A thermoset pressure-sensitive adhesive containing a tacky polymer, polyvinyl acetal, an epoxy resin, and an epoxy resin curing agent. The tacky polymer is obtained by copolymerizing a first monomer constituted by at least one type of (meth)acrylate ester of a non-tertiary non-cyclic alcohol having 8 to 12 carbon atoms and including one (meth)acryloyl group, a second monomer comprising a nitrogen atom and an ethylenically unsaturated group, and more than 0 parts by mass to no more than about 0.5 parts by mass of a crosslinking agent per a total of 100 parts by mass of the first monomer and the second monomer.

Layered constructions, such as those used in pressure sensitive adhesive constructions and release liner constructions, are disclosed having a functional layer that is capable of removal. Methods of utilizing the layered constructions are also disclosed.

Layered constructions, such as those used in pressure sensitive adhesive constructions and release liner constructions, are disclosed having a functional layer that is capable of removal. Methods of utilizing the layered constructions are also disclosed.