Patent · US Active

Use of low-molecular carboxylic acids in aqueous base coats

US11123764B2 · kind B2 · utility

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0References

14Claims

0Family size

Assignee

BASF COATINGS GMBH · DE

Inventors

Bernhard Steinmetz · Meiningen, DE
Peggy Jankowski · Würzburg, DE
Nadia Luhmann · Karlstadt, DE
Michael Matura · Würzburg, DE

Key dates

Filing date	Feb 8, 2017
Grant date	Sep 21, 2021
Priority date	—
Expiry date	Aug 22, 2038

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08K5/09
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

Described herein is a method of using organic carboxylic acids having 1 to 10 carbon atoms in preparation of aqueous basecoat materials for the purpose of improving the adhesion of the aqueous basecoat materials to overbaked clearcoat materials. Also described herein is a method for producing a muilticoat paint system, where a basecoat material is applied directly to an overbaked clearcoat film.

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