(19)

(11)

EP 1 051 377 A1

(12)

(43) Date of publication: 15.11.2000 Bulletin 2000/46 (21) Application number: 99902652.9 (22) Date of filing: 19.01.1999

(51) International Patent Classification (IPC)7: C07C 19/08, C07C 17/20, C07C 17/21 (86) International application number: PCT/GB9900/175 (87) International publication number: WO 9940/053 (12.08.1999 Gazette 1999/32)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 06.02.1998 GB 9802487 (71) Applicant: IMPERIAL CHEMICAL INDUSTRIES PLC London SW1P 3JF (GB)	(72) Inventor: EWING, Paul, Nicholas Warrington WA4 2UT (GB) (74) Representative: Dee, Ian Mark  Eric Potter Clarkson,Park View House,58 The Ropewalk Nottingham NG1 5DD Nottingham NG1 5DD (GB)