发明授权
US08361264B2 Process for producing polarizing plate, polarizing plate produced by the process, and liquid crystal display device using the polarizing plate
有权
用于制造偏光板的方法，通过该方法制造的偏振片和使用偏振片的液晶显示装置
- 专利标题： Process for producing polarizing plate, polarizing plate produced by the process, and liquid crystal display device using the polarizing plate
- 专利标题（中）： 用于制造偏光板的方法，通过该方法制造的偏振片和使用偏振片的液晶显示装置
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申请号： US13203669申请日： 2010-02-01
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公开(公告)号： US08361264B2公开(公告)日： 2013-01-29
- 发明人: Takashi Takebe , Masataka Takimoto , Nobuo Kubo
- 申请人： Takashi Takebe , Masataka Takimoto , Nobuo Kubo
- 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
- 代理机构： Lucas & Mercanti, LLP
- 优先权： JP2009-053255 20090306
- 国际申请： PCT/JP2010/051337 WO 20100201
- 国际公布： WO2010/100986 WO 20100910
- 主分类号： B32B38/18
- IPC分类号： B32B38/18 ; B32B37/00 ; B29C65/00
摘要：
Disclosed is a process for producing a polarizing plate which is transparent, has resistance against high temperatures and high humidity, and is significantly improved in brittleness. Specifically disclosed is a process for producing a polarizing plate comprising two polarizing plate protective films and a polarizer intercalated between the polarizing plate protective films, which is characterized in that at least one of the two polarizing plate protective films is an acrylic film comprising an acrylic resin (A) and a cellulose ester resin (B) at a ratio of 85:15 to 55:45 by mass, and the acrylic film is drawn in at least one direction at a draw ratio of 10 to 150% inclusive and is subsequently bonded to the polarizer with an aqueous adhesive agent.
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