AQUEOUS COATING COMPOSITION AND MULTILAYERED COATING FILM FORMATION METHOD

An object of the present invention is to provide an aqueous coating composition that exhibits a small change in viscosity and can form a coating film having a superior coating film appearance even when the amount of a solvent contained in the aqueous coating composition decreases due to the change of the coating environment. The present invention provides an aqueous coating composition containing a polyurethane resin dispersion (A) and a melamine resin (B), wherein the melamine resin (B) contains a hydrophobic melamine resin, and the polyurethane resin constituting the polyurethane resin dispersion (A) has a viscosity in a range of 101 to 150,000 Pa·s measured at a temperature of 25° C. and a shear rate of 0.1 sec?1.


» Number: US2023103602A1 (A1)

» Publication Date: 06/04/2023

» Applicant: NIPPON PAINT AUTOMOTIVE COATINGS CO LTD?[JP]

» Inventor: SEKINE KAZUKI?[JP]; OHTONARI MASATOSHI?[JP]

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This project has received funding from the European Union's Horizon 2020 research and innovation programme under grant agreement Nº 768737


                   




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