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(11)

EP 2 970 823 A1

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(43) Date of publication: 20.01.2016 Bulletin 2016/03 (21) Application number: 13709212.8 (22) Date of filing: 14.03.2013

(51) International Patent Classification (IPC):  C11D 1/66(2006.01) C11D 3/39(2006.01) C11D 1/72(2006.01) C11D 1/83(2006.01) C11D 11/00(2006.01) (86) International application number: PCT/EP2013/055285 (87) International publication number: WO 2014/139577 (18.09.2014 Gazette 2014/38)

(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 (71) Applicant: Ecolab USA Inc. St. Paul, Minnesota 55102 (US)	(72) Inventors: GERECKE, Chris 09599 Freiberg (DE) MERZ, Thomas 40723 Hilden (DE) MOEHRING, Christina 47441 Moers (DE) PESQUERA, Mauri NL-3707 LE Maarssen (NL) UITERWAAL, Simon NL-3998 JK Schalkwijk (NL) VIANEN, Erwin NL-3417 RN Montfoort (NL) (74) Representative: Godemeyer Blum Lenze Patentanwälte Partnerschaft mbB - werkpatent  An den Gärten 7 51491 Overath 51491 Overath (DE)