| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an adhesive sheet for optical use, which has a low dielectric constant, hardly causes foaming or peeling and prevents whitening even when the sheet is left as stuck to a resin plate under high-temperature and high-humidity conditions, and shows excellent followability for a stepped portion, and to provide an optical laminate in which substrates are adhered by the adhesive sheet for optical use.SOLUTION: The adhesive sheet for optical use comprises a (meth)acrylic copolymer obtained by copolymerizing the following mixture monomer. The mixture monomer comprises: (a) a (meth)acrylate monomer having an alkyl group and/or alicyclic hydrocarbon group having 1 to 12 carbon atoms; (b) an olefin macromere selected from an ethylene-butylene random copolymer, ethylene polymer, propylene polymer, isoprene polymer and butadiene polymer, all having a (meth)acryloyl group in a molecule; and (c) a hydrophilic monomer having one (meth)acryloyl group and a hydroxyl group, and/or a polyethylene oxide chain in a molecule, in which the compounded amount of the (b) olefin macromere is 5 to 50 wt.%.</p> |
