An anti-rust composition for metal surface and a method of anti-rust treatment on metal surface

• Main Authors: WAN, Sheng Xing, ZOU, Hai Xia
• Format: Patent
• Language: English
• Published: 19.08.2021
• Subjects: ADHESIVES; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; COMPOSITIONS BASED THEREON; CORRECTING FLUIDS; DYES; FILLING PASTES; INKS; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; POLISHES; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; USE OF MATERIALS THEREFOR; WOODSTAINS

This invention provides an anti-rust composition for metal surfaces comprising: a). 30% to 80% by weight of water-soluble or water-dispersible acrylic resin and/or urethane resin; b). 0.1% to 10% by weight of epoxysilane and/or vinylsilane; c). 0.1% to 3% by weight of silicone surfactant and/or fluorosurfactant; d). 0.1% to 10% by weight of alcohol and/or ether; and e). water, and the weight percentage of each component is based on the total weight of the aqueous composition. And this invention also provides an anti-rust treatment method on metal surfaces comprising steps of i). coating the invented anti-rust composition onto the metal surfaces and ii). dry the coating layer at temperature from 60°C to 150°C. Moreover, this invention also provides an anti-rust treated coil steel obtained by the invented anti-rust treatment method.