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(11)

EP 4 551 541 A1

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(43) Date of publication: 14.05.2025 Bulletin 2025/20 (21) Application number: 23758122.8 (22) Date of filing: 31.07.2023

(51) International Patent Classification (IPC):  C04B 28/14(2006.01) C04B 22/16(2006.01) C04B 22/06(2006.01) (52) Cooperative Patent Classification (CPC): C04B 28/14; C04B 28/147   C-Sets: C04B 28/14, C04B 22/064, C04B 22/143, C04B 22/147, C04B 22/148, C04B 22/16, C04B 24/06, C04B 24/10, C04B 24/123, C04B 40/0608; C04B 28/147, C04B 22/064, C04B 22/143, C04B 22/147, C04B 22/148, C04B 22/16, C04B 24/06, C04B 24/10, C04B 24/123, C04B 40/0608; (86) International application number: PCT/US2023/029110 (87) International publication number: WO 2024/030372 (08.02.2024 Gazette 2024/06)

(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: 05.08.2022 US 202263395440 P 14.03.2023 US 202318121368 (71) Applicant: Knauf Gips KG 97346 Iphofen (DE)	(72) Inventors: CIMAGLIO, Scott Grayslake, Illinois 60030 (US) VALLURI, Sriram K. Grayslake, Illinois 60030 (US) (74) Representative: BSB Patentanwälte Schütte & Engelen Partnerschaft mbB  Am Markt 10 59302 Oelde 59302 Oelde (DE)