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Azeotrope-like compositions of tetrafluoropropene and hydrofluorocarbons

CAFC
  • US 8,148,317 B2
  • Filed: 07/28/2009
  • Issued: 04/03/2012
  • Est. Priority Date: 04/29/2004
  • Status: Active Grant
First Claim
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1. An azeotrope-like composition comprising effective amounts of trans-1,3,3,3-tetrafluoropropene (transHFO-1234ze) and 1,1,1,2-tetrafluoroethane (HFC-134a).

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