COMPOSITION FOR POWDER COATING Russian patent published in 2012 - IPC C09D5/03 C09D167/00 C09D133/06 

FIELD: metallurgy.

SUBSTANCE: invention relates to a composition for powder coating, which provides a special effect of the presence of metal on the substrate surface, as well as to a method for coating substrates for indoor and outdoor applications in the fields of architecture and industry. The composition contains well-mixed components (A), (B) and (C). Component (A) comprises 60-99 wt % of a mixture consisting of at least one polyester resin and at least one (meth)acrylate resin. Component (B) comprises 0-30 wt % of at least one crosslinking agent. Component (C) consists of 0.01-40 wt % of at least one pigment. Components (A), (B) and (C) are selected so that the composition provides the low dullness of curable coating in the range from 1 to 20 gloss units when considering the coating at an angle of 60° according to standard DIN 67530 (ISO2813). Simultaneously, the surface structure of the curable coating should have a value of the integral coefficient 1 of over 8.00 E+00, measured by Fourier analysis for mechanical profilometry.

EFFECT: composition for powder coating enables the formation of the desired special effect of the presence of metal on the covered surface, which corresponds to the effect of the presence of metal obtained from the use of anodised aluminium.

11 cl, 2 dwg, 1 tbl, 2 ex