| abstract |
(57) [Summary] [PROBLEMS] To provide a sealant containing a hydrolyzable silicon functional group-containing organic polymer as a main component, having good storage stability and excellent surface properties. [Structure] (1) Reactive silicon group-containing organic polymer, A curable composition comprising a photocurable compound and a tertiary amine-containing hindered amine light stabilizer as essential components. Preferably, (2) the main chain of the reactive silicon group-containing organic polymer is substantially a polyoxyalkylene polymer, and more preferably (3) the photocurable compound is an acrylic and / or methacrylic group-containing oligomer. The curable composition according to (1). |