Invention Grant
- Patent Title: Anti-reflection film
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Application No.: US16645252Application Date: 2018-08-06
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Publication No.: US11372138B2Publication Date: 2022-06-28
- Inventor: Takahiro Sakakibara , Kouichi Umemoto , Ryouta Kojima , Hiroki Kageyama
- Applicant: DAICEL CORPORATION
- Applicant Address: JP Osaka
- Assignee: DAICEL CORPORATION
- Current Assignee: DAICEL CORPORATION
- Current Assignee Address: JP Osaka
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: JPJP2017-172771 20170908,JPJP2018-020017 20180207,JPJP2018-020018 20180207
- International Application: PCT/JP2018/029481 WO 20180806
- International Announcement: WO2019/049579 WO 20190314
- Main IPC: G02B1/111
- IPC: G02B1/111 ; G02B1/14 ; C08K7/26 ; C08K9/06 ; B32B27/20 ; B32B27/18 ; B32B27/30 ; B82Y30/00

Abstract:
An anti-reflection film (X) of the present invention includes a laminated structure including a substrate (11), a hard coat layer (12), and an anti-reflection layer (13), and a luminous reflectance of the anti-reflection layer (13) side is 2% or less. The anti-reflection layer (13) includes a surface (13a) having a coefficient of kinetic friction of 0.3 or less and a coefficient of static friction of 0.3 or less. In addition, in the anti-reflection film (X), after a rubbing test performed on the surface (13a) using steel wool #0000 as a rubbing material under conditions of a load of 200 g/cm2, a rubbing stroke length of 10 cm, and reciprocations of 1000 times, a difference of the haze value (%) after the rubbing test from the haze value (%) before the rubbing test is 0.1 or less. Such an anti-reflection film is suitable for achieving high scratch resistance together with high anti-reflective properties.
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