PRESSURE-SENSITIVE ADHESIVE COMPOSITION AND PRESSURE-SENSITIVE ADHESIVE SHEET

摘要

Provided are a pressure-sensitive adhesive composition enabling the production of a pressure-sensitive adhesive, which has excellent adhesiveness to members having various surface polarities and can exert good repulsion resistance even in a hygrothermal environment, and a pressure-sensitive adhesive sheet using said composition. The aforesaid pressure-sensitive adhesive composition comprises a copolymerization product of a monomer mixture. This monomer mixture contains an alkyl (meth)acrylate having a C4-20 alkyl group and N-vinyl caprolactam. The total amount of these monomers is equal to or greater than 95 mass% of the total monomer components. The amount of N-vinyl caprolactam is in the range of 12-40 mass%.