(19)

(11)

EP 2 912 217 A1

(12)

(43) Date of publication: 02.09.2015 Bulletin 2015/36 (21) Application number: 13782702.8 (22) Date of filing: 23.10.2013

(51) International Patent Classification (IPC):  D01F 6/04(2006.01) D07B 1/14(2006.01) C08F 210/02(2006.01) D07B 1/02(2006.01) (86) International application number: PCT/EP2013/072182 (87) International publication number: WO 2014/064157 (01.05.2014 Gazette 2014/18)

(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 (30) Priority: 23.10.2012 EP 12189595 (71) Applicant: DSM IP Assets B.V. 6411 TE Heerlen (NL)	(72) Inventors: WIENKE, Dietrich NL-6100 AA Echt (NL) MARISSEN, Roelof NL-6100 AA Echt (NL) VLASBLOM, Martin Pieter NL-6100 AA Echt (NL) (74) Representative: Meessen, Patric Holger  DSM Intellectual Property Urmond Office P.O. Box 4 6100 AA ECHT 6100 AA ECHT (NL)