ACRYLIC RESIN COMPRISING REPEATING UNITS DERIVED FROM METHACRYLATE, (METH)ACRYLOYL MONOMER AND POLAR FUNCTIONAL MONOMER, ADHESIVE COMPRISING THE SAME AND OPTICAL LAMINATE COMPRISING ADHESIVE

摘要

PURPOSE: An acrylic resin, an adhesive comprising the resin and an optical laminate comprising the adhesive are provided to relieve concentrated stress of the film, to suppress light leakage of the laminate, to inhibit peeling between a film and an adhesive layer, and to suppress foaming in the adhesive layer. CONSTITUTION: The acrylic resin comprises (i) a repeating unit derived from a methacrylate of the formula (1), (ii) a repeating unit derived from a monomer having at least two (meth)acryloyl groups of the formula (2), and (iii) a repeating unit derived from a monomer containing at least one polar functional group selected from the group consisting of carboxyl, hydroxyl, amide, epoxy, formyl, oxetanyl, amino and isocyanate, and containing olefinic double bond. In the formulae, R1 and R3 are each hydrogen or methyl, and R2 is alkyl or aralkyl. Such acrylic resin is mixed with (b) at least one selected from the group consisting of a hardener and a silane-based compound to obtain an adhesive composition used in the manufacture of an optical laminate film.