(19)

(11)

EP 1 317 571 A1

(12)

(43) Date of publication: 11.06.2003 Bulletin 2003/24 (21) Application number: 01965992.9 (22) Date of filing: 17.08.2001

(51) International Patent Classification (IPC)7: C22C 38/44 (86) International application number: PCT/US0125/849 (87) International publication number: WO 0201/4570 (21.02.2002 Gazette 2002/08)

(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: 17.08.2000 US 641317 (71) Applicant: ATI Properties, Inc. Albany, OR 97321-0580 (US)	(72) Inventor: RAKOWSKI, James, M. Pittsburgh, PA 15212 (US) (74) Representative: Baker, Colin John  Eric Potter ClarksonPark View House58 The Ropewalk Nottingham NG1 5DD Nottingham NG1 5DD (GB)