COATING ON METAL Russian patent published in 1995 - IPC

FIELD: production of antiadhesive coatings. SUBSTANCE: proposed coating contains ground layer and decorative layer. Said ground layer contains (%): homopolymer or copolymer of tetraflorethylene and perflormonomer 25-45, surface active substance 4-8, amine salt of polyamide acid 3-7, inorganic pigment 2-6, carboxymethyl cellulose and polyvinyl alcohol or copolymer of butyl acrylate with phenylacrylic acid 1-3, glycerin 1-2, water the rest. Mentioned above decorative layer contains (%): homopolymer or copolymer of tetraflorethylene and perflormonomer 30-55, surface active substance 3-8, inorganic pigment 1-7, carboxymethyl cellulose and polyvinyl alcohol or copolymer of butyl acrylate with methyl acrylate and phenylacrylic acid 1-5, glycerin 1-3, water the rest. Mentioned above ground layer is applied on the surface of metal and then it is dried. The process is followed by applying of decorative layer. Thus prepared coating is dried and is affected by heat treatment at 410 C. Thickness of desired coating is 25-35 μm, its wear resistance is 200 cycles 10^-5. EFFECT: improves quality of coating. 3 tbl