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EP 4 532 441 A1

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(43) Date of publication: 09.04.2025 Bulletin 2025/15 (21) Application number: 23729401.2 (22) Date of filing: 31.05.2023

(51) International Patent Classification (IPC):  C04B 28/04(2006.01) C04B 111/27(2006.01) (52) Cooperative Patent Classification (CPC): C04B 28/04; C04B 2111/00801; C04B 2111/27; C04B 2103/0065; C04B 2103/0057; C04B 2111/34   C-Sets: C04B 28/04, C04B 14/06, C04B 14/106, C04B 14/14, C04B 18/165, C04B 18/20, C04B 20/0076, C04B 22/064, C04B 24/2641, C04B 40/065, C04B 2103/408; C04B 28/04, C04B 14/06, C04B 14/106, C04B 14/14, C04B 18/165, C04B 18/20, C04B 20/0076, C04B 22/064, C04B 24/2676, C04B 40/065, C04B 2103/408; C04B 28/04, C04B 14/06, C04B 14/106, C04B 14/14, C04B 18/165, C04B 18/20, C04B 20/0076, C04B 22/064, C04B 24/2623, C04B 40/065, C04B 2103/408; (86) International application number: PCT/EP2023/064472 (87) International publication number: WO 2023/232832 (07.12.2023 Gazette 2023/49)

(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: 01.06.2022 EP 22176772 (71) Applicant: BASF SE 67056 Ludwigshafen am Rhein (DE)	(72) Inventor: SEIP, Klaus 67056 Ludwigshafen am Rhein (DE) (74) Representative: Meissner Bolte Partnerschaft mbB  Patentanwälte Rechtsanwälte Postfach 86 06 24 81633 München 81633 München (DE)