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US 8,999,190 B2Granted
Heat transfer compositions
AssigneeMexichem Amanco Holding S.A. de C.V.
InventorRobert E Low
Life of this patent
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Abstract
The invention provides a heat transfer composition comprising R-1234ze (E), R-32 and 1,1,1,2-tetrafluoroethane (R-134a).
Claims51
A heat transfer composition comprising 30-90% by weight trans-1,3,3,3-tetrafluoropropene (R-1234ze(E)), R-32 and 10-50% by weight 1,1,1,2-tetrafluoroethane (R-134a), wherein the composition comprises substantially no R-1243zf.
Dependencies are inferred from the claim text.