(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