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(11)

EP 4 117 813 A1

(12)

(43) Date of publication: 18.01.2023 Bulletin 2023/03 (21) Application number: 20722377.7 (22) Date of filing: 12.03.2020

(51) International Patent Classification (IPC):  B01J 21/06(2006.01) C09D 1/00(2006.01) B01J 35/00(2006.01) C09D 7/61(2018.01) (52) Cooperative Patent Classification (CPC): B01J 35/004; B01J 21/063; C09D 7/63; C09D 5/024; C08K 5/3462; B01J 37/16; B01J 37/08; B01J 37/0215; C02F 2305/10; C02F 1/725; C02F 1/32; C02F 2305/023 (86) International application number: PCT/IB2020/052240 (87) International publication number: WO 2021/181136 (16.09.2021 Gazette 2021/37)

(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) Applicant: UNIVERSITA' DEGLI STUDI DI CAGLIARI 09124 Cagliari (IT)	(72) Inventors: RICCI, Pier Carlo 09124 Cagliari (IT) PORCU, Stefania 09124 Cagliari (IT) (74) Representative: Primiceri, Maria Vittoria et al Praxi Intellectual Property S.p.A. Via Leonida Bissolati, 20 00187 Roma 00187 Roma (IT)