(19)

(11)

EP 4 161 297 A1

(12)

(43) Date of publication: 12.04.2023 Bulletin 2023/15 (21) Application number: 21727589.0 (22) Date of filing: 25.05.2021

(51) International Patent Classification (IPC):  A24C 5/32(2006.01) A24C 5/01(2020.01) A24D 3/02(2006.01) (52) Cooperative Patent Classification (CPC): A24D 3/0287; A24C 5/326; A24C 5/01 (86) International application number: PCT/IB2021/054508 (87) International publication number: WO 2021/250489 (16.12.2021 Gazette 2021/50)

(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: 08.06.2020 IT 202000013480 (71) Applicant: G.D S.p.A. 40133 Bologna (IT)	(72) Inventors: ESPOSTI, Marco 40133 Bologna (IT) GAMBERINI, Giuliano 40133 Bologna (IT) (74) Representative: Bianciardi, Ezio  Bugnion S.p.A. Via di Corticella, 87 40128 Bologna 40128 Bologna (IT)