| abstract |
A lubricant for refrigerators using a hydrofluorocarbon such as R134a, R32 or R125 as the refrigerant, and a refrigerant composition containing the same. The lubricant comprises a synthetic oil and a carbodiimide compound represented by the general formula R₁-N=C=N-R₂, wherein R₁ and R₂ represent each independently hydrogen or a hydrocarbon group which may contain nitrogen or oxygen. The refrigerant composition comprises the hydrofluorocarbon refrigerant and the lubricant in a specified ratio. |