| 摘要 |
PROBLEM TO BE SOLVED: To obtain a lubricant composition using a highly purified base oil, having excellent rust preventing property, reduced sludge formation and energy-saving, for general industrial lubricant, especially for machine oil, turbine oil, compressor oil, hydraulic working fluid, gear oil, oil for friction surface, bearing oil and calibration oil. SOLUTION: The lubricant composition with excellent rust preventing property and reduced sludge formation, suitable for industrial lubricant such as hydraulic working fluid, etc., is formed by adding aspartic acid derivative and epoxylated ester compound as additives to a base oil composed of highly purified base oil or synthetic oil containing≤300 ppm of sulfur content. A lubricant composition with more reduced sludge formation and reduced friction coefficient, excellent in energy saving is formed by further adding an aliphatic amine compound as the additives. COPYRIGHT: (C)2008,JPO&INPIT |
