Patent · US Active

Method for producing a multicoat paint system by postadditization of at least one basecoat with an aqueous dispersion comprising polyamides and/or amide waxes

US11896998B2 · kind B2 · utility

0Cited by

12References

20Claims

0Family size

Assignee

BASF COATINGS GMBH · DE

Inventors

Dirk Eierhoff · Munster, DE
Joerg Schwarz · Munster, DE
Silke Hellwig · Wuppertal, DE

Key dates

Filing date	Sep 30, 2019
Grant date	Feb 13, 2024
Priority date	—
Expiry date	Aug 14, 2040

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08L2201/54
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

Described herein is a method for producing a multicoat paint system by producing a basecoat or a plurality of directly successive basecoats directly on a substrate coated with a first coat, producing a clearcoat directly on the one or the topmost of the plurality of basecoats, and subsequently jointly curing the one or the plurality of basecoats and the clearcoat. At least one of the basecoat materials is admixed, directly before application, either with an aqueous dispersion (D1) including a polyamide (PA) having an acid number of 15 to 60 mg KOH/g or with an aqueous dispersion (D2) including a polyamide (PA) and an amide wax (AW).

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