Patent · US Active

Polycarboxylic acid-containing aqueous coating agent having an improved effect pigment alignment

US12234372B2 · kind B2 · utility

0Cited by

5References

16Claims

0Family size

Assignee

BASF COATINGS GMBH · DE

Inventors

Andreas Poppe · Clüversborstel, DE
Katrin Deller · Kohlenbissen, DE
Klaus Eikelmann · Würzburg, DE
Dominik Stoll · Munster, DE

Key dates

Filing date	Jan 13, 2020
Grant date	Feb 25, 2025
Priority date	—
Expiry date	Feb 22, 2042

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08K2003/0812
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

Described herein are an aqueous coating composition including at least one anionically stabilized binder, effect pigment, polycarboxylic acid, and solvent, and a method for producing a multicoat paint system by producing a basecoat directly on a substrate, producing a clearcoat directly on the basecoat, and then jointly curing the basecoat and the clearcoat. At least one of the basecoat materials includes the aqueous coating. Also described herein are multicoat paint system obtainable by this method, and the use of at least one polycarboxylic acid in an aqueous coating composition for improving the effect pigment orientation, or for color matching.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.