Providing the adhesive which can satisfy | fill adhesive performance and can implement the adhesive layer which has high level | step difference absorptivity. Radical polymerization containing the (meth) acrylic-type polymer obtained by superposing | polymerizing the monomer component containing 30 to 90 weight% of the alkyl (meth) acrylate which has a C10-C22 alkyl group at an ester terminal, and also has a carbon-carbon double bond Radiation curable adhesive which has a functional group.
展开▼
