| 摘要 |
FIELD: chemistry.SUBSTANCE: invention relates to refrigerating oil, which contains an ester obtained via esterification of only a mixture of a polyatomic alcohol and a fatty acid containing at least one C-Cfatty acid and at least one branched C-Cfatty acid, where the molar ratio of the at least one C-Cfatty acid to the at least one branched C-Cfatty acid in the mixture of fatty acids is between 15:85 and 90:10, the at least one C-Cfatty acid includes 2-methylpropanoic acid, and the total amount of the at least one C-Cfatty acid and the branched C-Cfatty acid in the mixture of fatty acids is at least 20 mol %. The present invention also relates to refrigerant compositions (versions).EFFECT: obtaining refrigerating oil, which enables to achieve high levels of compatibility of the refrigerant, lubricating capacity and low-temperature fluidity.9 cl, 36 ex, 10 tbl |
