| 摘要 |
PROBLEM TO BE SOLVED: To provide an active energy ray-curable adhesive and a pressure-sensitive adhesive having high strength and flexibility and excellent adhesiveness and retention property to various substrates and adherends.SOLUTION: An active energy ray-polymerizable adhesive composition is provided, which comprises, as essential components, a urethane polymer (A) having a thiol group on at least one terminal and an α,β-unsaturated double bond group-containing compound (B). In the active energy ray-polymerizable adhesive composition, the urethane polymer (A) is obtained by allowing a compound (D) having a thiol group and an amino group to react with a urethane prepolymer (C) having an isocyanate group at a terminal. In the active energy ray-polymerizable adhesive composition, the urethane prepolymer (C) is a urethane urea prepolymer (C-1) including a urea bond.SELECTED DRAWING: None |
