(19)

(11)

EP 4 271 766 A1

(12)

(43) Date of publication: 08.11.2023 Bulletin 2023/45 (21) Application number: 21847548.1 (22) Date of filing: 24.12.2021

(51) International Patent Classification (IPC):  C10B 47/30(2006.01) C10B 19/00(2006.01) C10B 53/02(2006.01) (52) Cooperative Patent Classification (CPC): C10B 53/02; C10B 19/00; C10K 1/026; C10B 53/07; C10G 1/02; C10G 1/10; C10B 7/10 (86) International application number: PCT/IT2021/050426 (87) International publication number: WO 2022/144942 (07.07.2022 Gazette 2022/27)

(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: 29.12.2020 IT 202000032600 (71) Applicant: Benzi & Partners S.r.l. 15050 Carbonara Scrivia (IT)	(72) Inventor: BENZI, Giuseppe 15050 CARBONARA SCRIVIA (IT) (74) Representative: Garavelli, Paolo  A.BRE.MAR. S.R.L. Consulenza in Proprietà Industriale Via Servais 27 10146 Torino 10146 Torino (IT)