(19)

(11)

EP 2 454 392 A1

(12)

(43) Date of publication: 23.05.2012 Bulletin 2012/21 (21) Application number: 10716866.8 (22) Date of filing: 09.02.2010

(51) International Patent Classification (IPC):  C23C 2/00(2006.01) C23C 2/40(2006.01) (86) International application number: PCT/IB2010/000244 (87) International publication number: WO 2010/089666 (12.08.2010 Gazette 2010/32)

(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 MK MT NL NO PL PT RO SE SI SK SM TR (30) Priority: 09.02.2009 IT PI20090011 (71) Applicant: Siderprogetti Sa Llc 69000 Lugano (CH)	(72) Inventors: GUADAGNINI, Andrea I-58010 Follonica GR (IT) GUADAGNINI, Edoardo I-57025 Piombino (IT) (74) Representative: Cinquantini, Bruno et al Notarbartolo & Gervasi S.p.A. Corso di Porta Vittoria, 9 20122 Milano 20122 Milano (IT)