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EP 4 770 976 A1

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(43) Date of publication: 08.07.2026 Bulletin 2026/28 (21) Application number: 24758283.6 (22) Date of filing: 23.08.2024

(51) International Patent Classification (IPC):  C04B 24/12(2006.01) C04B 40/00(2006.01) C04B 28/04(2006.01) (52) Cooperative Patent Classification (CPC): C04B 24/122; C04B 40/0039; C04B 28/04; C04B 2103/52; C04B 2111/72   C-Sets: C04B 24/122, C04B 20/023; C04B 40/0039, C04B 24/02, C04B 24/122, C04B 24/122, C04B 2103/0079, C04B 2103/10, C04B 2103/20, C04B 2103/302, C04B 2103/304, C04B 2103/32, C04B 2103/40, C04B 2103/44, C04B 2103/46, C04B 2103/50, C04B 2103/52, C04B 2103/54, C04B 2103/58, C04B 2103/61, C04B 2103/67; C04B 28/04, C04B 24/122, C04B 24/122, C04B 40/0028; (86) International application number: PCT/EP2024/073704 (87) International publication number: WO 2025/045770 (06.03.2025 Gazette 2025/10)

(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: GE KH MA MD TN (30) Priority: 31.08.2023 EP 23194523 (71) Applicant: Sika Technology AG 6340 Baar (CH)	(72) Inventors: CHAPELAT, Julien 2502 Bienne (CH) CEREDA, Cristiano 24010 Bonate Sopra (IT) GALLUCCI, Emmanuel 8048 Zürich (CH) (74) Representative: Sika Patent Attorneys  C/o Sika Technology AG Corp. IP Dept. Tüffenwies 16 8048 Zürich 8048 Zürich (CH)