| abstract |
(57) [Summary] [Structure] For example, a polyurethane resin having an acid group represented by, for example, a carboxyl group, a phosphorus atom-containing group, or a sulfur atom-containing group, and among others, having these acid groups at the ends of the main chain. A resin composition for antifouling paint, which comprises a polyurethane resin as an essential film-forming component. [Effect] Since the resin having the function of gradually dissolving in seawater is used, the antifouling agent compounded in the paint can be stably eluted over a long period of time. In addition, it provides a coating film which is strong and can maintain appropriate water solubility. |