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EP 4 798 652 A1

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(43) Date of publication: 02.09.2026 Bulletin 2026/36 (21) Application number: 24882993.9 (22) Date of filing: 01.10.2024

(51) International Patent Classification (IPC):  C08J 11/14(2006.01) B01J 20/22(2006.01) C08L 67/03(2006.01) C08J 11/26(2006.01) B01J 31/16(2006.01) C08G 63/127(2006.01) (52) Cooperative Patent Classification (CPC): C08J 11/14; C08J 11/16; C08J 2367/02; B01J 31/1691 (86) International application number: PCT/SG2024/050637 (87) International publication number: WO 2025/090016 (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: 26.10.2023 SG 10202303032Y (71) Applicant: Agency for Science, Technology and Research Singapore 138632 (SG)	(72) Inventors: LIM, Yuan Chong Jason Singapore 138634 (SG) TAN, Tsai Yuan Tristan Singapore 138634 (SG) LOH, Wei Wei Singapore 138634 (SG) (74) Representative: Marks & Clerk LLP  15 Fetter Lane London EC4A 1BW London EC4A 1BW (GB)