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EP 4 444 691 A1

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(43) Date of publication: 16.10.2024 Bulletin 2024/42 (21) Application number: 21823929.1 (22) Date of filing: 10.12.2021

(51) International Patent Classification (IPC):  C07C 67/03(2006.01) C10L 10/18(2006.01) C09J 167/04(2006.01) C08G 63/00(2006.01) (52) Cooperative Patent Classification (CPC): C07C 67/03; C10L 10/00; C08G 63/912; C10L 1/19; C08G 63/06; C10L 2200/0423; C10L 2270/023; C10L 1/224   C-Sets: C07C 67/03, C07C 69/675; (86) International application number: PCT/EP2021/085203 (87) International publication number: WO 2023/104316 (15.06.2023 Gazette 2023/24)

(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 MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (71) Applicants: Hes-so Valais-wallis 1950 Sion (CH) HES-SO Fribourg 1700 Fribourg (CH)	(72) Inventors: MARTI, Roger 1700 Freiburg (CH) DARDANO, Florian 1700 Freiburg (CH) ALBERGATI, Luce 1700 Freiburg (CH) SILVESTRE, Ricardo 1700 Freiburg (CH) ZINN, Manfred 1950 Sion (CH) AMSTUTZ, Véronique 1950 Sion (CH) HANIK, Nils 1950 Sion (CH) (74) Representative: Hepp Wenger Ryffel AG  Friedtalweg 5 9500 Wil 9500 Wil (CH)