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EP 3 215 287 A1

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(43) Date of publication: 13.09.2017 Bulletin 2017/37 (21) Application number: 14793190.1 (22) Date of filing: 05.11.2014

(51) International Patent Classification (IPC):  B22D 11/124(2006.01) C23F 11/18(2006.01) C23C 22/68(2006.01) (86) International application number: PCT/EP2014/073826 (87) International publication number: WO 2016/070914 (12.05.2016 Gazette 2016/19)

(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, MN 55102 (US)	(72) Inventors: JOHNSON, Donald NL-2342 BV Oegstgeest (NL) ROCA, Laia, More NL-2342 BV Oegstgeest (NL) MYERS, Craig NL-2342 BV Oegstgeest (NL) SERRANO, Paloma Lopez NL-2342 BV Oegstgeest (NL) (74) Representative: Michalski Hüttermann & Partner Patentanwälte mbB  Speditionstraße 21 40221 Düsseldorf 40221 Düsseldorf (DE)