(19)

(11)

EP 4 346 494 A1

(12)

(43) Date of publication: 10.04.2024 Bulletin 2024/15 (21) Application number: 22726297.9 (22) Date of filing: 05.05.2022

(51) International Patent Classification (IPC):  A44B 1/30(2006.01) (52) Cooperative Patent Classification (CPC): A44B 1/30; A41H 37/10; A44B 1/02 (86) International application number: PCT/IB2022/054164 (87) International publication number: WO 2022/234510 (10.11.2022 Gazette 2022/45)

(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: 05.05.2021 IT 202100011429 (71) Applicant: Spring 85 S.p.a. 35020 Maserà di Padova (IT)	(72) Inventor: FAVARATO, Carlo 35020 Maserà di Padova (IT) (74) Representative: Leganza, Alessandro  F.I.S. - Fabbrica Italiana Sintetici S.p.A. Viale Milano, 26 36075 Montecchio Maggiore (VI) 36075 Montecchio Maggiore (VI) (IT)