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EP 3 973 152 A1

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(43) Date of publication: 30.03.2022 Bulletin 2022/13 (21) Application number: 20731958.3 (22) Date of filing: 18.05.2020

(51) International Patent Classification (IPC):  F01N 3/20(2006.01) F01N 13/18(2010.01) (52) Cooperative Patent Classification (CPC): F01N 3/2066; F01N 2610/02; F01N 2610/10; F01N 2610/14; F01N 13/1822; F01N 13/1805; F01N 13/1827; F01N 2240/16; F01N 13/1888; Y02T 10/12 (86) International application number: PCT/IB2020/054675 (87) International publication number: WO 2020/234739 (26.11.2020 Gazette 2020/48)

(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: 20.05.2019 IT 201900007016 (71) Applicant: HUTCHINSON S.r.l. 10098 Rivoli (TO) (IT)	(72) Inventors: ALBONICO, Angelo Mario Adamo 28100 Novara (IT) NOTO, Giuseppe 10141 Torino (IT) OLIVA, Gaetana Cristiana 10024 Moncalieri (TO) (IT) BAGNASCO, Maurizio 10024 Moncalieri (TO) (IT) BERTALMIO, Roberto 10043 Orbassano (TO) (IT) (74) Representative: Vitillo, Giuseppe  Barzanò & Zanardo Milano S.p.A. Corso Vittorio Emanuele II, 61 10128 Torino 10128 Torino (IT)