发明名称 |
MAGNETIC RECORDING MEDIUM |
摘要 |
PURPOSE: To improve the durability of a magnetic layer by selecting a prescribed Young's modulus for a coating layer and selecting a maximum impregnated content of a liquid lubricant on the surface of the magnetic layer to be higher than a prescribed value. CONSTITUTION: The magnetic recording medium has a non-magnetic support base, a coating layer provided on the support base, including at least one kind of cross-linked resin, including inorganic powder dispersed in the binder and a liquid lubricant, and a magnetic layer provided in contact onto the coating layer and including a binder and magnetic powder dispersed in the binder. The magnetic recording medium is characterized in that the Young's modulus of the coated layer is 1×10<11> dyn/cm<2> or below and the maximum content of the liquid lubricant measured on the surface of the magnetic layer is selected to be 400mg/cm<3> or higher. The durability of the magnetic layer is improved by selecting the Young's modulus of the coated layer to be 1×10dyn/cm<2> or below and the maximum content of the liquid lubricant measured on the surface of the magnetic layer to be 400mg/cm<3> or higher in this way.
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申请公布号 |
JPH08273143(A) |
申请公布日期 |
1996.10.18 |
申请号 |
JP19950071249 |
申请日期 |
1995.03.29 |
申请人 |
MINNESOTA MINING & MFG CO <3M> |
发明人 |
OIRI SHIGETO;TSUKAMOTO YOJI;YASUI HIDEAKI |
分类号 |
G11B5/702;C09D5/23;(IPC1-7):G11B5/702 |
主分类号 |
G11B5/702 |
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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