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(11)

EP 4 798 752 A1

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(43) Date of publication: 02.09.2026 Bulletin 2026/36 (21) Application number: 24787587.5 (22) Date of filing: 04.10.2024

(51) International Patent Classification (IPC):  C23C 2/00(2006.01) C23C 2/20(2006.01) C23C 2/06(2006.01) (52) Cooperative Patent Classification (CPC): C23C 2/003; C23C 2/0034; C23C 2/00342; C23C 2/325; C23C 2/20; C23C 2/06 (86) International application number: PCT/IB2024/059728 (87) International publication number: WO 2025/088411 (01.05.2025 Gazette 2025/18)

(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: 24.10.2023 WO PCT/IB2023/060718 (71) Applicant: ArcelorMittal 1160 Luxembourg (LU)	(72) Inventors: DI GIROLAMO, Giuseppe 4480 Engis (BE) LIBERTI, Antonino 4430 Ans (BE) MUNGIOVI, Rosario 4460 Grace-Hollogne (BE) NOVILLE, Jean-François 4041 Milmort (BE) LARNICOL, Maïwenn Tifenn Soazig 5020 Vedrin (BE) (74) Representative: Plaisant, Sophie Marie  ArcelorMittal France Research & Development Intellectual Property 6, rue André Campra 93200 Saint-Denis 93200 Saint-Denis (FR)