(19)

(11)

EP 2 611 742 A1

(12)

(43) Date of publication: 10.07.2013 Bulletin 2013/28 (21) Application number: 11748690.2 (22) Date of filing: 30.08.2011

(51) International Patent Classification (IPC):  C02F 11/14(2006.01) C02F 1/56(2006.01) C02F 1/52(2006.01) (86) International application number: PCT/EP2011/064848 (87) International publication number: WO 2012/028592 (08.03.2012 Gazette 2012/10)

(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 (30) Priority: 02.09.2010 US 379487 P 02.09.2010 EP 10175041 (71) Applicant: Akzo Nobel Chemicals International B.V. 3811 MH Amersfoort (NL)	(72) Inventors: GEERTS, Roy NL-6708 RC Wageningen (NL) EK, Aart NL-7609 CL Almelo (NL) VAN GINKEL, Cornelis Gijsbertus NL-6705 CP Wageningen (NL) REEDIJK, Marianne Frederika NL-4051 BL Ochten (NL) O, Boen Ho NL-3514 CW Utrecht (NL) (74) Representative: Akzo Nobel IP Department  Velperweg 76 6824 BM Arnhem 6824 BM Arnhem (NL)