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EP 4 561 959 A1

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(43) Date of publication: 04.06.2025 Bulletin 2025/23 (21) Application number: 23764931.4 (22) Date of filing: 04.09.2023

(51) International Patent Classification (IPC):  C04B 26/12(2006.01) C08J 5/18(2006.01) (52) Cooperative Patent Classification (CPC): C04B 26/125; C04B 14/42; C04B 14/064; C08J 5/0405; C08J 5/043; C08J 5/046; C08J 2361/28; C04B 30/02; C04B 2111/28   C-Sets: C04B 26/125, C04B 14/42, C04B 14/064, C04B 14/4625, C04B 16/0675; C04B 26/125, C04B 14/42, C04B 14/064, C04B 14/4631, C04B 16/0675; C04B 26/125, C04B 14/42, C04B 14/064, C04B 14/4656, C04B 16/0675; C04B 30/02, C04B 14/42, C04B 14/064, C04B 14/4656, C04B 16/0675, C04B 24/305; (86) International application number: PCT/EP2023/074174 (87) International publication number: WO 2024/052282 (14.03.2024 Gazette 2024/11)

(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: 07.09.2022 EP 22194399 (71) Applicant: Armacell Enterprise GmbH & Co. KG 12529 Schönefeld OT Waltersdorf (DE)	(72) Inventors: SOMBERG, Patric 48167 Münster (DE) HOLUB, Pavel 357 33 Loket (CZ) MÖLLER, Stephan 48167 Münster (DE) ZHENG, Zhicheng 48161 Münster (DE) (74) Representative: Vossius & Partner Patentanwälte Rechtsanwälte mbB  Siebertstrasse 3 81675 München 81675 München (DE)