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(11)

EP 2 925 846 A1

(12)

(43) Date of publication: 07.10.2015 Bulletin 2015/41 (21) Application number: 13858432.1 (22) Date of filing: 15.11.2013

(51) International Patent Classification (IPC):  C11D 3/36(2006.01) C11D 3/20(2006.01) C11D 3/26(2006.01) B08B 3/08(2006.01) (86) International application number: PCT/US2013/070368 (87) International publication number: WO 2014/085110 (05.06.2014 Gazette 2014/23)

(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: 29.11.2012 CN 201210501952 (71) Applicant: Ecolab USA Inc. St. Paul, Minnesota 55102 (US)	(72) Inventors: FAN, Duo Shanghai 2002245 (CN) LUO, Zhihui Shanghai 200245 (CN) LIU, Yubao Shanghai 200245 (CN) (74) Representative: Godemeyer Blum Lenze Patentanwälte Partnerschaft mbB - werkpatent  An den Gärten 7 51491 Overath 51491 Overath (DE)