EP 0264472 A1 19880427 - Aqueous composition for the passivation of zinc and cadmium surfaces.
Title (en)
Aqueous composition for the passivation of zinc and cadmium surfaces.
Title (de)
Wässrige Zusammensetzung zum Passivieren von Zink- und Kadmiumoberflächen.
Title (fr)
Composition aqueuse pour la passivation de surfaces de zinc et de cadmium.
Publication
Application
Priority
EP 86114575 A 19861021
Abstract (en)
An aqueous composition, fundamentally consisting of organic polymers and chromate ions for the passivation of zinc and cadmium surfaces. These are provided with a high anticorrosive resistance and the traditional colouring of conventional chromate passivation. This immersion process (self colour) does not require subsequent rinsing, thus avoiding production of chromate polluted waste effluent.
IPC 1-7
IPC 8 full level
C23C 22/28 (2006.01)
CPC (source: EP)
C23C 22/28 (2013.01)
Citation (search report)
- [X] DE 3407283 A1 19850912 - ELEKTRO BRITE GMBH [DE]
- [X] FR 1295687 A 19620608 - YAWATA IRON & STEEL CO
- [X] FR 1154580 A 19580411 - PARKER STE CONTINENTALE
- [A] EP 0087288 A1 19830831 - M & T CHEMICALS INC [US]
- [A] FR 1255706 A 19610310 - PARKER STE CONTINENTALE
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI LU NL SE
DOCDB simple family (publication)
DOCDB simple family (application)
EP 86114575 A 19861021; JP 16958687 A 19870706