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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 9394465 B1

PDFFull Text
Date of Patent:
Jul. 19, 2016

Filed:

Oct. 21, 2013

Transparent adhesive sheet and image display device

Applicant:

Mitsubishi Plastics, Inc., Chiyoda-ku, JP;

Inventor:

Makoto Inenaga, Shiga, JP;

Assignee:

MITSUBISHI PLASTICS, INC., Chiyoda-ku, JP;

Attorney:

Oblon, McClelland, Maier & Neustadt, L.L.P

Primary Examiner:

Victor Chang

Int. Cl.
CPC ...
B32B 7/02 (2006.01); C09J 7/00 (2006.01); C09J 7/02 (2006.01); B32B 7/06 (2006.01); B32B 7/12 (2006.01); B32B 27/08 (2006.01); B32B 27/30 (2006.01); B32B 27/36 (2006.01); G06F 3/041 (2006.01); G06F 3/045 (2006.01); G02F 1/1333 (2006.01);
U.S. Cl.
CPC ...
C09J 7/02 (2013.01); B32B 7/02 (2013.01); B32B 7/06 (2013.01); B32B 7/12 (2013.01); B32B 27/08 (2013.01); B32B 27/30 (2013.01); B32B 27/36 (2013.01); C09J 7/00 (2013.01); G06F 3/041 (2013.01); G06F 3/045 (2013.01); B32B 2307/412 (2013.01); B32B 2457/20 (2013.01); C09J 2201/134 (2013.01); C09J 2201/36 (2013.01); C09J 2203/318 (2013.01); C09J 2433/00 (2013.01); G02F 1/13338 (2013.01); G02F 2201/50 (2013.01); G02F 2202/28 (2013.01); Y10T 428/1462 (2015.01); Y10T 428/24942 (2015.01); Y10T 428/24967 (2015.01); Y10T 428/28 (2015.01); Y10T 428/2839 (2015.01);
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 2×10to 5×10Pa for G′(20° C.) and 1×10to 1×10Pa for G′(150° C.) when measured with a 1 Hz frequency temperature dispersion.

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