| 摘要 |
<p>Discloses are a pressure-sensitive adhesive sheet, which can be used for bonding a display member and a front surface optical member, and which, under a wide range of temperature conditions, exhibits minimal stress resulting from the expansion and contraction of each member and minimal internal stress caused by residual stress during bonding, and is capable of suppressing display irregularities, as well as a material for forming the pressure-sensitive adhesive sheet. A photocurable resin composition comprising: (A) a urethane (meth)acrylate oligomer having a polyoxyalkylene structure, (B) a (meth)acrylic polymer, (C) a (meth)acrylic monomer, and (D) a photopolymerization initiator, wherein the component (A) is produced using monomer components including (a1) a polyoxyalkylene polyol, (a2) a polyisocyanate, and (a3) a hydroxyl group-containing mono(meth)acrylate compound, a relationship N (= nl/n2) between the total mass n1 of the monomer components and the total equivalent weight n2 of acryloyl groups within the all monomer components is 4,000 or greater, and the component (A) is substantially free of unreacted isocyanate groups.</p> |
