(19)

(11)

EP 1 654 343 A1

(12)

(43) Date of publication: 10.05.2006 Bulletin 2006/19 (21) Application number: 04743360.2 (22) Date of filing: 12.07.2004

(51) International Patent Classification (IPC):  C10M 173/00(1985.01) C10M 105/40(1985.01) C10M 173/02(1985.01) (86) International application number: PCT/GB2004/003019 (87) International publication number: WO 2005/017078 (24.02.2005 Gazette 2005/08)

(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: 11.08.2003 GB 0318663 (71) Applicant: IMPERIAL CHEMICAL INDUSTRIES PLC London W1U 3AN (GB)	(72) Inventor: LEVERSIDGE, Paul, Lewton Stockton-on-Tees TS15 9ST (GB) (74) Representative: Humphries, Martyn et al Uniqema Intellectual Property Dept., Wilton Centre, Wilton Redcar TS10 4RF Redcar TS10 4RF (GB)