The active energy ray-curable composition and the cured product

PROBLEM TO BE SOLVED: To provide an active energy ray-curable composition expressing crack resistance without degrading excoriation resistance and capable of obtaining cured products excellent in externals and adhesion within a short time. SOLUTION: The active energy ray-curable composition comprises (A) a siloxane compound obtained by hydrolyzing condensation of a specific alkyl silicate and a specific organosilane, (B) an active energy ray reactive cationic polymerization initiator, and (C) an organic compound having ≥2 hydroxy, wherein the organic compound having ≥2 hydroxy is preferably a polyalkylene glycol having ≥500 weight-average molecular weight or a hydroxy-containing (meth)acrylic polymer. COPYRIGHT: (C)2007,JPO&INPIT