A refrigerator oil composition for a fluoroalkane refrigerant comprises a base oil composed principally of at least one oxygen-containing compound and, based on the total weight of the composition, [I] 0.5-5.0 wt.% of a phosphate ester represented by the formula (A), and [II] (a) 0.1-5.0 wt.% of a halogenated phosphate ester represented by the formula (B) and/or (b) 0.01-2.0 wt.% of an acid phosphate ester represented by the formula (C), an amine salt thereof or a combination of both the acid phosphate ester and the amine salt.
wherein R¹, R² and R³ represent a C₁₋₁₈ hydrocarbon or oxygen-containing hydrocarbon group; R⁴, R⁵ and R⁶ represent a C₁₋₁₈ hydrocarbon or oxygen-containing hydrocarbon group or a group similar to the C₁₋₁₈ hydrocarbon or oxygen-containing hydrocarbon groups except for the substitution of at least one of the hydrogen atoms by a corresponding number of halogen atom or atoms with the proviso that the total number of halogen atoms contained in R⁴, R⁵ and R⁶ is 1-9; and R⁷ and R⁸ represent a hydrogen atom, a C₁₋₁₈ hydrocarbon or oxygen-containing hydrocarbon group.
一种用于氟烷制冷剂的冷冻机油组合物,包括主要由至少一种含氧化合物组成的基础油,以及以组合物总重量为基准,[I] 0.5-5.0重量%的由式(A)代表的
磷酸酯,和[II] (a) 0.1-5.0 重量百分比的式 (B) 所代表的卤代
磷酸酯和/或 (b) 0.01-2.0 重量百分比的式 (C) 所代表的酸性
磷酸酯、其胺盐或酸性
磷酸酯和胺盐的组合。
其中 R¹、R² 和 R³ 代表 C₁₋₁₈烃基或含氧烃基;R⁴,代表 C₁₋₁₈烃基或含氧烃基,或代表与 C₁₋₁₈烃基或含氧烃基相似的基团。含烃基团,但其中至少一个氢原子被相应数目的一个或多个卤原子取代,但 R⁴、R⁵ 和 R⁶ 中所含卤素原子的总数为 1-9;R⁷ 和 R⁸ 代表氢原子、C₁₋₁₈ 烃或含氧烃基。