| abstract |
A heat-activatable, pressure-sensitive adhesive tape or sheet in which the pressure-sensitive, bonding function arises on heating, which comprises a backing material having thereon a layer of a heat-activatable, pressure-sensitve adhesive having an apparent modulus of elasticity of about 10 to 300 kg/cm2 at normal temperature, the adhesive comprising a mixture of (a) 100 parts by weight of a copolymer of (i) an alkyl acrylate ester or an alkyl methacrylate ester and (ii) a polymerizable monomer having a functional group, and (b) about 50 to 200 parts by weight of a reactive hot-melt resin that is miscible with the copolymer (a), has a melting point of about 60 DEG C. or higher, and has at least one functional group capable of reacting with the functional group of the copolymer (a), either directly or through a crosslinking agent. |