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EP 1 853 743 A1

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(43) Date of publication: 14.11.2007 Bulletin 2007/46 (21) Application number: 06716905.2 (22) Date of filing: 17.02.2006

(51) International Patent Classification (IPC):  C22F 1/08(2006.01) B21C 25/02(2006.01) B21C 23/00(2006.01) (86) International application number: PCT/SE2006/000215 (87) International publication number: WO 2006/088421 (24.08.2006 Gazette 2006/34)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR (30) Priority: 18.02.2005 FI 20050195 (71) Applicant: Outokumpu Copper Products Oy 02101 Espoo (FI)	(72) Inventor: IGNBERG, Larz s-723 55 Västerås (SE) (74) Representative: Reyier, Ann-Mari  Bjerkéns Patentbyra KB Box 128 721 05 Västeras 721 05 Västeras (SE)