(19)

(11)

EP 1 397 475 A2

(12)

(88) Date of publication A3: 24.04.2003 (43) Date of publication: 17.03.2004 Bulletin 2004/12 (21) Application number: 02735380.4 (22) Date of filing: 24.05.2002

(51) International Patent Classification (IPC)7: C11D 1/00 (86) International application number: PCT/EP2002/005690 (87) International publication number: WO 2002/102948 (27.12.2002 Gazette 2002/52)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR Designated Extension States: AL LT LV MK RO SI (30) Priority: 31.05.2001 GB 0113155 12.03.2002 GB 0205718 11.04.2002 GB 0208336 25.04.2002 GB 0209445 (71) Applicant: HUNTSMAN INTERNATIONAL LLC Salt Lake City,Utah 84108 (US)	(72) Inventors: FRICK, Hendrick, Petrus Bromsgrove,Worcestershire B60 2RD (GB) CLAPPERTON, Richard, Malcolm Stourbridge,West Midlands DY9 9TQ (GB) (74) Representative: Lawrence, John et al Barker Brettell 138 Hagley RoadEdgbaston Birmingham B16 9PW Birmingham B16 9PW (GB)