(19)
(11) EP 1 242 215 A1

(12)

(43) Date of publication:
25.09.2002 Bulletin 2002/39

(21) Application number: 00989503.8

(22) Date of filing: 21.12.2000
(51) International Patent Classification (IPC)7: B24D 11/00, B24D 3/28
(86) International application number:
PCT/US0035/355
(87) International publication number:
WO 0104/5903 (28.06.2001 Gazette 2001/26)
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 21.12.1999 JP 36283799

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

(72) Inventor:
  • OHISHI, Michihiro
    Sagamihara-shi, Kanagawa 229-1101 (JP)

(74) Representative: VOSSIUS & PARTNER 
Siebertstrasse 4
81675 München
81675 München (DE)

   


(54) ABRASIVE MATERIAL HAVING ABRASIVE LAYER OF THREE-DIMENSIONAL STRUCTURE