| 摘要 |
<p>A refrigerating machine oil composition which comprises an alicyclic dicarboxylic ester compound having an alicyclic ring and two ester groups which are represented by the following general formula (1): -COOR1 (1) (wherein R1 represents C¿1-18? alkyl) and are bonded respectively to carbon atoms adjacent to each other on the ring, wherein the ester compound is one obtained from, as alcohol ingredients, (a) a C1-5 aliphatic alcohol and (b) a C6-18 aliphatic alcohol.</p> |
