| abstract |
(57) [Summary] [Problem] Even after long-term immersion, there is no formation of a residual layer on the coating film surface, and there is no defect such as cracking or peeling in the coating film physical properties, and the coating film consumability changes with time. It is able to demonstrate the marine organism adhesion prevention performance over a long period of time, In addition, the present invention provides a coating composition having good recoverability and performance for preventing marine organisms from being adhered to during the outfitting period. SOLUTION: A) one or two or more rosin compounds comprising a rosin, a rosin derivative or a rosin metal salt, and B) three alkyl groups or aryl groups (R 1 to R 1) 3 ) at least one of a monomer M having a triorganosilyl group having at least 3 carbon atoms and a polymerizable monomer other than the monomer M essentially containing acrylic acid or methacrylic acid; A coating composition comprising, as essential components, an organic silyl ester group-containing polymer comprising a copolymer and C) an antifouling agent. |