HEAT TRANSFER COMPOSITION OF OXYGENATED LUBRICANT WITH HYDROFLUOROOLEFIN AND HYDROCHLOROFLUOROOLEFIN REFRIGERANTS
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United States of America Patent
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Issued Date -
Nov 22, 2012
app pub date -
Jan 25, 2011
filing date -
Jan 25, 2010
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Abstract
The present invention relates to heat transfer compositions comprising an oxygenaged lubricant comprising polyvinyl ether oil and a refrigerant comprising hydrofluoroolefins and/or hydrochlorofluoroolefins. The heat transfer compositions of the present invention have the benefit of exhibiting superior thermal stability and are useful in such applications as refrigeration, air conditioning, and heat transfer systems.
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