Double-sided adhesive layer-equipped optical laminate

An optical laminate with pressure-sensitive adhesive layers on both surfaces, comprising:

• a first substrate;
• a first low-refractive index layer formed on the first substrate;
• a first pressure-sensitive adhesive layer arranged so as to be adjacent to the first low-refractive index layer;
• a second low-refractive index layer arranged so as to be adjacent to the first pressure-sensitive adhesive layer;
• a second substrate having formed thereon the second low-refractive index layer;
• and
• a second pressure-sensitive adhesive layer and a third pressure-sensitive adhesive layer serving as outermost layers,
• wherein the first low-refractive index layer and the second low-refractive index layer each have a porosity of 50% or more and a refractive index of from 1.01 to 1.30, and each are formed of one or a plurality of kinds of constituent units each forming a fine pore structure, and the constituent units are chemically bonded to each other through a catalytic action,
• wherein the first pressure-sensitive adhesive layer has a storage modulus of elasticity of from 1.3×105 (Pa) to 1.0×107 (Pa), and a pressure-sensitive adhesive for forming the first pressure-sensitive adhesive comprises a (meth)acrylic polymer as a base polymer, and a monomer for forming the (meth)acrylic polymer comprises a heterocycle-containing (meth)acrylate, and
• wherein the second pressure-sensitive adhesive layer and the third pressure-sensitive adhesive layer each have a storage modulus of elasticity of 1.0×105 (Pa) or less.