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(11)

EP 4 189 035 A1

(12)

(43) Date of publication: 07.06.2023 Bulletin 2023/23 (21) Application number: 21754761.1 (22) Date of filing: 28.07.2021

(51) International Patent Classification (IPC):  C09K 19/30(2006.01) C09K 19/06(2006.01) C09K 19/34(2006.01) C09K 19/12(2006.01) (52) Cooperative Patent Classification (CPC): C09K 2019/3004; C09K 2019/301; C09K 2019/123; C09K 2019/0466; C09K 19/3098; C09K 2019/3422; C09K 2019/122; C09K 2019/124; C09K 19/3491; C09K 2019/3027; C09K 2019/3009; C09K 19/062 (86) International application number: PCT/EP2021/071106 (87) International publication number: WO 2022/023400 (03.02.2022 Gazette 2022/05)

(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 MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 31.07.2020 EP 20188978 (71) Applicant: Merck Patent GmbH 64293 Darmstadt (DE)	(72) Inventors: LAUT, Sven Christian 64293 DARMSTADT (DE) WINDHORST, Martina 64293 DARMSTADT (DE) BROCKE, Constanze 64293 DARMSTADT (DE)