(19)

(11)

EP 3 212 839 A1

(12)

(43) Date of publication: 06.09.2017 Bulletin 2017/36 (21) Application number: 15763032.8 (22) Date of filing: 16.09.2015

(51) International Patent Classification (IPC):  D07B 9/00(2006.01) (86) International application number: PCT/EP2015/071205 (87) International publication number: WO 2016/066319 (06.05.2016 Gazette 2016/18)

(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 (30) Priority: 30.10.2014 EP 14191069 (71) Applicant: NV Bekaert SA 8550 Zwevegem (BE)	(72) Inventors: GALLET, Jan 1851 Humbeek (BE) MULLEBROUCK, Rik 8560 Wevelgem (BE) PAUWELS, Hennie 8570 Anzegem (BE) (74) Representative: Messely, Marc  NV Bekaert SA IPD - PC6030 Bekaertstraat 2 8550 Zwevegem Bekaertstraat 2 8550 Zwevegem (BE)