| abstract |
(57) [Problem] To provide a photocurable composition having a low curing shrinkage ratio and excellent in adhesiveness, curability and storage stability. (A) (Meth) acrylate oligomer, (B) A photocurable composition comprising, as essential components, a (meth) acrylate other than the component (A), a photopolymerization initiator (C), and (D) spherical silica particles having an average particle diameter of 0.1 to 50 μm. The preferred component A) is a urethane (meth) acrylate oligomer, the content of the preferred component (D) is 40 to 85% by mass, and the specific surface area of the preferred component (D) is 100 m 2 / g or less. The preferred composition further contains fumed silica fine particles or / and crushed silica particles. |