(19)
(11) EP 4 072 779 A1

(12)

(43) Date of publication:
19.10.2022 Bulletin 2022/42

(21) Application number: 20825244.5

(22) Date of filing: 07.12.2020
(51) International Patent Classification (IPC): 
B24D 3/00(2006.01)
B24D 11/02(2006.01)
B24D 11/00(2006.01)
B24D 18/00(2006.01)
(52) Cooperative Patent Classification (CPC):
B24D 3/007; B24D 3/004; B24D 11/001; B24D 11/005; B24D 11/02; B24D 18/0072
(86) International application number:
PCT/IB2020/061600
(87) International publication number:
WO 2021/116882 (17.06.2021 Gazette 2021/24)
(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: 09.12.2019 US 201962945244 P

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

(72) Inventors:
  • LI, Junting
    Saint Paul, Minnesota 55133-3427 (US)
  • ZHANG, Jing
    Saint Paul, Minnesota 55133-3427 (US)
  • SONG, Liming
    Saint Paul, Minnesota 55133-3427 (US)
  • LE, Jimmy M.
    Saint Paul, Minnesota 55133-3427 (US)
  • SANOCKI, Stephen M.
    Saint Paul, Minnesota 55133-3427 (US)
  • GAO, Yaohua
    Saint Paul, Minnesota 55133-3427 (US)
  • CORDES, Paul J.
    Saint Paul, Minnesota 55133-3427 (US)
  • MUELLER, Gregory S.
    Saint Paul, Minnesota 55133-3427 (US)
  • THURBER, Ernest L.
    Saint Paul, Minnesota 55133-3427 (US)
  • LIU, Yuyang
    Saint Paul, Minnesota 55133-3427 (US)
  • MARTINEZ, Jaime A.
    Saint Paul, Minnesota 55133-3427 (US)
  • ANNEN, Michael J.
    Saint Paul, Minnesota 55133-3427 (US)

(74) Representative: De Clercq & Partners 
Edgard Gevaertdreef 10a
9830 Sint-Martens-Latem
9830 Sint-Martens-Latem (BE)

   


(54) ABRASIVE ARTICLE