(19)

(11)

EP 4 544 084 A1

(12)

(43) Date of publication: 30.04.2025 Bulletin 2025/18 (21) Application number: 23736871.7 (22) Date of filing: 20.06.2023

(51) International Patent Classification (IPC):  C14B 1/56(2006.01) B05C 11/04(2006.01) B05C 1/08(2006.01) C14C 11/00(2006.01) (52) Cooperative Patent Classification (CPC): C14B 1/56; C14C 11/00; B05C 1/0808; B05C 1/0813; B05C 1/0817 (86) International application number: PCT/IB2023/056364 (87) International publication number: WO 2023/248120 (28.12.2023 Gazette 2023/52)

(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 ME MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA Designated Validation States: KH MA MD TN (30) Priority: 21.06.2022 IT 202200013060 (71) Applicant: Rotacoat S.r.l. 56127 Pisa (PI) (IT)	(72) Inventors: MARCOLIN, Diego 56127 Pisa (IT) SIMONI, Lorenzo 56127 Pisa (IT) (74) Representative: Soldatini, Andrea et al Società Italiana Brevetti S.p.A. Corso dei Tintori, 25 50122 Firenze 50122 Firenze (IT)