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(11)

EP 4 771 202 A1

(12)

(43) Date of publication: 08.07.2026 Bulletin 2026/28 (21) Application number: 24773638.2 (22) Date of filing: 30.08.2024

(51) International Patent Classification (IPC):  C22C 21/08(2006.01) C22C 21/00(2006.01) C22F 1/047(2006.01) (52) Cooperative Patent Classification (CPC): C22C 21/08; C22F 1/047; C22C 21/00 (86) International application number: PCT/US2024/044640 (87) International publication number: WO 2025/049886 (06.03.2025 Gazette 2025/10)

(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 ME MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA Designated Validation States: GE KH MA MD TN (30) Priority: 30.08.2023 US 202363579771 P (71) Applicant: Novelis Inc. Atlanta, GA 30326 (US)	(72) Inventors: HWANG, YounGoo Kennesaw, Georgia 30144 (US) CHOI, Minhee Kennesaw, Georgia 30144 (US) KANG, DaeHoon Kennesaw, Georgia 30144 (US) RIBEIRO, Samuel Kennesaw, Georgia 30144 (US) PEREIRA, Felipe Kennesaw, Georgia 30144 (US) OLIVEIRA, Hesron Kennesaw, Georgia 30144 (US) (74) Representative: Weickmann & Weickmann PartmbB  Postfach 860 820 81635 München 81635 München (DE)