FIELD: chemistry.
SUBSTANCE: invention relates to an anti-fouling paint composition with high content of non-volatile components used for forming an anti-fouling coating film on the surface of a base such as underwater structures, outer sides of ships, fishing nets and fishing installations. The composition contains: (A) a carboxyl group-containing copolymer which has a structural unit obtained from a monomer (a1) of an unsaturated carboxylic acid and a structural unit obtained from another monomer (a2) of an unsaturated compound which copolymerises with monomers (a1) of the unsaturated carboxylic acid, and has average molecular weight of 1000-6000, measured using gel-penetrating chromatography, (B) a polyvalent metal compound capable of reacting with the carboxyl group of copolymer (A),and (C) an anti-fouling agent, where monomer (a1) of unsaturated carboxylic acid is (meth)acrylic acid, the other monomer (a2) is an unsaturated compound which is at least one type of monomer selected from a group consisting of alkyl(meth)acrylate and styrene and the polyvalent metal compound (B) is zinc oxide.
EFFECT: anti-fouling paint composition with high content of non-volatile components enables to obtain an anti-fouling coating film which has less effect on the environment and human body and has high resistance to fouling, retains these properties and has excellent mechanical strength.
62 cl, 22 dwg, 10 tbl, 4 ex
