| 摘要 |
PROBLEM TO BE SOLVED: To provide a refrigerator oil composition which is favorably used for a compression type refrigerator using, as the refrigerant, a hydrofluorocarbon, a natural refrigerant such as hydrocarbon, carbon dioxide and ammonia, a mixed refrigerant of fluorinated iodided methyl and propene, further an unsaturated fluorinated hydrocarbon, fluorinated ether, fluorinated alcohol, fluorinated ketone or a mixture of these and which has a low coefficient of friction and excels in energy saving. SOLUTION: The refrigerator oil composition comprises a synthetic base oil and a partial hydrocarbyl ether of an aliphatic polyhydric alcohol condensation product, wherein the aliphatic polyhydric alcohol condensation product is a condensation product of 4-20 molecules of a hindered glycol and/or an aliphatic polyhydric alcohol having 3-6 hydroxyl groups. COPYRIGHT: (C)2008,JPO&INPIT |
