(19)

(11)

EP 4 426 796 A2

(12)

(88) Date of publication A3: 23.03.2023 (43) Date of publication: 11.09.2024 Bulletin 2024/37 (21) Application number: 22813713.9 (22) Date of filing: 03.11.2022

(51) International Patent Classification (IPC):  C10G 1/08(2006.01) C10B 57/12(2006.01) C10G 11/00(2006.01) C10B 53/07(2006.01) C10B 47/34(2006.01) C10B 53/00(2006.01) C10B 47/18(2006.01) (52) Cooperative Patent Classification (CPC): C10G 1/08; C10B 47/34; C10B 47/18; C10B 53/07; C10G 1/10; C10B 57/06; C08J 11/12 (86) International application number: PCT/IB2022/060598 (87) International publication number: WO 2023/275855 (05.01.2023 Gazette 2023/01)

(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 ME MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA Designated Validation States: KH MA MD TN (30) Priority: 04.11.2021 IT 202100028121 (71) Applicant: Firmin S.r.l. 38015 Lavis, Trento (IT)	(72) Inventor: MINZOCCHI, Nicola 38015 Lavis, TRENTO (IT) (74) Representative: Zanettin, Gianluigi et al Jacobacci & Partners S.p.A. Piazza Mario Saggin, 2 35131 Padova 35131 Padova (IT)