FIELD: chemistry.
SUBSTANCE: invention relates to preparation of a composition for obtaining an environmentally safe antifouling film coating which has efficient antifouling action in sea water for a long period of time and also has low dependency of the amount of the dissolved film coating on temperature. The composition for making an antifouling coating contains (A) a copolymer which contains a triorganosilyl ester obtained by mixing (a) a triorganosilyl methacrylate monomer of general formula (1), where R1, R2 and R3 are identical or different and each is an alkyl group having 3-6 carbon atoms, which branched in the α-position, or a phenyl group; and (b) a methoxyalkyl methacrylate monomer of general formula (2), where R4 is an alkylene group having 2-4 carbon atoms, wherein the content of monomer (a) in the mixture is 45-65 wt %, and total content of monomer (a) and monomer (b) in the mixture is 80 wt % or higher, and a copper salt which is at least one substance selected from a group consisting of copper salts of colophony and copper salts of colophony derivatives. The invention also relates to treatment method for imparting antifouling coating properties on the surface of an article on which a coating of said composition is applied and article having said coating.
EFFECT: film coating has excellent water resistance, hardness and high adhesion.
8 cl, 6 tbl
