发明名称 |
Biaxially-oriented polyester film |
摘要 |
A biaxially-oriented polyester film includes at least two layers and at least one outermost layer is composed of a polyester having a rigid amorphous content of about 10 to 55%. The biaxially-oriented polyester film has a longitudinal Young's modulus of at least about 4.5 GPa. The biaxially-oriented polyester film is suitable for high-density magnetic recording media, such as digital video tapes and high-density data recording tapes.
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申请公布号 |
US6319587(B1) |
申请公布日期 |
2001.11.20 |
申请号 |
US19990373258 |
申请日期 |
1999.08.12 |
申请人 |
TORAY INDUSTRIES, INC. |
发明人 |
OKAZAKI IWAO;NAKAJIMA SHOZI;NAKAMORI YUKARI |
分类号 |
B29C55/14;B32B27/36;G11B5/73;G11B5/733;(IPC1-7):B32B27/18;B32B31/16 |
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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