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(11)

EP 1 373 444 A1

(12)

(43) Date of publication: 02.01.2004 Bulletin 2004/01 (21) Application number: 02703760.5 (22) Date of filing: 08.03.2002

(51) International Patent Classification (IPC)7: C10M 169/04 // (C10M107/34, 129:10, 129:14, 129:34, 129:76, 133:12, 133:40, 133:44, 133:46, 137:04), C10M137:08 (86) International application number: PCT/GB2002/001073 (87) International publication number: WO 2002/077135 (03.10.2002 Gazette 2002/40)

(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: 26.03.2001 GB 0107502 (71) Applicant: Imperial Chemical Industries PLC London W1U 3AN (GB)	(72) Inventors: RANDLES, Steven James MiddlesbroughCleveland TS8 9DQ (GB) CORNER, Mitchell Cleveland TS10 4HX (GB) THOMPSON, Robert Ian George Cleveland TS10 4NJ (GB) (74) Representative: Ralph, Julie Diane  Uniqema LimitedUniqema Intellectual Property Dept.Wilton Centre Redcar TS10 4RF Redcar TS10 4RF (GB)