Invention Grant
US07927521B2 Method for producing cellulose acylate film and optical compensation film for liquid crystal display plate produced by using the method
有权
使用该方法生产的用于制备纤维素酰化物膜的方法和用于液晶显示板的光学补偿膜
- Patent Title: Method for producing cellulose acylate film and optical compensation film for liquid crystal display plate produced by using the method
- Patent Title (中): 使用该方法生产的用于制备纤维素酰化物膜的方法和用于液晶显示板的光学补偿膜
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Application No.: US11916203Application Date: 2006-05-29
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Publication No.: US07927521B2Publication Date: 2011-04-19
- Inventor: Masaaki Otoshi , Akihide Fujita , Shinichi Nakai
- Applicant: Masaaki Otoshi , Akihide Fujita , Shinichi Nakai
- Applicant Address: JP Tokyo
- Assignee: FUJIFILM Corporation
- Current Assignee: FUJIFILM Corporation
- Current Assignee Address: JP Tokyo
- Agency: Sughrue Mion, PLLC
- Priority: JP2005-160002 20050531
- International Application: PCT/JP2006/311154 WO 20060529
- International Announcement: WO2006/129825 WO 20061207
- Main IPC: B29D11/00
- IPC: B29D11/00 ; B29D7/01 ; B29C67/20 ; B29C47/38 ; B29C55/00
Abstract:
According to the present invention, a cellulose acylate film having high thickness precision and no streaks can be formed by producing a film with a cellulose acylate resin by means of the polishing roller method, and a high-performance optical film, which is free from the retardation distribution, can be produced by subsequently stretching the cellulose acylate film thus obtained within a magnification range from 1 or more and 2.5 or less.
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