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(11)

EP 2 941 478 A1

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(43) Date of publication: 11.11.2015 Bulletin 2015/46 (21) Application number: 13870378.0 (22) Date of filing: 31.12.2013

(51) International Patent Classification (IPC):  C11D 7/12(2006.01) C11D 17/00(2006.01) C11D 7/14(2006.01) (86) International application number: PCT/US2013/078513 (87) International publication number: WO 2014/107460 (10.07.2014 Gazette 2014/28)

(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: 04.01.2013 US 201313734204 (71) Applicant: Ecolab USA Inc. St. Paul, Minnesota 55102 (US)	(72) Inventors: TJELTA, Brenda L. St. Paul, MN 55116 (US) SANDERS, Lisa M. Eagan, MN 55122 (US) BESSE, Michael E. Golden Valley, MN 55427 (US) (74) Representative: Godemeyer Blum Lenze Patentanwälte Partnerschaft mbB - werkpatent  An den Gärten 7 51491 Overath 51491 Overath (DE)