(19)

(11)

EP 2 920 341 A1

(12)

(43) Date of publication: 23.09.2015 Bulletin 2015/39 (21) Application number: 13854930.8 (22) Date of filing: 26.09.2013

(51) International Patent Classification (IPC):  C25B 11/02(2006.01) C25B 11/12(2006.01) C25B 11/03(2006.01) (86) International application number: PCT/US2013/061860 (87) International publication number: WO 2014/077957 (22.05.2014 Gazette 2014/21)

(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: 15.11.2012 US 201213677798 (71) Applicant: MacDermid Acumen, Inc. Waterbury, CT 06702 (US)	(72) Inventors: PEARSON, Trevor Cradley Heath West Midlands B64 7HR (GB) CLARKE, Terence Tettenhall Wolverhampton WV6 8TZ (GB) CHAPANERI, Roshan, V. Foleshill Coventry CV6 5JH (GB) (74) Representative: Jenkins, Peter David  Page White & Farrer Bedford House John Street London WC1N 2BF London WC1N 2BF (GB)