(19)

(11)

EP 4 334 264 A1

(12)

(43) Date of publication: 13.03.2024 Bulletin 2024/11 (21) Application number: 22727744.9 (22) Date of filing: 03.05.2022

(51) International Patent Classification (IPC):  C04B 28/14(2006.01) C04B 111/28(2006.01) C04B 24/12(2006.01) (52) Cooperative Patent Classification (CPC): C04B 2201/20; C04B 2111/00094; C04B 2111/28; C04B 2111/0062; C04B 28/14; C04B 24/126   C-Sets: C04B 28/14, C04B 14/10, C04B 14/202, C04B 14/42, C04B 22/124, C04B 22/124, C04B 22/16, C04B 24/126, C04B 24/38, C04B 2103/10, C04B 2103/20, C04B 2103/408; C04B 28/14, C04B 14/10, C04B 14/202, C04B 14/46, C04B 22/124, C04B 22/124, C04B 22/16, C04B 24/126, C04B 24/38, C04B 2103/10, C04B 2103/20, C04B 2103/408; (86) International application number: PCT/EP2022/025202 (87) International publication number: WO 2022/233455 (10.11.2022 Gazette 2022/45)

(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: 07.05.2021 US 202163185622 P 06.04.2022 US 202217658122 (71) Applicant: Knauf Gips KG 97346 Iphofen (DE)	(72) Inventors: HEMPHILL, Mark Hawthorn Woods, IL 60047 (US) LI, Qinghua Rolling Meadows, IL 60008 (US) (74) Representative: BSB Patentanwälte Schütte & Engelen Partnerschaft mbB  Am Markt 10 59302 Oelde 59302 Oelde (DE)