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(11)

EP 3 414 352 A1

(12)

(43) Date of publication: 19.12.2018 Bulletin 2018/51 (21) Application number: 17702339.7 (22) Date of filing: 26.01.2017

(51) International Patent Classification (IPC):  C22C 21/12(2006.01) C22C 21/18(2006.01) C22C 21/14(2006.01) C22F 1/057(2006.01) (86) International application number: PCT/EP2017/051595 (87) International publication number: WO 2017/137260 (17.08.2017 Gazette 2017/33)

(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 Designated Validation States: MA MD (30) Priority: 09.02.2016 EP 16154856 (71) Applicant: Aleris Rolled Products Germany GmbH 56070 Koblenz (DE)	(72) Inventor: SCHNITTGER, Sven 52062 Aachen (DE) (74) Representative: Müller Schupfner & Partner Patent- und Rechtsanwaltspartnerschaft mbB  Bavariaring 11 80336 München 80336 München (DE)