(19)

(11)

EP 2 670 876 A2

(12)

(88) Date of publication A3: 27.09.2012 (43) Date of publication: 11.12.2013 Bulletin 2013/50 (21) Application number: 12710042.8 (22) Date of filing: 03.02.2012

(51) International Patent Classification (IPC):  C22C 9/04(2006.01) C22C 30/06(2006.01) (86) International application number: PCT/EP2012/051890 (87) International publication number: WO 2012/104426 (09.08.2012 Gazette 2012/32)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR (30) Priority: 04.02.2011 CH 211112011 (71) Applicant: Baoshida Swissmetal AG 2732 Reconvillier (CH)	(72) Inventors: DALLA TORRE, Florian CH-8046 Zürich (CH) TARDENT, Jean-Pierre CH-2714 Les Genevez (CH) (74) Representative: P&TS SA (AG, Ltd.)  Av. J.-J. Rousseau 4 P.O. Box 2848 2001 Neuchâtel 2001 Neuchâtel (CH)