| 摘要 |
PURPOSE:To obtain a lublicating composition excellent in frictional and wear characteristics by incorporating a specified molybdenum compound, acidic phosphoric ester (amine salt) and sulfurized compound each in a specified amount into a base oil or base grease. CONSTITUTION:This composition is obtained by mixing 100 pts.wt. base oil or base grease with 0.01-10 pts.wt. oil-soluble molybdenum compound obtained by reacting at least one hexavalent molybdenum compound selected from MoO3, H2MoO4 and an alkali salt (including an ammonium salt) thereof with an amino compound of formula I (wherein R1 and R2 are each H or a 1-30C hydrocarbon group except for the case where all of them are H at the same time, provided that the total of the number of carbon atoms thereof is 4 to 60), 0.1-10 pts.wt. acidic phosphoric ester (amine salt) consisting of 100-20mol% acidic phosphoric ester of formula II (wherein R3 and R4 are each II or a 4-20C hydrocarbon group except for the case where all of them are H at the same time) and 0-80mol% amino compound of formula III (wherein R5 and R6 are each H or a 4-30C hydrocarbon group except for the case where all of them are H at the same time), and 0.1-10 pts.wt. sulfur compound (e.g. a sulfurized olefin). |
