Invention Grant
- Patent Title: Hard coat film
- Patent Title (中): 硬涂膜
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Application No.: US12672556Application Date: 2008-08-08
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Publication No.: US08597780B2Publication Date: 2013-12-03
- Inventor: Emi Shimano , Toshio Yoshihara
- Applicant: Emi Shimano , Toshio Yoshihara
- Applicant Address: JP Tokyo-to
- Assignee: Dai Nippon Printing Co., Ltd.
- Current Assignee: Dai Nippon Printing Co., Ltd.
- Current Assignee Address: JP Tokyo-to
- Agency: Ladas & Parry LLP
- Priority: JP2007-209780 20070810; JP2007-209785 20070810
- International Application: PCT/JP2008/064284 WO 20080808
- International Announcement: WO2009/022639 WO 20090219
- Main IPC: B32B5/16
- IPC: B32B5/16

Abstract:
A hard coat film excellent in abrasion resistance and saponification resistance. A hard coat layer includes a cured product of a curable resin composition containing a reactive inorganic fine particle having an average particle diameter of 5 nm to 30 nm, and has a skin layer, wherein the reactive inorganic fine particles are localized, in its surface region being an interface and its vicinity on a side opposite to a transparent substrate film side of the hard coat layer. Alternatively, the reactive inorganic fine particle has an average particle diameter of 30 nm to 100 nm, and has density distribution in a thickness direction of the hard coat layer lowest at an interface on a side opposite to a transparent substrate film side of the hard coat layer while the density is highest at an interface and its vicinity on the transparent substrate film side of the hard coat layer.
Public/Granted literature
- US20110217541A1 HARD COAT FILM Public/Granted day:2011-09-08
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