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(11)

EP 1 858 661 A1

(12)

(43) Date of publication: 28.11.2007 Bulletin 2007/48 (21) Application number: 06705222.5 (22) Date of filing: 24.02.2006

(51) International Patent Classification (IPC):  B22D 11/103(2006.01) B22D 11/06(2006.01) (86) International application number: PCT/CA2006/000267 (87) International publication number: WO 2006/089419 (31.08.2006 Gazette 2006/35)

(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 Designated Extension States: AL BA HR MK YU (30) Priority: 25.02.2005 US 66625 (71) Applicant: Novelis Inc. Toronto, ON M8Z 1J5 (CA)	(72) Inventors: SULZER, John Kingston, Ontario K7M 3C3 (CA) GALLERNEAULT, Willard Mark Truman Kingston, Ontario K7M 1X8 (CA) (74) Representative: HOFFMANN EITLE  Patent- und Rechtsanwälte Arabellastrasse 4 81925 München 81925 München (DE)