(19)

(11)

EP 1 838 490 A1

(12)

(43) Date of publication: 03.10.2007 Bulletin 2007/40 (21) Application number: 06706199.4 (22) Date of filing: 09.01.2006

(51) International Patent Classification (IPC):  B23K 35/00(2006.01) C25D 3/12(2006.01) C25D 5/44(2006.01) B23K 35/02(2006.01) C25D 3/20(2006.01) (86) International application number: PCT/EP2006/000185 (87) International publication number: WO 2006/077041 (27.07.2006 Gazette 2006/30)

(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: 19.01.2005 EP 05075082 (71) Applicant: Aleris Aluminum Koblenz GmbH 56070 Koblenz (DE)	(72) Inventors: WITTEBROOD, Adrianus, Jacobus NL-1991 HB Velserbroek (NL) WIJENBERG, Jacques, Hubert, Olga, Joseph NL-1019 PE Amsterdam (NL) (74) Representative: Müller, Frank Peter et al Müller Schupfner Patentanwälte Bavariaring 11 D-80336 München D-80336 München (DE)