| 摘要 |
<p>Disclosed is an acrylic adhesive that features superior durability and light leakage prevention, even under harsh ambient use conditions. Said acrylic adhesive contains constituents (A) through (C): (A) an acrylic polymer obtained by copolymerizing the following monomers: (a-1) a (meth)acrylic acid ester, (a-2) a monomer containing an aromatic ring, and (a-3) a monomer containing a functional group, wherein the content of the monomer (a-2) is 3-50% by mass with respect to the total quantity of the monomers (a-1) and (a-2), (B) a polyfunctional isocyanate compound (C) an aromatic ring-containing spacer compound with an isocyanate group-reactive functional group, wherein the equivalence ratio of the isocyanate group-reactive functional groups in constituent (C) with respect to the isocyanate groups in constituent (B) is 0.01-0.60, and the photoelastic coefficient of the adhesive layer formed thereby is not less than 100 × 10-12 m2/N and not more than 1000 × 10-12 m2/N.</p> |
