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EP 4 329 932 A1

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(43) Date of publication: 06.03.2024 Bulletin 2024/10 (21) Application number: 22726012.2 (22) Date of filing: 26.04.2022

(51) International Patent Classification (IPC):  B01J 20/24(2006.01) C02F 1/28(2023.01) C11D 17/00(2006.01) B01J 20/32(2006.01) C11D 3/22(2006.01) C08L 1/02(2006.01) (52) Cooperative Patent Classification (CPC): B01J 20/24; B01J 20/3212; B01J 20/3248; C02F 1/286; C11D 3/227; Y02A 50/30; C08L 1/08; C08L 1/04; C08B 15/06; C08B 15/02; C11D 3/48; C02F 2307/12; C02F 2103/002 (86) International application number: PCT/EP2022/061122 (87) International publication number: WO 2022/229230 (03.11.2022 Gazette 2022/44)

(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 (30) Priority: 29.04.2021 LU 102795 (71) Applicant: Univerza v Mariboru 2000 Maribor (SI)	(72) Inventors: KOKOL, Vanja 2000 Maribor (SI) VIVOD, Vera 2000 Maribor (SI) NERAL, Branko 2000 Maribor (SI) MIHELIC, Ales 1000 Ljubljana (SI) (74) Representative: Patentni Biro AF d.o.o.  Kotnikova 32, p.p. 2706 1001 Ljubljana 1001 Ljubljana (SI)