HEAT TRANSFER COMPOSITION OF OXYGENATED LUBRICANT WITH HYDROFLUOROOLEFIN AND HYDROCHLOROFLUOROOLEFIN REFIGERANTS

摘要

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.

主权项

1. A heat transfer composition comprising a polyvinyl ether oil and a refrigerant selected from the group consisting of the hydrofluoroolefins 1,3,3,3-tetrafluoropropene (HFO-1234ze) and 3,3,3-trifluoropropene (HFO-1243zf) wherein said heat transfer composition exhibits a Hazen number of 6.2 or less and a total acid number of 1.1 or less when testing in accordance with ASHRAE 97-2007.