Invention Grant
- Patent Title: Scratch-resistant polycarbonate resin laminate
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Application No.: US15027769Application Date: 2014-10-08
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Publication No.: US10239297B2Publication Date: 2019-03-26
- Inventor: Tatsuya Kanagawa , Toshinari Aoki , Youji Uehata , Tomohiro Ube
- Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC. , MGC FILSHEET CO., LTD.
- Applicant Address: JP Tokyo JP Saitama
- Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.,MGC FILSHEET CO., LTD.
- Current Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.,MGC FILSHEET CO., LTD.
- Current Assignee Address: JP Tokyo JP Saitama
- Agency: Greenblum & Bernstein, PLC
- Priority: JP2013-213679 20131011
- International Application: PCT/JP2014/076973 WO 20141008
- International Announcement: WO2015/053328 WO 20150416
- Main IPC: B32B27/08
- IPC: B32B27/08 ; B32B27/36 ; B32B27/30

Abstract:
The present invention aims to provide a multi-layer sheet and a multi-layer film, each ensuring not only high transparency but also scratch resistance and being easy to print and thermoform.The above aim was achieved by a multi-layer sheet and a multi-layer film, each being a laminate which comprises a polycarbonate-based resin layer as a substrate and has a thermoplastic acrylic resin layer containing silicon dioxide particles as an outermost layer on one or both surfaces of the substrate, wherein the silicon dioxide particles have an average particle size of 0.1 to 2 μm, and wherein the content of the silicon dioxide particles is 0.1% to 1% by weight, relative to the total weight of the thermoplastic acrylic resin layer.
Public/Granted literature
- US20160250833A1 SCRATCH-RESISTANT POLYCARBONATE RESIN LAMINATE Public/Granted day:2016-09-01
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