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EP 4 798 395 A1

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(43) Date of publication: 02.09.2026 Bulletin 2026/36 (21) Application number: 24794130.5 (22) Date of filing: 22.10.2024

(51) International Patent Classification (IPC):  B22D 41/02(2006.01) C21C 5/44(2006.01) F27D 1/16(2006.01) (52) Cooperative Patent Classification (CPC): B22D 41/023; F27D 1/16; F27D 2001/1605; F27D 1/1636; F27D 1/1642; C21C 5/441; C21C 5/443; C21C 5/4673 (86) International application number: PCT/EP2024/079851 (87) International publication number: WO 2025/087920 (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: 25.10.2023 EP 23205920 (71) Applicant: Vesuvius Group, S.A. 7011 Ghlin (BE)	(72) Inventor: STAMATAKIS, Georges 59123 ZUYDCOOTE (FR) (74) Representative: Butaye, Nicolas  Vesuvius Group S.A. Rue de Douvrain, 17 7011 Ghlin 7011 Ghlin (BE)