The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 03, 2012
Filed:
Jan. 24, 2008
Klaus Bronder, Spraitbach, DE;
Bernd Weyhmueller, Alfdorf Hintersteinenberg, DE;
Frank Oberst, Schwaebisch Gmuend, DE;
Sascha Berger, Schwaebisch Gmuend, DE;
Michael Lauster, Schwaebisch Gmuend, DE;
Klaus Bronder, Spraitbach, DE;
Bernd Weyhmueller, Alfdorf Hintersteinenberg, DE;
Frank Oberst, Schwaebisch Gmuend, DE;
Sascha Berger, Schwaebisch Gmuend, DE;
Michael Lauster, Schwaebisch Gmuend, DE;
Umicore Galvanotechnik GmbH, Schwaebisch Gmuend, DE;
Abstract
Consumer goods and industrial articles are electro-plated with bronze layers for decorative reasons and to protect them against corrosion. The electrolytes used hitherto for producing decorative bronze layers are either cyanide-containing or, as in the case of baths based on organosulphonic acids, highly corrosive or have, as in the case of cyanide-free baths based on diphosphoric acid, unsatisfactory long-term stabilities. Electrolytes which are used for applying solderable bronze layers in the electronics industry usually contain toxic or very toxic thio compounds. The present invention provides a non-toxic electrolyte which displays long-term stability for the electrolytic deposition of decorative bronze layers and a corresponding process for the application of such decorative bronze layers to consumer goods and industrial articles.