发明授权
US5969080A Film made of an aromatic polyamide and/or aromatic polyimide and a
magnetic recording medium using it
失效
由芳族聚酰胺和/或芳族聚酰亚胺制成的膜和使用它的磁记录介质
- 专利标题： Film made of an aromatic polyamide and/or aromatic polyimide and a magnetic recording medium using it
- 专利标题（中）： 由芳族聚酰胺和/或芳族聚酰亚胺制成的膜和使用它的磁记录介质
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申请号： US981759申请日： 1997-12-30
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公开(公告)号： US5969080A公开(公告)日： 1999-10-19
- 发明人: Toshiya Ieki , Akimitsu Tsukuda , Toshihiro Tsuzuki
- 申请人： Toshiya Ieki , Akimitsu Tsukuda , Toshihiro Tsuzuki
- 申请人地址： JPX
- 专利权人： Toray Industries, Inc.
- 当前专利权人： Toray Industries, Inc.
- 当前专利权人地址： JPX
- 优先权： JPX8-126908 19960522
- 主分类号： B29D7/01
- IPC分类号： B29D7/01 ; C08J5/18 ; C09D5/23 ; G11B5/73 ; C08G73/00 ; B32B27/00
摘要：
A film excellent in flatness, and not degraded in flatness by curling, etc. even at high temperature during processing and use as a product.The film of the present invention is made of an aromatic polyamide and/or aromatic polyimide, and satisfies the following:(Pmax-Pmin)/Pavr.ltoreq.1.0where Pmax is the maximum value of the orientation degree obtained from the Raman spectrum in the section direction of the film; Pmin is the minimum value and Pavr is the average value.
公开/授权文献
- US5438119A Method of obtaining a peptide with desired target property 公开/授权日：1995-08-01
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