HEAT TRANSFER COMPOSITIONS
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United States of America Patent
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Issued Date -
Dec 28, 2023
app pub date -
Aug 28, 2023
filing date -
Aug 28, 2023
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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-tetraflueroethane (R-34a), 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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