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(11)

EP 2 142 313 A1

(12)

(43) Date of publication: 13.01.2010 Bulletin 2010/02 (21) Application number: 07761882.5 (22) Date of filing: 04.05.2007

(51) International Patent Classification (IPC):  B08B 3/02(2006.01) (86) International application number: PCT/US2007/068229 (87) International publication number: WO 2008/136827 (13.11.2008 Gazette 2008/46)

(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 (71) Applicant: Ecolab INC. 370 North Wabasha Street St. Paul, MN 55102 (US)	(72) Inventors: SLONE, Joe, D. Greensboro, NC 27455 (US) GRANUCCI, Nicolas, A. Greensboro, NC 27410 (US) SUGG, David, E. Cornelius, NC 28031 (US) (74) Representative: Polypatent  Postfach 40 02 43 51410 Bergisch Gladbach 51410 Bergisch Gladbach (DE)