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EP 4 522 357 A1

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(43) Date of publication: 19.03.2025 Bulletin 2025/12 (21) Application number: 23787121.5 (22) Date of filing: 11.10.2023

(51) International Patent Classification (IPC):  B22C 9/08(2006.01) B22D 35/04(2006.01) (52) Cooperative Patent Classification (CPC): B22C 9/088; B22C 9/08; B22D 35/04 (86) International application number: PCT/EP2023/078193 (87) International publication number: WO 2024/079189 (18.04.2024 Gazette 2024/16)

(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: KH MA MD TN (30) Priority: 11.10.2022 DE 202022105722 U (71) Applicant: ASK Chemicals GmbH 40721 Hilden (DE)	(72) Inventors: SKERDI, Udo 56179 Vallendar (DE) FRIEDERICI, Marcus 08058 Zwickau (DE) FISCHER, Stefan 66399 Mandelbachtal (DE) VOIGT, Ulrich 04109 Leipzig (DE) ORTIZ, Imanol 48013 Bilbao (ES) (74) Representative: Müller Schupfner & Partner Patent- und Rechtsanwaltspartnerschaft mbB (Hamburg)  Schellerdamm 19 21079 Hamburg 21079 Hamburg (DE)