发明名称 |
MAGNETIC RECORDING MEDIUM AND ITS MANUFACTURING METHOD |
摘要 |
PROBLEM TO BE SOLVED: To realize excellent running performance and durability of a magnetic recording medium by using a lubricant having a lubricating effect kept for a long period and enhancing the adhesion stability between a protective film and the lubricant. SOLUTION: The magnetic recording medium provided with a non-magnetic substrate 2, a magnetic layer 3 formed on the non-magnetic substrate 2, a protective film 4 formed on the magnetic layer 3 and having a surface top-coated with an aromatic alcohol and an outermost layer holding the lubricant containing an ester compound of perfluoropolyether having a hydroxyl group at the terminal of its molecule and a long chain carboxylic acid is characterized in that the quantity of the aromatic alcohol is more than the quantity of the ester compound.
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申请公布号 |
JP2001216622(A) |
申请公布日期 |
2001.08.10 |
申请号 |
JP20000006188 |
申请日期 |
2000.01.11 |
申请人 |
SONY CORP |
发明人 |
ITO JOTA;SATO YASUYOSHI;YATAGAI HIROSHI |
分类号 |
G11B5/725;C10M105/54;C10N40/18;(IPC1-7):G11B5/725 |
主分类号 |
G11B5/725 |
代理机构 |
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代理人 |
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地址 |
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