Heat transfer compositions
First Claim
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1. A heat transfer composition comprising trans-1,3,3,3-tetrafluoropropene (R-12342e(E)), difluoromethane (R-32) and 1,1-difluoroethane (R-152a), wherein the composition has a fluorine ratio (F/(F+H)) of from about 0.42 to about 0.65 wherein the composition comprises substantially no pentafluoropropene (R-1225).
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Abstract
A heat transfer composition comprising trans-1,3,3,3-tetrafluoropropene (R-1234ze(E)), difluoromethane (R-32) and 1,1-difluoroethane (R-152a).
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45 Claims
- 1. A heat transfer composition comprising trans-1,3,3,3-tetrafluoropropene (R-12342e(E)), difluoromethane (R-32) and 1,1-difluoroethane (R-152a), wherein the composition has a fluorine ratio (F/(F+H)) of from about 0.42 to about 0.65 wherein the composition comprises substantially no pentafluoropropene (R-1225).
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