| 摘要 |
Provided is a layered product comprising an anti-reflection film that has a surface to which a protective film having excellent temporary adhesiveness and being less likely to leave residual adhesive after being peeled off is attached. The disclosed layered product includes an anti-reflection film and a protective film attached on the anti-reflection film. The surface of the anti-reflection film has a multitude of projections, the width between the vertices of adjacent projections being shorter than or equal to visible-light wavelengths. The protective film includes a support film and an adhesive layer that is in contact with the anti-reflection film. The adhesive layer is made of an adhesive prepared by cross-linking, with an epoxy cross-linking agent, a copolymer obtained by polymerizing monomer components which essentially include: an alkyl (meth)acrylate in which the alkyl group has 4 or less carbon atoms; and a carboxyl-group-containing monomer. The weight-average molecular weight of the copolymer is from 1,000,000 to 2,000,000. Of the monomer components in the copolymer, the alkyl (meth)acrylate, in which the alkyl group has 4 or less carbon atoms, has the largest weight proportion. The acid value of the copolymer is from 16 mgKOH/g to 120 mgKOH/g. The amount of the epoxy cross-linking agent mixed to 100 parts by weight of the copolymer is 1.5 parts by weight or greater. |
