Invention Grant
US07662447B2 Adhesive for polarizing plate, polarizing plate, method for producing same, optical film and image display
失效
用于偏光板的粘合剂，偏振片，其制造方法，光学膜和图像显示
- Patent Title: Adhesive for polarizing plate, polarizing plate, method for producing same, optical film and image display
- Patent Title (中): 用于偏光板的粘合剂，偏振片，其制造方法，光学膜和图像显示
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Application No.: US10583990Application Date: 2004-12-15
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Publication No.: US07662447B2Publication Date: 2010-02-16
- Inventor: Naoki Tomoguchi , Tadayuki Kameyama , Morimasa Wada , Hiroaki Mizushima
- Applicant: Naoki Tomoguchi , Tadayuki Kameyama , Morimasa Wada , Hiroaki Mizushima
- Applicant Address: JP Ibaraki-shi, Osaka
- Assignee: Nitto Denko Corporation
- Current Assignee: Nitto Denko Corporation
- Current Assignee Address: JP Ibaraki-shi, Osaka
- Agency: Westerman, Hattori, Daniels & Adrian, LLP
- Priority: JP2003-432393 20031226
- International Application: PCT/JP2004/018751 WO 20041215
- International Announcement: WO2005/063910 WO 20050714
- Main IPC: B32B7/10
- IPC: B32B7/10
Abstract:
An adhesive of the invention for polarizing plates used for forming an adhesive layer in a polarizing plate in which a polarizer and a transparent protective film is are adhering with each other via the adhesive layer, wherein the adhesive for polarizing plates is an aqueous solution containing a polyvinyl alcohol-based resin having an acetoacetyl group and a crosslinking agent, and the aqueous solution has a pH of 4.3 or less. The adhesive of the invention for polarizing plates is good in durability and long in pot life.
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