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EP 2 609 185 A1

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(43) Date of publication: 03.07.2013 Bulletin 2013/27 (21) Application number: 10754907.3 (22) Date of filing: 27.08.2010

(51) International Patent Classification (IPC):  C11D 7/06(2006.01) C11D 7/22(2006.01) C11D 7/32(2006.01) C11D 7/36(2006.01) C11D 7/14(2006.01) C11D 7/50(2006.01) C11D 7/34(2006.01) C11D 11/00(2006.01) (86) International application number: PCT/EP2010/062566 (87) International publication number: WO 2012/025160 (01.03.2012 Gazette 2012/09)

(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 SE SI SK SM TR (71) Applicant: Ecolab Inc. St. Paul, MN 55102-1390 (US)	(72) Inventors: GERET, Laurence 50259 Pulheim (DE) STINGL, Carola 40597 Düsseldorf (DE) DENZIN, Silke 40764 Langenfeld (DE) (74) Representative: polypatent  An den Gärten 7 51491 Overath 51491 Overath (DE)