(19)

(11)

EP 4 452 891 A1

(12)

(43) Date of publication: 30.10.2024 Bulletin 2024/44 (21) Application number: 22847135.5 (22) Date of filing: 22.12.2022

(51) International Patent Classification (IPC):  C04B 28/14(2006.01) C04B 24/42(2006.01) C04B 18/16(2023.01) C04B 111/27(2006.01) (52) Cooperative Patent Classification (CPC): C04B 28/14; C04B 2111/27; C04B 2111/0062; C04B 18/16   C-Sets: C04B 28/14, C04B 18/16, C04B 20/008, C04B 24/42, C04B 40/00; (86) International application number: PCT/EP2022/087559 (87) International publication number: WO 2023/118475 (29.06.2023 Gazette 2023/26)

(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: 24.12.2021 EP 21306944 (71) Applicant: Etex Building Performance International SAS 84915 Avignon (FR)	(72) Inventor: BOISVERT, Jean-Philippe 84210 Pernes-les-Fontaines (FR) (74) Representative: Etex Services NV - Etex IPSC  Kuiermansstraat 1 1880 Kapelle-op-den-Bos 1880 Kapelle-op-den-Bos (BE)