HEAT TRANSFER COMPOSITIONS
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United States of America Patent
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Issued Date -
May 16, 2013
app pub date -
May 20, 2011
filing date -
May 20, 2010
priority date (Note) -
Abandoned
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Abstract
The invention provides a heat transfer composition comprising (i) a first component selected from trans-1,3,3,3-tetrafluoropropene (R-1234ze(E)), cis-1,3,3,3-tetrafluoropropene (R-1234ze(Z)) and mixtures thereof; (ii) carbon dioxide (R-744); and (iii) a third component selected from difluoromethane (R-32) 1,1,1,2-tetrafluoroethane (R-134a) and mixtures thereof.
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