(19)

(11)

EP 3 983 350 A2

(12)

(88) Date of publication A3: 22.07.2021 (43) Date of publication: 20.04.2022 Bulletin 2022/16 (21) Application number: 20851739.1 (22) Date of filing: 13.08.2020

(51) International Patent Classification (IPC):  C04B 2/00(2006.01) (52) Cooperative Patent Classification (CPC): C04B 22/062; C04B 2111/00008; C04B 14/26; C04B 2/04; C04B 2111/547; C04B 2111/72; C04B 20/026; C04B 28/10; C01F 11/02; C01P 2004/51; C01P 2004/62   C-Sets: C04B 20/026; (86) International application number: PCT/TR2020/050705 (87) International publication number: WO 2021/029845 (18.02.2021 Gazette 2021/07)

(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: 15.08.2019 TR 201912292 (71) Applicant: ORTA DOGU TEKNIK UNIVERSITESI 06800 Ankara (TR)	(72) Inventors: DAG, Fulya Karahan Ankara (TR) CANER-SALTIK, Emine N. Ankara (TR) TAVUKÇUOGLU, Ayse Ankara (TR) (74) Representative: Bal, Gülden  Yalciner Patent and Consulting Ltd. Tunus Caddesi, No:85/3-4 Kavaklidere 06680 Ankara 06680 Ankara (TR)