(19)

(11)

EP 4 824 119 A1

(12)

(43) Date of publication: 21.10.2026 Bulletin 2026/43 (21) Application number: 24846789.6 (22) Date of filing: 16.12.2024

(51) International Patent Classification (IPC):  C08F 210/02(2006.01) (52) Cooperative Patent Classification (CPC): C08F 210/02; C08F 2400/04   C-Sets: C08F 210/02, C08F 236/22, C08F 2500/02, C08F 2500/03, C08F 2500/20, C08F 2500/27, C08F 2500/33, C08F 2500/34; C08F 210/02, C08F 236/22, C08F 2500/02, C08F 2500/20, C08F 2500/27, C08F 2500/33, C08F 2500/34; C08F 210/02, C08F 236/22, C08F 2500/04, C08F 2500/20, C08F 2500/27, C08F 2500/33, C08F 2500/34; C08F 210/02, C08F 236/22, C08F 2500/02, C08F 2500/04, C08F 2500/20, C08F 2500/27, C08F 2500/33, C08F 2500/34; C08F 210/02, C08F 236/22, C08F 2500/02, C08F 2500/03, C08F 2500/09, C08F 2500/17, C08F 2500/20, C08F 2500/27, C08F 2500/33, C08F 2500/34; C08F 210/02, C08F 4/04; C08F 210/02, C08F 4/28; C08F 210/02, C08F 2/00; C08F 210/02, C08F 4/34; C08F 210/02, C08F 236/08, C08F 2500/02, C08F 2500/03, C08F 2500/20, C08F 2500/27, C08F 2500/33, C08F 2500/34; (86) International application number: PCT/US2024/060370 (87) International publication number: WO 2025/129179 (19.06.2025 Gazette 2025/25)

(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: 15.12.2023 US 202363610547 P (71) Applicant: Braskem S.A. 42810-000 Camaçari BA (BR)	(72) Inventors: GOMES SIMANKE, Adriane 05501-050 São Paulo City SP (BR) MOHAMMADI, Hadi Philadelphia, PA 19103 (US) CANGUSSU, Manoela Ellwanger 05501-050 São Paulo City SP (BR) HINTENLANG, Sascha Philadelphia, PA 19103 (US) BUSCH, Markus Philadelphia, PA 19103 (US) KENNEDY, Jayme Philadelphia, PA 19103 (US) (74) Representative: Osha BWB  2, rue de la Paix 75002 Paris 75002 Paris (FR)