SOLID LUBRICANT MAGNETOATTRACTIVE ONTO SLIDING SURFACE, AND LUBRICATING OIL COMPOSITION CONTAINING

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PROBLEM TO BE SOLVED : To provide a solid lubricant high in storage stability in a lubricating oil, and excellent in the friction-reducing effects of various mechanical parts such as of automobiles. SOLUTION : The solid lubricant, which is magnetoattractive onto a sliding surface, contains at least one ferromagnetic powder selected from the group consisting of powders of iron oxide-based ferromagnetic substances, cobalt oxide-based ferromagnetic substances, chromium oxide-based ferromagnetic substances and rare earth-based ferromagnetic substances. COPYRIGHT : (C)2010, JPO&INPIT