Patent · US Active

Aqueous dip-coating composition for electroconductive substrates, comprising bismuth and a phosphorus-containing, amine-blocked compound

US9982147B2 · kind B2 · utility

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24Claims

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Assignees

BASF COATINGS GMBH · DE
Henkel AG & Co. KGaA · DE

Inventors

Sabine Holtschulte · Ascheberg, DE
Andreas Niegemeier · Düsseldorf, DE
Dominik Stoll · Munster, DE

Key dates

Filing date	Dec 10, 2013
Grant date	May 29, 2018
Priority date	—
Expiry date	Feb 5, 2034

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC23C18/1254
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

The present invention relates to an aqueous coating composition (A) comprising at least one cathodically depositable binder (A1) and optionally at least one crosslinking agent (A2), for at least partly coating an electrically conductive substrate with an electrocoat material, where (A) comprises a total amount of at least 30 ppm of bismuth, based on the total weight of (A), and additionally at least one phosphorus-containing compound (P) blocked with at least one amine of the general formula (I), to the use of (A) for at least partly coating an electrically conductive substrate with an electrocoat material, to a corresponding coating method, and to an at least partly coated substrate obtainable by this method.

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