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EP 4 547 691 A1

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(43) Date of publication: 07.05.2025 Bulletin 2025/19 (21) Application number: 23734240.7 (22) Date of filing: 21.06.2023

(51) International Patent Classification (IPC):  C07K 14/34(2006.01) A61L 27/24(2006.01) B33Y 70/00(2020.01) C07K 14/78(2006.01) A61L 27/52(2006.01) A61L 27/36(2006.01) (52) Cooperative Patent Classification (CPC): C07K 14/34; C07K 14/78; A61L 27/24; A61L 27/52; A61L 27/38; A61L 27/50; B33Y 70/10; B33Y 80/00 (86) International application number: PCT/EP2023/066741 (87) International publication number: WO 2024/002806 (04.01.2024 Gazette 2024/01)

(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: 01.07.2022 EP 22182499 08.02.2023 EP 23155606 (71) Applicant: Evonik Operations GmbH 45128 Essen (DE)	(72) Inventors: LIU, Yunxiao Singapore 648324 (SG) LOO, Eva Yihua Singapore 449032 (SG) RITTER, Anne 45470 Mülheim an der Ruhr (DE) (74) Representative: Evonik Patent Association  c/o Evonik Industries AG IP Management Postcode 84/339 Rodenbacher Chaussee 4 63457 Hanau 63457 Hanau (DE)