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(11)

EP 4 543 629 A1

(12)

(43) Date of publication: 30.04.2025 Bulletin 2025/18 (21) Application number: 23827730.5 (22) Date of filing: 19.06.2023

(51) International Patent Classification (IPC):  B24B 3/54(2006.01) B24B 49/00(2012.01) B24B 49/12(2006.01) (52) Cooperative Patent Classification (CPC): B24B 49/12; B24B 27/0038; B24B 51/00 (86) International application number: PCT/US2023/025650 (87) International publication number: WO 2023/249903 (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: 22.06.2022 US 202263366806 P (71) Applicant: 3M Innovative Properties Company Saint Paul, MN 55133-3427 (US)	(72) Inventors: LARKING, Paul Bracknell Berkshire RG12 8HT (GB) MOORE, Matthew, D. Saint Paul, MN 55133-3427 (US) GHADERI, Alireza Saint Paul, MN 55133-3427 (US) KECK, Walter, E., G. 41453 Neuss (DE) NORDIN, Kjell, O. 19189 Solluntuna (SE) (74) Representative: Vossius & Partner Patentanwälte Rechtsanwälte mbB  Siebertstraße 4 81675 München 81675 München (DE)