(19)

(11)

EP 3 732 383 A1

(12)

(43) Date of publication: 04.11.2020 Bulletin 2020/45 (21) Application number: 19706318.3 (22) Date of filing: 04.02.2019

(51) International Patent Classification (IPC):  F16F 1/373(2006.01) (86) International application number: PCT/IB2019/050866 (87) International publication number: WO 2019/155342 (15.08.2019 Gazette 2019/33)

(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: 06.02.2018 IT 201800002429 (71) Applicant: Sapa S.P.A. 80121 Napoli (IT)	(72) Inventor: AFFINITA, Antonio 80121 Napoli (NA) (IT) (74) Representative: Fiammenghi, Eva et al Fiammenghi - Fiammenghi Via delle Quattro Fontane, 31 00184 Roma 00184 Roma (IT)