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(11)

EP 4 798 644 A1

(12)

(43) Date of publication: 02.09.2026 Bulletin 2026/36 (21) Application number: 24791430.2 (22) Date of filing: 23.10.2024

(51) International Patent Classification (IPC):  C08G 59/06(2006.01) C08G 59/50(2006.01) C07D 303/23(2006.01) C08G 59/30(2006.01) C08J 11/26(2006.01) (52) Cooperative Patent Classification (CPC): C08G 59/302; C08G 59/50; C08G 59/28; C08J 11/14; C08J 11/28; C08J 2363/00; C07D 303/23 (86) International application number: PCT/EP2024/079906 (87) International publication number: WO 2025/087946 (01.05.2025 Gazette 2025/18)

(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: 24.10.2023 EP 23383089 (71) Applicant: Fundació Eurecat 08290 Cerdanyola del Vallès (Barcelona) (ES)	(72) Inventors: VERDUGO FERNÁNDEZ, Pedro Manuel 43007 Tarragona (ES) SANTIAGO ABRAIRA, David Manuel 43007 Tarragona (ES) (74) Representative: ABG Intellectual Property Law, S.L.  Avenida de Burgos, 16D Edificio Euromor 28036 Madrid 28036 Madrid (ES)