(19)

(11)

EP 2 052 063 A2

(12)

(88) Date of publication A3: 10.04.2008 (43) Date of publication: 29.04.2009 Bulletin 2009/18 (21) Application number: 07801573.2 (22) Date of filing: 09.08.2007

(51) International Patent Classification (IPC):  C10M 173/02(2006.01) (86) International application number: PCT/EP2007/007049 (87) International publication number: WO 2008/019797 (21.02.2008 Gazette 2008/08)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR Designated Extension States: AL BA HR MK RS (30) Priority: 15.08.2006 DE 102006038311 (71) Applicant: ECOLAB INC. St. Paul, MN 55102-1390 (US)	(72) Inventors: BOTH, Sabine 41470 Neuss (DE) ESKUCHEN, Rainer 40764 Langenfeld (DE) BENERT, Arnold 41468 Neuss (DE) (74) Representative: Polypatent  An den Gärten 7 51491 Overath 51491 Overath (DE)