| abstract |
Provided is a pressure-sensitive adhesive sheet formed of at least three layers, including a backing layer (A), a first pressure-sensitive adhesive layer (B1), and a second pressure-sensitive adhesive layer (B2) in the stated order, in which the pressure-sensitive adhesive sheet has high interlayer adhesiveness. Specifically provided is a first pressure-sensitive adhesive sheet, which is a pressure-sensitive adhesive sheet formed of at least three layers, including a backing layer (A), a first pressure-sensitive adhesive layer (B1), and a second pressure-sensitive adhesive layer (B2) in the stated order, in which: the backing layer (A) contains a thermoplastic resin; the first pressure-sensitive adhesive layer (B1) contains at least one kind selected from an α-olefin-based thermoplastic elastomer and a styrene-based thermoplastic elastomer; and the second pressure-sensitive adhesive layer (B2) contains an acrylic block copolymer containing an acrylic acid ester block structure and a methacrylic acid ester block structure. |