Invention Grant
- Patent Title: Transparent adhesive sheet and image display device
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Application No.: US14058318Application Date: 2013-10-21
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Publication No.: US09394465B2Publication Date: 2016-07-19
- Inventor: Makoto Inenaga
- Applicant: MITSUBISHI PLASTICS, INC.
- Applicant Address: JP Chiyoda-ku
- Assignee: MITSUBISHI PLASTICS, INC.
- Current Assignee: MITSUBISHI PLASTICS, INC.
- Current Assignee Address: JP Chiyoda-ku
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P
- Priority: JP2008-265821 20081015
- Main IPC: B32B7/02
- IPC: B32B7/02 ; C09J7/00 ; C09J7/02 ; B32B7/06 ; B32B7/12 ; B32B27/08 ; B32B27/30 ; B32B27/36 ; G06F3/041 ; G06F3/045 ; G02F1/1333

Abstract:
Provided is a novel transparent adhesive sheet with which the cut edge is not sticky over time when a laminated body that has been bonded via the adhesive sheet is cut, which can be adhered without generating residual air bubbles, even when the surface of an adherend is uneven, and which can be adhered without foaming, even when the adherend is a material such as plastic that can generate outgas. Suggested is an adhesive sheet that has one or more layers of a first adhesive layer and one or more layer of a second adhesive layer that exhibit different viscoelastic behaviors, and has an integrated structure whereby these layers are laminated, with a dynamic shear storage modulus G′ of 2×104 to 5×105 Pa for G′(20° C.) and 1×104 to 1×105 Pa for G′(150° C.) when measured with a 1 Hz frequency temperature dispersion.
Public/Granted literature
- US20140044908A1 TRANSPARENT ADHESIVE SHEET AND IMAGE DISPLAY DEVICE Public/Granted day:2014-02-13
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