发明名称 |
Base film of digital compact cassette tape |
摘要 |
A base film of a digital compact cassette tape comprising at least two layers consisting of laminated biaxially oriented polyester films, one surface of which has center line average roughness of 5 to 20 nm, and the other surface of which has center line average roughness of 15 to 45 nm, and which has a Young's modulus in a machine direction of at least 600 kg/mm2, which base film is excellent in running stability and electromagnetic conversion characteristics.
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申请公布号 |
US5419942(A) |
申请公布日期 |
1995.05.30 |
申请号 |
US19930004261 |
申请日期 |
1993.01.14 |
申请人 |
DIAFOIL HOECHST COMPANY, LIMITED |
发明人 |
MASUDA, NARIHIRO;INAGAKI, MASASHI |
分类号 |
B29C55/12;B29K67/00;B32B27/36;C08L67/00;G11B5/73;G11B5/733;(IPC1-7):B32B7/00 |
主分类号 |
B29C55/12 |
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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