BINDER LAYER AND ADHESIVE FILM

PROBLEM TO BE SOLVED: To provide ana adhesive layer and an adhesive film, even if being used for the layer-pasting of an optical member, combining durability and reworkability without causing an error in the measured value of the surface hardness of a laminated body pasted with the optical member.SOLUTION: In an acrylic polymer not including a carboxyl group-containing copolymerizable vinyl monomer, containing butyl acrylate at least by 40 parts by weight or more, copolymerized with (meth)acrylic monomers as the main component by the total of 100 parts by weight and hydroxyl group-containing copolymerizable vinyl monomers by 0.1 to 10 pts.wt, and having an acidic value of 0.1 or lower and the weight average molecular weight of 1,000,000 or more is cross-linked with an isocyanate compound of 0.01 to 1.0 parts by weight as a cross-linking agent, after that, via an adhesive agent layer having a gel fraction of 40 to...