Pressure-sensitive adhesive composition and pressure-sensitive adhesive sheets made therefrom, and sealants, reinforcing sheets and pressure-sensitive adhesive sheets for printing produced therefrom

摘要

A pressure-sensitive adhesive composition, wherein the storage elastic modulus [G'] at room temperature is at least 2x106 dyne/cm2 and the adhesive strength at room temperature is 1 kg/20 mm width or higher. Preferably, a pressure-sensitive adhesive composition comprising a polymer having a polycarbonate structure having a repeating unit represented by the following formulawherein R represents a straight chain or branched hydrocarbon group having from 2 to 20 carbon atoms, a pressure-sensitive adhesive sheet, a sealing material, a reinforcing sheet, and a pressure-sensitive sheet for printing, each having the pressure-sensitive adhesive composition.