| 摘要 |
PURPOSE:To obtain the title oil excellent in oxidation stability, to be used in the refrigerating compressors for air conditioners, electric refrigerators, etc., by incorporating e.g. a naphthene mineral oil with, as antioxidants, a zinc dithiophosphate and 2, 6-di-t-butylphenol. CONSTITUTION:The objective refrigerating machine oil can be obtained by incorporating (A) a base oil such as naphthene mineral oil or alkylbenzene synthetic oil with (B) as radical reaction terminator, >=0.05wt.% of a zinc dithiophosphate of the formula (R<1> and R<2> are each alkyl or allyl) and (C) as peroxide decomposer, >=0.05wt.% of 2,6-di-t-butylphenol. |
