(19)

(11)

EP 2 536 516 A1

(12)

(43) Date of publication: 26.12.2012 Bulletin 2012/52 (21) Application number: 11701098.3 (22) Date of filing: 24.01.2011

(51) International Patent Classification (IPC):  B21C 43/04(2006.01) (86) International application number: PCT/EP2011/050914 (87) International publication number: WO 2011/101204 (25.08.2011 Gazette 2011/34)

(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: 19.02.2010 IT MI20100259 (71) Applicant: Semplice S.p.A. 20123 Milano (IT)	(72) Inventor: FRIGERIO, Lucia I-23827 Lierna (IT) (74) Representative: Modiano, Micaela Nadia et al Modiano & Partners (IT) Via Meravigli, 16 20123 Milano 20123 Milano (IT)