(19)

(11)

EP 1 154 871 A1

(12)

(43) Date of publication: 21.11.2001 Bulletin 2001/47 (21) Application number: 00903838.1 (22) Date of filing: 17.02.2000

(51) International Patent Classification (IPC)7: B22D 41/00, B22D 11/10, B22D 41/58 (86) International application number: PCT/GB0000/518 (87) International publication number: WO 0050/190 (31.08.2000 Gazette 2000/35)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE Designated Extension States: RO SI (30) Priority: 22.02.1999 GB 9903937 (71) Applicant: Foseco International Limited Swindon,Wiltshire SN3 1RE (GB)	(72) Inventor: CLARK, Michael, Robert Stourbridge, West Midlands DY8 1NA (GB) (74) Representative: Hymers, Ronald Robson  BP INTERNATIONAL LIMITEDPatents DivisionChertsey Road Sunbury-on-ThamesMiddlesex, TW16 7LN Sunbury-on-ThamesMiddlesex, TW16 7LN (GB)