EP 0770710 B2 20020814 - Process for electroplating nickel with satin finish
Title (en)
Process for electroplating nickel with satin finish
Title (de)
Verfahren zur galvanischen Abscheidung von blendfreien Nickelniederschlägen
Title (fr)
Procédé de dépôt électrolytique de nickel lisse
Publication
Application
Priority
DE 19540011 A 19951027
Abstract (en)
[origin: EP0770710A1] A process for electroplating metal surfaces with non-reflective nickel coatings is operated at 40-75 degrees C with a Watts electrolyte, an electrolyte based on sulphamate, sulphonate or fluoroborate, or a mixture, with the addition of: (A) a conventional basic brightener; and (B) substituted and/or unsubstituted ethylene oxide (EO) adducts, or propylene oxide (PO) adducts, or EO-PO adducts in a concentration of up to 5 mg/l (to produce the non-reflective effect). The concentration of (B) and the temperature of the electrolyte are set as above so that the operating electrolyte appears clear on visual inspection, with practically no scattering of transmitted light.
IPC 1-7
IPC 8 full level
C25D 3/12 (2006.01)
CPC (source: EP US)
C25D 3/12 (2013.01 - EP US)
Citation (opposition)
Opponent :
- DE 1621085 A1 19710311 - HENKEL & CIE GMBH
- Römpp Chemielexikon, 9. Auflage 1992, Band 6, Seite 4754
- G. Michael: "Verfahren zur Abscheidung von seidenmatten Nickelüberzügen", Metalloberfläche, Band 25 (1971), Heft 10, Seiten 345-380.
- K. Schulze-Berge: "Blendarmes Glanznickel als Matrix für farbige Beschichtungen, Galvanotechnik, Band 80 (1989), Heft 11, Seiten 3799-3804.
- Merkblatt "Mattierungsbad Supramatt KN 650000" Dr. Hesse & Cie.
Designated contracting state (EPC)
AT DE ES FR GB NL
DOCDB simple family (publication)
EP 0770710 A1 19970502; EP 0770710 B1 19990107; EP 0770710 B2 20020814; AT E175453 T1 19990115; DE 19540011 A1 19970430; DE 19540011 C2 19980910; DE 59601103 D1 19990218; ES 2128135 T3 19990501; ES 2128135 T5 20030301; JP H09202987 A 19970805; US 5897763 A 19990427
DOCDB simple family (application)
EP 96116639 A 19961017; AT 96116639 T 19961017; DE 19540011 A 19951027; DE 59601103 T 19961017; ES 96116639 T 19961017; JP 28405296 A 19961025; US 73690696 A 19961025