MIXTURE OF LOW PROFILE LUBRICANT AND COMPOUND HAVING CYCLOPHOSPHAZENE RING

摘要

PPROBLEM TO BE SOLVED: To improve in a protective layer and lubricating layer on a magnetic disk to minimize friction noise and damage caused by contact between a head and the magnetic disk. PSOLUTION: A composition includes a mixture of a low profile lubricant and a compound including one or more cyclophosphazene rings. The low profile lubricant includes a perfluoropolyether backbone, at least one functional group on each end of the backbone, and at least one functional group located in a region of the backbone between the ends. Also a device includes the magnetic disk and the composition on the magnetic disk. PCOPYRIGHT: (C)2010,JPO&INPIT