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(11)

EP 3 921 144 A1

(12)

(43) Date of publication: 15.12.2021 Bulletin 2021/50 (21) Application number: 20705125.1 (22) Date of filing: 06.02.2020

(51) International Patent Classification (IPC):  B29C 70/44(2006.01) C08J 5/04(2006.01) B29C 70/08(2006.01) D04H 1/10(2006.01) (52) Cooperative Patent Classification (CPC): C08J 5/047; C08J 5/042; B29C 70/12; D04H 1/58; B29C 70/443; C08J 2363/00; D04H 1/43835; D04H 1/558; D04H 1/4242; D04H 1/4209; B29C 70/548 (86) International application number: PCT/EP2020/052951 (87) International publication number: WO 2020/161220 (13.08.2020 Gazette 2020/33)

(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: 06.02.2019 IT 201900001681 (71) Applicant: Frattelli Mazzocchia S.p.A. 03100 Frosinone (FR) (IT)	(72) Inventors: PAPETTI, Roberto 03100 Frosinone (FR) (IT) SISTO, Vittorio 03100 Frosinone (FR) (IT) DAVID, Francesco 03100 Frosinone (FR) (IT) TAGLIAFERRI, Vincenzo 80131 Naples (IT) (74) Representative: Tagliafico, Giulia  Litapat Via Simone Martini, 125 00142 Roma 00142 Roma (IT)