| 摘要 |
PROBLEM TO BE SOLVED: To obtain a lubricant for a recording medium keeping excellent lubricity under various conditions in use, having continued lubrication effect for a long time, and giving excellent traveling property, abrasion resistance, durability, and the like. SOLUTION: For example, C18 H37 CH(CONHC6 H5 )CH2 COO-Rf-OCOCH2 CH(CONHC6 H5 )C18 H37 (wherein, Rf is a fluoropolyether group having an average molecular weight of 2,000) is used as the lubricant for the magnetic recording medium. |
