(19)

(11)

EP 4 401 582 A2

(12)

(88) Date of publication A3: 27.04.2023 (43) Date of publication: 24.07.2024 Bulletin 2024/30 (21) Application number: 22785792.7 (22) Date of filing: 15.09.2022

(51) International Patent Classification (IPC):  A24C 5/34(2006.01) A24C 5/345(2006.01) (52) Cooperative Patent Classification (CPC): A24C 5/345; A24C 5/3412; G01N 21/952 (86) International application number: PCT/IB2022/058702 (87) International publication number: WO 2023/042112 (23.03.2023 Gazette 2023/12)

(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: 17.09.2021 IT 202100023942 (71) Applicant: G.D S.p.A. 40133 Bologna (IT)	(72) Inventors: COPPI, Dalia 40133 Bologna (IT) VASUMINI, Riccardo 40133 Bologna (IT) GAMBERINI, Giuliano 40133 Bologna (IT) (74) Representative: Conti, Marco  Bugnion S.p.A. Via di Corticella, 87 40128 Bologna 40128 Bologna (IT)