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Azeotrope-like compositions of tetrafluoropropene and hydrofluorocarbons

  • US 20050247905A1
  • Filed: 04/29/2005
  • Published: 11/10/2005
  • 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-pentafluoropropane (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,-tetraafluoethane (“

    HFC-134a”

    ), 1,1,1,2,2-pentafluoroethane (“

    HFC-125”

    ) and combinations of two or more of these.

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