| abstract |
An adhesive sheet includes a substrate and an energy ray curable adhesive layer formed thereon The energy ray curable adhesive layer includes an acrylic adhesive polymer having a weight average molecular weight of not less than 100,000, and a polymerizable group is bonded to the acrylic adhesive polymer through a polyalkyleneoxy group. The energy ray curable adhesive sheet improves the breaking elongation and the expandability of the cured adhesives, thereby preventing the glue residue on the adherend of the sheet after release. |