Invention Grant
- Patent Title: Surface protection film
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Application No.: US16618162Application Date: 2018-05-29
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Publication No.: US11993737B2Publication Date: 2024-05-28
- Inventor: Yutaka Kamada , Arata Tani , Toshihiko Horie , Soh Kato
- Applicant: BANDO CHEMICAL INDUSTRIES, LTD.
- Applicant Address: JP Hyogo
- Assignee: BANDO CHEMICAL INDUSTRIES, LTD.
- Current Assignee: BANDO CHEMICAL INDUSTRIES, LTD.
- Current Assignee Address: JP Hyogo
- Agency: JCIPRNET
- Priority: JP 17107569 2017.05.31
- International Application: PCT/JP2018/020485 2018.05.29
- International Announcement: WO2018/221490A 2018.12.06
- Date entered country: 2019-11-29
- Main IPC: C09J7/29
- IPC: C09J7/29 ; B32B7/12 ; B32B27/36 ; B32B27/40 ; C09J7/20 ; C09J7/25 ; C09J7/40 ; G02B1/14

Abstract:
The present invention addresses the problem of providing a surface protection film which provides an excellent writing sensation when a touch pen is used thereon and excellent scratch resistance against a touch pen. As a solution, provided is a surface protection film which has on the outermost surface thereof a protection layer formed of a polyurethane, wherein the polyurethane has an international rubber hardness degree (IRHD) of 87.0-98.0 and a tan δ peak value of 0.6 or more.
Public/Granted literature
- US20200339840A1 SURFACE PROTECTION FILM Public/Granted day:2020-10-29
Information query
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