(19)

(11)

EP 2 681 361 A1

(12)

(43) Date of publication: 08.01.2014 Bulletin 2014/02 (21) Application number: 12712741.3 (22) Date of filing: 29.02.2012

(51) International Patent Classification (IPC):  E01C 13/08(2006.01) B29B 13/10(2006.01) B29B 9/16(2006.01) B29B 17/04(2006.01) (86) International application number: PCT/IB2012/050941 (87) International publication number: WO 2012/117358 (07.09.2012 Gazette 2012/36)

(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: 02.03.2011 IT TV20110031 (71) Applicant: Graneco Rubber S.r.l. 31054 Possagno (TV) (IT)	(72) Inventors: PRINCIPI, Adalberto I-31054 Possagno (TV) (IT) MANTESE, Giuseppe I-31054 Possagno (TV) (IT) (74) Representative: Parolin, Davide  DP Partners S.r.l. Via Bassanese, 61 31044 Montebelluna (TV) 31044 Montebelluna (TV) (IT)