发明名称 |
MAGNETIC RECORDING MEDIUM |
摘要 |
PURPOSE:To obtain such a medium with excellent durability and little abrasion of the magnetic layer by incorporating a specific ester compd. into the magnetic layer. CONSTITUTION:The ester compd. expressed by formula I is incorporated into the magnetic layer essentially comprising magnetic powder and a binder. In formula I, R represents an aliphatic hydrocarbon group with a branched chain with 3 - 10 carbons and R' represents a satd. or unsatd. aliphatic hydrocarbon group with 7 - 21 carbons. This ester compd. is produced from a branched alcohol with 3 - 10 carbons and a monobasic fatty acid with 8 - 22 carbons, and more preferably a onobasic fatty acid with 12 - 18 carbons. This gives more preferable lubricating property and the obtd. medium has significantly improved durability in a wide range of environments. |
申请公布号 |
JPH02199622(A) |
申请公布日期 |
1990.08.08 |
申请号 |
JP19890018139 |
申请日期 |
1989.01.27 |
申请人 |
KAO CORP |
发明人 |
KANNEN NAOKI;YAMASHITA KAZUTAKA;YANAI HIDETOSHI |
分类号 |
G11B5/708;C09D5/23;C09D127/04;C09D127/06;C09D175/00;C09D175/04;C10M105/36;C10N40/18 |
主分类号 |
G11B5/708 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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