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(11)

EP 4 816 422 A1

(12)

(43) Date of publication: 07.10.2026 Bulletin 2026/41 (21) Application number: 24817564.8 (22) Date of filing: 29.11.2024

(51) International Patent Classification (IPC):  C08F 210/02(2006.01) C08K 5/14(2006.01) H01B 3/18(2006.01) (52) Cooperative Patent Classification (CPC): C08F 2400/04; C08F 210/02; H01B 3/441   C-Sets: C08K 5/14, C08L 23/0815; C08F 210/02, C08F 2/00; C08F 210/02, C08F 2/38; C08F 210/02, C08F 236/20, C08F 2500/12, C08F 2500/29; C08F 210/02, C08F 236/20, C08F 220/1804, C08F 2500/12, C08F 2500/29; (86) International application number: PCT/EP2024/084189 (87) International publication number: WO 2025/114582 (05.06.2025 Gazette 2025/23)

(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: 30.11.2023 EP 23213540 (71) Applicant: Borealis GmbH 1020 Vienna (AT)	(72) Inventors: SMEDBERG, Annika 444 86 Stenungsund (SE) WANNERSKOG, Åsa 444 86 Stenungsund (SE) VOIGT, Björn 444 86 Stenungsund (SE) HJÄRTFORS, Emil 444 86 Stenungsund (SE) HERMANSSON, Simon 444 86 Stenungsund (SE) YALALOV, Denis 444 86 Stenungsund (SE) LARSSON, Pernilla 444 86 Stenungsund (SE) (74) Representative: Dehns  10 Old Bailey London EC4M 7NG London EC4M 7NG (GB)