Invention Grant
- Patent Title: Transparent laminate film
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Application No.: US15552940Application Date: 2016-03-09
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Publication No.: US10066070B2Publication Date: 2018-09-04
- Inventor: Shota Shimosugi
- Applicant: DAICEL CORPORATION
- Applicant Address: JP Osaka-Shi
- Assignee: DAICEL CORPORATION
- Current Assignee: DAICEL CORPORATION
- Current Assignee Address: JP Osaka-Shi
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: JP2015-076298 20150402
- International Application: PCT/JP2016/057405 WO 20160309
- International Announcement: WO2016/158270 WO 20161006
- Main IPC: C08J7/04
- IPC: C08J7/04 ; G06F3/044

Abstract:
A coat layer and a substrate layer are combined to prepare a transparent laminate film; the coat layer has a surface with a maximum height of rolling circle waviness profile (WEM) in accordance with JIS B0610 of 5 to 15 μm and an arithmetic average roughness (Ra) of not less than 0.5 μm. The transparent laminate film provides a comfortable writing experience and a reduced abrasion of a pen tip. The coat layer may have the surface with the arithmetic average roughness (Ra) of 0.5 to 5 μm. The coat layer may contain particles and a binder component. The binder component may comprise a polyfunctional (meth)acrylate, and a urethane (meth)acrylate and/or a thermoplastic elastomer. The transparent laminate film may have a total light transmittance of not less than 85%. The transparent laminate film may be disposed on a surface of a display of a pen-input device.
Public/Granted literature
- US20180030229A1 TRANSPARENT LAMINATE FILM Public/Granted day:2018-02-01
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