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1. (WO2017033236) PRESSURE-SENSITIVE ADHESIVE COMPOSITION, PRESSURE-SENSITIVE ADHESIVE SHEET, AND TOUCH PANEL AND DISPLAY DEVICE BOTH INCLUDING PRESSURE-SENSITIVE ADHESIVE SHEET

Pub. No.:    WO/2017/033236    International Application No.:    PCT/JP2015/073599
Publication Date: Fri Mar 03 00:59:59 CET 2017 International Filing Date: Sat Aug 22 01:59:59 CEST 2015
IPC: C09J 133/08
C09J 4/02
C09J 7/02
G06F 3/041
Applicants: GUNZE LIMITED
グンゼ株式会社
Inventors: OCHI Genki
越智 元気
TSUKAMOTO Shusuke
塚本 修亮
Title: PRESSURE-SENSITIVE ADHESIVE COMPOSITION, PRESSURE-SENSITIVE ADHESIVE SHEET, AND TOUCH PANEL AND DISPLAY DEVICE BOTH INCLUDING PRESSURE-SENSITIVE ADHESIVE SHEET
Abstract:
Provided are: a pressure-sensitive adhesive composition which has excellent conformability to ruggedness at the time of bonding to adherends and which after the bonding, can be inhibited from suffering delayed bubbles, lifting, or peeling; and a pressure-sensitive adhesive sheet which includes a pressure-sensitive adhesive layer comprising the pressure-sensitive adhesive composition. Also provided are a touch panel and a display device which include the pressure-sensitive adhesive sheet and can be effectively inhibited from suffering delayed bubbles, etc. after bonding. The pressure-sensitive adhesive composition comprises an acrylic ester copolymer having a crosslinkable functional group, an oligomer having two or more polymerizable unsaturated groups, a monomer having both a functional group reacting with the acrylic ester copolymer and a functional group reacting with the oligomer, a crosslinking agent which reacts with the acrylic ester copolymer by the action of heat, and a polymerization initiator for initiating the polymerization reaction upon irradiation with actinic rays.