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(11)

EP 4 150 129 A1

(12)

(43) Date of publication: 22.03.2023 Bulletin 2023/12 (21) Application number: 21730655.4 (22) Date of filing: 13.05.2021

(51) International Patent Classification (IPC):  C22C 9/00(2006.01) C22C 9/04(2006.01) C22C 30/04(2006.01) C23C 28/02(2006.01) C25D 5/10(2006.01) C22C 9/02(2006.01) C22C 30/02(2006.01) C22C 30/06(2006.01) C25D 3/58(2006.01) C22C 28/00(2006.01) (52) Cooperative Patent Classification (CPC): C22C 9/00; C22C 9/02; C22C 9/04; C22C 30/02; C22C 30/04; C22C 30/06; C25D 3/58; C25D 5/10; C22C 28/00; C23C 28/021; C23C 28/023; C23C 30/00; C25D 3/56; C25D 3/60; C25D 5/12; C25D 5/14; C25D 7/00; C25D 7/005; C25D 5/627 (86) International application number: PCT/IB2021/054079 (87) International publication number: WO 2021/229481 (18.11.2021 Gazette 2021/46)

(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: 15.05.2020 IT 202000011203 (71) Applicant: Bluclad S.r.l. 59100 Prato (IT)	(72) Inventors: CAVACIOCCHI, Lorenzo 50058 Signa (IT) LUCONI, Leandro 59105 Carmignano (IT) SIMONELLI, Matteo 50019 Sesto Fiorentino (IT) LAVANGA, Mario 50013 Campi Bisenzio (IT) (74) Representative: Valenza, Silvia et al Notarbartolo & Gervasi S.p.A. Viale Achille Papa, 30 20149 Milano 20149 Milano (IT)