(19)

(11)

EP 3 774 102 A1

(12)

(43) Date of publication: 17.02.2021 Bulletin 2021/07 (21) Application number: 19721095.8 (22) Date of filing: 27.03.2019

(51) International Patent Classification (IPC):  B21C 3/04(2006.01) B21C 3/14(2006.01) B21C 3/12(2006.01) (86) International application number: PCT/IB2019/052488 (87) International publication number: WO 2019/186421 (03.10.2019 Gazette 2019/40)

(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: 28.03.2018 IT 201800004031 (71) Applicant: PAN CHEMICALS S.P.A. 24060 Rogno (BG) (IT)	(72) Inventors: VAGO, Luigi 24060 Rogno (BERGAMO) (IT) VAGO, Edgardo 24060 Rogno (BERGAMO) (IT) (74) Representative: Colombo, Stefano Paolo et al Marchi & Partners S.r.l. Via Vittor Pisani, 13 20124 Milano 20124 Milano (IT)