Invention Grant
- Patent Title: Pressure-sensitive adhesive layer-attached polarizing film and image display
- Patent Title (中): 压敏粘合剂层附着的偏光膜和图像显示
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Application No.: US13479406Application Date: 2012-05-24
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Publication No.: US09557450B2Publication Date: 2017-01-31
- Inventor: Atsushi Yasui , Yuusuke Toyama , Tomoyuki Kimura , Masayuki Satake , Shusaku Goto , Takeharu Kitagawa , Minoru Miyatake , Tomohiro Mori , Takashi Kamijo
- Applicant: Atsushi Yasui , Yuusuke Toyama , Tomoyuki Kimura , Masayuki Satake , 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: Westerman, Hattori, Daniels & Adrian, LLP
- Priority: JP2011-118334 20110526
- Main IPC: G02B5/30
- IPC: G02B5/30 ; G02B1/16 ; B32B23/08 ; B32B23/20 ; B32B27/08 ; B32B27/30 ; B32B27/36 ; C09J7/02 ; C09J133/06 ; G02B1/14 ; G02B1/08 ; G02F1/1335 ; C08K3/00 ; C08K3/24

Abstract:
A pressure-sensitive adhesive layer-attached polarizing film of the invention includes: a polarizing film; and a pressure-sensitive adhesive layer provided on the polarizing film, wherein the polarizing film includes a polarizer and a transparent protective film provided on only one side of the polarizer, the pressure-sensitive adhesive layer is provided on a side of the polarizer where the transparent protective film is absent, and the pressure-sensitive adhesive layer is made of a pressure-sensitive adhesive composition containing a (meth)acryl-based polymer (A) and an alkali metal salt (B). The pressure-sensitive adhesive layer-attached polarizing film has a pressure-sensitive adhesive layer with an antistatic function and satisfactory durability and whose optical properties are less likely to be degraded.
Public/Granted literature
- US20120300299A1 PRESSURE-SENSITIVE ADHESIVE LAYER-ATTACHED POLARIZING FILM AND IMAGE DISPLAY Public/Granted day:2012-11-29
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