Patent · US Expired

Process for repairing coated substrate surfaces

US6743466B2 · kind B2 · utility

5Cited by

6References

10Claims

0Family size

Assignee

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

Inventors

Carmen Flosbach · Wuppertal, DE
Karl-Friedrich Doessel · Wiesbaden, DE
Werner Lenhard · Wuppertal, DE
Oliver Reis · Witten, DE
Thomas Fey · Mainz, DE

Key dates

Filing date	Aug 3, 2001
Grant date	Jun 1, 2004
Priority date	—
Expiry date	Aug 27, 2021

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB05D3/067
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

The invention relates to a process for repairing coated substrate surfaces comprising the following successive steps:a) optionally preparing a blemished area to be repaired,b) providing a backing film coated on one side with an uncured or at least partially cured coating layer of a coating composition curable by means of high energy radiation,c) applying the backing film with its coated side onto the blemished area to be repaired,d) irradiating the coating applied in this manner onto the blemished area to be repaired with high energy radiation ande) removing the backing film, whereinthe coating is irradiated through the backing film and/or after removing the backing film.

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