发明名称 |
BIAXIALLY ORIENTED POLYESTER FILM AND MAGNETIC RECORDING TAPE |
摘要 |
A biaxially oriented polyester film which has a Young' s modulus (YMD) in the film machine direction (YMD) of 6.5 GPa or more and a Young's modulus in the width direction (YTD) of 8.2 to 9.8 GPa and is used as a base film for magnetic recording tapes of linear recording system, and a magnetic recording tape of linear recording system comprising the same as a base film. There are provided a biaxially oriented polyester film which has excellent dimensional stability, especially dimensional stability in the width direction and is suitable for use as a base film for magnetic recording tapes of linear recording system and a magnetic recording tape comprising the same.
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申请公布号 |
EP1983512(A1) |
申请公布日期 |
2008.10.22 |
申请号 |
EP20060843740 |
申请日期 |
2006.12.27 |
申请人 |
TEIJIN DUPONT FILMS JAPAN LIMITED |
发明人 |
KOBAYASHI, IEYASU;MURO, SHINJI;ISHIDA, TAKESHI |
分类号 |
G11B5/73;B29C55/12;C08J5/18;G11B5/733;G11B5/78 |
主分类号 |
G11B5/73 |
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