(19)

(11)

EP 1 546 416 A1

(12)

(43) Date of publication: 29.06.2005 Bulletin 2005/26 (21) Application number: 03747746.0 (22) Date of filing: 18.09.2003

(51) International Patent Classification (IPC)7: C21D 6/02, C21D 6/00, C22C 38/58, C22C 38/34 (86) International application number: PCT/BE2003/000154 (87) International publication number: WO 2004/031419 (15.04.2004 Gazette 2004/16)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR Designated Extension States: AL LT LV MK (30) Priority: 01.10.2002 US 414662 P (71) Applicant: MAGOTTEAUX INTERNATIONAL S.A. 4051 Vaux-sous-Chèvremont (BE)	(72) Inventor: LILLEY, John, David Millbury, MA 01527 (US) (74) Representative: Van Malderen, Michel et al Office van Malderen85/043 Boulevard de la Sauvenière 4000 Liège 4000 Liège (BE)