Patent ID: 8702896

Claim:
A process for thermally activating a heat-sensitive adhesive material, comprising the step of: bringing a heating unit into contact with a heat-sensitive adhesive layer of the heat-sensitive adhesive material to thereby thermally activate the heat-sensitive adhesive layer, the heat-sensitive adhesive material comprising: a substrate; and the heat-sensitive adhesive layer comprising a thermoplastic resin and a solid plasticizer, and being so configured as to be heated and applied to an adherend, wherein the heat-sensitive adhesive material exhibits such an adhesive strength to the adherend as to increase with time from immediately after applying the heat-sensitive adhesive material to the adherend, wherein the solid plasticizer comprises at least two different benzotriazole derivatives, one of which is a compound represented by following Formula (I): and wherein the mass ratio of one of the two different benzotriazole derivatives to the other is 9/1 to 1/9.