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(11)

EP 4 536 608 A1

(12)

(43) Date of publication: 16.04.2025 Bulletin 2025/16 (21) Application number: 23731272.3 (22) Date of filing: 07.06.2023

(51) International Patent Classification (IPC):  C04B 28/00(2006.01) C04B 7/17(2006.01) C04B 28/08(2006.01) C04B 111/10(2006.01) C04B 7/153(2006.01) C04B 7/24(2006.01) C04B 28/18(2006.01) (52) Cooperative Patent Classification (CPC): C04B 28/006; C04B 28/001; C04B 2111/1031; C04B 2111/1037; C04B 2111/1056; C04B 7/17; C04B 7/153; C04B 28/08; C04B 28/188; C04B 7/243   C-Sets: C04B 7/153, C04B 18/08, C04B 18/167, C04B 22/066; C04B 28/08, C04B 14/106, C04B 18/025, C04B 18/08, C04B 18/167, C04B 22/064, C04B 22/066; C04B 28/001, C04B 14/106, C04B 18/025, C04B 18/08, C04B 18/167, C04B 22/064, C04B 22/066; C04B 28/188, C04B 14/106, C04B 18/025, C04B 18/08, C04B 18/167, C04B 22/066; C04B 28/006, C04B 14/06, C04B 14/106, C04B 18/025, C04B 18/0418, C04B 18/141, C04B 18/167, C04B 22/066, C04B 22/16; C04B 28/006, C04B 14/361, C04B 18/141, C04B 18/167, C04B 18/265, C04B 22/066, C04B 22/16; C04B 7/243, C04B 14/106, C04B 18/025, C04B 18/141, C04B 18/167, C04B 22/066; C04B 28/001, C04B 14/106, C04B 18/025, C04B 18/08, C04B 18/141, C04B 18/146, C04B 18/167, C04B 22/064, C04B 22/066, C04B 22/16; C04B 7/17, C04B 18/08, C04B 18/167; (86) International application number: PCT/EP2023/065218 (87) International publication number: WO 2023/237599 (14.12.2023 Gazette 2023/50)

(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: 07.06.2022 WO PCT/EP2022/065425 31.03.2023 EP 23166151 (71) Applicant: Oxara AG 8093 Zürich (CH)	(72) Inventors: LANDROU, Gnanli 8700 Küsnacht (CH) DEMOULIN, Thibault 8046 Zurich (CH) (74) Representative: Keller Schneider Patent- und Markenanwälte AG  Eigerstrasse 2 Postfach 3000 Bern 14 3000 Bern 14 (CH)