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EP 4 396 151 A1

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(43) Date of publication: 10.07.2024 Bulletin 2024/28 (21) Application number: 22797316.1 (22) Date of filing: 26.09.2022

(51) International Patent Classification (IPC):  C04B 35/634(2006.01) C04B 35/626(2006.01) C04B 35/468(2006.01) (52) Cooperative Patent Classification (CPC): C04B 35/6342; C04B 2235/9661; C04B 35/63488; C04B 35/4682; C04B 35/6261; C04B 2235/6025; C04B 2235/61 (86) International application number: PCT/EP2022/076702 (87) International publication number: WO 2023/061741 (20.04.2023 Gazette 2023/16)

(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: 11.10.2021 EP 21201836 (71) Applicant: Kuraray Europe GmbH 65795 Hattersheim am Main (DE)	(72) Inventors: BECKER, Greta 65428 Rüsselsheim (DE) MUMMY, Florian 60325 Frankfurt am Main (DE) FRANK, Michael 55268 Nieder-Olm (DE) (74) Representative: Janßen, Christian Oliver  Kuraray Europe GmbH Phillip-Reis-Straße 4 65795 Hattersheim 65795 Hattersheim (DE)