(19)

(11)

EP 4 161 713 A1

(12)

(43) Date of publication: 12.04.2023 Bulletin 2023/15 (21) Application number: 21769671.5 (22) Date of filing: 23.08.2021

(51) International Patent Classification (IPC):  B09C 1/08(2006.01) (52) Cooperative Patent Classification (CPC): B09C 1/08 (86) International application number: PCT/EP2021/073265 (87) International publication number: WO 2023/025367 (02.03.2023 Gazette 2023/09)

(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 (71) Applicant: Züblin Umwelttechnik GmbH 71706 Markgröningen (DE)	(72) Inventor: EDEL, Hans-Georg 71706 Markgröningen (DE) (74) Representative: dompatent von Kreisler Selting Werner - Partnerschaft von Patent- und Rechtsanwälten mbB  Deichmannhaus am Dom Bahnhofsvorplatz 1 50667 Köln 50667 Köln (DE)