发明授权
- 专利标题： Base film for photographic films
- 专利标题（中）： 摄影胶片底片
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申请号： US970388申请日： 1997-11-14
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公开(公告)号： US6165701A公开(公告)日： 2000-12-26
- 发明人: Mitsuru Teramoto , Manabu Kimura , Shinya Watanabe , Koji Furuya , Kenji Suzuki
- 申请人： Mitsuru Teramoto , Manabu Kimura , Shinya Watanabe , Koji Furuya , Kenji Suzuki
- 申请人地址： JPX Osaka
- 专利权人： Teijin Limited
- 当前专利权人： Teijin Limited
- 当前专利权人地址： JPX Osaka
- 优先权： JPX8-302919 19961114; JPX9-038983 19970224
- 主分类号： G03C1/795
- IPC分类号： G03C1/795
摘要：
A base film for photographic films formed from a copolyester comprising 97 to 100 mol % of 2,6-naphthalenedicarboxylic acid and 0 to 3 mol % of a dicarboxylic acid other than 2,6-naphthalenedicarboxylic acid and (i) 87 to 99.8 mol % of ethylene glycol, 0.2 to 10 mol % of bis[4-(.omega.-hydroxyalkoxy)phenyl]sulfone and 0 to 3 mol % of a glycol other than ethylene glycol and bis[4-(.omega.-hydroxyalkoxy)phenyl]sulfone or (ii) 97 to 100 mol % of ethylene glycol, 0 to 3 mol % of a diol other than ethylene glycol and 1 to 7 mol % of an oxycarboxylic acid. This base film has an endothermic peak having a peak top temperature, measured by a differential scanning calorimeter, of 120 to 160.degree. C. and showing an endothermic energy of 0.3 mJ/mg or more.
公开/授权文献
- US5248417A Double flow-through filtration apparatus 公开/授权日：1993-09-28