(19)

(11)

EP 4 127 201 A1

(12)

(43) Date of publication: 08.02.2023 Bulletin 2023/06 (21) Application number: 21722286.8 (22) Date of filing: 30.03.2021

(51) International Patent Classification (IPC):  C12P 7/64(1980.01) C12N 9/02(1980.01) (52) Cooperative Patent Classification (CPC): C12P 7/6463; C12P 7/6472; C12N 9/0071; C12Y 114/19001 (86) International application number: PCT/IB2021/052620 (87) International publication number: WO 2021/198904 (07.10.2021 Gazette 2021/40)

(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: 31.03.2020 IT 202000006715 (71) Applicant: Pirelli Tyre S.p.A. 20126 Milano (IT)	(72) Inventors: BRANDUARDI, Paola 20126 Milano (IT) DI LORENZO, Raffaella Desiré 20126 Milano (IT) (74) Representative: PGA S.p.A.  Via Mascheroni, 31 20145 Milano 20145 Milano (IT)