(19)

(11)

EP 2 173 686 A1

(12)

(43) Date of publication: 14.04.2010 Bulletin 2010/15 (21) Application number: 08761154.7 (22) Date of filing: 18.06.2008

(51) International Patent Classification (IPC):  C04B 38/08(2006.01) (86) International application number: PCT/EP2008/057698 (87) International publication number: WO 2009/010361 (22.01.2009 Gazette 2009/04)

(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: 18.07.2007 IT RE20070086 (71) Applicant: SACMI Cooperativa Meccanici Imola Società Cooperativa 40026 Imola (Bologna) (IT)	(72) Inventors: ACERBI, Pierugo I-40026 Imola (bologna) (IT) BRESCIANI, Andrea I-48018 Faenza (ravenna) (IT) RICCI, Claudio I-40026 Imola (bologna) (IT) (74) Representative: Corradini, Corrado et al Ing. C. Corradini & C. S.r.l. Via Dante Alighieri 4 42100 Reggio Emilia 42100 Reggio Emilia (IT)