发明名称 |
LAMINATED FILM AND METHOD OF MANUFACTURING THE SAME AND METHOD OF MANUFACTURING MAGNETIC RECORDING TAPE USING THE SAME |
摘要 |
PROBLEM TO BE SOLVED: To provide a polyester film which can exhibit superior electromagnetic conversion characteristics and error rate characteristics even when used for a high-density magnetic recording tape, and is superior in handling characteristics in manufacturing processes.SOLUTION: There is provided a laminated film which is formed by laminating a layer A and layers B on both surfaces thereof through coextrusion and which uses the layer A by peeling the layers B. The layer A is formed of polyester A having, as a main repetition unit, ethylene terephthalate or ethylene-2,6-naphthalene dicarboxylate and has a thickness of 0.5-4.0 μm. The layers B are peelable from the polyester film A and are formed of a thermoplastic resin B. |
申请公布号 |
JP2013203019(A) |
申请公布日期 |
2013.10.07 |
申请号 |
JP20120076861 |
申请日期 |
2012.03.29 |
申请人 |
TEIJIN DUPONT FILMS JAPAN LTD |
发明人 |
TANAKA YOSHITAKA;IIDA MAKOTO |
分类号 |
B32B27/36;B29C47/06;B29K33/04;B29L7/00;B29L9/00;G11B5/73;G11B5/78 |
主分类号 |
B32B27/36 |
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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