(19)

(11)

EP 4 392 597 A1

(12)

(43) Date of publication: 03.07.2024 Bulletin 2024/27 (21) Application number: 22768956.9 (22) Date of filing: 22.08.2022

(51) International Patent Classification (IPC):  C25B 1/04(2021.01) C25B 9/19(2021.01) C25B 9/015(2021.01) C25B 13/02(2006.01) (52) Cooperative Patent Classification (CPC): C25B 1/04; C25B 9/015; C25B 9/19; C25B 13/02; Y02E 60/36 (86) International application number: PCT/IB2022/057834 (87) International publication number: WO 2023/026164 (02.03.2023 Gazette 2023/09)

(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: 24.08.2021 IT 202100022247 (71) Applicant: Acca Industries Srl 20123 Milano (IT)	(72) Inventors: HUMMER, Andreas 20123 MILANO (IT) CORSI, Stefano 20123 MILANO (IT) LUSARDI, Claire 20123 MILANO (IT) MASOTTI, Aldo 20123 MILANO (IT) (74) Representative: Lissandrini, Marco  Bugnion S.p.A. Via Pancaldo 68 37138 Verona 37138 Verona (IT)