US 12,496,613 B2
Coating compositions and related methods
Shih-Wa Wang, Glen Mills, PA (US); Petra Stoffel, Cologne (DE); Michael S. Wolfe, Wilmington, DE (US); Matthias Baltrusch, Nordrhein-Westfalen (DE); and Michael R. Koerner, Media, PA (US)
Assigned to AXALTA COATING SYSTEMS IP CO., LLC, Wilmington, DE (US)
Filed by AXALTA COATING SYSTEMS IP CO., LLC, Wilmington, DE (US)
Filed on Mar. 11, 2024, as Appl. No. 18/601,911.
Claims priority of provisional application 63/489,694, filed on Mar. 10, 2023.
Prior Publication US 2024/0299974 A1, Sep. 12, 2024
Int. Cl. B05D 1/02 (2006.01); B05D 7/00 (2006.01); C09D 7/43 (2018.01)
CPC B05D 1/02 (2013.01) [B05D 7/532 (2013.01); C09D 7/43 (2018.01); B05D 2401/20 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method of preparing a coated article, the method comprising:
providing a substrate bearing a partially-dehydrated aqueous coating layer thereon;
providing a coating composition for overspray-free application, the coating composition being a waterborne fluid that exhibits a near-Newtonian viscosity profile and a shear viscosity of less than 500 mPa*s at all shear rates from 0.1/s to 10/s, and comprises water, a binder, a crosslinker, and a thickener;
providing the coating composition to a high transfer efficiency applicator, the high transfer efficiency applicator comprising a plurality of nozzles each being configured to apply a stream of the coating composition to the substrate substantially without atomization; and
applying the coating composition to the substrate with the high transfer efficiency applicator via disposing a plurality of lines of the coating composition onto the partially-dehydrated aqueous coating layer of the substrate via the plurality of nozzles, thereby forming an overspray free coating layer thereon.