(19)
(11) EP 4 225 532 A1

(12)

(43) Date of publication:
16.08.2023 Bulletin 2023/33

(21) Application number: 21762126.7

(22) Date of filing: 19.08.2021
(51) International Patent Classification (IPC): 
B24D 3/28(2006.01)
B24D 11/00(2006.01)
B24D 3/34(2006.01)
B24D 18/00(2006.01)
(52) Cooperative Patent Classification (CPC):
B24D 3/28; B24D 3/344; B24D 11/00; B24D 18/0072
(86) International application number:
PCT/IB2021/057652
(87) International publication number:
WO 2022/074474 (14.04.2022 Gazette 2022/15)
(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: 08.10.2020 US 202063089300 P

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

(72) Inventors:
  • THURBER, Ernest L.
    Saint Paul, Minnesota 55133-3427 (US)
  • NELSON, Thomas J.
    Saint Paul, Minnesota 55133-3427 (US)
  • SORENSON, Gregory P.
    Saint Paul, Minnesota 55133-3427 (US)
  • LI, Junting
    Saint Paul, Minnesota 55133-3427 (US)
  • LENTZ, Daniel M.
    Saint Paul, Minnesota 55133-3427 (US)
  • KOETHE, Brian G.
    Saint Paul, Minnesota 55133-3427 (US)
  • SCHWARTZ, Jon T.
    Saint Paul, Minnesota 55133-3427 (US)
  • ZHANG, Jing
    Saint Paul, Minnesota 55133-3427 (US)
  • HAWKINS, Ann M.
    Saint Paul, Minnesota 55133-3427 (US)
  • WILSON, Geoffrey I.
    Saint Paul, Minnesota 55133-3427 (US)
  • RUSTAD, Blake R.
    Saint Paul, Minnesota 55133-3427 (US)
  • MUELLER, Gregory S.
    Saint Paul, Minnesota 55133-3427 (US)

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

   


(54) COATED ABRASIVE ARTICLE AND METHOD OF MAKING THE SAME