(19)

(11)

EP 4 244 196 A1

(12)

(43) Date of publication: 20.09.2023 Bulletin 2023/38 (21) Application number: 20815712.3 (22) Date of filing: 12.11.2020

(51) International Patent Classification (IPC):  C04B 28/34(2006.01) C04B 12/02(2006.01) (52) Cooperative Patent Classification (CPC): C04B 28/34; C04B 2111/00637; C04B 2111/00517; C04B 2111/00525; C04B 2111/00482; C04B 12/025   C-Sets: C04B 28/34, C04B 14/304; (86) International application number: PCT/EP2020/000191 (87) International publication number: WO 2022/100808 (19.05.2022 Gazette 2022/20)

(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 (71) Applicant: Knauf Gips KG 97346 Iphofen (DE)	(72) Inventors: BAESE, Rauno 97072 Würzburg (DE) KRAWTSCHENKO, Nina 97346 Iphofen (DE) ENGERT, Christian 97350 Mainbernheim (DE)