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(11)

EP 4 680 670 A1

(12)

(43) Date of publication: 21.01.2026 Bulletin 2026/04 (21) Application number: 24710131.4 (22) Date of filing: 13.03.2024

(51) International Patent Classification (IPC):  C08L 23/00(2006.01) (52) Cooperative Patent Classification (CPC): C08L 23/00; C08L 23/04; C08L 2203/16   C-Sets: C08L 23/00, C08L 77/00; C08L 23/04, C08L 77/00; (86) International application number: PCT/EP2024/056709 (87) International publication number: WO 2024/189104 (19.09.2024 Gazette 2024/38)

(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: 13.03.2023 EP 23305336 (71) Applicant: ARKEMA France 92800 Puteaux (FR)

(72) Inventors: WEAVER, Keith KING OF PRUSSIA, Pennsylvania 19406 (US) ALTHOUSE, David KING OF PRUSSIA, Pennsylvania 19406 (US) MCDONOUGH, John KING OF PRUSSIA, Pennsylvania 19406 (US) TOBIN, Lori KING OF PRUSSIA, Pennsylvania 19406 (US) PINEAU, Quentin 27470 SERQUIGNY (FR) REYNA-VALENCIA, Alejandra 27470 SERQUIGNY (FR) (74) Representative: Arkema Patent  Arkema France DRD-DPI 51, Esplanade du Général de Gaulle CS 10478 92907 Paris La Défense Cedex 92907 Paris La Défense Cedex (FR)