(19)

(11)

EP 2 858 788 A1

(12)

(43) Date of publication: 15.04.2015 Bulletin 2015/16 (21) Application number: 13800832.1 (22) Date of filing: 06.06.2013

(51) International Patent Classification (IPC):  B24D 5/12(2006.01) B26D 1/143(2006.01) (86) International application number: PCT/US2013/044439 (87) International publication number: WO 2013/184873 (12.12.2013 Gazette 2013/50)

(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 (30) Priority: 06.06.2012 US 201261656444 P (71) Applicants: Saint-gobain Abrasives, Inc Worcester, Massachusetts 01615-0138 (US) Saint-Gobain Abrasifs 78700 Conflans-Sainte-Honorine (FR)	(72) Inventors: LI, Lingyu Shrewsbury, Massachusetts 01545 (US) MCNEAL, Kelley Marlborough, Massachusetts 01752 (US) SRINIVASAN, Siddharth Chelmsford, Massachusetts 01824 (US) (74) Representative: Leidescher, Thomas  Zimmermann & Partner Postfach 330 920 80069 München 80069 München (DE)