(19)

(11)

EP 2 454 359 A2

(12)

(88) Date of publication A3: 07.07.2011 (43) Date of publication: 23.05.2012 Bulletin 2012/21 (21) Application number: 10800167.8 (22) Date of filing: 16.07.2010

(51) International Patent Classification (IPC):  C11D 7/26(2006.01) D21C 9/02(2006.01) (86) International application number: PCT/US2010/001996 (87) International publication number: WO 2011/008289 (20.01.2011 Gazette 2011/03)

(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 SE SI SK SM TR (30) Priority: 16.07.2009 US 271058 P (71) Applicant: Rhodia Opérations 93306 Aubervilliers (FR)	(72) Inventors: FLUCK, David Elkton MD 21921 (US) SEHGAL, Amit Marlton NJ 08053 (US) AYMES, Charles Monmouth Junction NJ 08852 (US) (74) Representative: Nicolle, Frederick Joseph  Elkington and Fife LLP Thavies Inn House 3-4 Holborn Circus GB-London EC1N 2HA GB-London EC1N 2HA (GB)