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(11)

EP 4 347 144 A1

(12)

(43) Date of publication: 10.04.2024 Bulletin 2024/15 (21) Application number: 22810714.0 (22) Date of filing: 25.05.2022

(51) International Patent Classification (IPC):  B09B 3/00(2022.01) C04B 28/26(2006.01) C04B 28/00(2006.01) C04B 14/46(2006.01) (52) Cooperative Patent Classification (CPC): C04B 14/46; B09B 3/00; C04B 28/006   C-Sets: C04B 14/46, C04B 20/023, C04B 20/026; C04B 28/006, C04B 14/46; (86) International application number: PCT/FI2022/050362 (87) International publication number: WO 2022/248771 (01.12.2022 Gazette 2022/48)

(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: 26.05.2021 FI 20215619 (71) Applicant: Oulun yliopisto 90570 Oulu (FI)	(72) Inventors: YLINIEMI, Juho 90570 Oulu (FI) LUUKKONEN, Tero 90570 Oulu (FI) ILLIKAINEN, Mirja 90570 Oulu (FI) DABBEBI, Rawia 90570 Oulu (FI) RAMASWAMY, Rajeswari 90570 Oulu (FI) (74) Representative: Kolster Oy Ab  Salmisaarenaukio 1 P.O. Box 204 00181 Helsinki 00181 Helsinki (FI)