HEAT-RESISTANT ENAMEL Russian patent published in 2013 - IPC C09D183/06 C09D167/08 C09D133/10 C09D5/08 

FIELD: chemistry.

SUBSTANCE: invention relates to paint materials and can be used in mechanical engineering to protect metal surfaces operating at high temperatures, in highly corrosive conditions as well as at home and in industry. The heat-resistant enamel contains organoalkoxysilane-based methyl phenyl siloxane resin of general formula: $${[Rh{-}_{n}Si{O}_{4-n}]}_a{[R_m^{\text{'}}Si{O}_{4-m}]}_b[R_k^{2}Si{O}_{4-k}]c,$$ where: n, m, k=1.2; R'=Me, H; a=0.1-33; R²=Me; b=0.03-1; c=0-0.1; as well as butyl methacrylate polymer, pentaphthalic lacquer, a heat-resistant pigment, micronised filler, a thickener, a bentonite clay-based rheologic additive and an organic solvent. The enamel enables to obtain a coating of high quality.

EFFECT: methyl phenyl siloxane resin used does not contain Cl-containing impurities, which improves environmental friendliness of the composition.

3 cl, 1 tbl