发明申请
US20080246189A1 Cellulose Resin Film, Process for Producing Cellulose Resin Film, Antireflection Film, Polarizing Plate, and Liquid Crystal Display
有权
纤维素树脂膜，生产纤维素树脂膜的方法，抗反射膜，偏光板和液晶显示器
- 专利标题： Cellulose Resin Film, Process for Producing Cellulose Resin Film, Antireflection Film, Polarizing Plate, and Liquid Crystal Display
- 专利标题（中）： 纤维素树脂膜，生产纤维素树脂膜的方法，抗反射膜，偏光板和液晶显示器
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申请号： US12092016申请日： 2006-10-19
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公开(公告)号： US20080246189A1公开(公告)日： 2008-10-09
- 发明人: Noriyasu Kuzuhara , Takashi Murakami
- 申请人： Noriyasu Kuzuhara , Takashi Murakami
- 申请人地址： JP Tokyo
- 专利权人： KONICA MINOLTA OPTO, INC.
- 当前专利权人： KONICA MINOLTA OPTO, INC.
- 当前专利权人地址： JP Tokyo
- 优先权： JP2005-320798 20051104
- 国际申请： PCT/JP2006/320833 WO 20061019
- 主分类号： B29C41/24
- IPC分类号： B29C41/24
摘要：
A cellulosic resin film which is wide and, despite this, is extremely reduced in breakage during a stretching step; a process for producing the film; and an antireflection film, a polarizer, and a liquid-crystal display each comprising or employing the film. The process for cellulosic resin film production comprises casting a liquid cellulosic resin on a support to form a web, peeling the web from the support, subsequently drying the web in a first edge gripping step (105) while gripping both edges, temporarily eliminating the edge gripping, and then stretching both edges in the width direction in a second edge gripping step (109). The process is characterized in that the first edge gripping step is followed by a heat treatment step in which both edge parts of the web relieved from the edge gripping are heated with heating rolls (107 and 108).
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