发明名称 |
Biaxially oriented laminated film comprising particles in a specific ratio of particle density |
摘要 |
Disclosed is a biaxially oriented laminated film having at least three layers which has excellent abrasion resistance and electromagnetic conversion property when the film is used as the base film of a magnetic recording media. The biaxially oriented laminated film comprises at least one outermost layer containing particles A, the particle density ratio at surface layer of the particles A is not less than 0.01, and the mean primary particle size D of the particles A and the thickness T of the outermost layer containing the particles A satisfies the equation; D</=T</=200D.
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申请公布号 |
US5336079(A) |
申请公布日期 |
1994.08.09 |
申请号 |
US19920847586 |
申请日期 |
1992.03.04 |
申请人 |
TORAY INDUSTRIES, INC. |
发明人 |
OKAZAKI, IWAO;ABE, KOICHI;MINAMIZAWA, HIDEHITO;FUKUYAMA, TAKEO |
分类号 |
B32B27/18;G11B5/64;G11B5/733;(IPC1-7):B32B5/16 |
主分类号 |
B32B27/18 |
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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