Patent · US Expired

Cathodic electrodeposition coating compositions and process for using same

US7153406B2 · kind B2 · utility

0Cited by

3References

8Claims

0Family size

Assignee

E.I. DU PONT DE NEMOURS AND COMPANY · US

Inventors

Helmut Hoenig · Kumberg, AT
Erik Bambach · Graz, AT
Georg Pampouchidis · Graz, AT
Manfred Valtrovic · Graz, AT

Key dates

Filing date	Jul 15, 2003
Grant date	Dec 26, 2006
Priority date	—
Expiry date	Jul 17, 2025

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC25D13/20
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

A cathodic electrodeposition coating composition which produces substantially pinhole-free coatings on galvanized surfaces, said composition comprising 0.2 to 8% by weight, based on the weight of resin solids in the composition, of at least one 5- or 6-membered cyclic imide having a (cyclo)alkyl or (cyclo)alkenyl residue comprising 4 to 12 carbon atoms on the imide nitrogen.

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