Global Patent Index - EP 1876268 A1

EP 1876268 A1 20080109 - Black chromium process free of Cr-VI

Title (en)

Black chromium process free of Cr-VI

Title (de)

Cr-VI-freie Schwarzverchromung

Title (fr)

Procédé pour le dépot de chromium noir exempt de Cr-VI

Publication

EP 1876268 A1 20080109 (DE)

Application

EP 06115347 A 20060613

Priority

EP 06115347 A 20060613

Abstract (en)

Preparation of black chrome-plating of a surface comprises black chrome-plating the metal surface and cleaning the black chrome-plated surface using an alkaline solvent by ultrasound treatment.

Abstract (de)

Die Erfindung betrifft weitgehend die Herstellung von Cr-VI-freien Schwarzverchromungsschichten, vorzugsweise auf Automobilinnenoberflächen. Wesentlich ist die Kombination einer kathodischen Aktivierung vor der Schwarzverchromung mit einer ultraschallunterstützten Reinigung danach.

IPC 8 full level

C25D 11/38 (2006.01); C23C 22/30 (2006.01); C23C 22/83 (2006.01); C25D 3/06 (2006.01); C25D 5/48 (2006.01)

CPC (source: EP US)

C23C 22/37 (2013.01 - EP); C23C 22/83 (2013.01 - EP US); C25D 3/08 (2013.01 - EP); C25D 5/12 (2013.01 - EP US); C25D 5/34 (2013.01 - EP); C25D 5/36 (2013.01 - EP); C25D 5/42 (2013.01 - EP); C25D 5/48 (2013.01 - EP); C25D 5/605 (2020.08 - EP US); C25D 5/611 (2020.08 - EP US); C25D 5/617 (2020.08 - EP US); C25D 5/627 (2020.08 - EP US)

Citation (applicant)

Citation (search report)

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

Designated extension state (EPC)

AL BA HR MK YU

DOCDB simple family (publication)

EP 1876268 A1 20080109; EP 1876268 B1 20130515; WO 2007144336 A2 20071221; WO 2007144336 A3 20080228

DOCDB simple family (application)

EP 06115347 A 20060613; EP 2007055745 W 20070612