| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a lubricant for a magnetic memory device, and in more detail, the lubricant having a strong adsorbing power to an applied surface and a high lubricating performance, and the magnetic memory device applied with the lubricant. <P>SOLUTION: This lubricant contains a fluorine polymer expressed by formula 1. R<SP>1</SP>-O-(R<SP>3</SP>O)<SB>l</SB>(R<SP>4</SP>O)<SB>m</SB>(R<SP>5</SP>O)<SB>n</SB>(R<SP>6</SP>O)<SB>o</SB>(R<SP>7</SP>)<SB>p</SB>-R<SP>2</SP>(1) [wherein, R<SP>1</SP>is 1-10C perfluoroalkyl; R<SP>2</SP>is an organic group having≥3 polar groups and/or an organic group having a carbon-carbonπ-bond; R<SP>3</SP>to R<SP>6</SP>are each 1-4C perfluoroalkylene; R<SP>7</SP>is 1-10C perfluoroalkylene or alkylene; and (l), (m), (n), (o) and (p) are each 0 or a positive integer, but they do not become 0 at the same time]. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
