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(11)

EP 4 175 925 A1

(12)

(43) Date of publication: 10.05.2023 Bulletin 2023/19 (21) Application number: 21736328.2 (22) Date of filing: 30.06.2021

(51) International Patent Classification (IPC):  C04B 28/02(2006.01) C04B 28/14(2006.01) (52) Cooperative Patent Classification (CPC): C04B 2111/62; C04B 2111/27; C04B 28/14; C04B 28/02   C-Sets: C04B 28/02, C04B 40/0608, C04B 2103/0057, C04B 2103/65; C04B 28/02, C04B 24/42, C04B 40/0608, C04B 2103/0057; C04B 28/14, C04B 7/02, C04B 7/32, C04B 14/06, C04B 14/28, C04B 24/38, C04B 40/0608, C04B 2103/0057, C04B 2103/10, C04B 2103/20, C04B 2103/50, C04B 2103/65; C04B 28/14, C04B 7/02, C04B 7/32, C04B 14/06, C04B 14/28, C04B 22/147, C04B 24/06, C04B 24/38, C04B 24/42, C04B 40/0608, C04B 2103/0057, C04B 2103/50; (86) International application number: PCT/EP2021/068043 (87) International publication number: WO 2022/003044 (06.01.2022 Gazette 2022/01)

(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: 01.07.2020 EP 20315335 (71) Applicant: Saint-Gobain Weber France 94370 Sucy en Brie (FR)	(72) Inventors: BERTELS, Michael 48161 Münster (DE) HILL, Marcus 79206 Breisach (DE) (74) Representative: Saint-Gobain Recherche  B.P. 135 39, quai Lucien Lefranc 93303 Aubervilliers Cedex 93303 Aubervilliers Cedex (FR)