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(11)

EP 2 231 891 A1

(12)

(43) Date of publication: 29.09.2010 Bulletin 2010/39 (21) Application number: 08866748.0 (22) Date of filing: 18.12.2008

(51) International Patent Classification (IPC):  C22C 33/02(2006.01) B22F 3/17(2006.01) B22F 3/12(2006.01) B22F 9/08(2006.01) (86) International application number: PCT/SE2008/051511 (87) International publication number: WO 2009/085001 (09.07.2009 Gazette 2009/28)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR Designated Extension States: AL BA MK RS (30) Priority: 27.12.2007 SE 0702892 27.12.2007 US 17038 (71) Applicant: Höganäs Ab (publ) 263 83 Höganäs (SE)	(72) Inventors: LITSTRÖM, Ola SE-263 71 Jonstorp (SE) BENGTSSON, Sven SE-263 39 Höganäs (SE) FRYKHOLM, Robert SE-254 41 Helsingborg (SE) BERGMAN, Ola SE-254 54 Helsingborg (SE)