Patent ID: 8845858
Filing Date: 2014-09-30
Classification: B32B,C09J,Y10T

Abstract:
1. A method for separating bonded parts said bonded parts being formed by bonding two substrates to each other using an adhesive composition comprising one or more types of (meth)acrylate having at least one (meth)acryloyl groups, and curing said adhesive composition, and said at least one substrates being transparent to excimer light, comprising: a step of irradiating said bonded parts with excimer light of a center wavelength of 1 to 300 nm, wherein said (meth)acrylate is selected from a group consisted of isobornyl (meth)acrylate; 2-hydroxyethyl (meth)acrylate; dicyclopentenyloxyethyl (meth)acrylate; and an (meth)acrylate oligomer with a main-chain backbone of at least one selected from a group consisted of polybutadiene and hydrogenated polybutadiene, having at least one (meth)acryoyl groups, and the number average molecular weight of 500 to 5000.