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(11)

EP 4 739 810 A1

(12)

(43) Date of publication: 13.05.2026 Bulletin 2026/20 (21) Application number: 24745587.6 (22) Date of filing: 02.07.2024

(51) International Patent Classification (IPC):  C22C 21/08(2006.01) C22F 1/05(2006.01) (52) Cooperative Patent Classification (CPC): C22C 21/08; C22F 1/05 (86) International application number: PCT/US2024/036544 (87) International publication number: WO 2025/010263 (09.01.2025 Gazette 2025/02)

(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: 03.07.2023 US 202363511819 P (71) Applicant: Novelis Inc. Atlanta, GA 30326 (US)	(72) Inventors: MACIEJEWSKI, Joseph Kennesaw, Georgia 30144 (US) PARK, Jaesuk Kennesaw, Georgia 30144 (US) KANG, Daehoon Kennesaw, Georgia 30144 (US) WARNER, Jeffrey Samuel Kennesaw, Georgia 30144 (US) (74) Representative: Weickmann & Weickmann PartmbB  Postfach 860 820 81635 München 81635 München (DE)