| abstract |
An acrylic pressure-sensitive adhesive which gives a pressure-sensitivenadhesive layer having a regulate refractive index, in particular, an increased refractivenindex, and retaining almost intact satisfactory pressure-sensitive adhesive properties.nThe pressure-sensitive adhesive comprises an acrylic copolymer comprising, asncopolymerizable components, an acrylic alkyl ester containing no aromatic ring and anmonomer containing an aromatic ring, copolymerization proportion of the monomerncontaining an aromatic ring in the copolymer being from 40 to 90% by weight based onnthe weight of all monomer components. |