PROBLEM TO BE SOLVED: To provide a curable composition which little forms unpolymerized layers on a surface in an oxygen-existing environment without an oxygen-blocking material, and can stably be stored even in a refrigerator.SOLUTION: This curable composition comprises (A) 100 parts by mass of a radically polymerizable monomer, preferably a (meth)acrylic radically polymerizable monomer having a water absorbing capacity of not larger than 20% by weight, (B) 0.5 to 10 parts by mass of water, (C) 0.1 to 20 parts by mass of an anionic surfactant, preferably an alkyl sulfate, an alkyl benzene sulfonate, or an alkylsulfonate, (D) 0.1 to 10 parts by mass of a nonionic surfactant, and an effective amount of a polymerization initiator.COPYRIGHT: (C)2007,JPO&INPIT【課題】 酸素の存在する環境下で、酸素遮断材を用いなくても、表面未重合層のほとんど生じない、更に冷蔵においても安定に保存可能な硬化性組成物を提供すること。【解決手段】 (A)ラジカル重合性単量体、好適には吸水度が20wt%以下の(メタ)アクリル系のラジカル重合性単量体100質量部、(B)水0.5~10質量部、(C)アニオン性界面活性剤、好適にはアルキル硫酸塩、アルキルベンゼンスルホン酸塩、またはアルキルスルホン酸塩0.1~10質量部、(D)ノニオン性界面活性剤0.1~10質量部、及び有効量の重合開始剤を含んでなる硬化性組成物。【選択図】 なし
