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US 11,760,911 B2Granted
Heat transfer compositions
AssigneeMexichem Amanco Holding S.A. de C.V.
InventorRobert E. Low
Life of this patent
Estimating the term…
Abstract
A heat transfer composition includes: (i) trans-1,3,3,3-tetrafluoropropene (R-1234ze(E)); (ii) a second component selected from difluoromethane (R-32), propene (R-1270), propane (R290) and mixtures thereof; (iii) a third component selected from pentafluoroethane (R-125), 1,1,1,2-tetrafluoroethane (R-34a), and mixtures thereof; and optionally (iv) a fourth component selected from fluoroethane (R-161), 1,1-difluoroethane (R-152a) and mixtures thereof.
Claims19
A heat transfer composition comprising:
- (i) from about 5% to about 65% by weight trans-1,3,3,3-tetrafluoropropene (R-1234ze(E));
- (ii) from about 15% to about 50% by weight of difluoromethane (R-32);
- (iii) from about 10% to about 25% by weight pentafluoroethane (R-125), and
- (iv) from about 10% to about 40% by weight 1,1,1,2-tetrafluoroethane (R-134a);
- and,
- (v) optionally, fluoroethane (R-161), 1,1-difluoroethane (R-152a) and mixtures thereof.
3 more elements
Dependencies are inferred from the claim text.