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US 2012/0126187 A1Published application
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: (i) 1,3,3,3-tetrafluoroprop-1-ene (R1234ze, CF3CH═CHF) (ii) a second component comprising R-1243zf, (3,3,3 trifluoropropene) or a difluoropropene (R-1252) selected from R-1252zf, R-1252yf, R-1252ye R-1252ze and R-1252zc, and mixtures thereof; and (iii) a third component selected from R32 (difluoromethane), R744 (CO2), R41 (fluoromethane), R1270 (propene), R290 (propane), R161 (fluoroethane) and mixtures thereof.
Claims61
A heat transfer composition comprising:
- (i) E-1,3,3,3-tetrafluoroprop-1-ene (R1234ze(E))
- (ii) a second component comprising R-1243zf, (3,3,3 trifluoropropene) or a difluoropropene (R-1252) selected from R-1252zf, R-1252yf, R-1252ye, R-1252ze and R-1252zc, and mixtures thereof;
- and
- (iii) a third component selected from R32 (difluoromethane), R744 (CO2), R41 (fluoromethane), R1270 (propene), 8290 (propane), R161 (fluoroethane) and mixtures thereof.
1 more element
(canceled)
Dependencies are inferred from the claim text.