(19)

(11)

EP 1 991 649 A1

(12)

(43) Date of publication: 19.11.2008 Bulletin 2008/47 (21) Application number: 07750058.5 (22) Date of filing: 05.02.2007

(51) International Patent Classification (IPC):  C11D 3/16(2006.01) C11D 3/24(2006.01) (86) International application number: PCT/US2007/003173 (87) International publication number: WO 2007/095014 (23.08.2007 Gazette 2007/34)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR (30) Priority: 13.02.2006 JP 2006035050 (71) Applicant: 3M Innovative Properties Company St. Paul MN 55133-3427 (US)	(72) Inventor: ANDO, Nobuaki Setagaya, Tokyo 158-8583 (JP) (74) Representative: von Kreisler Selting Werner  Patentanwälte P.O. Box 10 22 41 50462 Köln 50462 Köln (DE)