(19)

(11)

EP 2 831 343 A2

(12)

(88) Date of publication A3: 09.01.2014 (43) Date of publication: 04.02.2015 Bulletin 2015/06 (21) Application number: 13712677.7 (22) Date of filing: 22.03.2013

(51) International Patent Classification (IPC):  E02D 27/12(2006.01) (86) International application number: PCT/DK2013/050084 (87) International publication number: WO 2013/143544 (03.10.2013 Gazette 2013/40)

(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 (30) Priority: 29.03.2012 EP 12162113 (71) Applicant: Rockwool International A/S 2640 Hedehusene (DK)	(72) Inventors: HANSEN, Lars Erik DK-2860 Søborg (DK) NØRGAARD, Luis Jørgen DK-4000 Roskilde (DK) (74) Representative: Rohde, Vibeke Warberg et al Awapatent A/S Rigensgade 11 1316 Copenhagen K 1316 Copenhagen K (DK)