Abstract: Provided are: a photocurable composition capable of forming a sealant composed of a foam endowed with excellent elongation and excellent tensile strength by being cured while foamed; a photocurable foam composition in which gas bubbles are included in the aforementioned photocurable composition; a urethane (meth)acrylate compound that is suitably used as a component of the aforementioned photocurable composition; and a method for producing a foam using the abovementioned photocurable composition. In this photocurable composition, which contains a urethane (meth)acrylate (A) and a photopolymerization initiator (C), a urethane (meth)acrylate compound having a specific structure that includes a urethane bond, has a polyether chain having a molecular weight within a specific range in the center, and has (meh) acryloyloxy groups at both ends of a linear polyether chain is used as the urethane (meth)acrylate (A).

Abstract: A curable composition used to produce a polyurethane foam comprises an isocyanate group-containing urethane pre-polymer (I) having an oxyalkylene ether skeleton and no siloxane skeleton, and an isocyanate group-containing urethane pre-polymer (II) having a siloxane skeleton and an oxyalkylene ether skeleton.