Invention Grant
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
- Patent Title: Method for manufacturing optical film laminate including polarizing film
- Patent Title (中): 制造包括偏光膜的光学薄膜层叠体的方法
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Application No.: US13222603Application Date: 2011-08-31
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Publication No.: US08852374B2Publication Date: 2014-10-07
- Inventor: Shusaku Goto , Takeharu Kitagawa , Minoru Miyatake , Tomohiro Mori , Takashi Kamijo
- Applicant: Shusaku Goto , Takeharu Kitagawa , Minoru Miyatake , Tomohiro Mori , Takashi Kamijo
- Applicant Address: JP Ibaraki-shi, Osaka
- Assignee: Nitto Denko Corporation
- Current Assignee: Nitto Denko Corporation
- Current Assignee Address: JP Ibaraki-shi, Osaka
- Agency: Lowe Hauptman & Ham, LLP
- Priority: JP2010-197413 20100903; JP2010-263692 20101126
- Main IPC: B29C65/00
- IPC: B29C65/00 ; B32B37/00 ; B05D5/06 ; C03C17/00 ; G02B1/10 ; G02B5/30 ; G02F1/1335 ; B29C55/02 ; G02F1/13363 ; B29K29/00 ; B29K67/00

Abstract:
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.
Public/Granted literature
- US20120055621A1 METHOD FOR MANUFACTURING OPTICAL FILM LAMINATE INCLUDING POLARIZING FILM Public/Granted day:2012-03-08
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