(19)

(11)

EP 1 257 618 A1

(12)

(43) Date of publication: 20.11.2002 Bulletin 2002/47 (21) Application number: 01909955.5 (22) Date of filing: 23.02.2001

(51) International Patent Classification (IPC)7: C10L 1/14, C10L 1/02, C10L 10/02 (86) International application number: PCT/GB0100/777 (87) International publication number: WO 0106/2877 (30.08.2001 Gazette 2001/35)

(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: 26.02.2000 GB 0004522 26.02.2000 GB 0004519 (71) Applicant: AAE Technologies International Limited Dublin 2 (IE)	(72) Inventor: RAE, AlanAAE Technologies International plc West Sussex RH16 1TX (GB) (74) Representative: Harrison Goddard Foote  31 St Saviourgate York Y01 8NQ York Y01 8NQ (GB)