consisting essentially of effective amounts of trans-1,3,3,3-tetrafluoropropene (transHFO-1234ze) and a compound selected from the group consisting of 1,1-difluoroethane (“
- HFC-152a”
), 1,1,1,2,3,3,3-heptafluoropropane (“
HFC-227ea”
), 1,1,1,2-tetrafluoroethane (“
HFC-134a”
), 1,1,1,2,2-pentafluoroethane (“
HFC-125”
) and combinations of two or more of these.
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Reexamination
Accused Products
Abstract
Provided are azeotrope-like compositions comprising tetrafluoropropene and hydrofluorocarbons and uses thereof, including use in refrigerant compositions, refrigeration systems, blowing agent compositions, and aerosol propellants.
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Citations
32 Claims
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1. An azeotrope-like composition consisting essentially of effective amounts of trans-1,3,3,3-tetrafluoropropene (transHFO-1234ze) and a compound selected from the group consisting of 1,1-difluoroethane (“
- HFC-152a”
), 1,1,1,2,3,3,3-heptafluoropropane (“
HFC-227ea”
), 1,1,1,2-tetrafluoroethane (“
HFC-134a”
), 1,1,1,2,2-pentafluoroethane (“
HFC-125”
) and combinations of two or more of these. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 30, 31, 32)
- HFC-152a”
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2. A composition comprising an azeotrope-like mixture consisting of transHFO-1234ze and a component selected from the group consisting of 1,1-difluoroethane (“
- HFC-152a”
), 1,1,1,2,3,3,3-heptafluoropropane (“
HFC-227ea”
), 1,1,1,2-tetrafluoroethane (“
HFC-134a”
), and 1,1,1,2,2-pentafluoroethane (“
HFC-125”
).
- HFC-152a”
-
15. An azeotrope-like composition comprising effective amounts of trans-1,3,3,3-tetrafluoropropene (transHFO-1234ze) and a compound selected from the group consisting of 1,1,1,2,3,3,3-heptafluoropropane (“
- HFC-227ea”
), 1,1,1,2,-tetrafluoroethane (“
HFC-134a”
), 1,1,1,2,2-pentafluoroethane (“
HFC-125”
) and combinations of two or more of these. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
- HFC-227ea”
Specification