| 摘要 |
PROBLEM TO BE SOLVED: To provide a refrigerator oil compsn. which is suitable to be used with a chlorofluorocarbon substitute and can be used with a conventional refrigerant in a similar way to a refrigerator oil compsn. contg. a silicone-based foam stabilizer by compounding a base oil with an org. fluorine compd. or a fluorinated siloxane compd. SOLUTION: A base oil selected from among synthetic or natural lubricating oils. such as a mineral oil (paraffininc or naphthenic), a POE (polyol ester) oil, a PAG (polyalkylene glycol) oil, and a carbonate oil, is componded with 50-5,000ppm org. fluorine compd. which acts as a foam stabilizer and is a polymer having perfluoroalkyl and/or perfluoroalkylene groups and at least one kind of functional group selected from among ester. alcohol, epoxy, and ketone bonds in the molecule or is compounded with 20-5,000 ppm fluorinated siloxane compd. having fluoroalkyl and/or fluoroalkylene groups in the molecule. |
