(19)

(11)

EP 4 816 439 A1

(12)

(43) Date of publication: 07.10.2026 Bulletin 2026/41 (21) Application number: 24812827.4 (22) Date of filing: 25.11.2024

(51) International Patent Classification (IPC):  C08G 59/40(2006.01) C08G 65/18(2006.01) C09J 163/00(2006.01) C09D 163/00(2006.01) C08G 59/68(2006.01) C08G 65/26(2006.01) C09J 171/00(2006.01) C09D 171/00(2006.01) (52) Cooperative Patent Classification (CPC): C08G 65/18; C08G 65/2678; C08G 65/2687; C08G 59/4007; C08G 59/687; C09J 163/00; C09J 171/00; C09D 163/00; C09D 171/00 (86) International application number: PCT/EP2024/083451 (87) International publication number: WO 2025/114213 (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: 29.11.2023 EP 23307091 (71) Applicant: ARKEMA France 92800 Puteaux (FR)	(72) Inventors: YOUNG, Hannah Yorkshire LS22 7NS (GB) PLENDERLEITH, Richard Yorkshire LS22 7NS (GB) (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)