MULTILAYER ANTIFOULING COATING, MULTILAYER ANTIFOULING COATING-EQUIPPED SUBSTRATE AND METHOD FOR PRODUCING SAME, COATING MATERIAL KIT FOR FORMING MULTILAYER ANTIFOULING COATING, TOP-LAYER ANTIFOULING COATING MATERIAL COMPOSITION, AND ANTIFOULING METHOD

摘要

A multilayer antifouling coating obtained by layering an underlayer antifouling coating (X) and a top-layer antifouling coating (Y), wherein the underlayer antifouling coating (X) contains a polymer (B1) and an organic antifouling agent (C1), the polymer (B1) is a polymer having a constituent unit derived from a monomer having an unsaturated double bond, and the top-layer antifouling coating (Y) contains a hydrolyzable polymer (A2).