(19)

(11)

EP 1 611 283 A2

(12)

(88) Date of publication A3: 13.01.2005 (43) Date of publication: 04.01.2006 Bulletin 2006/01 (21) Application number: 04711354.3 (22) Date of filing: 16.02.2004

(51) International Patent Classification (IPC):  D21H 19/44(1990.01) D21H 19/56(1990.01) C09D 7/12(1968.09) (86) International application number: PCT/EP2004/001426 (87) International publication number: WO 2004/076743 (10.09.2004 Gazette 2004/37)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR Designated Extension States: AL LT LV MK (30) Priority: 26.02.2003 GB 0304354 (71) Applicant: Ciba Specialty Chemicals Water Treatments Limited Bradford, West Yorkshire BD12 0JZ (GB)	(72) Inventors: DUNGWORTH, Howard, Roger Brighouse, West Yorkshire HD6 3EH (GB) PETTY, David Bradford, West Yorkshire BD15 7DU (GB) JOKINEN, Olli, Juhani FIN-02460 Kantvik (FI)