(19)

(11)

EP 4 259 832 A1

(12)

(43) Date of publication: 18.10.2023 Bulletin 2023/42 (21) Application number: 21824700.5 (22) Date of filing: 08.12.2021

(51) International Patent Classification (IPC):  C14C 1/08(2006.01) (52) Cooperative Patent Classification (CPC): C14C 1/08 (86) International application number: PCT/NL2021/050744 (87) International publication number: WO 2022/124892 (16.06.2022 Gazette 2022/24)

(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: 09.12.2020 NL 2027083 (71) Applicant: Stahl International B.V. 5145 PE Waalwijk (NL)	(72) Inventor: VAN DER HAM, Andreas Gerardus Josephus Maria 5145 PE Waalwijk (NL) (74) Representative: V.O.  P.O. Box 87930 2508 DH Den Haag 2508 DH Den Haag (NL)