| abstract |
The present invention is capable of forming a coating film that exhibits stable solubility and good antifouling effect from the beginning in seawater, has excellent water resistance, and can effectively exhibit the antifouling effect over a long period of time. Furthermore, the present invention provides an antifouling paint composition having a low environmental impact and a small amount of volatile organic compounds (VOC) scattered in the atmosphere. [Solution] (A) a polymer having a number average molecular weight of 1,000 to 20,000, obtained by polymerizing a polymerizable unsaturated carboxylic acid triorganosilyl; (B) An antifouling coating composition containing at least one zinc salt selected from rosin zinc salts and zinc salts of rosin derivatives, (1) The weight ratio ((A) / (B)) between the content of the polymer (A) and the content of the zinc salt (B) is 45/55 to 10/90, (2) The non-volatile content is 75% by weight or more, (3) substantially free of rosin and rosin derivatives having a free carboxyl group, Antifouling paint composition. [Selection figure] None |