| abstract |
It is possible to form a coating film excellent in coating film hardness and coating film properties and having a degree of consumption suitable for expressing a long-term antifouling effect, and to reduce the content of volatile organic compounds without too high viscosity. The present invention provides an antifouling coating composition that can be used, and a polymer-containing composition suitable for obtaining the antifouling coating composition. The said polymer containing composition contains the (meth) acrylic-type copolymer (A-1), and the said (meth) acrylic-type copolymer (A-1) is a carboxy ion-bonded with the bivalent metal atom. Containing a structural unit (U11) or a structural unit (U12) having a rate, and having a weight average molecular weight of 1000 to 5000, and the coating hardness (Martens hardness) of the polymer-containing composition is 2.5 N / mm 2 or more. |