(19)
(11) EP 3 999 280 A1

(12)

(43) Date of publication:
25.05.2022 Bulletin 2022/21

(21) Application number: 20743355.8

(22) Date of filing: 14.07.2020
(51) International Patent Classification (IPC): 
B24B 55/02(2006.01)
B24D 7/00(2006.01)
B24D 7/10(2006.01)
 B24D 5/00(2006.01)
B24D 5/10(2006.01)
B24D 18/00(2006.01)
(52) Cooperative Patent Classification (CPC):
B24B 55/02; B24D 5/10; B24D 7/10; B24D 18/0072
(86) International application number:
PCT/IB2020/056599
(87) International publication number:
WO 2021/009673 (21.01.2021 Gazette 2021/03)
(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: 15.07.2019 US 201962874140 P

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

(72) Inventors:
  • RIFAUT, Jean-Luc
    1831 Deigem (BE)
  • SMITHSON, Robert L. W.
    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 ARTICLES HAVING INTERNAL COOLANT FEATURES AND METHODS OF MANUFACTURING THE SAME