| 摘要 |
PROBLEM TO BE SOLVED: To provide a water dispersion type adhesive composition which enables an adhesive to be formed, the adhesive satisfying both impact resistance and repulsion resistance at a high level.SOLUTION: There are provided water dispersion type compositions 21 and 22 including aqueous solvents, emulsifiers, and polymer particles. The polymer particles include particles of a core-shell structure where an acrylic polymer is contained in at least one of the core or the shell, and a glass transition temperature of a polymer constituting the core is higher by 80°C or more than a temperature being equal to or less than the glass transition temperature of a polymer constituting the shell-55°C. A content of the emulsifiers in the adhesive compositions is less than 3.5 pts.mass relative to 100 pts.mass of the polymer particles. The adhesive compositions have an average particle diameter of less than 0.3 μm as measured by a laser diffraction scattering method. |
