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EP 4 739 429 A1

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(43) Date of publication: 13.05.2026 Bulletin 2026/20 (21) Application number: 24739518.9 (22) Date of filing: 03.07.2024

(51) International Patent Classification (IPC):  B01J 19/18(2006.01) C08F 10/00(2006.01) C08F 2/14(2006.01) C08F 2/01(2006.01) C08F 2/02(2006.01) C08F 2/00(2006.01) (52) Cooperative Patent Classification (CPC): B01J 19/1818; B01J 19/1837; B01J 19/1881   C-Sets: C08F 110/06, C08F 2/02; C08F 110/06, C08F 2/14; C08F 110/06, C08F 2/001; C08F 110/06, C08F 2/01; C08F 110/06, C08F 4/6465; C08F 110/06, C08F 4/6543; (86) International application number: PCT/EP2024/068743 (87) International publication number: WO 2025/012050 (16.01.2025 Gazette 2025/03)

(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: GE KH MA MD TN (30) Priority: 07.07.2023 EP 23184217 25.08.2023 EP 23193424 (71) Applicant: Basell Poliolefine Italia S.r.l. 20121 Milano (IT)	(72) Inventors: DI FEDERICO, Pier Luigi 44122 Ferrara (IT) BALESTRA, Enrico 44122 Ferrara (IT) ZANDEGIACOMO RIZIO, Anna 44122 Ferrara (IT) MACCABIANI, Guido 44122 Ferrara (IT) VITALE, Francesco 44122 Ferrara (IT) (74) Representative: LyondellBasell  c/o Basell Polyolefine GmbH Industriepark Hoechst, Bldg. E413 65926 Frankfurt am Main 65926 Frankfurt am Main (DE)