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(11)

EP 2 180 929 A1

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(43) Date of publication: 05.05.2010 Bulletin 2010/18 (21) Application number: 08796801.2 (22) Date of filing: 30.07.2008

(51) International Patent Classification (IPC):  B01D 17/04(2006.01) C10G 33/04(2006.01) B08B 9/08(2006.01) C11D 1/00(2006.01) (86) International application number: PCT/US2008/071509 (87) International publication number: WO 2009/018291 (05.02.2009 Gazette 2009/06)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR Designated Extension States: AL BA MK RS (30) Priority: 01.08.2007 MY 0701269 (71) Applicant: 3M Innovative Properties Company Saint Paul, MN 55133-3427 (US)	(72) Inventors: WONG, Huay Meng Sinapore 768923 (SG) SURIAATMAJA, Maria, Singapore 229664 (SG) BARAN, Jimmie R. Jr. Saint Paul, Minnesota 55133-3427 (US) SKILDUM, John D. Saint Paul, Minnesota 55133-3427 (US) (74) Representative: Vossius & Partner  Siebertstraße 4 81675 München 81675 München (DE)