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(11)

EP 3 030 684 A1

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(43) Date of publication: 15.06.2016 Bulletin 2016/24 (21) Application number: 14755495.0 (22) Date of filing: 08.08.2014

(51) International Patent Classification (IPC):  C22C 1/00(2006.01) C22C 21/04(2006.01) C22F 1/10(2006.01) C22F 1/053(2006.01) C22C 21/02(2006.01) C22C 21/10(2006.01) C22F 1/043(2006.01) F28F 21/08(2006.01) (86) International application number: PCT/US2014/050346 (87) International publication number: WO 2015/021383 (12.02.2015 Gazette 2015/06)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME (30) Priority: 08.08.2013 US 201361863568 P (71) Applicant: Novelis, Inc. Atlanta, GA 30326 (US)	(72) Inventors: HOWELLS, Andrew, D. Kingston, Ontario K7P 2N1 (CA) GATENBY, Kevin, Michael Johns Creek, Georgia 30022 (US) (74) Representative: Weickmann, Hans  Weickmann & Weickmann Patentanwälte PartmbB Postfach 860 820 81635 München 81635 München (DE)