Global Patent Index - EP 1318212 A1

EP 1318212 A1 2003-06-11 - Agents and methods for the surface treatment of zinc-based coatings

Title (en)

Agents and methods for the surface treatment of zinc-based coatings

Title (de)

Mittel und Verfahren zur Oberflächenbehandlung von Überzügen auf Zinkbasis

Title (fr)

Agents et méthodes pour le traitement de surface de revêtements à base de zinc

Publication

EP 1318212 A1 (DE)

Application

EP 02024237 A

Priority

JP 2001341357 A

Abstract (en)

A zinc-group plated film surface treatment liquid contains a trivalent chromium compound and a fluorine compound, with a pH of 2.5-7. <??>Independent claims are included for the following: <??>(1) surface treatment method which involves contacting the zinc-group plated film with the surface treatment liquid followed by drying the film; and <??>(2) surface treated zinc-group plated film which has a protective coating provided at the surface of zinc-group plated film, where the protective coating is a film which is slightly soluble or insoluble in water, and which contains trivalent chromium and fluorine.

Abstract (de)

Wäßrige Lösung zur Oberflächenbehandlung von Überzügen auf Zinkbasis, dadurch gekennzeichnet, daß ihr pH-Wert bei 2,5 bis 7,0 liegt und sie eine dreiwertige Chromverbindung sowie eine Fluorverbindung enthält, entsprechendes Behandlungsverfahren und hiermit erhältliche Oberflächenbeschichtung.

IPC 1-7 (main, further and additional classification)

C23C 22/34; C23C 22/68

IPC 8 full level (invention and additional information)

C23C 22/34 (2006.01); C23C 22/36 (2006.01); C23C 22/68 (2006.01)

CPC (invention and additional information)

C23C 22/364 (2013.01); C23C 22/34 (2013.01); C23C 22/68 (2013.01); C23C 2222/10 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR

EPO simple patent family

EP 1318212 A1 20030611; JP 2003147544 A 20030521

INPADOC legal status


2003-09-03 [18W] APPLICATION WITHDRAWN

- Effective date: 20030710

2003-06-11 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20021031

2003-06-11 [AK] DESIGNATED CONTRACTING STATES:

- Designated State(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR

2003-06-11 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO:

- Countries: AL LT LV MK RO SI