发明申请
US20130248118A1 ADHESIVE LAYER FOR OPTICAL FILM, OPTICAL FILM HAVING ADHESIVE LAYER, IMAGE DISPLAY DEVICE, AND DETACHMENT METHOD FOR OPTICAL FILM
有权
用于光学胶片的粘合层,具有粘合层的光学膜,图像显示装置和用于光学膜的分离方法
- 专利标题: ADHESIVE LAYER FOR OPTICAL FILM, OPTICAL FILM HAVING ADHESIVE LAYER, IMAGE DISPLAY DEVICE, AND DETACHMENT METHOD FOR OPTICAL FILM
- 专利标题(中): 用于光学胶片的粘合层,具有粘合层的光学膜,图像显示装置和用于光学膜的分离方法
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申请号: US13988631申请日: 2011-11-18
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公开(公告)号: US20130248118A1公开(公告)日: 2013-09-26
- 发明人: Kunihiro Inui , Toshitsugu Hosokawa , Takaaki Ishii , Masayuki Satake , Kenichi Okada , Toshitaka Takahashi , Taiki Shimokuri , Yousuke Makihata
- 申请人: Kunihiro Inui , Toshitsugu Hosokawa , Takaaki Ishii , Masayuki Satake , Kenichi Okada , Toshitaka Takahashi , Taiki Shimokuri , Yousuke Makihata
- 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
- 优先权: JP2010-262703 20101125; JP2011-225032 20111012
- 国际申请: PCT/JP2011/076677 WO 20111118
- 主分类号: C09J133/08
- IPC分类号: C09J133/08 ; B32B38/10 ; C09J7/02
摘要:
A pressure-sensitive adhesive layer for an optical film made from an aqueous dispersion-type pressure-sensitive adhesive composition, wherein the aqueous dispersion-type pressure-sensitive adhesive composition is an aqueous dispersion comprising a water-dispersible (meth)acryl-based copolymer (A) having a glass transition temperature from −55° C. to less than 0° C.; and a water-soluble or water-dispersible component (B) having a glass transition temperature of 0° C. or more, a mixture ratio (A)/(B) is in the range of 50-97/3-50, the component (B) forms domains with maximum lengths between 1 nm and 200 nm in a resin component made of the (meth)acryl-based copolymer (A), and the pressure-sensitive adhesive layer has a haze value (H20) of 1% or less when having a thickness of 20 μm. The pressure-sensitive adhesive layer for an optical film, which is made from an aqueous dispersion-type pressure-sensitive adhesive composition has good reworkability or recyclability, and has a sufficient level of durability.
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