(19)

(11)

EP 3 914 625 A1

(12)

(43) Date of publication: 01.12.2021 Bulletin 2021/48 (21) Application number: 20705004.8 (22) Date of filing: 24.01.2020

(51) International Patent Classification (IPC):  C08B 31/12(2006.01) C02F 1/56(2006.01) C08L 3/08(2006.01) (52) Cooperative Patent Classification (CPC): C08B 31/125; C02F 2101/22; C02F 2101/163; C02F 1/56; C08L 3/08 (86) International application number: PCT/EP2020/051833 (87) International publication number: WO 2020/152360 (30.07.2020 Gazette 2020/31)

(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: 24.01.2019 IT 201900001071 (71) Applicant: Trotta, Francesco 14100 Asti (IT)	(72) Inventor: Trotta, Francesco 14100 Asti (IT) (74) Representative: Masala, Gian Tomaso et al Notarbartolo & Gervasi S.p.A. Viale Achille Papa, 30 20149 Milano 20149 Milano (IT)