(19)
(11) EP 1 863 746 A1

(12)

(43) Date of publication:
12.12.2007 Bulletin 2007/50

(21) Application number: 06723301.5

(22) Date of filing: 08.03.2006
(51) International Patent Classification (IPC): 
C04B 41/90(2006.01)
 C03C 17/36(2006.01)
(86) International application number:
PCT/EP2006/002147
(87) International publication number:
WO 2006/099950 (28.09.2006 Gazette 2006/39)
(84) Designated Contracting States:
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

(30) Priority: 24.03.2005 DE 102005013866

(71) Applicant: Ferro GmbH
60327 Frankfurt (DE)

(72) Inventors:
  • POTH, Lutz
    64380 Rossdorf (DE)
  • GUICHARD, Jean-Claude
    63667 Nidda (DE)
  • AUGUSTIN, Heinz, Wolfgang
    64397 Darmstadt (US)

(74) Representative: Reinhardt, Markus 
Ortenburger Strasse, 8
83224 Grassau
83224 Grassau (DE)

   


(54) PROCESS FOR PRODUCING DISHWASHER-RESISTANT, SCRATCH- AND ABRASION-RESISTANT PRECIOUS METAL DECORATIONS