| 摘要 |
<p>Provided is a hydraulic fluid composition for a refrigerator which comprises, as a base oil, a combination of a polyester derivative or a polyvinyl ether derivative and a polycarbonate type oxygen-containing compound, a polyoxyalkylene glycol derivative, or a combination of a polyester derivative or a polyvinyl ether derivative and a polyoxyalkylene glycol derivative, and which exhibits excellent compatibility with a solvent having a structure having one carbon atom and being free of chlorine, in particular difluoromethane, and is excellent in abrasion resistance, lubricating characteristics, stability and the like.</p> |
