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(11)

EP 2 572 040 A1

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(43) Date of publication: 27.03.2013 Bulletin 2013/13 (21) Application number: 11721682.0 (22) Date of filing: 16.05.2011

(51) International Patent Classification (IPC):  D21H 21/18(2006.01) (86) International application number: PCT/US2011/036603 (87) International publication number: WO 2011/146367 (24.11.2011 Gazette 2011/47)

(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 (30) Priority: 17.05.2010 US 345343 P (71) Applicant: BASF SE 67056 Ludwigshafen (DE)	(72) Inventors: LEVIN, Ron Charlotte North Carolina 28270 (US) LEAVITT, Craig Waxhaw North Carolina 28173 (US) PAKAN, Dwight Charlotte North Carolina 28270 (US) (74) Representative: Altmann, Andreas  Herzog Fiesser & Partner Patentanwälte Isartorplatz 1 80331 München 80331 München (DE)