(19)

(11)

EP 4 816 333 A2

(12)

(88) Date of publication A3: 14.08.2025 (43) Date of publication: 07.10.2026 Bulletin 2026/41 (21) Application number: 24827325.2 (22) Date of filing: 21.11.2024

(51) International Patent Classification (IPC):  C04B 24/42(2006.01) C04B 22/06(2006.01) C04B 28/14(2006.01) C04B 111/27(2006.01) (52) Cooperative Patent Classification (CPC): C04B 28/14; C04B 24/42; C04B 2111/27; C04B 2111/0062; C04B 22/064; C04B 2103/34   C-Sets: C04B 28/14, C04B 14/42, C04B 22/064, C04B 24/38, C04B 24/42; (86) International application number: PCT/US2024/056897 (87) International publication number: WO 2025/117327 (05.06.2025 Gazette 2025/23)

(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: 29.11.2023 US 202363603821 P (71) Applicants: Certainteed Gypsum, Inc. Malvern, PA 19355 (US) Saint-Gobain Placo 92400 Courbevoie (FR)	(72) Inventors: AMATO, Dahlia Malvern, Pennsylvania 19355 (US) MCGINLEY, Patrick R. Malvern, Pennsylvania 19355 (US) TUBBS, Cassandra Malvern, Pennsylvania 19355 (US) ADJOUA, Serge Malvern, Pennsylvania 19355 (US) LESPIAT, Remi Malvern, Pennsylvania 19355 (US) (74) Representative: Murgitroyd & Company  165-169 Scotland Street Glasgow G5 8PL Glasgow G5 8PL (GB)