(19)

(11)

EP 3 201 409 A1

(12)

(43) Date of publication: 09.08.2017 Bulletin 2017/32 (21) Application number: 15778239.2 (22) Date of filing: 29.09.2015

(51) International Patent Classification (IPC):  E04D 3/35(2006.01) (86) International application number: PCT/EP2015/072456 (87) International publication number: WO 2016/050784 (07.04.2016 Gazette 2016/14)

(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 Designated Extension States: BA ME Designated Validation States: MA (30) Priority: 29.09.2014 IT MI20141697 (71) Applicant: Isopan S.p.A. 37135 Verona (IT)	(72) Inventor: GUERRINI, Daniele I-37135 Verona (IT) (74) Representative: Faggioni, Carlo Maria et al Fumero S.r.l. Pettenkoferstrasse 20/22 80336 München 80336 München (DE)