Invention Grant
- Patent Title: Optical laminate comprising hard coat layer comprised of cured product of composition comprising (meth)acrylic prepolymer having hydroxyl group
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Application No.: US14111866Application Date: 2012-04-18
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Publication No.: US09720134B2Publication Date: 2017-08-01
- Inventor: Shusaku Shibata , Katsunori Takada , Hiroyuki Takemoto
- Applicant: Shusaku Shibata , Katsunori Takada , Hiroyuki Takemoto
- Applicant Address: JP Osaka
- Assignee: NITTO DENKO CORPORATION
- Current Assignee: NITTO DENKO CORPORATION
- Current Assignee Address: JP Osaka
- Agency: Westerman, Hattori, Daniels & Adrian, LLP
- Priority: JP2011-095721 20110422; JP2012-093002 20120416
- International Application: PCT/JP2012/060420 WO 20120418
- International Announcement: WO2012/144508 WO 20121026
- Main IPC: G02B1/04
- IPC: G02B1/04 ; G02B1/10 ; G02B5/30

Abstract:
There is provided an optical laminate excellent in adhesiveness between a (meth)acrylic resin film (base material film) having low moisture permeability and a UV absorbing ability and a hard coat layer, and has suppressed interference unevenness. An optical laminate according to an embodiment of the present invention includes: a base material layer formed of a (meth)acrylic resin film; a hard coat layer formed by applying a composition for forming a hard coat layer to the (meth)acrylic resin film; and a penetration layer formed through penetration of the composition for forming a hard coat layer into the (meth)acrylic resin film, the penetration layer being placed between the base material layer and the hard coat layer, wherein the penetration layer has a thickness of 1.2 μm or more.
Public/Granted literature
- US20140227482A1 OPTICAL LAMINATE Public/Granted day:2014-08-14
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