EP 1318212 A1 20030611 - 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
Application
Priority
JP 2001341357 A 20011107
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
IPC 8 full level
C23C 22/34 (2006.01); C23C 22/36 (2006.01); C23C 22/68 (2006.01)
CPC (source: EP)
C23C 22/34 (2013.01); C23C 22/364 (2013.01); C23C 22/68 (2013.01); C23C 2222/10 (2013.01)
Citation (search report)
- [X] EP 0034040 A1 19810819 - BNF METALS TECH CENTRE [GB]
- [X] US 4761189 A 19880802 - MADY RASCHAD [DE], et al
- [X] US 1957354 A 19340501 - PIERRE PRIER
- [X] US 3072516 A 19630108 - BELLINGER KENNETH P, et al
- [X] SU 1448767 A1 19901107 - INST KHIM KHIM T AN LITSSR [SU], et al
- [A] DE 19740248 A1 19990318 - HENKEL KGAA [DE]
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
DOCDB simple family (publication)
DOCDB simple family (application)
EP 02024237 A 20021031; JP 2001341357 A 20011107