MULTILAYER PRE-CROSSLINKED STRUCTURAL ADHESIVE TAPE

According to one aspect, the present disclosure relates to a multilayer structural adhesive tape, comprising(iii) at least one first adhesive layer (A), comprising (a) a thermally curable adhesive composition, (b) a thermal curing initiator for the thermally curable resin, (c) a polymeric material comprising the self-polymerization reaction product of a polymerizable material comprising a radiation self-polymerizable multi-functional compound, (d) optionally, some residual free-radical polymerization initiator for the radiation self-polymerizable multi-functional compound;(iv) at least one second adhesive layer (B), comprising (a) a thermally curable adhesive composition, (b) a thermal curing initiator for the thermally curable resin, (c) a polymeric material comprising the self-polymerization reaction product of a polymerizable material comprising a radiation self-polymerizable multi-functional compound, (d) optionally, some residual free-radical polymerization initiator for the radiation self-polymerizable multi-functional compound;whereinthe thermally curable resins in the at least one first adhesive layer (A) and in the at least one second adhesive layer (B) are uncured and are in particular embedded into the polymeric material comprising the self-polymerization reaction product of a polymerizable material comprising a radiation self-polymerizable multi-functional compound;wherein the self-polymerization of the polymerizable material comprising a radiation self-polymerizable multi-functional compound was effectuated by irradiation of a free-radical polymerization initiator for the radiation self-polymerizable multi-functional compound with light;wherein the at least first adhesive layer (A) is different from the at least one second adhesive layer (B).