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EP 4 584 428 A1

(12)

(43) Date of publication: 16.07.2025 Bulletin 2025/29 (21) Application number: 23764309.3 (22) Date of filing: 31.08.2023

(51) International Patent Classification (IPC):  C25B 9/70(2021.01) C25B 15/00(2006.01) G06N 20/00(2019.01) C25B 11/052(2021.01) G06F 17/11(2006.01) (52) Cooperative Patent Classification (CPC): C25B 15/00; C25B 11/052; C25B 9/70; G06N 20/00; G06F 17/11; G06N 3/0464; G06N 3/044; G06N 3/09 (86) International application number: PCT/EP2023/073862 (87) International publication number: WO 2024/052195 (14.03.2024 Gazette 2024/11)

(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: 06.09.2022 EP 22194237 (71) Applicant: Covestro Deutschland AG 51373 Leverkusen (DE)	(72) Inventors: LUTZ, Helmut 42799 Leichlingen (DE) BULAN, Andreas 40764 Langenfeld (DE) TRIEU, Vinh 50679 Köln (DE) KARDASH, Stanislav 45143 Essen (DE) HEINZ, Paul 51375 Leverkusen (DE) (74) Representative: Levpat  c/o Covestro AG Gebäude K12 51365 Leverkusen 51365 Leverkusen (DE)