Patent · US Expired

Method for the anodic electrophoretic enamelling and electrophoretic paints

US7494716B2 · kind B2 · utility

5Cited by

11References

10Claims

0Family size

Assignee

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

Inventors

Eduard Ehmann · Sprockhövel, DE
Manfred Evers · Velbert, DE
Andreas Fieberg · Goldkronach, DE
Konstadinos Markou
Bettina Vogt-Birnbrich · Solingen, DE

Key dates

Filing date	Dec 13, 2000
Grant date	Feb 24, 2009
Priority date	—
Expiry date	May 13, 2021

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/31529
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

Process for the anodic electro-dipcoating of conducting surfaces by dipping in an aqueous anodic electro-dipcoating bath and connecting up as the anode, in which an aqueous anodic electro-dipcoating bath is used that contains 1 to 15 wt. %, referred to the binder solids of the electro-dipcoating bath, of one or more phosphoric acid epoxy esters and/or phosphonic acid epoxy esters that have been produced in the presence of alcohols.

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