Invention Grant
- Patent Title: Functional sheet with protective films
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Application No.: US14892050Application Date: 2014-05-21
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Publication No.: US09618658B2Publication Date: 2017-04-11
- Inventor: Ryuji Yoshida , Toshihiko Takano , Taisuke Sasagawa , Tomomi Nakayama
- 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, P.L.C.
- Priority: JP2013-109822 20130524; JP2013-244726 20131127
- International Application: PCT/JP2014/063469 WO 20140521
- International Announcement: WO2014/189078 WO 20141127
- Main IPC: G02B1/00
- IPC: G02B1/00 ; G02B1/14 ; B32B27/32 ; G02B5/30 ; G02C7/10 ; B29C45/14 ; B32B27/06 ; B32B27/30 ; B29D11/00 ; B32B7/02 ; B32B7/12 ; B32B27/08 ; B32B27/36 ; G02B1/04 ; G02B5/23 ; B29L11/00 ; B29K669/00 ; B29K23/00 ; B29K25/00 ; B29K29/00 ; B29K69/00

Abstract:
A functional sheet with protective films obtained by laminating protective sheets includes aromatic polycarbonate onto a functional layer that is a polyvinyl alcohol polarizing layer or a photocromic layer or any combination thereof and having the protective films adhere to the protective sheets. The protective films have at least two or three layers i.e., a base layer composed of a polypropylene that has a melting point higher than the glass transition temperature of an aromatic polycarbonate; an adhesive layer composed of a heat plastic polyolefin elastomer composed of a polyolefin that has a melting point from a temperature that is 15° C. lower than the glass transition temperature of the aromatic polycarbonate to a temperature that is lower than the glass transition temperature and a styrene-olefin-styrene co-poly-elastomer; and a middle layer composed of a polyolefin resin between the base layer and the adhesive layer.
Public/Granted literature
- US20160109622A1 A FUNCTIONAL SHEET WITH PROTECTIVE FILMS Public/Granted day:2016-04-21
Information query
IPC分类:
G | 物理 |
G02 | 光学 |
G02B | 光学元件、系统或仪器 |
G02B1/00 | 按制造材料区分的光学元件;用于光学元件的光学涂层 |