发明授权
US08852374B2 Method for manufacturing optical film laminate including polarizing film
有权
制造包括偏光膜的光学薄膜层叠体的方法
- 专利标题： Method for manufacturing optical film laminate including polarizing film
- 专利标题（中）： 制造包括偏光膜的光学薄膜层叠体的方法
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申请号： US13222603申请日： 2011-08-31
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公开(公告)号： US08852374B2公开(公告)日： 2014-10-07
- 发明人: Shusaku Goto , Takeharu Kitagawa , Minoru Miyatake , Tomohiro Mori , Takashi Kamijo
- 申请人： Shusaku Goto , Takeharu Kitagawa , Minoru Miyatake , Tomohiro Mori , Takashi Kamijo
- 申请人地址： JP Ibaraki-shi, 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 Ibaraki-shi, Osaka
- 代理机构： Lowe Hauptman & Ham, LLP
- 优先权： JP2010-197413 20100903; JP2010-263692 20101126
- 主分类号： B29C65/00
- IPC分类号： B29C65/00 ; B32B37/00 ; B05D5/06 ; C03C17/00 ; G02B1/10 ; G02B5/30 ; G02F1/1335 ; B29C55/02 ; G02F1/13363 ; B29K29/00 ; B29K67/00
摘要：
A method for manufacturing an optical film laminate including subjecting a laminate including the non-crystallizable ester type thermoplastic resin substrate and the polyvinyl alcohol type resin layer formed on the non-crystallizable ester type thermoplastic resin substrate to an elevated temperature in-air stretching to form a stretched laminate comprising a stretched intermediate consisting of a molecularly oriented polyvinyl alcohol type resin, impregnating the dichroic material in the stretched laminate to form a dyed laminate including a dyed intermediate comprising a polyvinyl alcohol type resin layer having the dichroic material impregnated therein in an oriented state, and stretching the dyed laminate in boric acid solution to form an optical film laminate.