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(11)

EP 4 577 690 A1

(12)

(43) Date of publication: 02.07.2025 Bulletin 2025/27 (21) Application number: 23749065.1 (22) Date of filing: 31.07.2023

(51) International Patent Classification (IPC):  D01D 5/34(2006.01) D04H 3/007(2012.01) D01F 8/06(2006.01) D04H 3/147(2012.01) (52) Cooperative Patent Classification (CPC): D01F 8/06; D01D 5/34; D04H 3/007; D04H 3/147 (86) International application number: PCT/EP2023/071111 (87) International publication number: WO 2024/041848 (29.02.2024 Gazette 2024/09)

(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: 22.08.2022 EP 22191483 (71) Applicant: SABIC Global Technologies B.V. 4612 PX Bergen op Zoom (NL)	(72) Inventors: LIU, Yingxin 6160 GA Geleen (NL) COURTECUISSE, François Guillaume Sébastien 6160 GA Geleen (NL) DE BROUWER, Johannes 6160 GA Geleen (NL) (74) Representative: Sabic Intellectual Property Group  Sabic Intellectual Property Department P.O. Box 3008 6160 GA Geleen 6160 GA Geleen (NL)