US 12,459,000 B2
Methods of coating a substrate
Shih-Wa Wang, Philadelphia, PA (US); Cameron Stevens, Philadelphia, PA (US); James Neal, Corvallis, OR (US); Carmen Flosbach, Wuppertal (DE); Michael S. Wolfe, Wilmington, DE (US); and John R. Moore, Lansdale, 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 Dec. 20, 2022, as Appl. No. 18/068,587.
Application 18/068,587 is a continuation in part of application No. 17/645,320, filed on Dec. 21, 2021, abandoned.
Prior Publication US 2023/0191450 A1, Jun. 22, 2023
Int. Cl. B05D 5/02 (2006.01); B05D 3/04 (2006.01); C09D 167/02 (2006.01)
CPC B05D 5/02 (2013.01) [B05D 3/0406 (2013.01); C09D 167/02 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method of coating a substrate comprising the steps of:
applying a coating composition to the substrate with an applicator to produce a coating layer, wherein the applicator comprises a print head assembly that applies the coating composition onto the substrate, wherein the applicator and the substrate remain spatially separate while applying the coating composition, wherein the print head assembly is positioned at a distance of from about 1 to about 30 millimeters from the substrate during application of the coating composition, wherein the coating composition has a viscosity of from about 1,000 to about 1,000,000 centipoise when the coating composition is subject to a shear rate of about 0.1 reciprocal second (s−1), wherein the coating composition is non-Newtonian such that a coating composition viscosity decreases when the shear rate is increased to the coating composition; and
impinging the coating layer with a gas having a laminar gas flow such that a coating layer surface moves upon impingement with the gas.
 
16. A method of coating a substrate comprising the steps of:
applying a coating composition to the substrate with an applicator to produce a coating layer, wherein the applicator and the substrate remain spatially separate by a distance of from about 1 to about 30 millimeters while applying the coating composition, wherein the coating is a paint, wherein the coating composition is non-Newtonian such that a coating composition viscosity decreases when the shear rate is increased to the coating composition; and
impinging the coating layer with a gas having a laminar gas flow such that a textured surface is formed on the coating layer, wherein the textured surface has a coating layer thickness that varies.