US 12,460,311 B2
Lamp black pigment containing electrodeposition coating material compositions
Karl-Heinz Grosse-Brinkhaus, Münster (DE); Britta Pennekamp, Münster (DE); Sebastian Berg, Münster (DE); and Daniel Feldkamp, Münster (DE)
Assigned to BASF COATINGS GMBH, Muenster (DE)
Appl. No. 17/785,132
Filed by BASF Coatings GmbH, Münster (DE)
PCT Filed Dec. 18, 2020, PCT No. PCT/EP2020/086942
§ 371(c)(1), (2) Date Jun. 14, 2022,
PCT Pub. No. WO2021/123106, PCT Pub. Date Jun. 24, 2021.
Claims priority of application No. 19218205 (EP), filed on Dec. 19, 2019.
Prior Publication US 2022/0396892 A1, Dec. 15, 2022
Int. Cl. C25D 1/00 (2006.01); C08K 3/04 (2006.01); C09D 5/44 (2006.01)
CPC C25D 1/00 (2013.01) [C08K 3/04 (2013.01); C09D 5/4492 (2013.01); C08K 2201/003 (2013.01); C09D 5/4496 (2013.01)] 18 Claims
 
1. An aqueous cathodically depositable electrodeposition coating material composition comprising:
(a) at least one cathodically depositable polymer;
(b) at least one carbon black pigment, and
(c) at least one crosslinking agent
wherein the at least one carbon black pigment (b) is a lamp black pigment having a number-based median primary particle size (dN,50%) of at least 50 nm and at most 200 nm,
wherein the at least one crosslinking agent is a blocked isocyanate, and wherein the at least one crosslinking agent does not comprise amino resins.