- 专利标题： Method of producing thin polarizing film involving in-air stretching, underwater stretching, and stretching while drying
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申请号： US13814117申请日： 2011-09-08
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公开(公告)号： US10160173B2公开(公告)日： 2018-12-25
- 发明人: Tomohiro Mori , Minoru Miyatake , Takashi Kamijo , Shusaku Goto , Takeharu Kitagawa
- 申请人： Tomohiro Mori , Minoru Miyatake , Takashi Kamijo , Shusaku Goto , Takeharu Kitagawa
- 申请人地址： JP Osaka
- 专利权人： NITTO DENKO CORPORATION
- 当前专利权人： NITTO DENKO CORPORATION
- 当前专利权人地址： JP Osaka
- 代理机构： Westerman, Hattori, Daniels & Adrian, LLP
- 优先权： JP2010-201520 20100909; JP2011-118658 20110527
- 国际申请： PCT/JP2011/070438 WO 20110908
- 国际公布： WO2012/033153 WO 20120315
- 主分类号： G02B5/30
- IPC分类号： G02B5/30 ; B29D11/00 ; B29C55/02 ; B29C55/06 ; B29K29/00
摘要：
A method of producing a thin polarizing film having an excellent polarization degree includes, forming a polyvinyl alcohol-based resin layer on a thermoplastic resin substrate to prepare a laminate, subjecting the laminate to underwater stretching in an aqueous solution of boric acid and stretching the laminate while drying the laminate after the underwater stretching.
公开/授权文献
- US20130135725A1 METHOD OF PRODUCING THIN POLARIZING FILM 公开/授权日：2013-05-30