| 摘要 |
PURPOSE:To prepare a lubricating oil compsn. which is excellent in the abrasion resistance, seizing resistance, corrosion resistance, etc., and suitable for a bearing oil, a gear oil, etc., by incorporating a particular org. phosphine compd. and an org. molybdenum compd. in a base oil of lubricating oil. CONSTITUTION:A base oil of a lubricating oil (A) (e.g., hydrogenated mineral oil) is mixed with at least one org. phosphine compd. (B) selected from those of the formulae R<1>R<2>R<3>P, R1R2PPR<3>R<4>, R<1>R<2>P(CH2)nPR<3>R<4> (wherein R<1>, R<2>, R<3> and R<4> are each a 1-18C alkyl, 6-25C aryl, or a cycloalkyl; and n is 1-4) (e.g., trimethylphosphine or tetramethyldiphosphine) and at least one org. molybdenum compd. (C) selected from sulfoxymolybdenum alkyl phosphorodithioate and sulfoxymolybdenum alkyldithiocarbamate to prepare a lubricating oil compsn. |
