METHOD OF PRODUCING ANTIFOULING ENAMEL Russian patent published in 2010 - IPC C09D193/04 C09D5/16 

FIELD: chemistry.

SUBSTANCE: invention relates to agents for protection against algae fouling of bottoms of ships and hydraulic structures, and specifically to antifouling enamel. When realising the method, benzene sulphonic acid, cyclohexanone, a mixture of salicylic acid and salicylic acid anilide and acetone in ratio of 0.9-0.3:3.2-2.6:2.1-1.5:10.6-9.0 wt % are mixed at 18-22°C for not less than 1 hour. A copper-containing biocide - copper oxide is then added and the mixture is saturated for 25-40 minutes. The obtained mass is treated with 50-60% colophony solution in a solvent at 18-25°C, and then combined with the remaining portion of colophony, film-forming agent epoxy-ether lacquer, copolymer of vinylchloride and vinylacetate, epoxy diane resin, plasticiser - dibutylphthalate, a pigment - zinc oxide, after which the mixture is dispersed to degree of grinding of 50-70 mcm.

EFFECT: slower leaching of copper oxide and reduction of its consumption, as well as increased elasticity of the coating.

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