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(11)

EP 1 866 261 A1

(12)

(43) Date of publication: 19.12.2007 Bulletin 2007/51 (21) Application number: 05807609.2 (22) Date of filing: 16.11.2005

(51) International Patent Classification (IPC):  C04B 35/76(2006.01) B32B 18/00(2006.01) C04B 35/80(2006.01) E04B 1/20(2006.01) (86) International application number: PCT/EP2005/012364 (87) International publication number: WO 2006/099894 (28.09.2006 Gazette 2006/39)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR (30) Priority: 24.03.2005 IT RE20050030 (71) Applicant: SACMI COOPERATIVA MECCANICI IMOLA SOCIETA' COOPERATIVA 40026 Imola (Bologna) (IT)	(72) Inventors: VALLI, Silvano I-40027 Mordano (IT) RICCI, Claudio I-40026 Imola (IT) (74) Representative: Corradini, Corrado et al Studio Ing. C. CORRADINI & C. S.r.l. 4, Via Dante Alighieri 42100 Reggio Emilia 42100 Reggio Emilia (IT)