| abstract |
Provided is a copolymer for an antifouling coating composition capable of exhibiting a good long-term antifouling performance even in a bay in which contaminant organisms are attached very severely and capable of forming an antifouling coating film excellent in seawater resistance. According to the present invention, as an antifouling coating composition containing a copolymer P and an antifouling agent, the copolymer P is a monomer (a), a monomer (b), a monomer (c), and the monomers (a) to (c) ) Is a copolymer with an ethylenically unsaturated monomer (d), wherein the monomer (a) is represented by the general formula (1), and the content of the monomer (a) is the total mass of the monomers (a) to (d) And the monomers (b) and (c) are monomers having a commercial log P of the partition coefficient P between n-octanol/water, respectively, 0.00 to 0.59 and 0.60 to 0.95, and the monomers (c) provides an antifouling coating composition, which is a monomer having only one unsaturated bond. [Tue 1] (In the formula, R 1 is a methyl group, R 2 , R 3 , and R 4 are the same or different, respectively, and represent a branched alkyl group or a phenyl group having 3 to 8 carbon atoms.) |