Abstract: Provided is the following as an adhesive sheet having excellent flexibility at low temperature and excellent recovering ability. An adhesive sheet formed from an adhesive composition [I]containing an acrylic polymer (A), wherein the acrylic polymer (A) has a structural portion derived from a compound (a1) represented by (Formula 1) and a structural portion derived from a hydroxy group-containing (meth)acrylate (a2), and the adhesive sheet has a storage shearing elastic modulus (G?) at ?40° C. of not greater than 1,200 kPa, CH2?CH(R1)—COO(R2)??(Formula 1) wherein R1 represents a hydrogen atom or a methyl group, and R2 represents a linear or branched alkyl group having 5 to 20 carbon atoms.

Abstract: Provided is a flexible image display device member having a configuration in which two flexible members are adhered together via a novel adhesive layer that can firmly adhere to highly polar member sheets, and has excellent bendability, wherein the adhesive layer has a maximum value of a loss tangent (tan ?) obtained by dynamic viscoelasticity measurement in a shear mode at a frequency of 1 Hz being at ?20° C. or lower, and in the Hansen solubility parameters (?d, ?p, and ?h) on the adhesive layer surface as measured by a contact angle method, the polar term ?p is 2.0 MPa0.5 or more and the hydrogen bond term ?h is 5.0 MPa0.5 or more.

Abstract: Provided is a flexible image display device member including an adhesive layer which enables, during a folding operation of a layered sheet having a configuration in which a member sheet and an adhesive sheet are layered in a high-temperature environment, a good restoration property when the layered sheet is unfolded from a folded state. The flexible image display device member has a configuration in which two flexible members are bonded together via the adhesive layer, and the adhesive layer satisfies requirements (1) and (2). (1) A storage shear modulus at 60° C. (G? (60° C.)) obtained by dynamic viscoelasticity measurement in a shear mode at a frequency of 1 Hz is 0.005 MPa or more and less than 0.20 MPa, and a loss tangent at 60° C. (tan ? (60° C.)) is less than 0.60.

Abstract: Provided is an adhesive sheet having photocurability, in particular, a photocurable adhesive sheet capable of suppressing corrosion of a conductive member comprising a silver-containing metal material after being bonded to the conductive member and photocured. Provided is an adhesive sheet for a conductive member, comprising an adhesive agent layer containing a (meth)acrylic acid ester (co)polymer, a photoinitiator which generates radicals upon receiving light, and a metal corrosion inhibitor having an absorption coefficient at 365 nm of 20 mL/g·cm or less, wherein the (meth)acrylic acid ester (co)polymer is a (co)polymer containing no carboxyl group-containing monomers.