PERFLUOROPOLYALKYL ETHER-BASED COMPOUND, LUBRICANT COMPRISING THE COMPOUND AND RECORDING MEDIUM USING THE LUBRICANT

摘要

PROBLEM TO BE SOLVED: To provide a lubricant which holds excellent lubricity under various conditions for use, maintains the lubrication effect over a long time, can give excellent running properties, abrasion resistance, durability and the like, and is used for recording media. SOLUTION: For example, a C18 H37 -CH(CH2 COOH)COO-Rf-OCOCH(CH2 COOH)-C18 H37 (Rf is a fluoropolyether group having an average mol.wt. of 2,000) is used as a lubricant for magnetic recording media.