Lubricant oil composition comprising a fluorine-containing aromatic compound and an alkyl- or alkyl derivative- substituted aromatic compound, and a refrigerant composition containing the same
申请人:Asahi Kasei Kogyo Kabushiki Kaisha
公开号:EP0638629A2
公开(公告)日:1995-02-15
Disclosed is a lubricant oil composition comprising :
(A) a fluorine-containing aromatic compound, and
(B) an alkyl- or alkyl derivative-substituted aromatic compound having a kinetic viscosity of from 0.1 to 500 cSt as measured at 40 °C, wherein :
the compound (A) is represented by the formula :
wherein X represents an oxygen or a sulfur atom ; n is an integer of from 1 to 4 ; R represents an n-valent, unsubstituted or substituted aromatic group having from 6 to 60 carbon atoms ; and Rf represents an unsubstituted or partially substituted fluorocarbon group having from 1 to 25 carbon atoms; and
the compound (B) comprises at least one substituted aromatic nucleus, wherein a substituent is an unsubstituted or substituted alkyl group having from 1 to 30 carbon atoms, or a derivative thereof. The lubricant oil composition having a kinetic viscosity of from 2 to 500 cSt as measured at 40 °C. The lubricant oil composition exhibits not only excellent miscibility with hydrofluorocarbon refrigerants and hydrofluoroether refrigerants over a wide temperature range, but also satisfy all requirements of properties for use thereof as a lubricant in refrigeration equipment, that is, low temperature fluidity, low moisture absorption properties, high electrical insulation, prolonged durability, and excellent lubricating properties.
公开了一种润滑油组合物,其中包括:
(A) 含氟芳香族化合物,和
(B) 烷基或烷基衍生物取代的芳香族化合物,其在 40 °C 时的动力学粘度为 0.1 至 500 cSt,其中:
化合物(A)由式:
其中 X 代表氧原子或硫原子;n 是 1 至 4 的整数;R 代表具有 6 至 60 个碳原子的 n 价、未取代或取代的芳香族基团;Rf 代表具有 1 至 25 个碳原子的未取代或部分取代的碳氟化合物基团;以及
化合物 (B) 包括至少一个取代的芳香族核,其中一个取代基是具有 1 至 30 个碳原子的未取代或取代的烷基或其衍生物。润滑油组合物在 40 °C 时的动力学粘度为 2 至 500 cSt。该润滑油组合物不仅在较宽的温度范围内与氢氟碳制冷剂和氢氟醚制冷剂具有极佳的相溶性,而且还满足将其用作制冷设备润滑剂的所有性能要求,即低温流动性、低吸湿性、高电绝缘性、持久耐用性和优异的润滑性。