LUBRICANT COMPOSITION, LUBRICATING FILM FOR METAL SURFACE, FRICTION REDUCER FOR METAL SURFACE, MAGNETIC RECORDING MEDIUM, AND NOVEL POLYETHER COMPOUND

摘要

PPROBLEM TO BE SOLVED: To provide a lubricant composition which can demonstrate a lubricating effect which is excellent in various applications such as a magnetic recording medium or the like. PSOLUTION: The lubricant composition includes a polyether compound which has an alkylene oxide residue and a carbonic ester residue. The alkylene oxide residue contains at least one selected from the group consisting of an ethylene oxide residue, a propylene oxide residue, a polyethylene oxide residue, and a polypropylene oxide residue. The polyether compound is a compound shown by general formula (1) or the like. In the formula, RSP11/SPdenotes a 1-12C straight chain or branched alkyl group, and n11 denotes an integer of two or more and 100 or less. PCOPYRIGHT: (C)2011,JPO&INPIT