(19)

(11)

EP 1 664 420 A2

(12)

(88) Date of publication A3: 02.06.2005 (43) Date of publication: 07.06.2006 Bulletin 2006/23 (21) Application number: 04766635.9 (22) Date of filing: 30.08.2004

(51) International Patent Classification (IPC):  D06P 3/60(1968.09) D06P 1/90(1974.07) D06P 3/82(1968.09) D06P 1/613(1974.07) (86) International application number: PCT/EP2004/051952 (87) International publication number: WO 2005/024123 (17.03.2005 Gazette 2005/11)

(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 PL PT RO SE SI SK TR (30) Priority: 08.09.2003 EP 03405656 (71) Applicant: Ciba Specialty Chemicals Holding Inc. 4057 Basel (CH)	(72) Inventors: HALL-GOULLE, Véronique CH-4143 Dornach (CH) TZIKAS, Athanassios CH-4133 Pratteln (CH)