| 摘要 |
<p>A composition for use in a compression type heat transfer device comprising as a working fluid hydrofluoroalkane or hydrochlorofluoroalkane and as a lubricant a reaction product or ester comprising the residues of a mono- and a difunctional alcohol, and at least one difunctional acid. The lubricant is at least partially soluble in the working fluid and has a good viscosity index, preferably above 130.</p> |
