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EP 4 076 788 A1

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(43) Date of publication: 26.10.2022 Bulletin 2022/43 (21) Application number: 20842788.0 (22) Date of filing: 18.12.2020

(51) International Patent Classification (IPC):  B22D 11/00(2006.01) B22D 11/055(2006.01) B22D 11/115(2006.01) B22D 11/20(2006.01) B22D 11/049(2006.01) B22D 11/10(2006.01) B22D 11/18(2006.01) (52) Cooperative Patent Classification (CPC): B22D 11/055; B22D 11/202; B22D 11/10; B22D 11/115; B22D 11/049; B22D 11/003; B22D 11/182 (86) International application number: PCT/US2020/065919 (87) International publication number: WO 2021/127378 (24.06.2021 Gazette 2021/25)

(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: KH MA MD TN (30) Priority: 20.12.2019 US 201962951883 P (71) Applicant: Novelis, Inc. Atlanta, GA 30326 (US)	(72) Inventors: WAGSTAFF, Samuel Robert Marietta, Georgia 30066 (US) WAGSTAFF, Robert Bruce Greenacres, Washington 99016 (US) (74) Representative: Dey, Michael  Weickmann & Weickmann Patent- und Rechtsanwälte PartmbB Postfach 860 820 81635 München 81635 München (DE)