EP 1292724 B2 20151223 - ZINC-NICKEL ELECTROPLATING
Title (en)
ZINC-NICKEL ELECTROPLATING
Title (de)
ZINK-NICKEL-ELEKTROPLATTIERUNG
Title (fr)
ELECTRODEPOSITION ZINC-NICKEL
Publication
Application
Priority
US 0040208 W 20000615
Abstract (en)
[origin: WO0196631A1] The present invention relates to an apparatus (12) for applying a zinc-nickel electroplate to a workpiece. The apparatus comprises a zinc-nickel electroplating bath (16) comprising an amine additive, such as poly(alkyleneimine), which is capable of being oxidized in the bath to cyanides. The bath has a pH more than about 14. A cathode workpiece (18) is positioned in the bath. An anode assembly (20) is also positioned in the bath. The anode assembly comprises an enclosure (22) defining an anolyte compartment (24), at least a portion of the enclosure being an ion exchange membrane (26). An anolyte (28) is positioned in the compartment. An insoluble metal anode (30) is immersed in the anolyte. The anolyte is a conductive salt or base solution and the anode is a metal or metal coating selected from the group consisting of nickel, cobalt, iron, chromium and alloys thereof.
IPC 8 full level
C25D 3/56 (2006.01); C25D 17/10 (2006.01)
CPC (source: EP)
C25D 3/565 (2013.01); C25D 17/10 (2013.01)
Citation (opposition)
Opponent :
- WO 0006807 A2 20000210 - HILLEBRAND WALTER GMBH & CO KG [DE], et al
- US 4889602 A 19891226 - OSHIMA KATSUHIDE [JP], et al
- DE 4035316 C2 19931104 - DAIMLER BENZ AG [DE], et al
- WO 9840539 A1 19980917 - QUANTUM CORP [US]
- US 3718549 A 19730227 - DU ROSE A, et al
- F. GOETZE, DR.: "Chemie für Gymnasien", vol. 1, 1972, C.C. BUCHNERS VERLAG, BAMBERG, pages: 84
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 0196631 A1 20011220; AT E306572 T1 20051015; DE 60023190 D1 20060223; DE 60023190 T2 20060713; DE 60023190 T3 20160310; EP 1292724 A1 20030319; EP 1292724 A4 20040908; EP 1292724 B1 20051012; EP 1292724 B2 20151223; ES 2250166 T3 20060416; ES 2250166 T5 20160520
DOCDB simple family (application)
US 0040208 W 20000615; AT 00951046 T 20000615; DE 60023190 T 20000615; EP 00951046 A 20000615; ES 00951046 T 20000615