| 摘要 |
PROBLEM TO BE SOLVED: To provide an active energy ray-curable composition that can give a cured product having excellent stretching property and strength.SOLUTION: The active energy ray-curable composition comprises a polymerizable compound. When a coating film having an average thickness of 10 μm is formed using the above active energy ray-curable composition on a polycarbonate substrate (having a thickness of 100 μm) and irradiated with active energy rays having luminous energy of 1,500 mJ/cm, and these processes are repeated three times to obtain a three-layer cured product, the obtained cured product satisfies the following conditions (1) and (2). (1) When the cured product with the substrate is stretched by use of a tension test machine at a tensile speed of 20 mm/min at 180°C, the stretching property of the cured product defined by (length after the tension test)/(length before the tension test) is 1.1 or more. (2) The cured product has a glass transition temperature of 50°C or higher.SELECTED DRAWING: None |
