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EP 4 798 730 A1

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(43) Date of publication: 02.09.2026 Bulletin 2026/36 (21) Application number: 24787532.1 (22) Date of filing: 16.10.2024

(51) International Patent Classification (IPC):  C12P 7/40(2006.01) B01D 11/04(2006.01) C12P 7/6409(2022.01) C07C 51/48(2006.01) C12R 1/145(2006.01) (52) Cooperative Patent Classification (CPC): C12R 2001/145; C07C 51/48; B01D 11/0492; C12P 7/6409   C-Sets: C07C 51/48, C07C 53/126; (86) International application number: PCT/EP2024/079156 (87) International publication number: WO 2025/087760 (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: 26.10.2023 EP 23205973 (71) Applicant: Evonik Operations GmbH 45128 Essen (DE)	(72) Inventors: HAAS, Thomas 60322 Frankfurt (DE) DEMLER, Martin 46286 Dorsten (DE) BECK, Simon 48161 Münster (DE) (74) Representative: Evonik Patent Association  c/o Evonik Industries AG IP Management Postcode 84/339 Rodenbacher Chaussee 4 63457 Hanau 63457 Hanau (DE)