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(11)

EP 4 240 559 A1

(12)

(43) Date of publication: 13.09.2023 Bulletin 2023/37 (21) Application number: 21806390.7 (22) Date of filing: 01.11.2021

(51) International Patent Classification (IPC):  B24B 27/00(2006.01) B24D 3/00(2006.01) B24D 9/08(2006.01) B24D 13/14(2006.01) (52) Cooperative Patent Classification (CPC): B24B 27/0038; B24D 9/08; B24D 3/002 (86) International application number: PCT/IB2021/060096 (87) International publication number: WO 2022/097009 (12.05.2022 Gazette 2022/19)

(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: 06.11.2020 US 202063110580 P (71) Applicant: 3M Innovative Properties Company Saint Paul, Minnesota 55133-3427 (US)

(72) Inventors: JAVID, Samad Saint Paul, Minnesota 55133-3427 (US) ARTHUR, Jonathan B. Saint Paul, Minnesota 55133-3427 (US) RIDDLE, Justin A. Saint Paul, Minnesota 55133-3427 (US) FARLEY, Joseph B. Saint Paul, Minnesota 55133-3427 (US) HEMES, Brett R. Saint Paul, Minnesota 55133-3427 (US) STREY, Thomas J. Saint Paul, Minnesota 55133-3427 (US) (74) Representative: De Clercq & Partners  Edgard Gevaertdreef 10a 9830 Sint-Martens-Latem 9830 Sint-Martens-Latem (BE)