Invention Grant
- Patent Title: Film for optical applications
- Patent Title (中): 光学应用薄膜
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Application No.: US10977605Application Date: 2004-10-28
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Publication No.: US07655308B2Publication Date: 2010-02-02
- Inventor: Satoru Shoshi , Yuki Hongo , Hideo Seno
- Applicant: Satoru Shoshi , Yuki Hongo , Hideo Seno
- Applicant Address: JP Tokyo
- Assignee: Lintec Corporation
- Current Assignee: Lintec Corporation
- Current Assignee Address: JP Tokyo
- Agency: Frishauf, Holtz, Goodman & Chick, P.C.
- Priority: JP2003-381436 20031111
- Main IPC: B32B27/40
- IPC: B32B27/40 ; B32B27/32 ; B32B27/36

Abstract:
A hard coat film for optical applications which suppresses formation of defects on the surface derived from roughness of the surface of the substrate film, exhibits excellent scratch resistance and crack resistance and suppresses curling of the substrate film is provided. The film for optical applications comprises (A) a layer of a cured resin 2 which comprises 70% by weight or more of a cured resin derived from a difunctional urethane acrylate-based oligomer having a weight-average molecular weight of 3,000 or greater and has a thickness of 5 to 25 μm and (B) a hard coat layer 3 which comprises a resin cured by irradiation with an ionizing radiation and has a thickness of 1 to 15 μm, layers (A) and (B) being successively laminated on one face of a substrate film 1.
Public/Granted literature
- US20050238879A1 Film for optical applications Public/Granted day:2005-10-27
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