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(11)

EP 4 326 213 A2

(12)

(88) Date of publication A3: 01.12.2022 (43) Date of publication: 28.02.2024 Bulletin 2024/09 (21) Application number: 22744508.7 (22) Date of filing: 22.04.2022

(51) International Patent Classification (IPC):  A61F 13/534(2006.01) A61L 15/42(2006.01) A61L 15/24(2006.01) C08J 9/00(2006.01) (52) Cooperative Patent Classification (CPC): A61F 13/534; A61F 2013/530817; A61F 2013/530824; A61F 2013/530839; A61F 2013/530905; A61L 15/24; A61L 15/425; C08J 9/32; C08J 2203/22; C08J 2205/05; C08J 9/283; C08J 2207/12 (86) International application number: PCT/IB2022/053795 (87) International publication number: WO 2022/224224 (27.10.2022 Gazette 2022/43)

(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: 23.04.2021 US 202163179048 P (71) Applicant: Glatfelter Gernsbach GmbH 76593 Gernsbach (DE)	(72) Inventors: VOLKMER, Reno 16928 Pritzwalk (DE) SEGER, Bernd 76332 Bad Herrenalb (DE) TISCHER, Thomas 76131 Karlsruhe (DE) KUEHN, Joerg 76470 Oetigheim (DE) LADANJI, Dijana 76593 Gernsbach (DE) (74) Representative: Grünecker Patent- und Rechtsanwälte PartG mbB  Leopoldstraße 4 80802 München 80802 München (DE)