COATING COMPOSITION Russian patent published in 2009 - IPC C23C22/34 C09D5/08 

FIELD: chemistry.

SUBSTANCE: invention relates to compositions for coating base metals, to coating obtained from the said compositions, as well as to the method of obtaining the said compositions. The coating composition contains an aqueous mixture, containing particles, stable towards acids, and one or several fluoro-acids, where content of particles stable towards acids ranges from 0.005 to 8 wt % in terms of dry mass. The base metal coating contains particles, stable towards acids, attached to the base by a metal oxide matrix. Specific density of the base metal coating ranges from 5 to 50 mg/ ft² (53.82 - 538.2 mg/m²). The method of producing the composition involves production of particles stable towards acids and one or several fluoro-acids, mixture of the said particles stable towards acids and one or several fluoro-acids in water, where pH of the coating composition ranges from 2 to 7, and content of particles stable towards acids in the coating composition ranges from 0.005 to 8 wt % in terms of dry mass.

EFFECT: invention allows for production of coating compositions, which significantly reduce the level corrosion of objects, containing several base metals.

40 cl, 3 dwg, 7 tbl, 20 ex