(19)

(11)

EP 0 877 829 A1

(12)

(43) Date of publication: 18.11.1998 Bulletin 1998/47 (21) Application number: 97901733.0 (22) Date of filing: 30.01.1997

(51) International Patent Classification (IPC):  C22B 15/ 00( . ) C22B 23/ 02( . ) (86) International application number: PCT/GB1997/000275 (87) International publication number: WO 1997/028288 (07.08.1997 Gazette 1997/34)

(84) Designated Contracting States: BE DE ES FI GB SE (30) Priority: 01.02.1996 GB 19960002036 (71) Applicant: Warner, Noel Alfred Rednal Birmingham B45 8ET (GB)	(72) Inventor: Warner, Noel Alfred Rednal Birmingham B45 8ET (GB) (74) Representative: Pearce, Anthony Richmond  MARKS & CLERK, Alpha Tower, Suffolk Street Queensway Birmingham B1 1TT Birmingham B1 1TT (GB)