US 12,305,076 B2
Electrodepositable coating compositions
David A. Stone, Allison Park, PA (US); Egle Puodziukynaite, Allison Park, PA (US); James C. Serene, Lower Burrell, PA (US); Craig A. Wilson, Allison Park, PA (US); Yves Le Disert, Saint-Saulve (FR); and Marissa E. Mcgovern, Valencia, PA (US)
Assigned to PPG Industries Ohio, Inc., Cleveland, OH (US)
Appl. No. 17/753,454
Filed by PPG Industries Ohio, Inc., Cleveland, OH (US)
PCT Filed Sep. 4, 2020, PCT No. PCT/US2020/049419
§ 371(c)(1), (2) Date Mar. 4, 2022,
PCT Pub. No. WO2021/046358, PCT Pub. Date Mar. 11, 2021.
Claims priority of provisional application 62/896,609, filed on Sep. 6, 2019.
Prior Publication US 2022/0363917 A1, Nov. 17, 2022
Int. Cl. C09D 5/44 (2006.01); C25D 13/04 (2006.01)
CPC C09D 5/4465 (2013.01) [C09D 5/4473 (2013.01); C25D 13/04 (2013.01)] 24 Claims
 
1. An electrodepositable coating composition comprising:
(a) a single-stage acrylic polymer comprising 70% to 100% by weight of constitutional units comprising the residue of a hydroxyl-functional (meth) acrylate monomer and/or a hydroxyl-functional (meth) acrylamide monomer, based on the total weight of the acrylic polymer; and
(b) an ionic salt group-containing film-forming polymer different from the acrylic polymer;
wherein the acrylic polymer is substantially free of constitutional units comprising the residue of a polymeric dispersant.