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(11)

EP 2 107 956 A1

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(43) Date of publication: 14.10.2009 Bulletin 2009/42 (21) Application number: 07855557.0 (22) Date of filing: 17.12.2007

(51) International Patent Classification (IPC):  B22D 35/06(2006.01) C04B 35/58(2006.01) B01J 19/02(2006.01) (86) International application number: PCT/CA2007/002275 (87) International publication number: WO 2008/074134 (26.06.2008 Gazette 2008/26)

(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 MT NL PL PT RO SE SI SK TR (30) Priority: 19.12.2006 US 876045 P (71) Applicant: Novelis Inc. Toronto, ON M8Z 1J5 (CA)	(72) Inventors: HYMAS, Jason D. Spokane Valley, WA 99216 (US) REEVES, Eric W. Hayden, Idaho 83835 (US) BRUSKI, Richard Scott Spokane, WA 99217 (US) (74) Representative: HOFFMANN EITLE  Patent- und Rechtsanwälte Arabellastrasse 4 81925 München 81925 München (DE)