Patent ID: 7727811
Filing Date: 2010-06-01
Classification: C08L,C09J,H01L,Y10T

Abstract:
1. A pressure-sensitive adhesive sheet, which comprises: a base material; and a pressure-sensitive adhesive layer which is polymerizable and curable by an energy ray, said pressure-sensitive adhesive layer being disposed on a surface of the base material, wherein the pressure-sensitive adhesive layer comprises: an acrylic polymer, a multifunctional acrylate oligomer which has an energy-ray polymerizable carbon-carbon double bond and has a molecular weight of 1000 to 2500, and a multifunctional acrylate compound which has an energy-ray polymerizable carbon-carbon double bond and has a molecular weight of 200 to 700, wherein said multifunctional acrylate oligomer is contained in an amount of 60 to 130 parts by weight, and said multifunctional acrylate compound is contained in an amount of 3 to 50 parts by weight, with respect to 100 parts by weight of the acrylic polymer.