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EP 4 577 581 A1

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(43) Date of publication: 02.07.2025 Bulletin 2025/27 (21) Application number: 23800444.4 (22) Date of filing: 01.11.2023

(51) International Patent Classification (IPC):  C08F 2/01(2006.01) B01J 3/04(2006.01) B01J 3/02(2006.01) C08F 10/00(2006.01) (52) Cooperative Patent Classification (CPC): C08F 2/01; C08F 10/00; C08F 2400/04; C08F 2400/02; B01J 3/02; B01J 3/04; B01J 2204/002; B01J 2219/00033; B01J 2219/00164   C-Sets: C08F 10/00, C08F 2/01; (86) International application number: PCT/EP2023/080477 (87) International publication number: WO 2024/094758 (10.05.2024 Gazette 2024/19)

(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: 01.11.2022 EP 22204853 (71) Applicant: Basell Polyolefine GmbH 50389 Wesseling (DE)

(72) Inventors: KHAYRULLIN, Danir 65926 Frankfurt/M. (DE) MOHRBUTTER, Juergen 65926 Frankfurt/M. (DE) WOLF, Christoph 65926 Frankfurt/M. (DE) FINETTE, Andre-Armand 65926 Frankfurt/M. (DE) DEUERLING, Michael 65926 Frankfurt / M. (DE) WOLFRAM, Sven 65926 Frankfurt/M. (DE) (74) Representative: LyondellBasell  c/o Basell Polyolefine GmbH Industriepark Hoechst, Bldg. E413 65926 Frankfurt am Main 65926 Frankfurt am Main (DE)