发明授权
US4676917A Railway diesel crankcase lubricant 失效
铁路柴油曲轴箱润滑剂

Railway diesel crankcase lubricant
摘要:
A crankcase lubricating oil composition for railway diesel engines, containing a mineral lubricating oil, an overbased calcium alkylphenolate and an alkyaryl sulfonate oxidation and corrosion inhibiting amount of a reaction product of polyoxyisopropylene diamine, dibasic acid anhydride and polyalkylene polyamine.
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