Invention Grant
US08685523B2 Surface protection film and optical film with surface protection film
失效
表面保护膜和带有表面保护膜的光学膜
- Patent Title: Surface protection film and optical film with surface protection film
- Patent Title (中): 表面保护膜和带有表面保护膜的光学膜
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Application No.: US12446167Application Date: 2007-10-01
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Publication No.: US08685523B2Publication Date: 2014-04-01
- Inventor: Takumi Yutou , Shinichi Takada , Mitsushi Yamamoto , Kazuhito Okumura
- Applicant: Takumi Yutou , Shinichi Takada , Mitsushi Yamamoto , Kazuhito Okumura
- Applicant Address: JP Osaka
- Assignee: Nitto Denko Corporation
- Current Assignee: Nitto Denko Corporation
- Current Assignee Address: JP Osaka
- Agency: Knobbe, Martens, Olson & Bear LLP
- Priority: JP2006-283881 20061018
- International Application: PCT/JP2007/069203 WO 20071001
- International Announcement: WO2008/047593 WO 20080424
- Main IPC: B32B7/02
- IPC: B32B7/02 ; B32B7/10

Abstract:
There are provided an optical surface protection film capable of permitting even a visual inspection of a coated body having a fine roughness, such as a prism sheet, to be performed under the condition that the protection film is attached to the coated body and excelling in adhesion reliability without an optical adverse effect on the coated body, and an optical film with the surface protection film. The optical surface protection film (1) has a base material layer (10) and an adhesive layer (12) stacked on one surface of the base material layer. The surface of the base material layer (10) on the side of the adhesive layer (12) has an arithmetic surface average roughness (Ra2) of 0.65 μm or less. The other surface of the base material layer (10) has an arithmetic surface average roughness (Ra1) of 0.6 μm or more.
Public/Granted literature
- US20100323156A1 SURFACE PROTECTION FILM AND OPTICAL FILM WITH SURFACE PROTECTION FILM Public/Granted day:2010-12-23
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