Heat transfer compositions
First Claim
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1. A heat transfer composition comprising:
- from about 5% to about 40% by weight of R-1234ze(E);
from about 20% to about 35% by weight R-32;
from about 15% to about 30% by weight R-125; and
from about 12% to about 50% by weight R-134a,wherein the composition has a volumetric refrigeration capacity within about 10% of R-407C.
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Abstract
The invention provides a heat transfer composition comprising:
- (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-134a), and mixtures thereof; and optionally
- (iv) a fourth component selected from fluoroethane (R-161), 1,1-difluoroethane (R-152a) and mixtures thereof.
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52 Claims
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1. A heat transfer composition comprising:
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from about 5% to about 40% by weight of R-1234ze(E); from about 20% to about 35% by weight R-32; from about 15% to about 30% by weight R-125; and from about 12% to about 50% by weight R-134a, wherein the composition has a volumetric refrigeration capacity within about 10% of R-407C. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52)
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Specification