(19)

(11)

EP 3 443 145 A1

(12)

(43) Date of publication: 20.02.2019 Bulletin 2019/08 (21) Application number: 17786348.7 (22) Date of filing: 11.04.2017

(51) International Patent Classification (IPC):  C25D 3/06(2006.01) C25D 7/00(2006.01) C25D 3/10(2006.01) (86) International application number: PCT/US2017/026951 (87) International publication number: WO 2017/184380 (26.10.2017 Gazette 2017/43)

(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 Designated Validation States: MA MD (30) Priority: 21.04.2016 US 201615134469 (71) Applicant: MacDermid Acumen, Inc. Waterbury, CT 06702 (US)	(72) Inventors: HARA, Masahiro Kawasaki-shi Kanagawa 211-0053 (JP) NISHIYAMA, Tatsuya Chigasaki-shi Kanagawa 253-0011 (JP) (74) Representative: Jenkins, Peter David  Page White & Farrer Bedford House John Street London WC1N 2BF London WC1N 2BF (GB)