Patent · US Expired

Process for multi-layer coating

US6508922B2 · kind B2 · utility

2Cited by

8References

19Claims

0Family size

Assignee

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

Inventors

Matthias Kimpel · Schwelm, DE
Martin Wulf · Langenfeld, DE
Oliver Reis · Witten, DE

Key dates

Filing date	May 10, 2001
Grant date	Jan 21, 2003
Priority date	—
Expiry date	Aug 1, 2021

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB05D1/007
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

A process for the production of a multi-layer coating, wherein a primer layer which is electrically conductive in the at least partially cured state is applied by electrodeposition from an electrodeposition coating agent (I) to an electrically conductive three-dimensional object, at least partially cured exclusively by the action of near infra-red radiation substantially only on the surfaces of the object exposed to the radiation, and an additional coating layer is applied by electrodeposition from an electrodeposition coating agent (II) which is different from electrodeposition coating agent (I), and then this additional coating layer as well as completely uncured or incompletely cured area parts of the primer layer produced from electrodeposition coating agent (I) are cured.

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