(19)

(11)

EP 4 798 771 A1

(12)

(43) Date of publication: 02.09.2026 Bulletin 2026/36 (21) Application number: 24795208.8 (22) Date of filing: 28.10.2024

(51) International Patent Classification (IPC):  C25F 3/16(2006.01) B23H 5/08(2006.01) C25F 7/00(2006.01) (52) Cooperative Patent Classification (CPC): C25F 3/16; C25F 7/00; B23H 5/08 (86) International application number: PCT/EP2024/080378 (87) International publication number: WO 2025/088203 (01.05.2025 Gazette 2025/18)

(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: GE KH MA MD TN (30) Priority: 26.10.2023 EP 23206282 27.10.2023 EP 23383103 03.11.2023 EP 23383127 (71) Applicant: Drylyte, S.L. 08035 Barcelona (ES)	(72) Inventors: COVES, Josep Lluis 08035 Barcelona (ES) MIRAS, Jaume 08035 Barcelona (ES) GIDON, Antoine 08035 Barcelona (ES) (74) Representative: Elion IP, S.L.  Paseo Castellana, 150-4 dcha 28046 Madrid 28046 Madrid (ES)