| abstract |
PROBLEM TO BE SOLVED: To provide a heat-peelable pressure-sensitive adhesive tape / sheet which has good basic adhesive properties such as initial adhesive strength and holding power and can be easily peeled off from an adherend by heat treatment, and a method for producing the same. To do. SOLUTION: On one or both sides of a substrate, a (meth) acrylic acid alkyl ester monomer, a polar group-containing monomer, An acrylic high molecular weight material having an active functional group, and a photopolymerization initiator and a photocurable pressure-sensitive adhesive as a main component, and a non-solvent type photocurable pressure-sensitive adhesive to which foaming agent particles are added is applied. In the heat-peelable pressure-sensitive adhesive tape sheet, the acrylic high molecular weight having an active functional group and an acrylic high molecular weight having a functional group that reacts with a radical active species to crosslink, In addition, the foaming agent particles are compounds that release nitrogen gas by heating and generate radical active species at the same time. |