ADHESIVE COMPOSITION, FILMY ADHESIVE, ADHESIVE SHEET, CONNECTING STRUCTURE, AND METHOD FOR MANUFACTURING CONNECTING STRUCTURE

摘要

PROBLEM TO BE SOLVED: To provide an adhesive composition excellent in low-temperature curability and storage stability.SOLUTION: An adhesive composition contains (a) a thermoplastic resin, (b) a radical polymerizable compound, (c) a radical polymerization initiator, and (d) a salt that contains boron, wherein (d) the salt is a compound represented by formula (A) wherein R, R, Rand Rare each independently a hydrogen atom, a 1-18C alkyl group or an aryl group; and Xis a cation containing a quaternary phosphorus atom and/or a quaternary nitrogen atom.