HEAT TRANSFER COMPOSITIONS
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United States of America Patent
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Issued Date -
Feb 7, 2013
app pub date -
Feb 14, 2011
filing date -
Feb 16, 2010
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The invention provides a heat transfer composition consisting essentially of from about 82 to about 88% by weight of trans-1,3,3,3-tetrafluoropropene (R-1234ze(E)) and from about 12 to about 18% by weight of 1,1-difluoroethane (R-152a). The invention also provides a heat transfer composition comprising from about 5 to about 85% by weight R-1234ze(E), from about 2 to about 20% by weight R-152a, and from about 5 to about 60 by weight 1,1,1,2-tetrafluoroethane (R-134a).
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