发明名称 |
AROMATIC POLYAMIDE FILM AND MAGNETIC RECORDING MEDIUM MADE BY USING THE SAME |
摘要 |
<p>The present invention provides an aromatic polyamide film wherein a heat-shrinkage in the TD direction at 220 DEG C is of 0.2 to 8% under a load of 80 kg/cm<2>, and wherein an average ten-point roughness Rz of the surface that is opposite to a surface for providing a magnetic layer is 10 to 200 nm; and a magnetic recording medium, wherein a magnetic layer is provided on a surface of the film. Since the heat-shrinkage at a high temperature and the properties of the surface of the film are within the confines of the present invention, there is obtained a magnetic recording medium having a high degree of flatness with small curls, and a high recording density by using the film.</p> |
申请公布号 |
EP0920976(A4) |
申请公布日期 |
2001.06.27 |
申请号 |
EP19980909779 |
申请日期 |
1998.03.19 |
申请人 |
TORAY INDUSTRIES, INC. |
发明人 |
ITO, NOBUAKI;YONEYAMA, KAZUMASA |
分类号 |
B29C55/14;B29D7/01;C08J5/18;G11B5/73;G11B5/74;(IPC1-7):B29C55/14;G11B5/704 |
主分类号 |
B29C55/14 |
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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